WEBVTT - Ep 116 It's never lupus (except this time)

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<v Speaker 1>My name is Sarah Johnson, and I have had lupus

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<v Speaker 1>since I was a teenager. When I was fourteen fifteen,

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<v Speaker 1>I started having this series of fevers, and they were

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<v Speaker 1>kind of a couple days a week once a month,

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<v Speaker 1>and then all of a sudden, they were for a

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<v Speaker 1>whole week each month, and then they just the time

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<v Speaker 1>in between them started getting smaller and smaller. I couldn't

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<v Speaker 1>find any source of infection or reason that I would

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<v Speaker 1>be having any fevers. For some reason, these fevers would

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<v Speaker 1>get extremely high in like one O two, one oh three.

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<v Speaker 1>I would be really nauseous. I wasn't able to eat.

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<v Speaker 1>I wasn't really able to keep food down or liquid down,

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<v Speaker 1>and I ate a lot of popsicles because it was

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<v Speaker 1>the only thing that I could eat for a long time.

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<v Speaker 1>With these fevers would come a lot of soreness. It

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<v Speaker 1>was difficult to get up and walk around, especially in

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<v Speaker 1>my ankles and my knees and my hip. It was

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<v Speaker 1>uncomfortable to sleep. After a while, it just had been

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<v Speaker 1>months of this type of back and forth fevering, not

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<v Speaker 1>being able to keep a lot down, and the fevers

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<v Speaker 1>got high enough and I got weak enough that I

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<v Speaker 1>had to go to the hospital and I stayed in

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<v Speaker 1>the hospital for probably about two months. So I was

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<v Speaker 1>around fifteen at this time, so you know, leaving school

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<v Speaker 1>at the age of fifteen it is extremely traumatic because

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<v Speaker 1>your friends are.

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<v Speaker 2>Pretty much the most important thing to you.

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<v Speaker 1>So going into the hospital, I had to start fluids,

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<v Speaker 1>and this was basically just to get me up to

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<v Speaker 1>a baseline where I felt semi normal again. And then

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<v Speaker 1>with those fluids, I had too many fluids. I had

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<v Speaker 1>pleurisy in my lungs, which is inflammation of the tissue

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<v Speaker 1>around your lungs. So then I had a really difficult

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<v Speaker 1>time breathing and they had to help drain fluids out

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<v Speaker 1>of my lungs and give me LASiS to help me

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<v Speaker 1>kind of shed that fluid. So that was kind of

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<v Speaker 1>the first little bit of my introduction to whatever we

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<v Speaker 1>thought was going on with my body. At the time,

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<v Speaker 1>I didn't know anything about lupus. And at the hospital

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<v Speaker 1>I was at the Children's hospital, they did a lot

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<v Speaker 1>of different tests. They tested me for all sorts of

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<v Speaker 1>different blood disorders, lime disease, rocky mountains, spotted fever, if

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<v Speaker 1>I had a spinal tap to see if I had

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<v Speaker 1>some sort of infection, really anything that you could think of.

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<v Speaker 1>I was having blood drawn all the time, and really

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<v Speaker 1>it didn't It wasn't until I started seeing a rheumatologist

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<v Speaker 1>at the hospital that she started suggesting that it could

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<v Speaker 1>be something called adult onset Stills disease or juvenile Stills disease,

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<v Speaker 1>where you have sometimes when I would have these fevers,

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<v Speaker 1>I would have this under this skin, not quite a rash,

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<v Speaker 1>but it was like a modeling where almost when you

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<v Speaker 1>get a bruise and you have like a speckley red

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<v Speaker 1>under your skin. So I'd have that on the back

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<v Speaker 1>of my upper arms and on the inside of my knees,

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<v Speaker 1>and when I would when I would shower actually is

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<v Speaker 1>when they would get most prominent, so almost like when

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<v Speaker 1>there was heat and kind of inflammation in those areas,

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<v Speaker 1>and so she noticed that as a sign that, oh,

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<v Speaker 1>that's sometimes related to this rheumatoid condition, so maybe that's

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<v Speaker 1>what's going on, and so kind of that was just

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<v Speaker 1>my diagnosis for a long time, and really the only

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<v Speaker 1>way I got better was by staying in the hospital,

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<v Speaker 1>getting tons of fluids and eventually starting a course of

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<v Speaker 1>steroids or pread and zone and taking that for a very,

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<v Speaker 1>very very long time. I think I was probably on

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<v Speaker 1>sixty milligrams or more of premazone for six months to

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<v Speaker 1>a year, and based on all the things that had

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<v Speaker 1>happened to me in the hospital, the stress to my

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<v Speaker 1>body and my immune system for that long, I remember

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<v Speaker 1>having like on my sixteenth birthday, I have pictures of

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<v Speaker 1>me with different colored roots in my hair because my

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<v Speaker 1>hair started growing a different color. So anyways, really that

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<v Speaker 1>time just kind of passed, and then after all of

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<v Speaker 1>this course of medication, I got a lot better. I

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<v Speaker 1>would say the biggest thing that I can remember coming

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<v Speaker 1>out of that was I had very very intense anxiety

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<v Speaker 1>for a long time after that, for a few years,

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<v Speaker 1>and I was fortunate enough to see a therapist who

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<v Speaker 1>focused on chronic diseases, especially with people like my age,

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<v Speaker 1>and just learn how to use a lot of coping

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<v Speaker 1>skills to not be really scared all the time, because

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<v Speaker 1>when you have something like this that you don't know

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<v Speaker 1>where it came from or how it was spurred, you

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<v Speaker 1>never know when it's going to happen again, or what's

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<v Speaker 1>going to cause it, or what you're doing that's going

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<v Speaker 1>to make it harder for you. One big thing is

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<v Speaker 1>stress in my life was very stressful in my preteen years.

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<v Speaker 1>There's a lot going on in my life and at home,

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<v Speaker 1>and you're told to manage your stress, but when you're

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<v Speaker 1>fifteen sixteen, it seems almost impossible. So that took me

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<v Speaker 1>a long time to adjust. But now at thirty five

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<v Speaker 1>years old, I feel like I'm doing a lot better

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<v Speaker 1>with it. So from fifteen sixteen, I didn't really have

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<v Speaker 1>any issues with this. Again, I think probably until I

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<v Speaker 1>was around twenty one. I probably treated my body pretty

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<v Speaker 1>poorly in my twenties, so I just assumed that whatever

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<v Speaker 1>was going on with me was just me being run

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<v Speaker 1>down and tired and started getting fevers again and then

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<v Speaker 1>having a lot of the same issues. So I found

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<v Speaker 1>a new roomatologist at that time basically said, oh, it's

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<v Speaker 1>just this stills disease. You're going to grow out of it.

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<v Speaker 1>Don't worry about it. So I moved on to another

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<v Speaker 1>rheumatologist because I did not believe that whatsoever, And they

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<v Speaker 1>looked at a lot of my past history which the

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<v Speaker 1>previous roomatologists had not done, and said, you know, a

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<v Speaker 1>lot of this really looks like lupus. There's this new

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<v Speaker 1>test out there now where we can search for this

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<v Speaker 1>essentially if you're more likely to have lupus or not,

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<v Speaker 1>and it came back positive. So this is the best

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<v Speaker 1>we can do at trying to figure out if it's

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<v Speaker 1>potentially lupus. But at the end of the day, most

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<v Speaker 1>of the trees treatments for this type of illness are

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<v Speaker 1>the same. So I started hydroxychloroquin or plaquino when I

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<v Speaker 1>was around twenty one, and I've been on it for

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<v Speaker 1>fifteen years now pretty much with very few.

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<v Speaker 2>Issues or side effects.

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<v Speaker 1>I'm at a stage with my loopus where I really

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<v Speaker 1>only seemed to have a flare up every three years

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<v Speaker 1>or so. Seemed like I had a flare up in

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<v Speaker 1>twenty fourteen, twenty fifteen, then again in twenty seventeen, twenty eighteen,

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<v Speaker 1>and then again twenty twenty twenty twenty one, which was

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<v Speaker 1>a very strange time to have a flare up. A

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<v Speaker 1>strange but also very positive time to have a flare

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<v Speaker 1>up because I didn't have anywhere that I had to go,

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<v Speaker 1>you know, I really could focus on taking care of myself.

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<v Speaker 1>I spent a lot of time in my garden. But

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<v Speaker 1>it was a really brutal flare up. The challenge for

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<v Speaker 1>me has been. When you move and you see a

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<v Speaker 1>different rheumatologist, you kind of have to explain your whole

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<v Speaker 1>story to them over and over again. So for anyone

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<v Speaker 1>who has this or has anything similar, being your own

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<v Speaker 1>ad and keeping really good records is crucial because when

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<v Speaker 1>I had this issue again in twenty twenty, I had

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<v Speaker 1>to find a new doctor. I had different insurance at

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<v Speaker 1>that time, and when you're well, you don't think to

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<v Speaker 1>deal with any of this stuff. They came in handy

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<v Speaker 1>when I was sick because I could take all this

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<v Speaker 1>information to my new doctor in twenty twenty and say,

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<v Speaker 1>this feels similar but different, and here's all the information

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<v Speaker 1>that I have. So I stayed on premozone for most

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<v Speaker 1>of the rest of the year, and I finally started

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<v Speaker 1>feeling a lot better. And then phasing out of prednozone

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<v Speaker 1>was equally as difficult, I feel like as going onto

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<v Speaker 1>the prednizone because your body then kind of adjusts to

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<v Speaker 1>this elevated level of incredibleness, which is feeling amazing. So

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<v Speaker 1>since then I've been pretty well. Like I said, I

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<v Speaker 1>was fortunate that I didn't have a lot requiring my

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<v Speaker 1>attention that year. I didn't need to do field work

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<v Speaker 1>for grad school. For a lot of people, those are

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<v Speaker 1>very limiting factors to a disease like lupus, where you

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<v Speaker 1>just can't expect what your schedule is going to look

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<v Speaker 1>like or be able to anticipate these events in your

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<v Speaker 1>life that may need to completely be canceled or changed

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<v Speaker 1>because you don't know when or where you're going to

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<v Speaker 1>have a flare up. Personally, I've chosen probably one of

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<v Speaker 1>the worst fields to be in for someone with a

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<v Speaker 1>chronic inflammatory disorder. I'm a field biologist. I spend a

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<v Speaker 1>lot of time outside in the sun, physically active, but

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<v Speaker 1>I love it and it's what matters to me. So

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<v Speaker 1>I've over the years found ways to have a more

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<v Speaker 1>flexible schedule or a schedule that's more adapted to what

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<v Speaker 1>I need and when I'm capable. I also take really

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<v Speaker 1>good care of myself in terms of wearing protective clothing.

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<v Speaker 1>I treat all of my clothing with sunnguard, and I

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<v Speaker 1>wear long sleeves, and I wear big hats, and I

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<v Speaker 1>wear a ton of sunscreen and so all of those

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<v Speaker 1>things in addition to therapy and you know, making sure

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<v Speaker 1>I keep my stress at a good level and trying

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<v Speaker 1>to get a lot of sleep. So yeah, I guess

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<v Speaker 1>that's most of my life with lucas. I think that

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<v Speaker 1>I'm very fortunate to have whatever version of this chronic

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<v Speaker 1>disease that I have, because I can lead a pretty

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<v Speaker 1>normal life. It's tough when I'm in a flare up,

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<v Speaker 1>but I do feel like over time, I've built this

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<v Speaker 1>kind of anthology of wisdom and knowledge that has helped

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<v Speaker 1>me manage it so much better than I could have

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<v Speaker 1>ever dreamed of when I was fifteen and things really

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<v Speaker 1>felt terrible.

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<v Speaker 3>Wow, like wow, thank you, Sarah, thank you so much

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<v Speaker 3>for sharing your story with us.

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<v Speaker 2>Yeah, Sarah, thank you that, I mean thanks for having

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<v Speaker 2>to go through that by telling us this story and

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<v Speaker 2>then sharing it with everyone. Just yeah, yeah, thanks, We're

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<v Speaker 2>really grateful. Hi. I'm Erin Welsh and I'm Erin Almond

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<v Speaker 2>Updike And this is this podcast will kill.

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<v Speaker 3>You And today if you haven't figured it out, we're

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<v Speaker 3>talking about lupus.

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<v Speaker 2>We are. This is a okay, this is probably the

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<v Speaker 2>what is this our sixth episode? So the sixth time

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<v Speaker 2>this season that we have said it's gonna be a

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<v Speaker 2>big one. Yeah, and we've been right in every case.

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<v Speaker 2>There's a lot to cover here, So should we get

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<v Speaker 2>straight down to business? We should. It's quarantiny time. Excellent.

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<v Speaker 2>What are we drinking this week? We're drinking the Butterfly smash.

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<v Speaker 2>Love this why is the favorite?

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<v Speaker 3>So shout out Sarah love this quarantiny title. She came

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<v Speaker 3>up with it because she's amazing. It's butterfly smash because

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<v Speaker 3>there is a very typical rash that you can see

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<v Speaker 3>in lupus that is often called a butterfly rash.

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<v Speaker 2>But it's a great it's a really good name, it

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<v Speaker 2>really is. And a good drink erin what's in it? Yeah,

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<v Speaker 2>So this is actually a listener suggestion, So thank you

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<v Speaker 2>so much for sending this over because it is delicious.

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<v Speaker 2>So it is a bourbon fizz, so bourbon and then

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<v Speaker 2>strawberry puree and lime juice topped with ginger beer. So refreshing,

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<v Speaker 2>so delightful, so so so so yum.

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<v Speaker 3>And we'll post the full recipe for that quarantine as

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<v Speaker 3>well as our non alcoholic plasy but Rita on our website.

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<v Speaker 2>This podcast will kill you dot com and all of

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<v Speaker 2>our visual media channels. We certainly will. Yeah. On our

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<v Speaker 2>website you can find the things that you can always

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<v Speaker 2>find there transcripts, the sources for each and every one

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<v Speaker 2>of our episodes. We've got links to bookshop dot org,

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<v Speaker 2>to goodreads list to music by Bloodmobile. Just go check

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<v Speaker 2>it out. It's great everything. Yeah. Great.

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<v Speaker 3>We do have a small piece of business to announce

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<v Speaker 3>before we get into the content of this episode, and

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<v Speaker 3>that is that you will notice a slight schedule change

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<v Speaker 3>coming up in our episode, really schedule because I Aaron

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<v Speaker 3>Almann Updike am having another baby and we'll be taking

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<v Speaker 3>a leave of absence for a short time.

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<v Speaker 2>It's amazing. I'm super excited. It's going to be an adventure.

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<v Speaker 2>But Aaron Welsh has covered because she's.

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<v Speaker 3>Got tons of bonus episode content that's going to be

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<v Speaker 3>filling in any gaps.

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<v Speaker 2>So yeah, So episodes will be coming out every other week,

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<v Speaker 2>but instead of one regular season episode every other week,

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<v Speaker 2>it'll be regular season episode two weeks later, bonus episode

0:13:32.120 --> 0:13:35.199
<v Speaker 2>two weeks later regular episode. And this is just for

0:13:35.280 --> 0:13:37.680
<v Speaker 2>a short amount of time, so we'll be back to

0:13:37.760 --> 0:13:46.600
<v Speaker 2>our regularly scheduled programming briefly, all right, Well, any other business,

0:13:46.840 --> 0:13:48.880
<v Speaker 2>I don't think so. I think that we should get

0:13:48.880 --> 0:13:53.640
<v Speaker 2>started on this massive topic. I can't wait right after

0:13:53.679 --> 0:13:54.200
<v Speaker 2>this break.

0:14:27.280 --> 0:14:34.160
<v Speaker 3>So lupus, or as it's more properly called, systemic lupus arithematosis,

0:14:36.960 --> 0:14:40.000
<v Speaker 3>the first question that you may have listeners is what

0:14:40.160 --> 0:14:40.480
<v Speaker 3>is this?

0:14:42.400 --> 0:14:44.880
<v Speaker 2>And the truth of the matter is we still simply

0:14:44.920 --> 0:14:49.560
<v Speaker 2>don't know. Will we have a better understanding forty minutes

0:14:49.600 --> 0:14:52.200
<v Speaker 2>from now, Yeah, yeah, we will for sure for sure.

0:14:54.200 --> 0:14:56.000
<v Speaker 3>But I want to start with a quote which I

0:14:56.040 --> 0:15:00.600
<v Speaker 3>don't do very often, but I read a paper from

0:15:00.640 --> 0:15:03.640
<v Speaker 3>like twenty years ago, was published in two thousand and three,

0:15:03.800 --> 0:15:07.240
<v Speaker 3>and that really just highlighted how little we knew then

0:15:07.400 --> 0:15:10.240
<v Speaker 3>about the path of physiology of lupus, and I was like, well,

0:15:10.280 --> 0:15:12.880
<v Speaker 3>surely when I get to the more recent papers. So

0:15:13.000 --> 0:15:14.800
<v Speaker 3>then there was a paper that came out in twenty

0:15:14.880 --> 0:15:19.320
<v Speaker 3>nineteen in the Lancet that started off strong with this quote.

0:15:20.040 --> 0:15:27.080
<v Speaker 3>Quote Systemic lupus arithematosis is not only the prototypic systemic

0:15:27.120 --> 0:15:31.760
<v Speaker 3>autoimmune disease, but also one of the most heterogeneous illnesses

0:15:31.880 --> 0:15:33.160
<v Speaker 3>treated by physicians.

0:15:33.600 --> 0:15:37.520
<v Speaker 2>End quote. It doesn't really tell you much, doesn't. Nope,

0:15:37.560 --> 0:15:38.160
<v Speaker 2>it doesn't.

0:15:38.240 --> 0:15:43.960
<v Speaker 3>And also just like it really underscores just how okay

0:15:43.960 --> 0:15:46.280
<v Speaker 3>we need to just keep going because it's going to

0:15:46.360 --> 0:15:50.520
<v Speaker 3>be too much Okay, I am a little worried that

0:15:50.600 --> 0:15:54.240
<v Speaker 3>for some people this biology section might feel very unsatisfying,

0:15:54.400 --> 0:15:57.000
<v Speaker 3>But the truth is that that's because lupus is a

0:15:57.040 --> 0:16:00.760
<v Speaker 3>disorder that we still just don't fully understand. And I

0:16:01.280 --> 0:16:05.480
<v Speaker 3>really wonder if we will find in the years to

0:16:05.560 --> 0:16:09.320
<v Speaker 3>come that what we now call loopus or even systemic

0:16:09.360 --> 0:16:14.400
<v Speaker 3>lupus arithematosis, is actually this very very large umbrella under

0:16:14.480 --> 0:16:18.479
<v Speaker 3>which we might have in the future many different disorders

0:16:18.680 --> 0:16:21.920
<v Speaker 3>as we understand more of the genetics and everything that

0:16:22.040 --> 0:16:23.360
<v Speaker 3>underpin this disease.

0:16:24.720 --> 0:16:26.720
<v Speaker 2>But in any case, we will try our best.

0:16:26.880 --> 0:16:29.640
<v Speaker 3>So what I'm going to do is first highlight some

0:16:29.680 --> 0:16:33.440
<v Speaker 3>of the most common symptoms, which there are a lot,

0:16:34.440 --> 0:16:38.280
<v Speaker 3>how we diagnose lupus, what we know so far about

0:16:38.320 --> 0:16:42.480
<v Speaker 3>both the big picture, you know, risk factors and contributing factors,

0:16:42.560 --> 0:16:45.240
<v Speaker 3>as well as the nitty gritty path of physiology of

0:16:45.240 --> 0:16:48.640
<v Speaker 3>what's happening in our bodies in someone with lupus, and

0:16:48.680 --> 0:16:50.560
<v Speaker 3>then at least a little bit about how it's treated

0:16:50.640 --> 0:16:53.400
<v Speaker 3>or managed, which is a lot of ground to cover. So,

0:16:55.680 --> 0:16:58.200
<v Speaker 3>like I said, already, lupus, which is how I'm going

0:16:58.240 --> 0:17:02.160
<v Speaker 3>to refer to it from now on, is a chronic

0:17:03.120 --> 0:17:09.800
<v Speaker 3>systemic autoimmune disease. There are, and I'll mention all of these,

0:17:09.920 --> 0:17:13.800
<v Speaker 3>some other forms of lupus that are sometimes lumped within lupus,

0:17:13.800 --> 0:17:16.800
<v Speaker 3>and sometimes they're very separated, and I'll at least mention

0:17:16.920 --> 0:17:19.880
<v Speaker 3>all of them. But there is cutaneous loopus, which means

0:17:19.880 --> 0:17:24.040
<v Speaker 3>that you might only have skin findings without any systemic symptoms.

0:17:24.960 --> 0:17:27.560
<v Speaker 3>There is a drug induced lupus that is brought on

0:17:27.800 --> 0:17:31.320
<v Speaker 3>by medications, but generally not something that turns into a

0:17:31.359 --> 0:17:36.159
<v Speaker 3>chronic disease. It usually resolves with stopping that medication. And

0:17:36.160 --> 0:17:39.480
<v Speaker 3>then there's also neonatal loopus, which can happen to infants

0:17:39.480 --> 0:17:41.720
<v Speaker 3>that are born to people with lupus.

0:17:42.200 --> 0:17:43.040
<v Speaker 2>Huh.

0:17:43.160 --> 0:17:47.280
<v Speaker 3>But today our focus is sle systemic loopus. Henceforth, again

0:17:47.320 --> 0:17:51.360
<v Speaker 3>I'm just gonna call loopus. And we have covered on

0:17:51.400 --> 0:17:54.760
<v Speaker 3>this podcast a number of other autoimmune diseases in the past.

0:17:55.000 --> 0:17:58.160
<v Speaker 3>We've talked about MS, We've talked about type one diabetes.

0:17:59.040 --> 0:18:04.239
<v Speaker 3>But to refresh everyone, autoimmune simply means that one of

0:18:04.280 --> 0:18:09.119
<v Speaker 3>the main pathologic drivers of a disease is the production

0:18:09.280 --> 0:18:14.760
<v Speaker 3>of antibodies that are attacking one's self rather than only

0:18:14.800 --> 0:18:20.320
<v Speaker 3>attacking non self. And this auto antibody as they're called

0:18:20.440 --> 0:18:24.560
<v Speaker 3>production is associated with a whole bunch of other immune

0:18:24.600 --> 0:18:29.520
<v Speaker 3>system dysregulation that can lead to inflammation and damage to

0:18:29.680 --> 0:18:32.560
<v Speaker 3>various parts of the body. In the case of the

0:18:32.600 --> 0:18:36.280
<v Speaker 3>other autoimmune diseases that we have covered on the podcast,

0:18:36.480 --> 0:18:40.280
<v Speaker 3>for example, MS, it's predominantly just affecting our central nervous

0:18:40.359 --> 0:18:45.000
<v Speaker 3>system right, destroying our nerve axon sheets. Type one diabetes

0:18:45.160 --> 0:18:48.879
<v Speaker 3>is auto antibodies destroying the insulin producing cells of our pancreas.

0:18:50.200 --> 0:18:53.560
<v Speaker 3>These are you can think of as like very targeted,

0:18:53.760 --> 0:18:58.040
<v Speaker 3>localized autoimmune disorders. They're affecting a single organ or a

0:18:58.040 --> 0:19:03.480
<v Speaker 3>single organ system. Lupus, on the other hand, is systemic.

0:19:04.200 --> 0:19:08.159
<v Speaker 3>It does not discriminate, and it has the capacity to

0:19:08.280 --> 0:19:13.560
<v Speaker 3>affect any and every organ or organ system or part

0:19:13.720 --> 0:19:17.159
<v Speaker 3>of our body. And that is what makes it so

0:19:17.680 --> 0:19:24.360
<v Speaker 3>incredibly difficult. It's not the only systemic autoimmune disease, rheumatoid arthritis,

0:19:24.560 --> 0:19:27.720
<v Speaker 3>chogrin syndrome, there are a lot of others, but lupus

0:19:27.920 --> 0:19:31.960
<v Speaker 3>is probably the most heterogeneous and difficult to get a

0:19:32.000 --> 0:19:34.600
<v Speaker 3>handle on. So of course it's the first one that

0:19:34.640 --> 0:19:36.400
<v Speaker 3>we're going to cover on this podcast.

0:19:36.880 --> 0:19:40.719
<v Speaker 2>Uh, tell me what you mean by heterogeneous In this context.

0:19:40.520 --> 0:19:44.280
<v Speaker 3>Let me tell you by going over the symptoms, that'll

0:19:44.280 --> 0:19:46.800
<v Speaker 3>do it. Yeah, And that's really what I mean is

0:19:46.840 --> 0:19:50.000
<v Speaker 3>that the way that this can present, both in terms

0:19:50.040 --> 0:19:52.920
<v Speaker 3>of the symptoms and in terms of the laboratory findings

0:19:52.920 --> 0:19:57.159
<v Speaker 3>that we see very a ton person to person. So

0:19:57.480 --> 0:20:01.040
<v Speaker 3>one person's experience with lupus might be higherly different than

0:20:01.080 --> 0:20:02.920
<v Speaker 3>another person's experience with lupus.

0:20:03.400 --> 0:20:05.440
<v Speaker 2>Okay, So when it comes.

0:20:05.160 --> 0:20:08.360
<v Speaker 3>To the symptoms, because of that, I can't give you,

0:20:08.400 --> 0:20:11.600
<v Speaker 3>like I often do this timeline of events of what

0:20:11.720 --> 0:20:14.160
<v Speaker 3>happens in terms of symptoms, like first we see this

0:20:14.280 --> 0:20:18.560
<v Speaker 3>and then this, Because somebody with loopus can present with

0:20:18.720 --> 0:20:21.280
<v Speaker 3>any or all of the symptoms that I'm going to

0:20:21.320 --> 0:20:25.040
<v Speaker 3>go over. It's unlikely that someone would have all of

0:20:25.040 --> 0:20:28.560
<v Speaker 3>these symptoms at once, but it is entirely possible that

0:20:28.600 --> 0:20:31.480
<v Speaker 3>they could have all or nearly all of them throughout

0:20:31.520 --> 0:20:36.720
<v Speaker 3>their lifetime at different times. So the diagnosis of lupus

0:20:36.800 --> 0:20:40.040
<v Speaker 3>is really challenging. Because of that, it is easy to

0:20:40.240 --> 0:20:44.479
<v Speaker 3>both under attribute symptoms, to not recognize symptoms as related

0:20:44.520 --> 0:20:48.200
<v Speaker 3>to lupus, as well as over a tribute, especially if

0:20:48.200 --> 0:20:51.400
<v Speaker 3>somebody has a previous diagnosis of lupus, to just assume

0:20:51.520 --> 0:20:55.879
<v Speaker 3>that everything someone's experiencing is related only to lupus, like

0:20:56.280 --> 0:20:56.960
<v Speaker 3>a la house.

0:20:58.560 --> 0:21:02.040
<v Speaker 2>So how then is some thing determined to be over

0:21:02.600 --> 0:21:05.080
<v Speaker 2>or under attributed, right, Like, how do you know that

0:21:05.119 --> 0:21:08.800
<v Speaker 2>it's correctly attributed to lupus? Oh, Aaron, if I had

0:21:08.800 --> 0:21:11.320
<v Speaker 2>an answer to that, we don't have any sort of

0:21:11.359 --> 0:21:14.640
<v Speaker 2>cellular diagnostics, so we do for a lot of these.

0:21:14.680 --> 0:21:16.760
<v Speaker 3>So let's get into what some of the most common

0:21:16.800 --> 0:21:21.640
<v Speaker 3>symptoms are and then we can talk about kind of that. Okay, okay, Yeah,

0:21:21.800 --> 0:21:23.960
<v Speaker 3>So one of the most common symptoms that we see

0:21:24.400 --> 0:21:28.760
<v Speaker 3>is arthritis. Arthritis is a major symptom of loopus, with

0:21:28.840 --> 0:21:32.159
<v Speaker 3>about eighty five percent of people with loopus having symptoms

0:21:32.200 --> 0:21:37.239
<v Speaker 3>of inflammation and pain in the joints. Joint involvement is

0:21:37.280 --> 0:21:42.200
<v Speaker 3>actually one of the most universal symptoms of systemic autoimmune diseases.

0:21:43.640 --> 0:21:47.439
<v Speaker 3>Why our joints specifically are so susceptible to this type

0:21:47.440 --> 0:21:52.520
<v Speaker 3>of autoimmune inflammation, we don't know, but they definitely are.

0:21:52.960 --> 0:21:56.639
<v Speaker 3>So Arthritis pain in your joints, especially in the hands,

0:21:57.040 --> 0:21:59.639
<v Speaker 3>in the wrists, but it could be any joint in

0:21:59.640 --> 0:22:04.160
<v Speaker 3>your d higher body. That's one huge one. Then there

0:22:04.200 --> 0:22:10.440
<v Speaker 3>are a whole host of skin manifestations, and these can

0:22:10.600 --> 0:22:13.439
<v Speaker 3>vary widely. I'll talk about some of the most common ones.

0:22:14.720 --> 0:22:20.440
<v Speaker 3>Many of these are brought on or exacerbated by exposure

0:22:20.560 --> 0:22:23.440
<v Speaker 3>to the sun. So a new rash or a new

0:22:23.480 --> 0:22:26.960
<v Speaker 3>skin finding that's brought on after sun exposure is something

0:22:27.000 --> 0:22:31.320
<v Speaker 3>that might make someone think lupus. And as I mentioned

0:22:31.320 --> 0:22:34.600
<v Speaker 3>early on, some of these skin findings are also found

0:22:34.680 --> 0:22:39.879
<v Speaker 3>in people that have cutaneous lupus, arithematosis or cle That

0:22:40.160 --> 0:22:43.520
<v Speaker 3>doesn't necessarily mean that they have any systemic symptoms of lupus,

0:22:44.760 --> 0:22:49.560
<v Speaker 3>so it's it's a lot, but the skin involvement happens

0:22:49.600 --> 0:22:51.959
<v Speaker 3>in again about seventy to eighty percent of people that

0:22:52.119 --> 0:22:57.600
<v Speaker 3>have lupus systemic lupus, and they can be classified by

0:22:57.720 --> 0:23:01.520
<v Speaker 3>how quickly they appear or how long they last. So

0:23:01.600 --> 0:23:07.000
<v Speaker 3>there's some rashes like the malar rash or the butterfly rash.

0:23:07.359 --> 0:23:11.600
<v Speaker 3>This is like a reddish, not very raised rash that

0:23:11.760 --> 0:23:15.000
<v Speaker 3>goes across the nose and onto the cheeks and really

0:23:15.040 --> 0:23:17.520
<v Speaker 3>looks kind of like a butterfly, like if your nose

0:23:17.640 --> 0:23:19.560
<v Speaker 3>was the body of a butterfly, and then your cheeks

0:23:19.560 --> 0:23:23.200
<v Speaker 3>are like the wings. And it doesn't usually go into

0:23:23.240 --> 0:23:29.760
<v Speaker 3>the nasolabial folds like right, interesting, that's your smile lines. Yeah,

0:23:30.000 --> 0:23:32.040
<v Speaker 3>so that's one type of rash that we can see,

0:23:32.160 --> 0:23:34.879
<v Speaker 3>very often brought on by being in the sun or

0:23:34.880 --> 0:23:40.359
<v Speaker 3>by sun exposure. Sometimes the skin findings might be ulcers

0:23:40.760 --> 0:23:45.120
<v Speaker 3>in the mouth or other mucous membranes. You could have

0:23:45.400 --> 0:23:50.000
<v Speaker 3>just disseminated like splotchy red bumps kind of all over,

0:23:51.119 --> 0:23:56.200
<v Speaker 3>or a number of different discrete patches on the skin,

0:23:56.440 --> 0:24:02.640
<v Speaker 3>especially on sun exposed areas, that look round like discoid

0:24:02.960 --> 0:24:06.760
<v Speaker 3>is one very common finding. Maybe a little bit like

0:24:06.840 --> 0:24:10.520
<v Speaker 3>a psoriasis plaque, so something that's like raised and kind

0:24:10.520 --> 0:24:14.840
<v Speaker 3>of scaly. That's a common one. You could also have

0:24:15.119 --> 0:24:19.280
<v Speaker 3>blisters that aren't very superficial but are kind of underneath

0:24:19.280 --> 0:24:23.240
<v Speaker 3>that first layer of skin. There are a few other

0:24:23.280 --> 0:24:27.359
<v Speaker 3>things that we might see. Leveto reticularis one of my

0:24:27.400 --> 0:24:32.040
<v Speaker 3>favorite words. This is a lacy pattern of purple like

0:24:32.280 --> 0:24:35.360
<v Speaker 3>modeling that you might see usually on the lower legs,

0:24:36.200 --> 0:24:40.240
<v Speaker 3>or rainode syndrome, which is where in the cold, the

0:24:40.320 --> 0:24:42.960
<v Speaker 3>tips of your fingers or your toes turn white or

0:24:42.960 --> 0:24:46.320
<v Speaker 3>even blue or purple and it's incredibly painful.

0:24:47.640 --> 0:24:49.520
<v Speaker 2>Those last two, the levito.

0:24:49.200 --> 0:24:53.159
<v Speaker 3>Reticularis and the rain nods are related more to vasospasm

0:24:53.240 --> 0:24:57.200
<v Speaker 3>of blood vessels, but you see those skin manifestations with them.

0:24:58.720 --> 0:25:01.960
<v Speaker 3>And then we also can see hair loss or what's

0:25:02.000 --> 0:25:05.720
<v Speaker 3>called non scarring alopecia, So in various patches you might

0:25:05.760 --> 0:25:09.040
<v Speaker 3>have hair loss or sometimes kind of diffusely see that

0:25:09.080 --> 0:25:11.720
<v Speaker 3>people are kind of losing a lot of hair that

0:25:11.840 --> 0:25:15.600
<v Speaker 3>eventually we'll grow back. It's not causing scarring across the skin.

0:25:16.680 --> 0:25:18.960
<v Speaker 2>And so any one of these things that you've mentioned

0:25:19.000 --> 0:25:21.240
<v Speaker 2>so far, because I know you're not done. I know

0:25:21.400 --> 0:25:26.160
<v Speaker 2>happen sequentially or at the same time, or you see

0:25:26.200 --> 0:25:29.520
<v Speaker 2>one and not the other. It's just a complete mixed bag.

0:25:29.760 --> 0:25:31.800
<v Speaker 2>It's a complete mixed bag. And I'm not even close

0:25:31.840 --> 0:25:32.920
<v Speaker 2>to done if you do.

0:25:35.320 --> 0:25:39.600
<v Speaker 3>Fever is another really common manifestation or something that we

0:25:39.680 --> 0:25:42.919
<v Speaker 3>see a lot. About thirty one percent of people with

0:25:43.040 --> 0:25:46.719
<v Speaker 3>lupus will have fevers at some point with a flare

0:25:46.880 --> 0:25:50.600
<v Speaker 3>or maybe like the first time that they're diagnosed. We

0:25:50.720 --> 0:25:55.439
<v Speaker 3>also can see various forms of saracitis, which are generalized

0:25:55.480 --> 0:26:00.919
<v Speaker 3>inflammation of our sorrosal membrane. So this means the layers

0:26:00.960 --> 0:26:04.480
<v Speaker 3>in our body that are like between organs, so say

0:26:04.560 --> 0:26:10.080
<v Speaker 3>the plura, the lining of your lungs or the pericardium,

0:26:10.160 --> 0:26:14.000
<v Speaker 3>the lining of your heart, or even the lining of

0:26:14.040 --> 0:26:17.119
<v Speaker 3>your abdomen, though that's a little bit less common. So

0:26:17.160 --> 0:26:19.440
<v Speaker 3>what this is going to cause, especially in the case

0:26:19.480 --> 0:26:22.080
<v Speaker 3>of inflammation in the lining of the heart or the

0:26:22.119 --> 0:26:26.520
<v Speaker 3>lining of the lungs, is incredible chest pain, especially what's

0:26:26.520 --> 0:26:29.000
<v Speaker 3>called pluritic chest pain. This pain that gets a lot

0:26:29.040 --> 0:26:32.159
<v Speaker 3>worse if you try and take a deep breath, because

0:26:32.160 --> 0:26:35.120
<v Speaker 3>that's stretching these linings and causing a lot of pain

0:26:35.160 --> 0:26:39.359
<v Speaker 3>because of all of that inflammation. That sounds horrible, I know,

0:26:39.560 --> 0:26:43.720
<v Speaker 3>it's really awful. There's a lot more. Lupus can also

0:26:43.760 --> 0:26:47.520
<v Speaker 3>affect the nervous system, so it can cause neurologic symptoms,

0:26:47.640 --> 0:26:52.359
<v Speaker 3>and these can vary incredibly widely because it's not just

0:26:52.560 --> 0:26:56.040
<v Speaker 3>affecting one particular part of the nervous system or another.

0:26:56.760 --> 0:27:01.280
<v Speaker 3>So it could mean things like seizures, could mean things

0:27:01.400 --> 0:27:05.920
<v Speaker 3>like neuropathies, or having various kind of numbness or tinglings,

0:27:06.040 --> 0:27:10.399
<v Speaker 3>or like unusual sensations because of nerve damage. It could

0:27:10.440 --> 0:27:17.480
<v Speaker 3>mean cognitive dysfunction, severe fatigue, brain fog. Lupus also has

0:27:17.560 --> 0:27:23.080
<v Speaker 3>a significantly increased risk for stroke as well as cardiovascular disease.

0:27:23.280 --> 0:27:27.760
<v Speaker 3>In general, people living with lupus have a twofold increased

0:27:27.840 --> 0:27:31.520
<v Speaker 3>risk for cardiovascular disease and an increased risk of high

0:27:31.560 --> 0:27:37.000
<v Speaker 3>blood pressure. One of the other biggest and most important

0:27:37.040 --> 0:27:40.960
<v Speaker 3>in terms of morbidity and mortality signs or symptoms of

0:27:41.000 --> 0:27:44.800
<v Speaker 3>loopus is what's called lupis nephritis, and this is what

0:27:44.840 --> 0:27:50.520
<v Speaker 3>happens when lupus affects the kidneys. This happens to most

0:27:50.760 --> 0:27:53.760
<v Speaker 3>papers that I read estimated more than half of people

0:27:53.760 --> 0:27:56.560
<v Speaker 3>with lupus, so about sixty percent of people with lupus

0:27:56.680 --> 0:27:59.920
<v Speaker 3>within a decade of their first diagnosis, although some papers

0:28:00.080 --> 0:28:03.919
<v Speaker 3>have slightly lower estimates. But the damage that lupus can

0:28:04.000 --> 0:28:08.720
<v Speaker 3>cause to the kidneys in particular is very significant. So

0:28:08.840 --> 0:28:12.760
<v Speaker 3>lupus nephritis can end up leading to end stage kidney disease,

0:28:13.000 --> 0:28:16.000
<v Speaker 3>which can result in somebody needing dialysis or even a

0:28:16.080 --> 0:28:19.639
<v Speaker 3>kidney transplant. It can also lead to a lot of

0:28:19.680 --> 0:28:22.879
<v Speaker 3>issues with blood pressure because your kidneys are really integral

0:28:22.960 --> 0:28:27.840
<v Speaker 3>in the maintenance of blood pressure. So with lupus nephritis,

0:28:28.000 --> 0:28:32.000
<v Speaker 3>the main way that this is confirmed to be inflammation

0:28:32.080 --> 0:28:34.399
<v Speaker 3>and damage to the kidneys caused by lupus and not

0:28:34.480 --> 0:28:36.719
<v Speaker 3>anything else, which is a question that you asked earlier.

0:28:36.760 --> 0:28:42.440
<v Speaker 3>Aaron is by biopsy, kidney biopsy, and that is something

0:28:42.440 --> 0:28:44.719
<v Speaker 3>that we can do in several of these other cases

0:28:44.720 --> 0:28:47.680
<v Speaker 3>as well. For example, a lot of the skin manifestations,

0:28:47.840 --> 0:28:51.760
<v Speaker 3>we can take a biopsy and look for specific histological

0:28:52.320 --> 0:28:59.160
<v Speaker 3>findings that are associated with lupus. That's not true for everything,

0:28:59.280 --> 0:29:02.800
<v Speaker 3>in part because we don't want to biopsy, you know,

0:29:02.960 --> 0:29:06.360
<v Speaker 3>your heart if we don't absolutely have to, et cetera.

0:29:07.840 --> 0:29:10.440
<v Speaker 3>But when we have some of these findings, we can

0:29:10.520 --> 0:29:12.960
<v Speaker 3>do biopsies and that can tell us a lot about

0:29:13.520 --> 0:29:17.400
<v Speaker 3>whether this is lupus or something different. In terms of

0:29:17.440 --> 0:29:20.760
<v Speaker 3>what the symptoms might be with someone with lupus nephritis,

0:29:21.040 --> 0:29:24.480
<v Speaker 3>what we usually see is protein in the urine or

0:29:24.560 --> 0:29:28.240
<v Speaker 3>sometimes just small amounts of blood or white blood cells

0:29:28.240 --> 0:29:31.560
<v Speaker 3>that are just continuously there in the urine, and then

0:29:31.680 --> 0:29:35.160
<v Speaker 3>other lab findings that are just suggesting general kidney damage.

0:29:35.480 --> 0:29:38.720
<v Speaker 3>But the biopsy is really pretty important to actually look

0:29:38.760 --> 0:29:42.360
<v Speaker 3>at the vessels and see the type of damage that's specific.

0:29:41.920 --> 0:29:45.960
<v Speaker 2>To lupus and what type of damage is that. Yeah,

0:29:46.160 --> 0:29:49.680
<v Speaker 2>let's this is a really good question.

0:29:50.760 --> 0:29:55.600
<v Speaker 3>So that question, Aaron gets really into the nitty gritty

0:29:55.720 --> 0:30:00.840
<v Speaker 3>of the path of physiology of this disease. Right, So

0:30:00.960 --> 0:30:04.800
<v Speaker 3>if we zoom in and look at what is happening

0:30:05.360 --> 0:30:08.360
<v Speaker 3>in your body when you're living with lupus, how exactly

0:30:08.440 --> 0:30:11.400
<v Speaker 3>is this disease causing all of these different effects. We

0:30:11.480 --> 0:30:13.840
<v Speaker 3>do actually know at least a little bit of detail,

0:30:14.320 --> 0:30:16.120
<v Speaker 3>but it's still probably not going to be very satisfying

0:30:16.120 --> 0:30:20.680
<v Speaker 3>herein But the central mechanism of damage, like I mentioned

0:30:20.960 --> 0:30:23.520
<v Speaker 3>when I was just talking about autoimmune diseases in general,

0:30:23.760 --> 0:30:28.400
<v Speaker 3>is this autoantibody production. So in lupus, we're making these

0:30:28.440 --> 0:30:33.120
<v Speaker 3>antibodies that target our own cells or things and structures

0:30:33.160 --> 0:30:36.280
<v Speaker 3>within our own cells. In the case of lupus, it's

0:30:36.320 --> 0:30:41.040
<v Speaker 3>most often antibodies against the nucleus or against our DNA,

0:30:41.760 --> 0:30:45.240
<v Speaker 3>but there are a whole bunch of other specific antibodies

0:30:45.240 --> 0:30:48.960
<v Speaker 3>that can be associated with lupus as well. What happens

0:30:49.120 --> 0:30:54.400
<v Speaker 3>is that these autoantibodies are binding to stuff various things

0:30:54.520 --> 0:30:58.880
<v Speaker 3>our DNA, our nucleus, et cetera in our cells, and

0:30:58.920 --> 0:31:04.240
<v Speaker 3>then they're triggering inappropriate immune responses. So what we see

0:31:04.760 --> 0:31:09.200
<v Speaker 3>are increases in things like B cell activation, remember our

0:31:09.280 --> 0:31:13.440
<v Speaker 3>B cells, or what are making antibodies. We're seeing increases

0:31:13.560 --> 0:31:17.680
<v Speaker 3>in T cell activation as well, because our T cells

0:31:17.760 --> 0:31:22.400
<v Speaker 3>are what are activated often by our antibodies to start

0:31:22.520 --> 0:31:27.400
<v Speaker 3>reacting and blocking off or killing whatever pathogen they're supposed

0:31:27.440 --> 0:31:30.960
<v Speaker 3>to be defending against. And really we can see this

0:31:31.200 --> 0:31:36.200
<v Speaker 3>just generalized pattern of inflammation. The places in our body

0:31:36.360 --> 0:31:40.760
<v Speaker 3>that this inflammation often ends up causing damage very commonly

0:31:40.840 --> 0:31:46.000
<v Speaker 3>are in our blood vessels, but also in any possible

0:31:46.160 --> 0:31:49.480
<v Speaker 3>organ so in our joint space. I know your face

0:31:49.560 --> 0:31:52.440
<v Speaker 3>is so unsatisfied with this exploration.

0:31:52.120 --> 0:31:54.160
<v Speaker 2>Like in our blood vessels that I'm like, Okay, finally

0:31:54.160 --> 0:31:56.040
<v Speaker 2>we're getting down to some like a little bit more

0:31:56.040 --> 0:32:01.600
<v Speaker 2>specifics said, and any other organ it is, though, I

0:32:01.640 --> 0:32:03.040
<v Speaker 2>know it's reality.

0:32:03.760 --> 0:32:06.400
<v Speaker 3>So like in the case of serositis, then this is

0:32:06.480 --> 0:32:12.280
<v Speaker 3>inflammation caused by you know, auto antibodies and generalized white

0:32:12.320 --> 0:32:16.720
<v Speaker 3>blood cell and cytokine production and inflammation that's attacking the

0:32:16.800 --> 0:32:20.240
<v Speaker 3>lining specifically, right, so it's attacking our peracardial cells.

0:32:20.800 --> 0:32:21.000
<v Speaker 2>Right.

0:32:21.200 --> 0:32:25.000
<v Speaker 3>In the case of our kidneys, you have inflammation that's

0:32:25.040 --> 0:32:28.280
<v Speaker 3>attacking the tubules of the kidneys as well as the

0:32:28.320 --> 0:32:30.120
<v Speaker 3>blood vessels that lead into the kidneys.

0:32:30.480 --> 0:32:33.520
<v Speaker 2>But these are not this is not one cell type

0:32:33.920 --> 0:32:38.960
<v Speaker 2>or one target. There are different antibodies targeting different things

0:32:38.960 --> 0:32:43.520
<v Speaker 2>that can be involved. How is this one disease.

0:32:44.240 --> 0:32:47.800
<v Speaker 3>Such a good question, And it goes even further because

0:32:47.840 --> 0:32:50.800
<v Speaker 3>it's not just targeting cells, because the other thing that

0:32:50.800 --> 0:32:53.200
<v Speaker 3>can happen that's really important in lupus is that these

0:32:53.360 --> 0:32:59.400
<v Speaker 3>auto antibodies themselves can lead to what's called immune complex deposition.

0:33:00.360 --> 0:33:03.680
<v Speaker 3>You can think of this as clumps of our highly

0:33:03.720 --> 0:33:08.000
<v Speaker 3>active immune cells, as well as various debris and just

0:33:08.080 --> 0:33:12.840
<v Speaker 3>things that are in our body that ends up sticking

0:33:12.960 --> 0:33:15.960
<v Speaker 3>to the walls of stuff, sticking to the walls of

0:33:16.000 --> 0:33:19.040
<v Speaker 3>our blood vessels, sticking to the tubules of our kidneys,

0:33:19.280 --> 0:33:24.200
<v Speaker 3>getting deposited in our skin, getting deposited in our joints, right.

0:33:24.480 --> 0:33:27.440
<v Speaker 2>Out of the organs. Yeah.

0:33:27.520 --> 0:33:30.880
<v Speaker 3>I like that, except it's not crystals. It's just these

0:33:30.960 --> 0:33:32.479
<v Speaker 3>immune complexes slumps.

0:33:32.800 --> 0:33:33.600
<v Speaker 2>Yeah.

0:33:33.720 --> 0:33:38.760
<v Speaker 3>But these things are going to then cause even more inflammation,

0:33:39.160 --> 0:33:43.320
<v Speaker 3>right because they're going to just continue triggering our immune response.

0:33:43.880 --> 0:33:47.720
<v Speaker 3>And all of these things together, this generalized inflammation, the

0:33:47.760 --> 0:33:51.840
<v Speaker 3>immune complex deposition, the vasculitis, or the inflammation happening in

0:33:51.840 --> 0:33:54.640
<v Speaker 3>our blood vessels, all of these are causing damage to

0:33:54.760 --> 0:33:58.640
<v Speaker 3>whatever organ they're affecting at the time, And like I mentioned,

0:33:58.640 --> 0:34:04.000
<v Speaker 3>there are specific histological changes that we can see in

0:34:04.120 --> 0:34:08.440
<v Speaker 3>some kinds of cutaneous lupus, those skin manifestations, certainly in

0:34:08.560 --> 0:34:09.680
<v Speaker 3>kidney biopsies.

0:34:10.480 --> 0:34:11.080
<v Speaker 2>And I'm not.

0:34:11.040 --> 0:34:13.839
<v Speaker 3>Going to get into the detail of what those look

0:34:13.960 --> 0:34:16.759
<v Speaker 3>like because they're quite honestly, unless you're a histologist, like

0:34:16.800 --> 0:34:17.520
<v Speaker 3>they're very boring.

0:34:17.600 --> 0:34:21.239
<v Speaker 2>It's like this type of die bines blah blah blah.

0:34:21.239 --> 0:34:24.560
<v Speaker 2>All the histologists out there are like shaking their fists, like,

0:34:24.640 --> 0:34:26.120
<v Speaker 2>come on, these are almost.

0:34:25.800 --> 0:34:29.680
<v Speaker 3>Sorry, it's just because I'm bad at histology, that's the

0:34:29.719 --> 0:34:36.040
<v Speaker 3>real answer. But that that's kind of what's happening on

0:34:36.120 --> 0:34:39.360
<v Speaker 3>the inside. In as much detail as I can provide,

0:34:39.360 --> 0:34:41.920
<v Speaker 3>which I know is not is not a satisfying amount.

0:34:42.560 --> 0:34:45.040
<v Speaker 2>I guess I kind of have a question. I'm honestly

0:34:45.239 --> 0:34:48.400
<v Speaker 2>just so taking it all in that it's hard to

0:34:48.680 --> 0:34:51.840
<v Speaker 2>form questions, but I think I do have one, okay,

0:34:52.080 --> 0:34:55.840
<v Speaker 2>and that is, what are some other things that could

0:34:56.160 --> 0:35:00.640
<v Speaker 2>look like lupus or other things that lupus looks like

0:35:01.080 --> 0:35:02.560
<v Speaker 2>ooh oof.

0:35:02.680 --> 0:35:08.680
<v Speaker 3>Aaron, huh yeah, And like how do we even diagnose this?

0:35:08.920 --> 0:35:11.440
<v Speaker 2>Right? Like that's kind of getting at that question or

0:35:11.560 --> 0:35:15.200
<v Speaker 2>the boundaries that solid or are they permeable. They are,

0:35:15.520 --> 0:35:16.920
<v Speaker 2>they're not that solid.

0:35:18.480 --> 0:35:21.200
<v Speaker 3>How one actually gets diagnosed with lupus is a is

0:35:21.200 --> 0:35:25.120
<v Speaker 3>a very difficult question, and that's in part because, like

0:35:25.200 --> 0:35:27.359
<v Speaker 3>you kind of alluded to, there are a lot of

0:35:27.400 --> 0:35:31.239
<v Speaker 3>things that can look like lupus or that lupus can

0:35:31.360 --> 0:35:34.440
<v Speaker 3>look like. But let's kind of maybe go over some

0:35:34.600 --> 0:35:36.960
<v Speaker 3>of the things that might make it seem more like

0:35:37.080 --> 0:35:41.400
<v Speaker 3>lupus and less like, say, an infection, right, Because someone

0:35:41.480 --> 0:35:44.200
<v Speaker 3>might come in with a rash and a fever, and

0:35:44.239 --> 0:35:47.279
<v Speaker 3>that might be their initial presentation that might seem like

0:35:47.320 --> 0:35:50.880
<v Speaker 3>it's an infection. They might also have abnormalities in like

0:35:50.920 --> 0:35:53.080
<v Speaker 3>their blood cell counts, so we might say that they

0:35:53.120 --> 0:35:56.279
<v Speaker 3>have really high white blood cells and those things are

0:35:56.320 --> 0:35:59.239
<v Speaker 3>going to make you think that they have an infection initially, right,

0:35:59.840 --> 0:36:03.200
<v Speaker 3>Or or someone might come in with, you know, generalized

0:36:03.400 --> 0:36:05.919
<v Speaker 3>joint pain in a number of their joints. That could

0:36:05.960 --> 0:36:10.680
<v Speaker 3>be any number of different kinds of arthritis. Not necessarily

0:36:10.880 --> 0:36:12.680
<v Speaker 3>lupus is going to be the first thing that you

0:36:12.719 --> 0:36:16.560
<v Speaker 3>think of. So let's kind of see if we can

0:36:16.640 --> 0:36:21.239
<v Speaker 3>figure out some of it part of the diagnosis of

0:36:21.320 --> 0:36:26.160
<v Speaker 3>lupus that can be helpful is that about seventy percent

0:36:26.160 --> 0:36:30.440
<v Speaker 3>of people with lupus have a relapsing remitting course of disease.

0:36:31.080 --> 0:36:34.080
<v Speaker 3>So that means that they'll have flares of these symptoms

0:36:35.040 --> 0:36:39.520
<v Speaker 3>and then they'll have periods of remission. The issue is

0:36:39.600 --> 0:36:46.880
<v Speaker 3>that flares could be anyone or any combination of those symptoms,

0:36:47.520 --> 0:36:50.480
<v Speaker 3>and they might not be the same every time, and

0:36:50.520 --> 0:36:55.440
<v Speaker 3>so sometimes a flare might be if someone has arthritis,

0:36:55.480 --> 0:36:57.400
<v Speaker 3>they kind of kind of always have at least some

0:36:57.560 --> 0:37:01.439
<v Speaker 3>joint pain. A flare might be a worsening of those

0:37:01.520 --> 0:37:05.440
<v Speaker 3>chronic symptoms that might be a flare, or a flare

0:37:05.520 --> 0:37:08.200
<v Speaker 3>might be a brand new symptom, a new rash that

0:37:08.239 --> 0:37:12.279
<v Speaker 3>you've never had before, with no changes in maybe any

0:37:12.320 --> 0:37:14.799
<v Speaker 3>other symptoms that you may or may not have. So

0:37:15.400 --> 0:37:20.440
<v Speaker 3>there's no perfect way to diagnose lupus, and it often

0:37:20.480 --> 0:37:23.120
<v Speaker 3>takes a really long time to diagnose because of that.

0:37:23.600 --> 0:37:25.920
<v Speaker 2>I was just about to ask if we had numbers.

0:37:25.960 --> 0:37:29.160
<v Speaker 2>I remember the only other one where we've talked about this,

0:37:29.440 --> 0:37:32.520
<v Speaker 2>I think was endometriosis. Yeah, that's a good question.

0:37:32.560 --> 0:37:35.480
<v Speaker 3>I actually didn't see that, like time from initial symptoms

0:37:35.480 --> 0:37:38.400
<v Speaker 3>to diagnosis, I didn't see numbers on that, but I

0:37:38.400 --> 0:37:41.840
<v Speaker 3>would guess it's very long, and it's often many many

0:37:41.840 --> 0:37:45.799
<v Speaker 3>different doctors and specialists before somebody actually gets that diagnosis,

0:37:45.880 --> 0:37:49.359
<v Speaker 3>except in cases when someone presents with maybe very kind

0:37:49.400 --> 0:37:54.359
<v Speaker 3>of classic findings like lupus nephritis and a rash and

0:37:54.400 --> 0:37:57.680
<v Speaker 3>a fever with these specific blood findings, right, if it

0:37:57.760 --> 0:38:01.360
<v Speaker 3>kind of fits a very classic picture, be easier to diagnose,

0:38:01.719 --> 0:38:04.520
<v Speaker 3>But a lot of times it doesn't. But there do

0:38:04.680 --> 0:38:11.200
<v Speaker 3>exist classification criteria. The American College of Rheumatology and the

0:38:11.520 --> 0:38:14.920
<v Speaker 3>European League against Rheumatism, which I think has recently been

0:38:14.920 --> 0:38:18.839
<v Speaker 3>renamed the European Alliance of Associations for Rheumatology I don't

0:38:18.840 --> 0:38:25.000
<v Speaker 3>know anyways, have classification criteria that they updated in twenty nineteen.

0:38:26.440 --> 0:38:30.120
<v Speaker 2>And in general, to meet.

0:38:29.920 --> 0:38:33.880
<v Speaker 3>Criteria for this classification, you have to have a combination

0:38:34.160 --> 0:38:38.000
<v Speaker 3>of symptoms. Right, some of these clinical criteria, it could

0:38:38.040 --> 0:38:42.280
<v Speaker 3>be any various combination, And there's kind of different points

0:38:42.320 --> 0:38:45.640
<v Speaker 3>for different symptoms that are more likely associated with lupus

0:38:45.719 --> 0:38:49.480
<v Speaker 3>versus less likely. Because I did not go over all

0:38:49.600 --> 0:38:53.799
<v Speaker 3>of the possible symptoms, there are more. Then there are

0:38:53.840 --> 0:38:58.160
<v Speaker 3>also immunologic criteria, so specific lab findings that may or

0:38:58.160 --> 0:39:00.400
<v Speaker 3>may not be present and give you kind of points

0:39:00.440 --> 0:39:01.560
<v Speaker 3>on this scale as well.

0:39:02.160 --> 0:39:07.280
<v Speaker 2>Does duration matter duration of of like a symptom during

0:39:07.320 --> 0:39:08.000
<v Speaker 2>a flare up?

0:39:08.520 --> 0:39:13.200
<v Speaker 3>Good question, Not in this particular classification scheme that I

0:39:13.239 --> 0:39:18.280
<v Speaker 3>know of, Okay, Yeah, but certainly like history of past

0:39:18.520 --> 0:39:21.680
<v Speaker 3>flares is going to be a really important thing that

0:39:21.840 --> 0:39:24.879
<v Speaker 3>also isn't necessarily like a point scale, but is going

0:39:24.920 --> 0:39:27.800
<v Speaker 3>to make someone be more suspicious that it is lupus

0:39:27.880 --> 0:39:31.040
<v Speaker 3>versus something else if they've had similar episodes in the past.

0:39:31.200 --> 0:39:33.640
<v Speaker 2>Okay.

0:39:33.680 --> 0:39:36.680
<v Speaker 3>One of the most important lab findings that in this

0:39:36.800 --> 0:39:40.839
<v Speaker 3>classification criteria is the gateway to be able to even

0:39:40.880 --> 0:39:44.959
<v Speaker 3>get a classification of lupus to begin with, is called

0:39:45.080 --> 0:39:51.520
<v Speaker 3>anti nuclear antibody. This is a very general antibody that's

0:39:51.560 --> 0:39:56.040
<v Speaker 3>directed against the nucleus. Some studies say it's present in

0:39:56.120 --> 0:39:59.480
<v Speaker 3>like ninety five to ninety nine point five percent of

0:39:59.520 --> 0:40:04.080
<v Speaker 3>people with lupus, so it's considered very sensitive, although it

0:40:04.160 --> 0:40:08.520
<v Speaker 3>can be negative even in people with lupus, especially if

0:40:08.520 --> 0:40:14.640
<v Speaker 3>it's very well controlled lupus. But anti nuclear antibodies ANA

0:40:14.680 --> 0:40:17.640
<v Speaker 3>are also present in like fifteen percent of people without

0:40:17.719 --> 0:40:21.279
<v Speaker 3>lupus or any other autoimmune disease, as well as in

0:40:21.360 --> 0:40:24.120
<v Speaker 3>plenty of people with other autoimmune diseases, so it's not

0:40:24.200 --> 0:40:28.839
<v Speaker 3>a specific antibody. So then beyond that one, there are

0:40:28.840 --> 0:40:33.080
<v Speaker 3>also a number of other autoantibodies that do tend to

0:40:33.120 --> 0:40:36.719
<v Speaker 3>be more specific that we usually only see in loopus,

0:40:37.440 --> 0:40:40.799
<v Speaker 3>but they're not always present in loopus.

0:40:41.560 --> 0:40:44.080
<v Speaker 2>I mean, I know erin I know.

0:40:45.280 --> 0:40:51.759
<v Speaker 3>Yeah, So it's unsurprising that it's difficult to diagnose, incredibly

0:40:51.800 --> 0:40:55.120
<v Speaker 3>frustrating if you're just living with joint pain, if you're

0:40:55.160 --> 0:40:57.960
<v Speaker 3>living with chronic fatigue, if you're living with all of

0:40:58.000 --> 0:41:03.480
<v Speaker 3>these symptoms that you don't have an answer for yet, right, Yeah,

0:41:03.719 --> 0:41:06.080
<v Speaker 3>So I guess the next question that I wanted to

0:41:06.840 --> 0:41:10.879
<v Speaker 3>try and answer is like what causes this?

0:41:11.480 --> 0:41:14.440
<v Speaker 2>Not on the you know, cellular.

0:41:14.160 --> 0:41:17.640
<v Speaker 3>Level, but like on the big picture level, what do

0:41:17.680 --> 0:41:20.239
<v Speaker 3>we know about the risk factors and all of that.

0:41:22.040 --> 0:41:26.400
<v Speaker 3>We know that there is absolutely a huge amount of genetic.

0:41:26.000 --> 0:41:27.840
<v Speaker 2>Basis to loopus.

0:41:28.160 --> 0:41:32.359
<v Speaker 3>There is an increased in frequency in twin studies, there's

0:41:32.400 --> 0:41:39.000
<v Speaker 3>an increased risk in siblings. But it's definitely a polygenic risk.

0:41:39.200 --> 0:41:42.839
<v Speaker 3>There are dozens or more different genes that have been

0:41:42.920 --> 0:41:49.400
<v Speaker 3>identified to contribute to increased risk of loopus, and in

0:41:49.480 --> 0:41:53.160
<v Speaker 3>some rare cases there have been like monogenic so like

0:41:53.280 --> 0:41:56.600
<v Speaker 3>one gene susceptibility, but a lot of times what we

0:41:56.640 --> 0:42:00.360
<v Speaker 3>see is that it actually is multiple genes, multiple genetic

0:42:00.480 --> 0:42:04.720
<v Speaker 3>changes that are necessary prior to resulting in loopus.

0:42:04.719 --> 0:42:08.040
<v Speaker 2>If that makes sense. What do these genes do? Are

0:42:08.120 --> 0:42:10.319
<v Speaker 2>they all doing the same thing or are they doing

0:42:10.400 --> 0:42:11.640
<v Speaker 2>a lot of different things?

0:42:12.040 --> 0:42:14.719
<v Speaker 3>Great question, there's a lot. So they are doing a

0:42:14.719 --> 0:42:17.520
<v Speaker 3>lot of different things. But in general they're all related

0:42:17.520 --> 0:42:20.280
<v Speaker 3>to our immune response. So a lot of the genes

0:42:20.280 --> 0:42:25.040
<v Speaker 3>that we've identified are related to our major histocompatibility complexes

0:42:25.760 --> 0:42:30.359
<v Speaker 3>or various human leukocyte antigen changes or polymorphisms. So we

0:42:30.440 --> 0:42:34.239
<v Speaker 3>see these all kind of being related to the propensity

0:42:34.360 --> 0:42:40.440
<v Speaker 3>to develop auto antibodies and like immune system regulation for

0:42:40.480 --> 0:42:41.000
<v Speaker 3>the most.

0:42:40.840 --> 0:42:48.799
<v Speaker 2>Part, Aaron, do other mammals get lupus? I don't know.

0:42:49.120 --> 0:42:51.160
<v Speaker 2>Should we do a quick google? Yeah, let's do a

0:42:51.200 --> 0:42:56.760
<v Speaker 2>quick goog. Yes, that was a very quick goog.

0:42:57.880 --> 0:43:03.920
<v Speaker 3>Well, like first line sees various animals such as cats, rats, dogs, hamsters,

0:43:03.920 --> 0:43:07.239
<v Speaker 3>guinea pigs, rabbits, horses, minx pigs, and primates have been

0:43:07.239 --> 0:43:10.400
<v Speaker 3>described lupus like phenotype. So I don't know if it's

0:43:10.440 --> 0:43:11.160
<v Speaker 3>exactly the same.

0:43:11.400 --> 0:43:16.439
<v Speaker 2>So interesting, what unites every one of these What is.

0:43:18.400 --> 0:43:22.759
<v Speaker 3>Our immune systems? I guess I mean yeah, but ugh,

0:43:23.680 --> 0:43:26.040
<v Speaker 3>I will I'll post this paper that I've found real quick.

0:43:26.440 --> 0:43:34.040
<v Speaker 3>Obviously haven't read it, but looks interesting. Back to genes, Yeah,

0:43:34.120 --> 0:43:37.640
<v Speaker 3>back to genes or rather other things that we can

0:43:37.680 --> 0:43:40.920
<v Speaker 3>get into about the kind of causes of lupus or

0:43:41.000 --> 0:43:44.440
<v Speaker 3>risks for lupus. There is also some good evidence that

0:43:44.480 --> 0:43:50.319
<v Speaker 3>there are associations with lupus and estrogen and testosterone metabolism.

0:43:50.440 --> 0:43:53.240
<v Speaker 3>Testosterone to a lesser extent, estrogen to a larger extent,

0:43:54.160 --> 0:43:56.200
<v Speaker 3>so some of the evidence that we have for this.

0:43:57.000 --> 0:44:03.640
<v Speaker 3>In general, lupus is significantly more prevalent in females. Ninety

0:44:03.680 --> 0:44:07.320
<v Speaker 3>percent of people who get diagnosed with lupus are assigned

0:44:07.320 --> 0:44:13.200
<v Speaker 3>female at birth. And also people with Kleinfelter syndrome, which

0:44:13.239 --> 0:44:16.360
<v Speaker 3>is a genetic condition where someone is born with forty

0:44:16.400 --> 0:44:22.759
<v Speaker 3>seven xxy chromosomes so an extra X chromosome have an

0:44:22.920 --> 0:44:28.120
<v Speaker 3>increased risk for lupus, and people who are born with

0:44:28.160 --> 0:44:31.360
<v Speaker 3>Turner syndrome, which we covered last season, who are We

0:44:31.480 --> 0:44:33.719
<v Speaker 3>talked about it a lot of different possible phenotypes, but

0:44:33.800 --> 0:44:38.440
<v Speaker 3>in general, missing one X chromosome have a lower risk for.

0:44:38.480 --> 0:44:42.040
<v Speaker 2>Lupus, So it's definitely got to be some sort of

0:44:42.120 --> 0:44:45.520
<v Speaker 2>a dose thing with the X chromosome and estrogen.

0:44:45.320 --> 0:44:48.000
<v Speaker 3>Right, So there's a lot of evidence that there must

0:44:48.080 --> 0:44:51.279
<v Speaker 3>be at least some degree of kind of X linkage,

0:44:51.360 --> 0:44:53.759
<v Speaker 3>that is that a lot of these genes that may

0:44:53.800 --> 0:44:59.440
<v Speaker 3>be involved are located on the X chromosome, and or

0:45:00.120 --> 0:45:03.480
<v Speaker 3>having two copies rather than one copy of this X

0:45:03.560 --> 0:45:07.960
<v Speaker 3>chromosome somehow is part of this inherent risk. But again,

0:45:08.160 --> 0:45:12.080
<v Speaker 3>it's not sufficient to cause lupus because plenty of people

0:45:12.120 --> 0:45:17.000
<v Speaker 3>with multiple X chromosomes don't have lupis, so it's fascinating.

0:45:17.280 --> 0:45:21.360
<v Speaker 3>We also can see a risk specifically associated with estrogen,

0:45:21.840 --> 0:45:25.320
<v Speaker 3>where we see sometimes an increase in flares in people

0:45:25.320 --> 0:45:28.360
<v Speaker 3>that are taking exogenous estrogen things like birth control or

0:45:28.440 --> 0:45:31.840
<v Speaker 3>hormone replacement therapy. So there's some thought too that it

0:45:31.880 --> 0:45:36.960
<v Speaker 3>could be alterations in either estrogen metabolism or the hypothalamic

0:45:36.960 --> 0:45:41.120
<v Speaker 3>pituitary axis, which is the axis between our brain and

0:45:41.440 --> 0:45:46.120
<v Speaker 3>our gonads that kind of regulates sex hormone production in general.

0:45:47.080 --> 0:45:51.319
<v Speaker 3>So there's a lot of potential genetic components that we

0:45:51.360 --> 0:45:54.239
<v Speaker 3>don't fully understand but we know are really fascinating and

0:45:54.280 --> 0:45:58.880
<v Speaker 3>interesting and need for their research, but there are also

0:45:59.600 --> 0:46:03.040
<v Speaker 3>likely a lot of environmental factors that work in combination

0:46:03.560 --> 0:46:06.760
<v Speaker 3>to then produce the disease that we know of as lupus.

0:46:08.160 --> 0:46:12.720
<v Speaker 3>When it comes to environmental factors, we don't have one. Course,

0:46:13.239 --> 0:46:15.359
<v Speaker 3>in our MS episode, we spent a lot of time

0:46:15.400 --> 0:46:18.520
<v Speaker 3>talking about EBV infection in the context of trying to

0:46:18.600 --> 0:46:22.440
<v Speaker 3>identify like the one environmental thing, the one exposure that

0:46:22.560 --> 0:46:28.360
<v Speaker 3>might result in MS. Unsurprisingly, for a disease as heterogeneous

0:46:28.880 --> 0:46:32.960
<v Speaker 3>as lupus, we don't have one, and I don't know

0:46:32.960 --> 0:46:34.320
<v Speaker 3>that we'll ever have just one.

0:46:35.480 --> 0:46:36.359
<v Speaker 2>A few things that.

0:46:36.320 --> 0:46:40.000
<v Speaker 3>We know are associated with either flares or with lupus

0:46:40.000 --> 0:46:43.560
<v Speaker 3>diagnosis in general are UV light, So exposure to the

0:46:43.600 --> 0:46:47.719
<v Speaker 3>sun is strongly associated with both the onset of symptoms

0:46:48.080 --> 0:46:51.800
<v Speaker 3>as well as with flares. There's some thought because I

0:46:51.800 --> 0:46:53.560
<v Speaker 3>can see your face being like what why?

0:46:53.680 --> 0:46:57.879
<v Speaker 2>Hell? Well? Also, wasn't that the opposite with MS there

0:46:57.920 --> 0:47:01.440
<v Speaker 2>was a latitudinal gradient. There was a latitude in no ingradient.

0:47:01.480 --> 0:47:02.319
<v Speaker 2>That's fascinating.

0:47:02.560 --> 0:47:06.239
<v Speaker 3>Yeah, But there's some thought that in the case of loopus,

0:47:06.280 --> 0:47:10.600
<v Speaker 3>it's the UV light damage to our skin cells because

0:47:10.640 --> 0:47:14.240
<v Speaker 3>there's a lot of skin manifestations in loopus that then

0:47:14.600 --> 0:47:18.360
<v Speaker 3>ends up causing like increased inflammation and increased antibody production.

0:47:19.360 --> 0:47:23.080
<v Speaker 3>That that's the kind of mechanism there. And then the

0:47:23.120 --> 0:47:25.920
<v Speaker 3>only other two things that have been associated with an

0:47:25.920 --> 0:47:28.880
<v Speaker 3>increased risk of loopus are smoking, so like cigarette or

0:47:28.880 --> 0:47:33.799
<v Speaker 3>tobacco smoking. And then, like I mentioned briefly, there are

0:47:33.960 --> 0:47:40.200
<v Speaker 3>a whole bunch of different medications in almost every medication class,

0:47:40.239 --> 0:47:45.080
<v Speaker 3>like anti arrhythmic medications, blood pressure medicines, anti tuberculosis medicines,

0:47:45.120 --> 0:47:48.440
<v Speaker 3>like over one hundred different medicines that can cause a

0:47:48.560 --> 0:47:53.920
<v Speaker 3>drug induced lupus, but that loopus generally doesn't lead to

0:47:54.080 --> 0:47:57.880
<v Speaker 3>systemic loopus aerythematosis what okay?

0:47:57.920 --> 0:48:01.560
<v Speaker 2>So, like I have a question about these other lupuses?

0:48:02.000 --> 0:48:05.320
<v Speaker 2>Uh huh? What makes them all loopus?

0:48:06.200 --> 0:48:09.400
<v Speaker 3>So we see similar antibody production, okay, and then we

0:48:09.440 --> 0:48:12.640
<v Speaker 3>see similar signs and symptoms oka and laboratory findings.

0:48:12.920 --> 0:48:15.879
<v Speaker 2>Yeah, for drug induced how does that happen? And how

0:48:15.920 --> 0:48:18.200
<v Speaker 2>long does that take or how long does it last?

0:48:18.520 --> 0:48:21.279
<v Speaker 3>It usually doesn't happen unless someone has been on a

0:48:21.320 --> 0:48:24.000
<v Speaker 3>medication for a pretty prolonged period of time. So it's

0:48:24.000 --> 0:48:27.719
<v Speaker 3>not like I started a med and then I got lupus,

0:48:27.760 --> 0:48:29.840
<v Speaker 3>like right, away. It's usually someone who's been on a

0:48:29.840 --> 0:48:32.360
<v Speaker 3>medicine for a very long time, months if not years,

0:48:33.239 --> 0:48:36.600
<v Speaker 3>and then it usually goes away within six months of

0:48:36.640 --> 0:48:40.480
<v Speaker 3>stopping the medication. So if someone, for example, comes in

0:48:40.520 --> 0:48:44.080
<v Speaker 3>with all of these symptoms that look a lot like lupus,

0:48:44.400 --> 0:48:46.120
<v Speaker 3>then one of the first things to do is look

0:48:46.160 --> 0:48:48.799
<v Speaker 3>through what medicines they're taking and say, is there any

0:48:48.840 --> 0:48:50.480
<v Speaker 3>way that this could have just been a drug induced

0:48:50.520 --> 0:48:54.600
<v Speaker 3>lupus versus you know, kind of true lupus or systemic loopus.

0:48:55.440 --> 0:48:59.200
<v Speaker 3>So if you see numbers for lupus in general, that

0:48:59.320 --> 0:49:03.120
<v Speaker 3>means systemic lupus arithematosis, Okay, drug induce lupus is always

0:49:03.120 --> 0:49:05.520
<v Speaker 3>going to be kind of separated out from that. I

0:49:05.560 --> 0:49:08.319
<v Speaker 3>don't have numbers on like how many cases of that

0:49:08.480 --> 0:49:12.040
<v Speaker 3>a year, et cetera. When it comes to cutaneous loopus,

0:49:12.560 --> 0:49:15.600
<v Speaker 3>about ten to twenty five percent of people who have

0:49:15.719 --> 0:49:19.640
<v Speaker 3>cutaneous loopus will then go on to develop systemic loopus,

0:49:19.680 --> 0:49:23.960
<v Speaker 3>so it's actually pretty small amount. But like I mentioned,

0:49:24.239 --> 0:49:27.440
<v Speaker 3>about seventy to eighty percent of people with systemic loopis

0:49:27.520 --> 0:49:31.600
<v Speaker 3>will have some kind of skin manifestation. Okay, and then

0:49:31.640 --> 0:49:33.319
<v Speaker 3>there's the last one that I hadn't even mentioned yet,

0:49:33.360 --> 0:49:37.319
<v Speaker 3>which is neonatal lupus. Yeah, and this happens due to

0:49:37.920 --> 0:49:41.560
<v Speaker 3>a few different types of antibodies, not every possible type

0:49:41.560 --> 0:49:45.480
<v Speaker 3>of lupus antibody, crossing the placenta during pregnancy and then

0:49:45.520 --> 0:49:49.400
<v Speaker 3>being present in the fetus. So once the baby is born,

0:49:49.920 --> 0:49:53.080
<v Speaker 3>those autoantibodies that are already present can lead to liver

0:49:53.200 --> 0:50:00.040
<v Speaker 3>problems or problems with their blood or platelet function That

0:50:00.080 --> 0:50:03.960
<v Speaker 3>tends to be transient and usually resolves within a few months,

0:50:04.040 --> 0:50:07.879
<v Speaker 3>as those autoantibodies are kind of just like getting out

0:50:07.920 --> 0:50:10.480
<v Speaker 3>of the system because remember that baby hasn't made those

0:50:10.480 --> 0:50:14.799
<v Speaker 3>antibodies themselves, they were passed through the placenta. However, the

0:50:14.880 --> 0:50:18.279
<v Speaker 3>most dangerous thing that neont loopus can result in is

0:50:18.400 --> 0:50:22.040
<v Speaker 3>complete heart block, which means that the electrical system of

0:50:22.080 --> 0:50:26.399
<v Speaker 3>their heart isn't working correctly. This is very very rare,

0:50:27.000 --> 0:50:30.680
<v Speaker 3>but does end up causing damage earlier to the point

0:50:30.719 --> 0:50:34.799
<v Speaker 3>where these babies often need pacemakers eventually. And I don't

0:50:34.840 --> 0:50:36.920
<v Speaker 3>have an exact number on how rare, but in general,

0:50:36.960 --> 0:50:42.200
<v Speaker 3>neonatal loopus is very rare. Though loopus in general can

0:50:42.239 --> 0:50:44.920
<v Speaker 3>have huge effects on pregnancy and can sometimes make it

0:50:45.040 --> 0:50:47.760
<v Speaker 3>very difficult to become pregnant or can result in recurrent

0:50:47.840 --> 0:50:50.040
<v Speaker 3>miscarriage and things like that as well.

0:50:51.080 --> 0:50:55.799
<v Speaker 2>What is the average age of onset for loopus symptoms?

0:50:56.160 --> 0:50:56.840
<v Speaker 2>Great question.

0:50:57.440 --> 0:51:01.439
<v Speaker 3>Fifteen to forty four, so reproduct of age and again

0:51:01.920 --> 0:51:06.279
<v Speaker 3>vastly more common in people assigned female at birth. So

0:51:06.320 --> 0:51:08.319
<v Speaker 3>that's kind of most of what I've got for the

0:51:08.320 --> 0:51:11.760
<v Speaker 3>biology erin. I don't know if that was long enough.

0:51:14.360 --> 0:51:17.160
<v Speaker 2>I mean, I have a feeling that you could double

0:51:17.239 --> 0:51:22.239
<v Speaker 2>the length and it would still be unsatisfying. Well, I

0:51:22.239 --> 0:51:24.640
<v Speaker 2>don't want to say unsatisfying, because I do feel like

0:51:24.719 --> 0:51:27.280
<v Speaker 2>I learned a lot and I have a clearer picture.

0:51:27.360 --> 0:51:30.880
<v Speaker 2>But the fault does not lie with you, with you

0:51:31.440 --> 0:51:34.880
<v Speaker 2>where we stand in lupus research today, which is also

0:51:35.160 --> 0:51:37.200
<v Speaker 2>a lot of people are doing great work, but it's

0:51:37.320 --> 0:51:41.560
<v Speaker 2>just a really challenging disease. It is, it really is.

0:51:43.560 --> 0:51:48.400
<v Speaker 3>I will briefly mention different forms of treatment. In general,

0:51:48.719 --> 0:51:52.759
<v Speaker 3>the mainstays of therapy for lupus are various forms of

0:51:52.760 --> 0:51:55.840
<v Speaker 3>immunosuppression in one form or another, and this is to

0:51:55.920 --> 0:52:00.480
<v Speaker 3>reduce both the incidents of flares as well as in

0:52:00.520 --> 0:52:04.080
<v Speaker 3>some cases the classification now is to get to a

0:52:04.120 --> 0:52:07.800
<v Speaker 3>low disease state where you just have a low amount

0:52:07.840 --> 0:52:11.360
<v Speaker 3>of kind of overall inflammation and damage that's being caused

0:52:11.400 --> 0:52:17.040
<v Speaker 3>because sometimes we can't induce complete remission of symptoms, right.

0:52:17.640 --> 0:52:20.960
<v Speaker 3>And there's a whole combination of medicines that are used,

0:52:21.000 --> 0:52:23.040
<v Speaker 3>and they have a number of different effects on the

0:52:23.040 --> 0:52:29.640
<v Speaker 3>immune system. Some like hydroxyd chloroquin actually don't just suppress

0:52:30.200 --> 0:52:34.439
<v Speaker 3>overall the immune system, but rather work on immunomodulation, which

0:52:34.440 --> 0:52:39.120
<v Speaker 3>is really interesting. Then there's things like mycophenolate or methotrexate,

0:52:39.200 --> 0:52:43.759
<v Speaker 3>which are generally causing immunosuppression. And then of course steroids

0:52:43.760 --> 0:52:50.279
<v Speaker 3>corticosteroids that are general anti inflammatories, very effective, but a

0:52:50.480 --> 0:52:55.200
<v Speaker 3>huge amount of side effects, and so in general these

0:52:55.200 --> 0:52:58.799
<v Speaker 3>are for flair suppression rather than like long term use.

0:53:00.800 --> 0:53:03.120
<v Speaker 3>And then there's a huge area of research that I'll

0:53:03.160 --> 0:53:08.400
<v Speaker 3>talk more about later into biologics, things like monoclonal antibodies

0:53:08.480 --> 0:53:12.040
<v Speaker 3>to treat autoimmune diseases in general and lupus in specific.

0:53:12.640 --> 0:53:15.759
<v Speaker 3>There is one that has been approved for lupus. It's

0:53:15.800 --> 0:53:22.640
<v Speaker 3>called belim mumab belimumab, and it targets B cells and

0:53:22.920 --> 0:53:24.279
<v Speaker 3>essentially just kills them.

0:53:24.440 --> 0:53:26.759
<v Speaker 2>And B cells are the ones that make antibodies.

0:53:27.560 --> 0:53:30.840
<v Speaker 3>So that's the only kind of specific biologic medication that

0:53:30.920 --> 0:53:32.719
<v Speaker 3>we have, though there are a couple others that are

0:53:32.760 --> 0:53:35.279
<v Speaker 3>sometimes used off label for lupus too.

0:53:40.600 --> 0:53:42.719
<v Speaker 2>It's a lot. I still feel like I wish I

0:53:42.800 --> 0:53:46.760
<v Speaker 2>knew so much more. I mean, I think everyone wishes

0:53:47.239 --> 0:53:48.759
<v Speaker 2>that everyone knew so much more.

0:53:50.120 --> 0:53:53.480
<v Speaker 3>Well, so tell me arin mm hmm. I mean we

0:53:53.600 --> 0:53:57.440
<v Speaker 3>know a lot considering we do, so how did we

0:53:57.480 --> 0:54:01.960
<v Speaker 3>get here? Where did this come from? And how did

0:54:01.960 --> 0:54:03.960
<v Speaker 3>we end up here where we're at right now twenty

0:54:03.960 --> 0:54:04.399
<v Speaker 3>twenty three?

0:54:04.600 --> 0:54:10.560
<v Speaker 2>Correct? Wow, Okay, no problem, A easy question. I'll get

0:54:10.719 --> 0:54:47.719
<v Speaker 2>right to it right after this break. The history of

0:54:47.800 --> 0:54:54.080
<v Speaker 2>lupus is largely a history of discovery of recognition, and

0:54:54.200 --> 0:54:57.799
<v Speaker 2>it's one that's far from over because we still don't

0:54:57.920 --> 0:55:01.160
<v Speaker 2>know precisely how lupus works, much less the ultimate cause,

0:55:01.280 --> 0:55:06.879
<v Speaker 2>as we you know, learned during the biology section, and

0:55:07.400 --> 0:55:10.160
<v Speaker 2>we do know a lot more now than we did

0:55:10.200 --> 0:55:12.960
<v Speaker 2>in the past. But I don't think that anyone familiar

0:55:12.960 --> 0:55:15.759
<v Speaker 2>with lupus, or anyone who just listened to the biology

0:55:15.800 --> 0:55:19.520
<v Speaker 2>section would say, Yep, you know, not much more to

0:55:19.600 --> 0:55:22.239
<v Speaker 2>do here. We've pretty much got it all figured out.

0:55:22.920 --> 0:55:26.440
<v Speaker 2>Can you imagine, I know, right, And so in the

0:55:26.520 --> 0:55:29.759
<v Speaker 2>history section, what I want to do is take us

0:55:29.760 --> 0:55:33.320
<v Speaker 2>through how we came to recognize and understand this disease

0:55:33.520 --> 0:55:36.640
<v Speaker 2>in a broad sense. But as I was putting my

0:55:36.719 --> 0:55:40.040
<v Speaker 2>notes together, I got to the part where a clinical

0:55:40.080 --> 0:55:45.240
<v Speaker 2>picture of systemic lupus arithematosis had been established through years

0:55:45.280 --> 0:55:49.399
<v Speaker 2>of descriptions and observations, and people had started to look

0:55:49.440 --> 0:55:53.120
<v Speaker 2>for the underlying cause of this autoimmune disease in terms

0:55:53.160 --> 0:55:57.840
<v Speaker 2>of the path of physiology and so on. And I realized, wait, like,

0:55:58.000 --> 0:56:01.440
<v Speaker 2>I'm taking a huge part of this history for granted,

0:56:02.520 --> 0:56:05.960
<v Speaker 2>when researchers began to search for what caused this disease

0:56:06.040 --> 0:56:08.960
<v Speaker 2>on a cellular level, they came to recognize that it

0:56:09.000 --> 0:56:12.960
<v Speaker 2>was an autoimmune disease. But how did that concept of

0:56:13.000 --> 0:56:16.920
<v Speaker 2>autoimmunity come to be? Oh gosh, I don't know, Eric,

0:56:18.440 --> 0:56:21.719
<v Speaker 2>How did people learn what the immune system was? And

0:56:21.840 --> 0:56:25.600
<v Speaker 2>when did they first notice that things maybe didn't always

0:56:25.680 --> 0:56:30.960
<v Speaker 2>go as planned. We've covered germ theory a thousand times

0:56:31.040 --> 0:56:34.440
<v Speaker 2>on the podcast, and that makes sense given that we

0:56:34.480 --> 0:56:39.440
<v Speaker 2>started out as an infectious disease only podcast. But I

0:56:39.480 --> 0:56:43.080
<v Speaker 2>can't remember, and I don't think that I have ever

0:56:43.160 --> 0:56:47.200
<v Speaker 2>talked at least at any great length about the immune

0:56:47.239 --> 0:56:52.240
<v Speaker 2>system or especially the growing study of autoimmune diseases. Definitely,

0:56:52.280 --> 0:56:56.800
<v Speaker 2>not maybe a little in like our vaccines episode, Yeah maybe,

0:56:57.000 --> 0:57:00.520
<v Speaker 2>but that's it, and not autoimmunity for sure. Yeah, And

0:57:00.560 --> 0:57:02.959
<v Speaker 2>I don't think I even talked about that in diabetes

0:57:03.360 --> 0:57:08.399
<v Speaker 2>or multiple sclerosis episodes. And so today what I want

0:57:08.400 --> 0:57:10.959
<v Speaker 2>to do is take us through this history of how

0:57:11.000 --> 0:57:15.719
<v Speaker 2>we filled in this concept of systemic lupus arithematosis as

0:57:15.760 --> 0:57:18.720
<v Speaker 2>we have it largely today. I mean, I probably won't

0:57:18.720 --> 0:57:21.960
<v Speaker 2>take us all the way through the twentieth century, but

0:57:22.080 --> 0:57:25.479
<v Speaker 2>then I also want to step back to ask how

0:57:25.520 --> 0:57:29.440
<v Speaker 2>we formed this concept of autoimmunity in the first place,

0:57:29.960 --> 0:57:32.720
<v Speaker 2>and then at the end I might sprinkle a bit

0:57:32.800 --> 0:57:38.320
<v Speaker 2>of evolutionary biology in the mix. Oh love it all right,

0:57:38.480 --> 0:57:43.000
<v Speaker 2>So let's get started. Some histories of lupus start with

0:57:43.080 --> 0:57:46.480
<v Speaker 2>a shout out to our main man, Hippocrates, or at

0:57:46.600 --> 0:57:48.960
<v Speaker 2>least the texts that bear his name, written around four

0:57:49.000 --> 0:57:53.960
<v Speaker 2>hundred BCE, suggesting that the description in these texts of

0:57:54.160 --> 0:58:01.160
<v Speaker 2>cutaneous ulcerations referred to as herpes estheomenos, points towards the

0:58:01.200 --> 0:58:06.440
<v Speaker 2>symptom of Lupuskay. Other histories appear to think that might

0:58:06.520 --> 0:58:08.800
<v Speaker 2>be a bit of a stretch, because they tend to

0:58:08.840 --> 0:58:12.920
<v Speaker 2>start in the tenth century CE, when Hebernus of Tours

0:58:13.120 --> 0:58:16.000
<v Speaker 2>use the word lupus to describe a particular disease for

0:58:16.040 --> 0:58:19.920
<v Speaker 2>the first time in his biography of Saint Martin, and

0:58:20.080 --> 0:58:24.160
<v Speaker 2>in this he describes how Saint Martin, who lived in

0:58:24.200 --> 0:58:27.240
<v Speaker 2>the fourth century CE, so like six hundred years before,

0:58:28.280 --> 0:58:31.760
<v Speaker 2>treated the Bishop of Liege who was suffering from a

0:58:31.800 --> 0:58:36.080
<v Speaker 2>disease thought to be the loopis we know today. So

0:58:36.320 --> 0:58:41.320
<v Speaker 2>that's like the first description. Okay, why the word lupus?

0:58:41.760 --> 0:58:44.880
<v Speaker 2>I was going to ask you that, Okay, okay, Well,

0:58:45.200 --> 0:58:51.200
<v Speaker 2>the word lupus comes from the Latin word for wolf, right, yeah,

0:58:51.320 --> 0:58:57.200
<v Speaker 2>question question over? Question answered? No, not at all. Well,

0:58:58.680 --> 0:59:02.919
<v Speaker 2>the question of why wolf was used for the name

0:59:02.960 --> 0:59:05.160
<v Speaker 2>of this disease is a little bit trickier to answer.

0:59:05.920 --> 0:59:09.680
<v Speaker 2>In general, there seemed to be two ideas for why

0:59:10.000 --> 0:59:13.880
<v Speaker 2>why lupus why wolf? One is that the facial rash

0:59:14.000 --> 0:59:20.000
<v Speaker 2>seen in some of these cases resembles a wolf like bite, oh, okay,

0:59:20.200 --> 0:59:23.680
<v Speaker 2>And the other is the wolf like way the rash

0:59:23.720 --> 0:59:26.760
<v Speaker 2>seems to gnaw away at the flesh of the person.

0:59:27.240 --> 0:59:32.120
<v Speaker 2>Oh gosh, that sounds awful. Yeah, But having not personally

0:59:32.120 --> 0:59:36.240
<v Speaker 2>witnessed what a wolf's bite looks like or felt the

0:59:36.280 --> 0:59:38.360
<v Speaker 2>gnawing of a wolf bite itself, I don't think I

0:59:38.360 --> 0:59:40.880
<v Speaker 2>can really say whether or not lupus is an accurate

0:59:40.920 --> 0:59:44.800
<v Speaker 2>word or an accurate match. But anyways, apparently the name

0:59:44.880 --> 0:59:47.160
<v Speaker 2>was catchy enough because it's still the one that we

0:59:47.320 --> 0:59:52.480
<v Speaker 2>use today, Although the lupus that was used historically, like

0:59:52.600 --> 0:59:55.960
<v Speaker 2>this person had lupus, or this rash was lupus or

0:59:56.000 --> 0:59:58.280
<v Speaker 2>something that, you know, we may look back at that

0:59:58.360 --> 1:00:01.320
<v Speaker 2>and go, Okay, that likely wasn't lupus.

1:00:00.960 --> 1:00:03.600
<v Speaker 3>Right that what they called lupus then, isn't necessarily what

1:00:03.600 --> 1:00:05.320
<v Speaker 3>we call lupus today exactly.

1:00:05.560 --> 1:00:10.440
<v Speaker 2>Yeah. Until almost the nineteenth century, the word lupus seemed

1:00:10.480 --> 1:00:13.640
<v Speaker 2>to be used to refer to ulcers and boils in

1:00:13.680 --> 1:00:17.760
<v Speaker 2>the lower extremities, whereas facial ulcers were called by the

1:00:17.840 --> 1:00:23.000
<v Speaker 2>term that Hippocrates used so herpes stheomenos, or a Latin

1:00:23.040 --> 1:00:29.400
<v Speaker 2>phrase which translated means touch me. Not interesting. Yeah. In

1:00:29.480 --> 1:00:32.960
<v Speaker 2>the late eighteenth and early nineteenth centuries, though, we begin

1:00:33.040 --> 1:00:37.440
<v Speaker 2>to see the definition of lupus change in seventeen ninety,

1:00:37.480 --> 1:00:40.960
<v Speaker 2>a British dermatologist named Robert Willen used the term to

1:00:41.040 --> 1:00:47.240
<v Speaker 2>describe any progressive, destructive lesions on the face or nose. Also,

1:00:47.400 --> 1:00:50.400
<v Speaker 2>I don't know why so many of the texts specified

1:00:50.440 --> 1:00:53.600
<v Speaker 2>face or nose, like, isn't the nose part of the face?

1:00:54.880 --> 1:00:58.400
<v Speaker 2>And I'm serious, that's a really good question.

1:00:58.440 --> 1:01:01.040
<v Speaker 3>I have no idea why. I mean, I don't think

1:01:01.040 --> 1:01:04.480
<v Speaker 3>I would separate it. What do they mean by face?

1:01:04.880 --> 1:01:07.240
<v Speaker 2>I don't know. Is your forehead part of your face?

1:01:07.840 --> 1:01:10.960
<v Speaker 2>I mean I would say yes, but according to these people,

1:01:11.000 --> 1:01:18.160
<v Speaker 2>who knows anyway. A few decades after this we get

1:01:18.160 --> 1:01:24.160
<v Speaker 2>the first clear description of lupus arithmatosis by Laurent Theodor Biet,

1:01:24.480 --> 1:01:28.680
<v Speaker 2>under the term arithema centrifugum. But it was one of

1:01:28.680 --> 1:01:34.120
<v Speaker 2>Biet's students, Pierre Kazanov, that coined the term lupus arithematosis

1:01:34.320 --> 1:01:38.800
<v Speaker 2>in eighteen thirty three. He described it as quote a

1:01:38.920 --> 1:01:42.800
<v Speaker 2>rare condition which appears most frequently in young females who

1:01:42.800 --> 1:01:47.640
<v Speaker 2>are otherwise healthy. Attacking the face, chiefly, round red patches

1:01:47.760 --> 1:01:51.480
<v Speaker 2>slightly elevated about the size of a shilling, gradually increase

1:01:51.520 --> 1:01:54.160
<v Speaker 2>in size and sometimes spread over the greater part of

1:01:54.200 --> 1:01:57.520
<v Speaker 2>the face. The edges of the patches are prominent, and

1:01:57.560 --> 1:02:01.800
<v Speaker 2>the center, which retains its natural color, is depressed. There

1:02:01.840 --> 1:02:04.880
<v Speaker 2>is heat and redness, but no pain or itching. It

1:02:04.960 --> 1:02:09.200
<v Speaker 2>is essentially a chronic affliction, though its appearance would indicate otherwise.

1:02:10.360 --> 1:02:13.880
<v Speaker 2>Seems to refer to discoid lupus, at least according to

1:02:13.920 --> 1:02:18.200
<v Speaker 2>the paper I read, Yeah, potentially in terms of ideology. Remember,

1:02:18.320 --> 1:02:21.040
<v Speaker 2>this is a time when the humoral theory of disease

1:02:21.360 --> 1:02:25.120
<v Speaker 2>still ruled, and disease was thought to be as much

1:02:25.200 --> 1:02:29.480
<v Speaker 2>about the disposition of the individual person as it was

1:02:29.520 --> 1:02:35.120
<v Speaker 2>about an actual physiological process. So Kazanov thought that especially

1:02:35.360 --> 1:02:40.240
<v Speaker 2>quote young soft women lacking energy and vitality with poor

1:02:40.320 --> 1:02:45.160
<v Speaker 2>capillary circulation were especially prone to lupus arithematosis end quote.

1:02:45.360 --> 1:02:50.040
<v Speaker 2>I know an issue, Okay, I mean, what did you expect?

1:02:50.120 --> 1:02:55.200
<v Speaker 2>It was the eighteen hundreds, Like yeah, Kazanov, Biet and

1:02:55.400 --> 1:02:59.520
<v Speaker 2>another of Biet's students, Henry Schadel, suggested that lupus should

1:02:59.520 --> 1:03:03.720
<v Speaker 2>be divided into three different classes of severity. Number one

1:03:04.000 --> 1:03:06.840
<v Speaker 2>lupus that only destroys the top layers of the skin.

1:03:07.440 --> 1:03:11.240
<v Speaker 2>Number two lupus that destroys deeper layers and number three

1:03:11.520 --> 1:03:17.000
<v Speaker 2>lupus with hypertrophy. A few decades later, Ferdinand von Hebra,

1:03:17.320 --> 1:03:20.560
<v Speaker 2>a physician from Vienna, described two different types of rash

1:03:20.560 --> 1:03:25.640
<v Speaker 2>patterns seen with lupus arithematosis. He described a disc like

1:03:25.800 --> 1:03:29.959
<v Speaker 2>rash and a rash made up of confluent, smaller regions.

1:03:30.440 --> 1:03:32.880
<v Speaker 2>He was also the first to note that the distribution

1:03:33.040 --> 1:03:38.600
<v Speaker 2>of the facial rash resembled a butterfly ooh. Later another

1:03:38.640 --> 1:03:41.439
<v Speaker 2>researcher called it batwing form. If you like that one

1:03:41.440 --> 1:03:46.760
<v Speaker 2>more so up to you. A side note, I loved

1:03:46.800 --> 1:03:50.360
<v Speaker 2>this fun fact. Hebra, the s guy that discovered it.

1:03:50.400 --> 1:03:54.600
<v Speaker 2>His coat of arms contains an elephant, two fish, a

1:03:54.640 --> 1:03:58.600
<v Speaker 2>red wolf, and a pen, each of which represents his

1:03:58.720 --> 1:04:05.400
<v Speaker 2>work on elephant tieis ichthyosis for the fish, lupus arithematosis

1:04:05.440 --> 1:04:08.760
<v Speaker 2>with the wolf, and his skills as a medical author.

1:04:09.640 --> 1:04:13.760
<v Speaker 2>How cute is that? I love that? I know? Anyway.

1:04:14.520 --> 1:04:17.760
<v Speaker 2>The first half or so of the eighteen hundreds mostly

1:04:17.800 --> 1:04:22.200
<v Speaker 2>involved researchers more thoroughly describing the lesions and ulcers that

1:04:22.240 --> 1:04:27.320
<v Speaker 2>were involved in lupus arithematosis, and also demonstrating that they

1:04:27.360 --> 1:04:31.200
<v Speaker 2>were not caused by tuberculosis. Or syphilis, which was a

1:04:31.360 --> 1:04:34.720
<v Speaker 2>very popular belief at the time and also one that

1:04:34.840 --> 1:04:38.640
<v Speaker 2>continued to be debated. Where is The later part of

1:04:38.760 --> 1:04:42.600
<v Speaker 2>the eighteen hundreds shone a light on the systemic nature

1:04:42.720 --> 1:04:46.360
<v Speaker 2>that could be present with this disease, and this was

1:04:46.440 --> 1:04:51.480
<v Speaker 2>largely done by Moritz Caposi. Yes, that Caposi, that Cauposi.

1:04:51.640 --> 1:04:55.720
<v Speaker 2>Okay of Caposi, sarcote, I guess we should specify. Yeah, yeah,

1:04:56.480 --> 1:05:00.920
<v Speaker 2>he also he was Hebra's son in law. What I know,

1:05:02.280 --> 1:05:07.440
<v Speaker 2>isn't that wild? I love it? Anyway. Capose noted that quote,

1:05:07.760 --> 1:05:11.920
<v Speaker 2>experience has shown that lupus arithematosis may be attended by

1:05:12.000 --> 1:05:18.080
<v Speaker 2>altogether more severe pathological changes, and even dangerous constitutional symptoms

1:05:18.200 --> 1:05:21.480
<v Speaker 2>may be intimately associated with the process in question, and

1:05:21.560 --> 1:05:25.640
<v Speaker 2>that death may result from conditions which must be considered

1:05:25.680 --> 1:05:29.600
<v Speaker 2>to rise from the local malady end quote. All right,

1:05:29.960 --> 1:05:33.200
<v Speaker 2>there you go. So it's just so interesting to me,

1:05:33.240 --> 1:05:38.520
<v Speaker 2>Aaron that this, Yeah, yeah, it's interesting sort of the progression,

1:05:39.120 --> 1:05:45.160
<v Speaker 2>the sequence of the progression of knowledge, because Capose, I think,

1:05:45.320 --> 1:05:47.360
<v Speaker 2>may have been the first one to point out some

1:05:47.400 --> 1:05:52.800
<v Speaker 2>of these constitutional symptoms like nodules, adnitis, fever, weight loss,

1:05:52.960 --> 1:05:57.520
<v Speaker 2>and the arthritis symptoms that often happened. He also differentiated

1:05:57.600 --> 1:06:03.560
<v Speaker 2>discoid lupus from disseminated lupus after Caposi's description of systemic

1:06:03.640 --> 1:06:08.960
<v Speaker 2>lupus arithematosis. Other physicians like William Osler, whom I know

1:06:09.040 --> 1:06:12.040
<v Speaker 2>that we've mentioned before. He's kind of a big deal

1:06:12.200 --> 1:06:15.000
<v Speaker 2>in the history of medicine in the US, sort of

1:06:15.040 --> 1:06:17.240
<v Speaker 2>like one of the quote unquote founding fathers of Johns

1:06:17.240 --> 1:06:18.880
<v Speaker 2>Hopkins Medical School.

1:06:19.160 --> 1:06:23.000
<v Speaker 3>Yeah, we've definitely talked about him, but I can't remember why.

1:06:23.360 --> 1:06:24.960
<v Speaker 2>I can't either, and I meant to look it up

1:06:24.960 --> 1:06:28.080
<v Speaker 2>and I forgot. He's done a lot though, and he's

1:06:28.120 --> 1:06:31.040
<v Speaker 2>done a lot. Yeah. He basically he was one of

1:06:31.040 --> 1:06:34.560
<v Speaker 2>the people that majorly changed the medical training requirements in

1:06:34.600 --> 1:06:37.680
<v Speaker 2>the early twentieth century. And there's probably a lot that

1:06:37.680 --> 1:06:40.480
<v Speaker 2>we could talk about in terms of that, but anyway,

1:06:40.640 --> 1:06:46.760
<v Speaker 2>be a whole episode. Yeah, post residency please. Yeah. So,

1:06:46.920 --> 1:06:50.400
<v Speaker 2>Ostler and other physicians began observing cases of the disease

1:06:50.480 --> 1:06:54.320
<v Speaker 2>in their patients and further filling in the clinical picture

1:06:54.400 --> 1:06:57.960
<v Speaker 2>of this disease, the photosensitive nature of the rash, the

1:06:58.040 --> 1:07:03.720
<v Speaker 2>occasional kidney heart or lungen involvement prognosis, and some treatment options.

1:07:04.560 --> 1:07:07.720
<v Speaker 2>The first treatment that people tried out that actually seemed

1:07:07.720 --> 1:07:12.160
<v Speaker 2>to have a positive effect was quinine in eighteen ninety four,

1:07:13.280 --> 1:07:17.240
<v Speaker 2>but the real change came in the nineteen forties when

1:07:17.280 --> 1:07:22.000
<v Speaker 2>Philip Hench successfully treated certain rheumatic and non rhumatic conditions

1:07:22.120 --> 1:07:26.600
<v Speaker 2>in his words, one of which was lupus with cortisone

1:07:26.640 --> 1:07:32.520
<v Speaker 2>and act so add no cordicotropic hormone, and Hench ended

1:07:32.560 --> 1:07:35.240
<v Speaker 2>up being awarded a Nobel Prize for his work on

1:07:35.320 --> 1:07:40.680
<v Speaker 2>this in nineteen fifty. Then anti malarials came back in

1:07:40.720 --> 1:07:46.640
<v Speaker 2>play around this time, with quinocrine chloroquine and hydroxic chloroquin

1:07:47.320 --> 1:07:52.520
<v Speaker 2>found found to be useful in suppressing both systemic and

1:07:52.680 --> 1:07:56.520
<v Speaker 2>cutaneous forms of lupus. And since then, since the nineteen

1:07:56.560 --> 1:08:00.000
<v Speaker 2>fifties or so, we've seen many, many, many more medications

1:08:00.040 --> 1:08:03.280
<v Speaker 2>and treatment strategies for lupus come onto the scene, which

1:08:03.360 --> 1:08:06.440
<v Speaker 2>you've talked about, Aaron. Maybe not as many as you

1:08:06.520 --> 1:08:10.240
<v Speaker 2>might hope or expect, but some of them have been

1:08:10.240 --> 1:08:14.440
<v Speaker 2>focused more like you said, on immunomodulation, which is partly

1:08:15.040 --> 1:08:19.320
<v Speaker 2>because our understanding of the pathophysiology of this disease has improved,

1:08:20.120 --> 1:08:23.519
<v Speaker 2>and the key to this understanding started really with the

1:08:23.560 --> 1:08:28.519
<v Speaker 2>discovery of the LE cell by Malcolm Hargraves, Robert Morton,

1:08:28.880 --> 1:08:34.800
<v Speaker 2>and Helen Richmond in nineteen forty eight. Lee means lupus arethematosis.

1:08:34.920 --> 1:08:38.880
<v Speaker 2>It's also sometimes called the hart Graves cell. Okay, And

1:08:39.280 --> 1:08:43.400
<v Speaker 2>what this discovery did was allow for a test for

1:08:43.640 --> 1:08:46.839
<v Speaker 2>sl if you look for the presence of LE cells,

1:08:47.240 --> 1:08:50.040
<v Speaker 2>and you've got your confirmation except for the fact that

1:08:50.200 --> 1:08:53.720
<v Speaker 2>LE cells are not specific to just systemic lupus arethematosis.

1:08:54.760 --> 1:08:58.759
<v Speaker 2>But it meant that you could diagnose milder forms of lupus,

1:08:58.800 --> 1:09:01.520
<v Speaker 2>which had been more difficul to do in the past.

1:09:02.240 --> 1:09:08.360
<v Speaker 2>But beyond this practical and really incredible application of LE cells, though,

1:09:08.720 --> 1:09:11.360
<v Speaker 2>was the significance that they held for the way this

1:09:11.520 --> 1:09:18.040
<v Speaker 2>disease worked. Because these cells demonstrated that autoimmunity was involved

1:09:18.040 --> 1:09:22.280
<v Speaker 2>in lupus, the idea that the body could attack itself

1:09:22.439 --> 1:09:26.520
<v Speaker 2>was beginning to take shape during this period, with tremendous

1:09:26.600 --> 1:09:31.559
<v Speaker 2>implications for understanding several many other diseases that had remained

1:09:32.160 --> 1:09:35.840
<v Speaker 2>like almost mysteries up to this point. And so now

1:09:36.280 --> 1:09:38.240
<v Speaker 2>I want to take us through a brief tour of

1:09:38.320 --> 1:09:42.240
<v Speaker 2>how we came to terms with this concept. With the caveat,

1:09:42.320 --> 1:09:44.600
<v Speaker 2>of course, that this is a brief tour, not a

1:09:44.600 --> 1:09:49.519
<v Speaker 2>comprehensive story of autoimmunity discovery and research. I can't wait.

1:09:50.439 --> 1:09:56.960
<v Speaker 2>The term autoimmune was not used until nineteen fifty one. Cool,

1:09:57.160 --> 1:09:59.760
<v Speaker 2>and it was only in nineteen fifty seven that the

1:09:59.760 --> 1:10:01.920
<v Speaker 2>WORL autoimmunity was coined.

1:10:02.760 --> 1:10:06.240
<v Speaker 3>I can't tell if I feel like that is earlier

1:10:06.360 --> 1:10:07.760
<v Speaker 3>or later than I expected.

1:10:08.640 --> 1:10:12.160
<v Speaker 2>I really don't know. I think I was shocked. It

1:10:12.240 --> 1:10:16.639
<v Speaker 2>felt so so recent because that was nearly a century

1:10:17.320 --> 1:10:20.479
<v Speaker 2>after germ theory was first proposed and began to sort

1:10:20.479 --> 1:10:21.080
<v Speaker 2>of take hold.

1:10:21.920 --> 1:10:24.240
<v Speaker 3>Yeah, but it also kind of makes sense that, like

1:10:24.600 --> 1:10:27.160
<v Speaker 3>it's a really complicated piece to be able to figure out.

1:10:27.320 --> 1:10:32.800
<v Speaker 2>So it's really complicated and it's counterintuitive, right, So I mean,

1:10:33.439 --> 1:10:35.720
<v Speaker 2>oh yeah, I mean, and I'm not I'm not blaming

1:10:35.800 --> 1:10:40.840
<v Speaker 2>these figure it out earlier. Yeah, what's wrong with you?

1:10:40.960 --> 1:10:44.960
<v Speaker 2>Come on? But I do think that it's just so

1:10:45.680 --> 1:10:49.840
<v Speaker 2>interesting to also sort of like watch this progress of

1:10:49.920 --> 1:10:53.080
<v Speaker 2>how this concept was formed. So let's let's get into it.

1:10:53.200 --> 1:10:56.880
<v Speaker 2>I can't wait. But first I wanted to point out

1:10:56.920 --> 1:11:02.200
<v Speaker 2>that the idea of autoimmunity parallels what was in pre

1:11:02.320 --> 1:11:07.840
<v Speaker 2>germ theory. Times, the dominant idea of disease development the

1:11:07.960 --> 1:11:11.720
<v Speaker 2>humoral theory of disease. Right, I'm sure listeners of the

1:11:11.720 --> 1:11:16.040
<v Speaker 2>podcast are familiar with the humoral theory, but just in case,

1:11:16.280 --> 1:11:19.639
<v Speaker 2>disease was thought to arise due to an imbalance in

1:11:19.680 --> 1:11:23.479
<v Speaker 2>one of the bodily humors yellow bile, black bile, blood,

1:11:23.520 --> 1:11:26.920
<v Speaker 2>and phlegme. So like too much of one humor or

1:11:26.920 --> 1:11:29.759
<v Speaker 2>not enough of another, or a blockage of one kind

1:11:29.880 --> 1:11:33.160
<v Speaker 2>whatever those sorts of things could lead to disease. And

1:11:33.200 --> 1:11:36.280
<v Speaker 2>what caused too much of one or not enough of another,

1:11:36.680 --> 1:11:41.960
<v Speaker 2>I mean, could be anything, including a predisposition that was

1:11:42.040 --> 1:11:47.679
<v Speaker 2>inherited from your parents, Okay, And so when people started

1:11:47.720 --> 1:11:53.040
<v Speaker 2>recognizing immune system disorders like two weak or strong of

1:11:53.080 --> 1:11:57.439
<v Speaker 2>a reaction reacting to yourself, this kind of harkened back

1:11:57.560 --> 1:12:03.479
<v Speaker 2>to the internal balance driven humoral theory of disease. And

1:12:03.560 --> 1:12:08.639
<v Speaker 2>I wonder whether this, you know, throwback idea or this

1:12:08.720 --> 1:12:12.320
<v Speaker 2>like feeling of it being a throwback idea contributed to

1:12:12.320 --> 1:12:16.200
<v Speaker 2>people being more resistant to the idea of autoimmunity, at

1:12:16.320 --> 1:12:23.120
<v Speaker 2>least initially. And also I think this very late eighteen

1:12:23.200 --> 1:12:29.120
<v Speaker 2>hundred's early nineteen hundreds denial that we could be anything

1:12:29.200 --> 1:12:32.519
<v Speaker 2>less than perfect, that humans were not the pinnacle of

1:12:32.560 --> 1:12:38.160
<v Speaker 2>evolution or you know, like we have reached the maximum.

1:12:38.520 --> 1:12:42.920
<v Speaker 2>How could our bodies fail us? It's not possible. But

1:12:43.120 --> 1:12:48.760
<v Speaker 2>also the introduction of germ theory had reframed disease so

1:12:48.800 --> 1:12:53.120
<v Speaker 2>that it became a battle us versus them. And think

1:12:53.120 --> 1:12:55.519
<v Speaker 2>about the language that we use when we talk about

1:12:55.560 --> 1:12:59.880
<v Speaker 2>infectious diseases, wage of war against these microbes. We fight

1:13:00.120 --> 1:13:05.639
<v Speaker 2>off infection, microbial invaders. And this language of war of

1:13:05.680 --> 1:13:10.200
<v Speaker 2>our bodies fighting an external threat emerged with germ theory

1:13:10.240 --> 1:13:13.639
<v Speaker 2>in the mid to late nineteenth century when it seemed

1:13:13.680 --> 1:13:15.759
<v Speaker 2>like it was really only a matter of time before

1:13:15.840 --> 1:13:20.559
<v Speaker 2>every clinically recognized disease was linked to a particular microbe.

1:13:20.840 --> 1:13:23.959
<v Speaker 2>And this shift in the perception of disease was happening

1:13:24.320 --> 1:13:28.760
<v Speaker 2>at a time when medicine was becoming overall less personalized,

1:13:29.800 --> 1:13:33.600
<v Speaker 2>less about talking to the person and listening to the

1:13:33.640 --> 1:13:37.320
<v Speaker 2>person that you were trying to help, but instead looking

1:13:37.360 --> 1:13:42.679
<v Speaker 2>for signs of disease, measuring, culturing, testing, seeing the disease

1:13:42.960 --> 1:13:45.719
<v Speaker 2>versus seeing the patient, which was I feel like we've

1:13:45.960 --> 1:13:49.240
<v Speaker 2>talked about this in a number of episodes erin absolutely

1:13:49.400 --> 1:13:53.280
<v Speaker 2>we have, and of course, this wasn't true across the board,

1:13:53.439 --> 1:13:57.160
<v Speaker 2>especially when microbes couldn't be found for certain illnesses, and

1:13:57.280 --> 1:14:01.120
<v Speaker 2>one of the pockets where patient centered medicine remained was

1:14:01.160 --> 1:14:04.120
<v Speaker 2>in what we would come to recognize as autoimmune disease,

1:14:04.840 --> 1:14:09.519
<v Speaker 2>where years of looking hadn't been able to conclusively link

1:14:09.560 --> 1:14:14.080
<v Speaker 2>a specific microbe to MS, although, as we talked about,

1:14:14.240 --> 1:14:20.000
<v Speaker 2>maybe we're getting there, or rheumatoid arthritis or lupus, although

1:14:20.000 --> 1:14:22.920
<v Speaker 2>remember when I mentioned lupus was thought to be related

1:14:22.920 --> 1:14:27.600
<v Speaker 2>to syphilis. The Washerman test, when that was developed specifically

1:14:27.600 --> 1:14:31.400
<v Speaker 2>to test for syphilis, many people with lupus showed false positives,

1:14:32.160 --> 1:14:33.640
<v Speaker 2>and I'll talk a little bit more about that in

1:14:33.640 --> 1:14:37.120
<v Speaker 2>a second, but that further confused the issue. But when

1:14:37.160 --> 1:14:41.840
<v Speaker 2>people were finding specific pathogens for specific diseases like tuberculosis

1:14:41.960 --> 1:14:45.320
<v Speaker 2>or plague, or finding that a vaccine worked even without

1:14:45.360 --> 1:14:49.720
<v Speaker 2>isolating the pathogen like rabies, what did they think was

1:14:49.800 --> 1:14:53.839
<v Speaker 2>happening inside of our bodies during this fight or battle

1:14:54.000 --> 1:14:58.160
<v Speaker 2>or war? Yeah? By how did they think vaccines worked?

1:14:59.320 --> 1:15:02.320
<v Speaker 2>Or even more simply, how did they think people went

1:15:02.360 --> 1:15:06.960
<v Speaker 2>from being sick to not sick? Yeah? This question was

1:15:07.000 --> 1:15:10.000
<v Speaker 2>still largely unanswered at the turn of the twentieth century.

1:15:10.439 --> 1:15:12.599
<v Speaker 3>I feel like that just makes sense to me because

1:15:12.640 --> 1:15:16.200
<v Speaker 3>it's like, first they did something and they were like, oh, this,

1:15:16.200 --> 1:15:18.080
<v Speaker 3>this does the thing that we wanted to do, and

1:15:18.120 --> 1:15:20.519
<v Speaker 3>then later way after that is when they figured out

1:15:20.560 --> 1:15:24.799
<v Speaker 3>like how it actually did that, and so yeah, oh man.

1:15:24.960 --> 1:15:29.400
<v Speaker 2>It's it is. I just love thinking about the sequence. Yeah,

1:15:29.439 --> 1:15:32.519
<v Speaker 2>it's really fun. And in the previous decades, I mean,

1:15:32.520 --> 1:15:37.160
<v Speaker 2>people had been working on this question. You have Pasture Mechnikov,

1:15:37.560 --> 1:15:42.760
<v Speaker 2>Erlik and many others that proposed various hypotheses like a

1:15:42.840 --> 1:15:46.240
<v Speaker 2>person became immune when the bacteria had consumed all of

1:15:46.280 --> 1:15:48.600
<v Speaker 2>the substrate in the body that it could grow on,

1:15:49.600 --> 1:15:54.080
<v Speaker 2>or our circulating cells swallowed and destroyed the invading bacteria

1:15:54.200 --> 1:15:58.320
<v Speaker 2>or parasites, a process called phagocytosis. We do that, we

1:15:58.479 --> 1:16:03.320
<v Speaker 2>do that, or Aerlich's idea that there is some humoral element,

1:16:03.600 --> 1:16:07.960
<v Speaker 2>which he called antibodies, circulating in our blood serum that

1:16:08.000 --> 1:16:14.000
<v Speaker 2>defends against invaders, recognizing not self from self Airlik for

1:16:14.080 --> 1:16:17.280
<v Speaker 2>the wind, Airlic for the wind, and he developed this

1:16:17.400 --> 1:16:21.800
<v Speaker 2>idea in the eighteen nineties by conducting experiment after experiment

1:16:22.120 --> 1:16:25.760
<v Speaker 2>observing what happened when he applied toxins and antitoxins to

1:16:25.800 --> 1:16:29.840
<v Speaker 2>animal tissues in test tubes. He proposed that our cell

1:16:29.880 --> 1:16:35.840
<v Speaker 2>membranes naturally contain antitoxins or antibodies that are highly specific

1:16:36.160 --> 1:16:41.120
<v Speaker 2>and bind tightly and irreversibly to foreign substances, which he

1:16:41.200 --> 1:16:46.479
<v Speaker 2>called antigens that have been introduced. He then speculated that

1:16:46.640 --> 1:16:51.519
<v Speaker 2>once this first binding occurs, it triggers the production of

1:16:51.720 --> 1:16:56.320
<v Speaker 2>more of those antibodies. He also included in this process

1:16:56.479 --> 1:17:01.560
<v Speaker 2>something he called complement, some unknown substance that also attached

1:17:01.560 --> 1:17:05.360
<v Speaker 2>to this complex of antibody and antigen and led to

1:17:05.400 --> 1:17:12.760
<v Speaker 2>all this clumping, clumping, clumping. Aerlick's conceptual idea of immunity

1:17:12.960 --> 1:17:17.120
<v Speaker 2>wasn't widely recognized, like people were like, eh, I mean,

1:17:17.200 --> 1:17:19.960
<v Speaker 2>I don't know. I think it goes down more like this.

1:17:20.160 --> 1:17:22.519
<v Speaker 2>I think it's a little bit less of that, a

1:17:22.520 --> 1:17:25.599
<v Speaker 2>little bit more of this. And one of these people

1:17:26.439 --> 1:17:31.800
<v Speaker 2>was an immunologist named Carl Landsteiner, who disagreed with the

1:17:31.840 --> 1:17:36.400
<v Speaker 2>one to one, highly specific and chemical nature of aerlix idea.

1:17:37.439 --> 1:17:42.600
<v Speaker 2>Landsteiner felt that immunity was more individual and varied that

1:17:42.680 --> 1:17:46.719
<v Speaker 2>it wasn't this binary where either very specific binding happened

1:17:46.880 --> 1:17:49.720
<v Speaker 2>or it didn't, but rather that there could be degrees

1:17:49.800 --> 1:17:54.959
<v Speaker 2>of specificity, and Lansteiner grew interested in a rare disease

1:17:55.160 --> 1:18:01.720
<v Speaker 2>called paroximal cold hemoglobinaria. Basically, in this disease, correct me

1:18:01.760 --> 1:18:05.840
<v Speaker 2>if I'm wrong. What happens is that if someone with

1:18:05.960 --> 1:18:10.360
<v Speaker 2>this disease is exposed to cold temperatures, they produce an

1:18:10.360 --> 1:18:13.479
<v Speaker 2>antibody that binds to a protein on the surface of

1:18:13.520 --> 1:18:16.920
<v Speaker 2>their red blood cells. And then when the body gets

1:18:17.040 --> 1:18:19.600
<v Speaker 2>back up to temperature, so it's like an extremity or

1:18:19.600 --> 1:18:24.400
<v Speaker 2>something that complex fixes compliment and causes the red blood

1:18:24.439 --> 1:18:30.120
<v Speaker 2>cells to burst open, leading to bloody urine or occasionally anemia.

1:18:30.960 --> 1:18:34.000
<v Speaker 2>It's so interesting. What on Earth? I had never heard

1:18:34.000 --> 1:18:38.639
<v Speaker 2>of this before. It's a thang, it's a real thing.

1:18:39.000 --> 1:18:43.400
<v Speaker 2>It's wild. But this mechanism was not known at the time,

1:18:43.560 --> 1:18:45.759
<v Speaker 2>of course, which is why Lansteiner was trying to figure

1:18:45.800 --> 1:18:48.639
<v Speaker 2>it out. So he took some red blood cells from

1:18:48.680 --> 1:18:51.120
<v Speaker 2>a few people with the disease and place them in

1:18:51.160 --> 1:18:54.479
<v Speaker 2>cold water. Then he added their warm blood plasma to

1:18:54.520 --> 1:18:57.360
<v Speaker 2>the tube, and when he did this, the liquid turned

1:18:57.400 --> 1:19:01.479
<v Speaker 2>red as the blood cells were destroyed. Landsteiner figured that

1:19:01.640 --> 1:19:05.320
<v Speaker 2>with no other substances in the tube, the antibodies in

1:19:05.360 --> 1:19:08.839
<v Speaker 2>the serum must have recognized the cold red blood cells

1:19:08.880 --> 1:19:13.759
<v Speaker 2>as antigens foreign substances and bound to them, which fixed

1:19:13.760 --> 1:19:19.760
<v Speaker 2>a complement at warmer temperatures, rupturing the cells. These individuals'

1:19:19.880 --> 1:19:24.840
<v Speaker 2>own immune systems were attacking the body's cells. This is

1:19:24.880 --> 1:19:28.080
<v Speaker 2>in nineteen oh four, Landsteiner had identified one of the

1:19:28.120 --> 1:19:34.960
<v Speaker 2>first autoimmune diseases. Wow. This completely went against the accepted

1:19:35.000 --> 1:19:39.880
<v Speaker 2>idea more or less of antibodies only binding to foreign substances.

1:19:41.040 --> 1:19:45.360
<v Speaker 2>Although Erlik did mention the possibility that autoantibodies could exist,

1:19:45.520 --> 1:19:48.040
<v Speaker 2>but that there must be some sort of regulatory mechanism

1:19:48.080 --> 1:19:51.360
<v Speaker 2>that prevented their existence, because it would be terrible if

1:19:51.479 --> 1:19:53.240
<v Speaker 2>they if it didn't, if they were just allowed to

1:19:53.280 --> 1:19:53.920
<v Speaker 2>run rampant.

1:19:54.240 --> 1:19:58.120
<v Speaker 3>Whoa, And like, he's right, it does exist, but it's imperfect.

1:19:58.320 --> 1:20:03.599
<v Speaker 2>I know Eric did the most. I had no idea

1:20:03.800 --> 1:20:11.160
<v Speaker 2>so much. Landsteiner didn't stop at proximal cold hemoglobinuria, though

1:20:11.800 --> 1:20:14.719
<v Speaker 2>he dug further into this idea of the immune system

1:20:14.880 --> 1:20:18.680
<v Speaker 2>not being as specific or predictable as Erlik wanted it

1:20:18.720 --> 1:20:22.520
<v Speaker 2>to be by taking a closer look at the aforementioned

1:20:22.680 --> 1:20:28.680
<v Speaker 2>Wassermann test for syphilis. So this test people claimed detected

1:20:28.720 --> 1:20:32.960
<v Speaker 2>antibodies specifically for the spiral keet that caused the disease.

1:20:34.040 --> 1:20:37.519
<v Speaker 2>Landsteiner didn't trust this claim of specificity. I love his

1:20:37.640 --> 1:20:43.080
<v Speaker 2>skepticism just throughout. I think no, no, no, no, I don't

1:20:43.080 --> 1:20:46.800
<v Speaker 2>think so. And he and a few others showed that

1:20:46.840 --> 1:20:50.360
<v Speaker 2>the test actually responded to various types of tissues, and

1:20:50.400 --> 1:20:52.559
<v Speaker 2>that you didn't have to have syphilis to have a

1:20:52.600 --> 1:20:57.280
<v Speaker 2>positive syphilis test, that in fact, the test may actually

1:20:57.320 --> 1:21:00.919
<v Speaker 2>be picking up on the body's immune response to damage tissues,

1:21:01.520 --> 1:21:05.360
<v Speaker 2>whether that damage was caused by syphilis or something else. Entirely,

1:21:06.840 --> 1:21:09.840
<v Speaker 2>and so slowly, the idea of the immune system being

1:21:09.880 --> 1:21:13.439
<v Speaker 2>more general than one to one began to take shape.

1:21:14.000 --> 1:21:15.840
<v Speaker 2>The next piece of the puzzle came in the form

1:21:15.880 --> 1:21:21.320
<v Speaker 2>of anaphylaxis research, which suggested that anaphylaxis was an immune

1:21:21.360 --> 1:21:26.799
<v Speaker 2>response an overreaction, showing that hey, the immune system doesn't

1:21:26.840 --> 1:21:30.120
<v Speaker 2>always get it right, that sometimes the immune system can

1:21:30.240 --> 1:21:34.280
<v Speaker 2>actually cause severe damage to the person that it's trying

1:21:34.320 --> 1:21:40.719
<v Speaker 2>to protect well, and then serum sickness where someone develops

1:21:40.720 --> 1:21:45.120
<v Speaker 2>a severe reaction to antitoxins or SIRA also demonstrated the

1:21:45.160 --> 1:21:49.760
<v Speaker 2>self destructive potential of the immune system. And just to

1:21:49.800 --> 1:21:54.360
<v Speaker 2>show you how incomprehensible the idea of autoimmunity was, this

1:21:54.439 --> 1:21:59.320
<v Speaker 2>is what two researchers involved in investigating serum sickness wrote, quote.

1:22:00.120 --> 1:22:03.840
<v Speaker 2>The conception that the antibodies which should protect against the

1:22:03.880 --> 1:22:08.519
<v Speaker 2>disease are also responsible for the disease sounds at first

1:22:08.680 --> 1:22:13.960
<v Speaker 2>absurd end quote. One of these researchers who had this quote, Perquet,

1:22:14.160 --> 1:22:17.360
<v Speaker 2>went on to coin the word and developed the concept

1:22:17.520 --> 1:22:22.719
<v Speaker 2>of allergies fine, I know right. That was around nineteen

1:22:22.760 --> 1:22:26.640
<v Speaker 2>o six, and it was to describe a change sensitivity

1:22:26.640 --> 1:22:29.479
<v Speaker 2>of the immune system to a substance, like any kind

1:22:29.520 --> 1:22:34.800
<v Speaker 2>of substance. Really, The conceptual framing of things like anaphylaxis

1:22:34.840 --> 1:22:39.920
<v Speaker 2>and allergies and sensitivities as the immune system not doing

1:22:39.960 --> 1:22:44.120
<v Speaker 2>what it was quote unquote supposed to and causing damage

1:22:44.120 --> 1:22:46.679
<v Speaker 2>in the process paved the way for people to carry

1:22:46.680 --> 1:22:50.519
<v Speaker 2>out experiments on these things, and these experiments ended up

1:22:50.520 --> 1:22:53.360
<v Speaker 2>showing that the immune system could be provoked into responding

1:22:53.479 --> 1:22:57.120
<v Speaker 2>so intensely to a particular stimulus that it led to

1:22:57.280 --> 1:23:02.640
<v Speaker 2>severe damage or even death. In this type of research

1:23:03.600 --> 1:23:07.439
<v Speaker 2>helped the idea of autoimmunity gain traction. In the early

1:23:07.479 --> 1:23:12.320
<v Speaker 2>decades of the twentieth century, and so autoimmunity grew from

1:23:12.439 --> 1:23:16.439
<v Speaker 2>a fringe and controversial idea of research in the early

1:23:16.479 --> 1:23:21.360
<v Speaker 2>twentieth century to a popular, highly funded, and productive field

1:23:21.479 --> 1:23:24.799
<v Speaker 2>unto itself by the middle of the century, helped along

1:23:24.880 --> 1:23:27.479
<v Speaker 2>by the Second World War and the enormous amount of

1:23:27.479 --> 1:23:31.280
<v Speaker 2>money that had been poured into biomedical research during that time.

1:23:32.520 --> 1:23:35.400
<v Speaker 2>I think a quote from a book about the history

1:23:35.400 --> 1:23:39.920
<v Speaker 2>of autoimmunity by Warwick Anderson and Ian McKay puts it nicely.

1:23:40.920 --> 1:23:45.280
<v Speaker 2>Quote during the twentieth century, autoimmunity has progressed from a

1:23:45.320 --> 1:23:50.640
<v Speaker 2>prohibited occurrence to an uncommon pathology to a normal process,

1:23:50.920 --> 1:23:54.960
<v Speaker 2>from never to sometimes to always. And I just I

1:23:55.040 --> 1:23:58.800
<v Speaker 2>love that because it is so much of autoimmunity as

1:23:58.840 --> 1:24:02.360
<v Speaker 2>like finding the boundary between when a symptom becomes a

1:24:02.439 --> 1:24:05.000
<v Speaker 2>disease and how do you do that and how do

1:24:05.040 --> 1:24:07.840
<v Speaker 2>you do that in a way that is helpful and

1:24:07.920 --> 1:24:12.799
<v Speaker 2>not harmful? I don't know, But in the context of lupus,

1:24:13.280 --> 1:24:19.040
<v Speaker 2>this transformation from unknown pathology to autoimmunity became most apparent

1:24:19.160 --> 1:24:22.120
<v Speaker 2>with the discovery of the le cell, which I mentioned earlier,

1:24:22.439 --> 1:24:25.680
<v Speaker 2>but I'm going to revisit real quick. When Hargrave and

1:24:25.720 --> 1:24:30.200
<v Speaker 2>colleagues discovered the cell in people with systemic lupus arithematosis,

1:24:30.640 --> 1:24:33.400
<v Speaker 2>the significance of it was initially lost on them in

1:24:33.479 --> 1:24:36.759
<v Speaker 2>terms of what role the cell played. All they knew

1:24:36.840 --> 1:24:39.840
<v Speaker 2>was that they had watched these cells engulfing and digesting

1:24:39.920 --> 1:24:44.040
<v Speaker 2>nuclear matter, probably left over from other cells. But what

1:24:44.120 --> 1:24:47.800
<v Speaker 2>that meant who knew? Well. A couple of years later,

1:24:47.960 --> 1:24:52.200
<v Speaker 2>other researchers would find out. These researchers showed that the

1:24:52.240 --> 1:24:55.760
<v Speaker 2>production of these cells was stimulated by gamma globulin in

1:24:55.800 --> 1:24:58.639
<v Speaker 2>the blood and a body, and that during a flare

1:24:58.720 --> 1:25:02.200
<v Speaker 2>up of sl the a fraction of gamma globuline was high,

1:25:02.600 --> 1:25:07.080
<v Speaker 2>but then dropped during clinical remission. And when they fluorescently

1:25:07.120 --> 1:25:11.920
<v Speaker 2>tagged antibodies, they saw that quote, an antibody was reacting

1:25:11.960 --> 1:25:15.280
<v Speaker 2>with a nuclear antigen, and so we had an antibody

1:25:15.320 --> 1:25:19.599
<v Speaker 2>to a nucleic acid arising in the disease end quote.

1:25:20.280 --> 1:25:23.960
<v Speaker 2>And this marked systemic lupus arithematosis as the latest disease

1:25:24.160 --> 1:25:28.599
<v Speaker 2>found to have an autoimmune basis, And in some ways

1:25:29.040 --> 1:25:33.479
<v Speaker 2>the post war enthusiasm for autoimmune diseases kind of mirrored

1:25:33.520 --> 1:25:36.679
<v Speaker 2>that of the early years of germ theory, when behind

1:25:36.760 --> 1:25:39.840
<v Speaker 2>every disease it was believed a microbe stood and now

1:25:39.880 --> 1:25:43.640
<v Speaker 2>it's like every disease that we don't know has a

1:25:43.720 --> 1:25:47.760
<v Speaker 2>cause is autoimmune. And that's not That's not what was

1:25:47.840 --> 1:25:53.400
<v Speaker 2>found ultimately. But the research into autoimmunity uncovered the cellular

1:25:53.439 --> 1:25:57.599
<v Speaker 2>basis of immune function, the interplay between innate and adaptive

1:25:57.600 --> 1:26:02.360
<v Speaker 2>immune responses, and possible ways to suppress or manipulate the

1:26:02.400 --> 1:26:06.120
<v Speaker 2>immune system, such as through the use of steroids. And

1:26:06.200 --> 1:26:10.920
<v Speaker 2>this knowledge could be used in organ transplantation, vaccine improvement,

1:26:11.280 --> 1:26:16.080
<v Speaker 2>and treatment of autoimmune diseases, where again the issue of

1:26:16.200 --> 1:26:20.280
<v Speaker 2>balance came into play, striking the right treatment balance where

1:26:20.280 --> 1:26:23.240
<v Speaker 2>it suppresses your immune systems enough but doesn't lead to

1:26:23.360 --> 1:26:27.479
<v Speaker 2>terrible side effects, which people were noticing steroids could do.

1:26:28.840 --> 1:26:32.559
<v Speaker 2>But while the concept of autoimmunity provided an answer and

1:26:32.640 --> 1:26:37.000
<v Speaker 2>an avenue for treatment, there was and still is one

1:26:37.040 --> 1:26:44.800
<v Speaker 2>big question that remained. Why why do some people get

1:26:44.800 --> 1:26:50.640
<v Speaker 2>autoimmune diseases and others don't. Yeah, I'm not going to

1:26:50.960 --> 1:26:55.880
<v Speaker 2>even pretend to try to answer that question, because no

1:26:55.920 --> 1:27:01.400
<v Speaker 2>one knows, But but I do want to very briefly

1:27:01.479 --> 1:27:06.599
<v Speaker 2>discuss one of the more recent interesting hypotheses that might

1:27:06.640 --> 1:27:09.760
<v Speaker 2>be part of why we see the sex differences in

1:27:09.800 --> 1:27:14.000
<v Speaker 2>autoimmune disorders that we see. This is called the pregnancy

1:27:14.040 --> 1:27:19.320
<v Speaker 2>compensation hypothesis. Okay, so Aarin you briefly mentioned this striking

1:27:19.640 --> 1:27:24.799
<v Speaker 2>sex differences in incidents of systemic lupus arithematosis. People assigned

1:27:24.800 --> 1:27:28.240
<v Speaker 2>female at birth have a fourfold higher risk of developing

1:27:28.439 --> 1:27:31.600
<v Speaker 2>lupus compared to those assigned male at birth, and the

1:27:31.680 --> 1:27:35.120
<v Speaker 2>sex ratio for lupus is about eight to one females

1:27:35.160 --> 1:27:38.760
<v Speaker 2>to males. And lupus isn't the only autoimmune disease that

1:27:38.840 --> 1:27:42.080
<v Speaker 2>tends to be more prevalent in people assign female at

1:27:42.160 --> 1:27:47.240
<v Speaker 2>birth compared to those assigned male at birth. Hashimotos Graves

1:27:47.280 --> 1:27:50.599
<v Speaker 2>disease and multiple sclerosis also tend to follow this pattern.

1:27:51.640 --> 1:27:54.840
<v Speaker 2>According to one estimate, eighty percent of all people with

1:27:54.880 --> 1:27:59.120
<v Speaker 2>autoimmune conditions are female. Wow. And a lot of people

1:27:59.160 --> 1:28:03.240
<v Speaker 2>are curious as to what might be driving this, And

1:28:03.240 --> 1:28:05.680
<v Speaker 2>one of the latest ideas that's gotten a lot of

1:28:05.760 --> 1:28:10.799
<v Speaker 2>press is the pregnancy compensation hypothesis developed by doctor Melissa

1:28:10.840 --> 1:28:14.439
<v Speaker 2>Wilson and her lab at ASU and I'll include the

1:28:14.479 --> 1:28:17.880
<v Speaker 2>paper as well as a couple interesting responses to this

1:28:18.000 --> 1:28:21.360
<v Speaker 2>paper on our sources list for this episode, so you

1:28:21.400 --> 1:28:25.880
<v Speaker 2>can get much more detailed there. But essentially, this hypothesis

1:28:25.920 --> 1:28:30.200
<v Speaker 2>suggests that the stronger immune response observed in people assigned

1:28:30.240 --> 1:28:33.840
<v Speaker 2>female at birth has evolved as a result of how

1:28:33.880 --> 1:28:39.720
<v Speaker 2>the immune system is heavily regulated during pregnancy, predisposing females

1:28:39.800 --> 1:28:44.800
<v Speaker 2>to autoimmune disorders, and that the lower numbers of pregnancies

1:28:44.880 --> 1:28:50.040
<v Speaker 2>people experience in industrialized regions today, as well as fewer

1:28:50.040 --> 1:28:54.439
<v Speaker 2>immune challenges in terms of pathogens and parasites and thus

1:28:54.560 --> 1:28:58.960
<v Speaker 2>less immune modulation overall, has led to an increase in

1:28:59.000 --> 1:29:00.800
<v Speaker 2>the rates of these disorders.

1:29:01.479 --> 1:29:04.720
<v Speaker 3>So you're saying that the hypothesis is that people who

1:29:04.800 --> 1:29:10.120
<v Speaker 3>are capable of pregnancy have a stronger baseline immune response

1:29:10.520 --> 1:29:14.439
<v Speaker 3>because it's going to be depressed during pregnancy, and then

1:29:14.720 --> 1:29:18.519
<v Speaker 3>in places where we see less pregnancies over time, we

1:29:18.640 --> 1:29:22.599
<v Speaker 3>then see an increased risk of these autoimmune diseases as

1:29:22.640 --> 1:29:23.120
<v Speaker 3>a result.

1:29:23.680 --> 1:29:25.880
<v Speaker 2>Right, So it's sort of like the lower rates of

1:29:25.880 --> 1:29:32.240
<v Speaker 2>pregnancy in some regions prevents the immune system modulation, and

1:29:32.280 --> 1:29:36.200
<v Speaker 2>so then these immune systems just kind of go on

1:29:36.240 --> 1:29:37.439
<v Speaker 2>overdrives on overdrive.

1:29:37.560 --> 1:29:42.160
<v Speaker 3>Yeah, okay, yeah, because we do see significant declines in

1:29:42.560 --> 1:29:46.400
<v Speaker 3>immune system like response and function during pregnancy.

1:29:47.120 --> 1:29:50.559
<v Speaker 2>That's well known. Yeah, so okay, let's let's get into

1:29:50.600 --> 1:29:53.840
<v Speaker 2>this a little bit more so. First, why would people

1:29:53.960 --> 1:29:59.040
<v Speaker 2>need to have stronger immune responses to protect them during pregnancy?

1:30:00.160 --> 1:30:03.360
<v Speaker 2>Keeping with the theme of this history section, it comes

1:30:03.400 --> 1:30:08.160
<v Speaker 2>back to balance. Throughout pregnancy, the placenta and the pregnant

1:30:08.240 --> 1:30:13.439
<v Speaker 2>person are engaged in this dance of immunomodulation. If the

1:30:13.479 --> 1:30:16.880
<v Speaker 2>pregnant person's immune system is too strong, there's a risk

1:30:16.920 --> 1:30:20.680
<v Speaker 2>that it recognizes the fetus as not self and then

1:30:20.800 --> 1:30:24.439
<v Speaker 2>the immune system attacks it. So the placenta, which is

1:30:24.760 --> 1:30:29.320
<v Speaker 2>highly invasive and like kind of can control so much

1:30:29.320 --> 1:30:36.080
<v Speaker 2>is amazing currently. Yeah, so what's happening in you right now,

1:30:36.280 --> 1:30:41.680
<v Speaker 2>Erin is that this highly invasive placenta kind of suppresses

1:30:41.800 --> 1:30:46.439
<v Speaker 2>the maternal immune response. But then if the immune system

1:30:47.040 --> 1:30:50.280
<v Speaker 2>is too suppressed, that's not good either because it leaves

1:30:50.320 --> 1:30:54.040
<v Speaker 2>this person more susceptible to things like infections. And so

1:30:54.120 --> 1:30:57.559
<v Speaker 2>there's this careful balance that has to be struck where

1:30:57.600 --> 1:31:00.919
<v Speaker 2>the pregnant person's body has to like kind of bargain.

1:31:01.360 --> 1:31:03.960
<v Speaker 2>All right, I'm going to downregulate this much. But that's

1:31:04.000 --> 1:31:06.440
<v Speaker 2>my final offer, because if I get sick from a pathogen.

1:31:06.520 --> 1:31:10.040
<v Speaker 2>That's not great for either of us, right, And this

1:31:10.240 --> 1:31:15.080
<v Speaker 2>dance has evolved over millions of years. And to compensate

1:31:15.280 --> 1:31:19.440
<v Speaker 2>for this pressure to downregulate the immune system during pregnancy,

1:31:19.920 --> 1:31:25.640
<v Speaker 2>it's thought that females have evolved more heightened immune systems overall,

1:31:26.000 --> 1:31:29.759
<v Speaker 2>so that when the placenta starts that immunosuppression, it doesn't

1:31:29.840 --> 1:31:35.720
<v Speaker 2>drop to dire levels. In the pregnancy compensation hypothesis, this

1:31:35.920 --> 1:31:40.200
<v Speaker 2>higher immune response overall in females is what drives higher

1:31:40.240 --> 1:31:45.200
<v Speaker 2>predisposition to autoimmune disease. And there are some autoimmune diseases

1:31:45.320 --> 1:31:49.240
<v Speaker 2>where symptoms tend to decrease during pregnancy or flare ups

1:31:49.280 --> 1:31:53.880
<v Speaker 2>become more infrequent, but not all. Notably with loopus, there

1:31:53.920 --> 1:31:57.000
<v Speaker 2>tends to be either no reduction in symptoms or worsening

1:31:57.120 --> 1:32:04.040
<v Speaker 2>during pregnancy. Yep, again loopus. But that's the pregnancy compensation

1:32:04.160 --> 1:32:08.880
<v Speaker 2>hypothesis in the tiniest of nutshells, and hopefully I portrayed it,

1:32:08.920 --> 1:32:13.080
<v Speaker 2>you know, relatively accurately. But there is so much more

1:32:13.120 --> 1:32:18.080
<v Speaker 2>to it, including X inactivation. So, like you talked about Aaron,

1:32:18.439 --> 1:32:21.840
<v Speaker 2>people who have two X chromosomes, one X is inactivated.

1:32:21.880 --> 1:32:25.120
<v Speaker 2>But it turns out this may be more incomplete or

1:32:25.160 --> 1:32:28.880
<v Speaker 2>impermanent than we thought, especially in people with autoimmune diseases.

1:32:29.280 --> 1:32:31.479
<v Speaker 3>We touched on that a little bit in our Turner

1:32:31.520 --> 1:32:33.240
<v Speaker 3>Syndrome episode, so check that out.

1:32:35.680 --> 1:32:38.920
<v Speaker 2>But yeah, you should definitely do some further reading on

1:32:39.000 --> 1:32:43.839
<v Speaker 2>this because it is it is really interesting. But before

1:32:43.880 --> 1:32:47.320
<v Speaker 2>I end, I do, like, I really feel like I

1:32:47.320 --> 1:32:51.880
<v Speaker 2>should note that this hypothesis, while interesting and promising, is

1:32:52.000 --> 1:32:55.160
<v Speaker 2>just one of many and as far as I could tell,

1:32:55.240 --> 1:32:59.679
<v Speaker 2>there isn't much experimental data supporting it, and it doesn't

1:32:59.720 --> 1:33:04.920
<v Speaker 2>ex everything about autoimmune diseases. No one hypothesis is going

1:33:04.960 --> 1:33:08.400
<v Speaker 2>to do that because they're also different, and the authors

1:33:08.400 --> 1:33:11.960
<v Speaker 2>don't claim that it does. But I have been a

1:33:11.960 --> 1:33:15.360
<v Speaker 2>bit disappointed with some of the media depictions of this

1:33:15.479 --> 1:33:18.600
<v Speaker 2>hypothesis because they kind of present it as like the

1:33:18.680 --> 1:33:20.840
<v Speaker 2>end all be all and like here's the answer. Oh

1:33:20.840 --> 1:33:23.679
<v Speaker 2>my gosh, it's so beautiful, and it's like, well, things

1:33:23.720 --> 1:33:25.720
<v Speaker 2>are always more complicated than that.

1:33:27.479 --> 1:33:31.439
<v Speaker 3>I think that's very normal for media depictions, which is

1:33:31.479 --> 1:33:33.600
<v Speaker 3>why we will always link to primary.

1:33:34.520 --> 1:33:38.200
<v Speaker 2>Yes, honestly, it never gets les annoying. But anyway, in

1:33:38.280 --> 1:33:43.200
<v Speaker 2>any case, the pregnancy compensation hypothesis is a really interesting

1:33:44.160 --> 1:33:48.320
<v Speaker 2>component of the overall research that's being done on how

1:33:48.720 --> 1:33:54.120
<v Speaker 2>things like hormones, pathogens, the X chromosome, the placenta, pregnancy,

1:33:54.200 --> 1:33:57.840
<v Speaker 2>immune responses, and all of these things kind of interact

1:33:58.240 --> 1:34:03.080
<v Speaker 2>to maybe or maybe not lead to increased or decreased

1:34:03.240 --> 1:34:09.799
<v Speaker 2>risk of autoimmune diseases. Well, said Eric, I just waffled

1:34:09.840 --> 1:34:13.040
<v Speaker 2>a whole bunch, all right, So I think that's about

1:34:13.080 --> 1:34:16.440
<v Speaker 2>as far as I want to go into the evolutionary background,

1:34:16.960 --> 1:34:19.880
<v Speaker 2>just a little bit of a sampler, little taste. So

1:34:20.520 --> 1:34:23.720
<v Speaker 2>allow me to wrap up extremely quickly by saying that

1:34:23.760 --> 1:34:25.920
<v Speaker 2>the second half of the twentieth century was filled with

1:34:26.040 --> 1:34:31.640
<v Speaker 2>refining our knowledge of systemic lupus arithmatosis research, including understanding

1:34:31.680 --> 1:34:37.479
<v Speaker 2>genetic factors underlying disease development, working on better diagnostics, creating

1:34:37.560 --> 1:34:42.320
<v Speaker 2>disease severity or activity indices, and finally getting a better

1:34:42.840 --> 1:34:46.080
<v Speaker 2>grasp of the other more peripheral ways that lupus can

1:34:46.160 --> 1:34:49.639
<v Speaker 2>affect health and quality of life. We've come a really

1:34:49.680 --> 1:34:53.120
<v Speaker 2>long way, and Aaron, I'd love for you to tell

1:34:53.160 --> 1:34:55.519
<v Speaker 2>me how much further we may go.

1:34:56.160 --> 1:35:01.280
<v Speaker 3>Oh, I can't wait to or try to right after

1:35:01.320 --> 1:35:38.320
<v Speaker 3>this break. Blah blah blah. The numbers are poor, etc.

1:35:40.200 --> 1:35:41.439
<v Speaker 3>Now I'm gonna start this off.

1:35:42.040 --> 1:35:44.800
<v Speaker 2>I'm gonna copy and paste this into all future episodes.

1:35:45.200 --> 1:35:48.679
<v Speaker 3>Yeah, that's a good idea. It makes my job easier.

1:35:50.800 --> 1:35:52.680
<v Speaker 3>But let me hit you with the numbers that I

1:35:52.720 --> 1:35:56.000
<v Speaker 3>have gathered, which are predominantly from a paper that was

1:35:56.000 --> 1:35:59.200
<v Speaker 3>published in twenty twenty one from Nature Reviews Roomatology that

1:35:59.240 --> 1:36:01.920
<v Speaker 3>tried to look at global incidence and prevalence. And I'll

1:36:01.920 --> 1:36:04.320
<v Speaker 3>mostly talk about just prevalence of loopus since it is

1:36:04.360 --> 1:36:12.280
<v Speaker 3>a chronic disease. So North America prevalence of lupus estimates

1:36:12.360 --> 1:36:18.320
<v Speaker 3>range large, large range from forty eight all the way

1:36:18.439 --> 1:36:22.240
<v Speaker 3>up to just under four hundred cases per one hundred

1:36:22.280 --> 1:36:25.960
<v Speaker 3>thousand people, Okay, And that's predominantly based on US data,

1:36:26.680 --> 1:36:30.799
<v Speaker 3>which if you extrapolate using air and math, is between

1:36:31.880 --> 1:36:35.080
<v Speaker 3>anywhere from one hundred and forty four thousand. That's definitely

1:36:35.120 --> 1:36:38.840
<v Speaker 3>a low estimate to over a million people in North

1:36:38.880 --> 1:36:42.000
<v Speaker 3>America living with loopis Okay.

1:36:42.400 --> 1:36:42.960
<v Speaker 2>That's a lot.

1:36:43.040 --> 1:36:45.280
<v Speaker 3>That's a lot, and it's a huge range because again

1:36:45.760 --> 1:36:50.360
<v Speaker 3>not great data. In Europe, the prevalence tends to be

1:36:50.479 --> 1:36:54.519
<v Speaker 3>estimated actually at substantially lower, but it also again varies

1:36:54.680 --> 1:36:59.719
<v Speaker 3>really widely country to country, and not every country across

1:36:59.720 --> 1:37:03.479
<v Speaker 3>the GLOS globe uses the same diagnostic criteria, which makes

1:37:03.520 --> 1:37:09.799
<v Speaker 3>it even more complicated. But across Europe the estimates generally

1:37:09.920 --> 1:37:14.160
<v Speaker 3>range between thirty to seventy per one hundred thousand individuals,

1:37:14.160 --> 1:37:17.320
<v Speaker 3>so that's significantly lower than what we see in North America.

1:37:18.280 --> 1:37:21.800
<v Speaker 3>South America we have even less studies across the continent,

1:37:21.960 --> 1:37:25.920
<v Speaker 3>but estimates range from ninety to two hundred per one

1:37:25.960 --> 1:37:32.120
<v Speaker 3>hundred thousand. In Asia twenty to one hundred per one

1:37:32.160 --> 1:37:37.919
<v Speaker 3>hundred thousand, and then across Australasia and the African continent

1:37:38.080 --> 1:37:41.120
<v Speaker 3>we have like very very limited data, and most of

1:37:41.160 --> 1:37:43.840
<v Speaker 3>the data that we have is like decades and decades old.

1:37:44.560 --> 1:37:48.120
<v Speaker 3>So that's what we've got. Okay, it's not it's not

1:37:48.240 --> 1:37:52.400
<v Speaker 3>satisfying all the bust. One thing important to note, as

1:37:52.479 --> 1:37:57.000
<v Speaker 3>we've mentioned so many times at this point, lupus across

1:37:57.080 --> 1:38:02.439
<v Speaker 3>the globe affects people assigned female at birth far more often,

1:38:03.320 --> 1:38:07.800
<v Speaker 3>and again, people with multiple X chromosomes are at significantly

1:38:07.880 --> 1:38:11.120
<v Speaker 3>higher risk than people with a single X chromosome in general,

1:38:11.920 --> 1:38:15.360
<v Speaker 3>and is usually diagnosed between the ages of fifteen to

1:38:15.400 --> 1:38:20.200
<v Speaker 3>forty four, which is what we generally consider reproductive age.

1:38:20.320 --> 1:38:23.719
<v Speaker 3>There are a lot of statistics, especially from the US,

1:38:23.840 --> 1:38:26.800
<v Speaker 3>where we stratify a lot of our health statistics by

1:38:26.880 --> 1:38:32.559
<v Speaker 3>racial and ethnic background, that show that both incidents, so

1:38:32.840 --> 1:38:36.160
<v Speaker 3>number of new cases diagnosed every year, as well as

1:38:36.280 --> 1:38:42.559
<v Speaker 3>overall prevalence has significant racial and ethnic disparities, with people

1:38:42.600 --> 1:38:47.120
<v Speaker 3>of color being substantially more likely to be diagnosed with

1:38:47.320 --> 1:38:51.400
<v Speaker 3>loopus as well as have increased risk of morbidity and

1:38:51.560 --> 1:38:56.320
<v Speaker 3>mortality from lupus. And what's really important to note about

1:38:56.360 --> 1:39:01.200
<v Speaker 3>this is that a these disparities exist, because that's important

1:39:01.240 --> 1:39:04.960
<v Speaker 3>to know, But pretty much none of the papers that

1:39:05.000 --> 1:39:07.040
<v Speaker 3>I read, except the couple that I'll link to that

1:39:07.080 --> 1:39:11.080
<v Speaker 3>we're specifically looking at these disparities, offer a lot of

1:39:11.160 --> 1:39:15.759
<v Speaker 3>explanation as to why these disparities exist. But it's almost

1:39:15.800 --> 1:39:20.000
<v Speaker 3>certainly not due to genetic differences, because we know that

1:39:20.200 --> 1:39:25.120
<v Speaker 3>race and ethnicity are not genetic basis groups, right, These

1:39:25.160 --> 1:39:29.240
<v Speaker 3>are social constructs. So I think it's very easy to

1:39:29.400 --> 1:39:31.679
<v Speaker 3>just leave it in a lot of these papers at

1:39:31.800 --> 1:39:34.559
<v Speaker 3>the incidence and severity of disease is higher in this

1:39:34.640 --> 1:39:37.920
<v Speaker 3>population than this population, and assume that that might be

1:39:37.960 --> 1:39:41.599
<v Speaker 3>based on some actual physiologic difference, but most likely it

1:39:41.680 --> 1:39:44.599
<v Speaker 3>is not, and it's based on a lot of really

1:39:44.640 --> 1:39:50.160
<v Speaker 3>complicated factors that contribute to our overall societal health disparities.

1:39:51.200 --> 1:39:52.520
<v Speaker 2>So that's important.

1:39:54.520 --> 1:39:59.840
<v Speaker 3>In addition, and this I really did not know until

1:40:00.120 --> 1:40:07.400
<v Speaker 3>searching this, the mortality attributed to lupus is actually very substantial.

1:40:08.200 --> 1:40:11.240
<v Speaker 3>I don't have great numbers on this, though. The World

1:40:11.280 --> 1:40:15.520
<v Speaker 3>Health Organization has some estimates on like age standardized mortality

1:40:15.600 --> 1:40:19.679
<v Speaker 3>rates across the globe, but they're, you know, very rough estimates.

1:40:20.160 --> 1:40:23.800
<v Speaker 3>But lupus is often in many countries one of the

1:40:23.960 --> 1:40:27.479
<v Speaker 3>leading causes of death, like the top ten or top

1:40:27.560 --> 1:40:31.680
<v Speaker 3>twenty leading causes of death four females age fifteen to

1:40:31.720 --> 1:40:32.200
<v Speaker 3>forty four.

1:40:32.320 --> 1:40:32.639
<v Speaker 2>Whoa.

1:40:33.400 --> 1:40:40.960
<v Speaker 3>Yeah, and the probability of survival has increased significantly over

1:40:41.040 --> 1:40:44.800
<v Speaker 3>the years because of improvements in treatment, but we do

1:40:44.840 --> 1:40:49.320
<v Speaker 3>still see an overall increased risk of early mortality associated

1:40:49.360 --> 1:40:51.720
<v Speaker 3>with lupus, which is terrifying.

1:40:51.880 --> 1:40:59.480
<v Speaker 2>Mm hmm. So where are we going from here? Yeah?

1:41:00.120 --> 1:41:03.840
<v Speaker 3>You mentioned aarin that there's been a lot of momentum

1:41:03.840 --> 1:41:04.360
<v Speaker 3>and a lot of.

1:41:04.320 --> 1:41:05.280
<v Speaker 2>Movement, and there is.

1:41:06.760 --> 1:41:13.520
<v Speaker 3>Unfortunately, so far, it hasn't resulted in a ton of new.

1:41:13.320 --> 1:41:15.679
<v Speaker 2>Specific treatments for lupus.

1:41:17.120 --> 1:41:20.719
<v Speaker 3>While we have seen big changes in kind of using

1:41:21.479 --> 1:41:23.839
<v Speaker 3>medications that are maybe used for a lot of different

1:41:23.880 --> 1:41:27.200
<v Speaker 3>things and targeting them to loopus all of those different

1:41:27.240 --> 1:41:31.960
<v Speaker 3>medicines that are involved in amunosuppression or immunomodulation. One of

1:41:32.000 --> 1:41:35.120
<v Speaker 3>the big things I think that people are researching on

1:41:35.280 --> 1:41:39.360
<v Speaker 3>now for a lot of autoimmune diseases, including lupus, are

1:41:39.400 --> 1:41:43.720
<v Speaker 3>to try and get more specific, targeted treatments rather than

1:41:43.760 --> 1:41:47.800
<v Speaker 3>something that's going to blanket immunosuppress entirely and therefore leave

1:41:47.840 --> 1:41:53.240
<v Speaker 3>you at increased risk for infection. Okay, so there has

1:41:53.280 --> 1:41:56.519
<v Speaker 3>only been one new medication that's been approved specifically for

1:41:56.600 --> 1:41:59.440
<v Speaker 3>lupus in the last fifty years, and that's the biologic

1:41:59.479 --> 1:42:01.120
<v Speaker 3>that I mentioned earlier.

1:42:01.760 --> 1:42:05.240
<v Speaker 2>Belim mumab. I think I said it right this time.

1:42:06.600 --> 1:42:10.360
<v Speaker 3>But there are currently a whole host of other medications

1:42:10.360 --> 1:42:14.559
<v Speaker 3>and biologics undergoing clinical trials at like every various stage

1:42:14.560 --> 1:42:19.160
<v Speaker 3>of clinical trial. Many of them are these biologics that

1:42:19.240 --> 1:42:23.479
<v Speaker 3>target different aspects, but very specific aspects of our immune

1:42:23.479 --> 1:42:26.439
<v Speaker 3>system in the hopes that that might help.

1:42:26.360 --> 1:42:30.080
<v Speaker 2>At least some people with some types of lupus.

1:42:31.720 --> 1:42:35.240
<v Speaker 3>There have been some that are promising, but nothing that's

1:42:35.360 --> 1:42:39.639
<v Speaker 3>been you know, groundbreaking as of yet, and everything seems

1:42:39.640 --> 1:42:43.920
<v Speaker 3>to be fairly early in the trial periods. Yeah, and then,

1:42:44.000 --> 1:42:46.519
<v Speaker 3>like you mentioned, Aaron, there's also been so much work

1:42:46.520 --> 1:42:48.960
<v Speaker 3>being done to really try and understand a lot of

1:42:49.000 --> 1:42:52.559
<v Speaker 3>the genetic underpinnings of lupus, because not only is that

1:42:52.640 --> 1:42:57.400
<v Speaker 3>going to give us more potential targets for therapies, but

1:42:57.520 --> 1:43:02.320
<v Speaker 3>also maybe allow us to distinguish is this all one

1:43:02.720 --> 1:43:06.959
<v Speaker 3>disease or are there a lot of specific ones underneath

1:43:07.000 --> 1:43:07.839
<v Speaker 3>this big umbrella?

1:43:08.240 --> 1:43:10.559
<v Speaker 2>Right? Big question.

1:43:11.160 --> 1:43:14.599
<v Speaker 3>Yeah, it's a big question. But I think that's where

1:43:14.640 --> 1:43:20.680
<v Speaker 3>we'll go from here. So that's systemic lupus rith amatosis

1:43:21.160 --> 1:43:22.280
<v Speaker 3>aka lupus.

1:43:22.840 --> 1:43:25.160
<v Speaker 2>It bears repeating. What a huge topic.

1:43:25.920 --> 1:43:30.320
<v Speaker 3>Yeah, but hopefully hopefully everyone got at least something out

1:43:30.320 --> 1:43:30.519
<v Speaker 3>of this.

1:43:30.760 --> 1:43:34.200
<v Speaker 2>I know I did. I learned a lot. Yeah. Same absolutely,

1:43:35.280 --> 1:43:41.280
<v Speaker 2>And if you where you can learn more our sources,

1:43:41.479 --> 1:43:44.320
<v Speaker 2>I have several I'm going to shout out just a couple.

1:43:44.880 --> 1:43:47.800
<v Speaker 2>For the history of autoimmunity, I read a book called

1:43:47.880 --> 1:43:52.120
<v Speaker 2>Intolerant Bodies by Warwick Anderson and Ian McKay, and then

1:43:52.160 --> 1:43:54.719
<v Speaker 2>the history of lupus I got from several papers, including

1:43:54.800 --> 1:43:58.080
<v Speaker 2>one by Norman from twenty sixteen. I have a bunch

1:43:58.160 --> 1:44:00.840
<v Speaker 2>more papers, including one where I totally forgot to mention

1:44:01.479 --> 1:44:05.040
<v Speaker 2>that covers whether or not Jane Austen may have had lupus.

1:44:05.360 --> 1:44:08.719
<v Speaker 2>What did you also know that Beethoven may have had lupus?

1:44:09.040 --> 1:44:11.719
<v Speaker 3>I feel like Beethoven has had every disease that we've

1:44:11.720 --> 1:44:14.400
<v Speaker 3>covered on this podcast, like that comes up a lot.

1:44:14.520 --> 1:44:18.360
<v Speaker 2>He could be the first hand account for every single one.

1:44:20.040 --> 1:44:22.400
<v Speaker 2>That's funny. But yeah, I have a bunch more and

1:44:22.560 --> 1:44:23.240
<v Speaker 2>I'll post them.

1:44:23.880 --> 1:44:29.040
<v Speaker 3>I have, yeah, quite a number of papers for this episode. Unsurprisingly,

1:44:29.400 --> 1:44:32.040
<v Speaker 3>the two that I think cover just the general aspects

1:44:32.080 --> 1:44:35.200
<v Speaker 3>of the biology the best if you'd like to read

1:44:35.320 --> 1:44:38.439
<v Speaker 3>those are one from Annals of the Rheumatic Diseases in

1:44:38.520 --> 1:44:43.280
<v Speaker 3>twenty twenty one and another from the Lancet twenty nineteen.

1:44:44.000 --> 1:44:46.160
<v Speaker 3>Those two will be kind of at the top of

1:44:46.200 --> 1:44:47.960
<v Speaker 3>the list. And then I also wanted to give a

1:44:47.960 --> 1:44:50.760
<v Speaker 3>shout out to a book that was recommended by Sarah.

1:44:51.040 --> 1:44:54.200
<v Speaker 3>Sarah who provided our first hand account, and he's one

1:44:54.240 --> 1:44:57.400
<v Speaker 3>of our really good friends. She recommended this book, called

1:44:57.439 --> 1:45:01.080
<v Speaker 3>the Lupus Encyclopedia, A Comprehensive Guide for p and families.

1:45:01.600 --> 1:45:05.479
<v Speaker 3>It is a massive tome, but It's also available free

1:45:05.520 --> 1:45:09.840
<v Speaker 3>online and I found it really useful for plain language

1:45:10.160 --> 1:45:14.400
<v Speaker 3>descriptions that are very accurate and actually easy to understand

1:45:14.400 --> 1:45:18.439
<v Speaker 3>because some of these papers they're rough. We will post

1:45:18.640 --> 1:45:21.479
<v Speaker 3>all of our sources from this episode and every one

1:45:21.560 --> 1:45:23.760
<v Speaker 3>of all episodes on our website this podcast will Kill

1:45:23.760 --> 1:45:26.680
<v Speaker 3>You dot com under the episodes tap. We say that

1:45:26.760 --> 1:45:30.400
<v Speaker 3>every time. I hope that you read them too.

1:45:32.800 --> 1:45:36.559
<v Speaker 2>Well. A huge, huge thank you again to Sarah for

1:45:37.360 --> 1:45:40.000
<v Speaker 2>taking the time to share your story and being willing

1:45:40.040 --> 1:45:42.920
<v Speaker 2>to share your story, and for chatting with us.

1:45:43.040 --> 1:45:45.679
<v Speaker 3>And making like air hearts but no one can see them. Yeah,

1:45:45.720 --> 1:45:50.080
<v Speaker 3>air hearts their hearts. Thank you also to Bloodmobile for

1:45:50.160 --> 1:45:53.760
<v Speaker 3>providing the music for this episode and all of our episodes.

1:45:53.320 --> 1:45:56.960
<v Speaker 2>And thank you to Leana Squalacci for the audio mixing.

1:45:57.040 --> 1:45:59.759
<v Speaker 2>We love it, We love it. Thank you to Exactly

1:45:59.840 --> 1:46:03.000
<v Speaker 2>Right Network, and thank you to you listeners. We hope

1:46:03.000 --> 1:46:10.880
<v Speaker 2>you liked this massive, really long, really action packed episode.

1:46:11.840 --> 1:46:12.639
<v Speaker 2>I hope so too.

1:46:13.240 --> 1:46:16.360
<v Speaker 3>And a special shout out to our patrons as always,

1:46:16.360 --> 1:46:18.439
<v Speaker 3>thank you so much for your support.

1:46:18.600 --> 1:46:23.759
<v Speaker 2>It means the world, It does all right. Well, until

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<v Speaker 2>next time, wash your hands, you filthy animals.