Anyone have any information about autoimmune channelopathy?
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My teenage child has been tentatively diagnosed with what her specialists are refering to as autoimmune channelopaty. We have been told that her immune system is attcking the ion channels in her nerve cells.
We were also told that this is an area that isn't well known yet.
I have tried to find more information about this, but haven't found much. Does anyone have any they can share? Can this get worse, does it go away with tretament? ( she's receiing IVIG therapy) .
her symptoms rnage from tremors, myclonus, pain, nueritis, Raynaud's phenomenon ( not related to being cold or nervousness), etc.
0 likes, 11 replies
lynne69494 ericaheather
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ericaheather lynne69494
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we were told that it's an area that is just beginning to be studied, and it took one of he leaidng experts in the world in the area of nervous system health to come up with that tentative explaination.
Right now, she's on medication for pain, to control the myoclonus, etc., and the IVIG is supposed to help to moderate her immune system.
Oddly enough, all of our children have issues related to the brian/nervous syetm. Two have autism related disorders and one also has depression and complex chronic pain syndrome.
I hope your son is okay. No matter how old kids get, a mom always worries.
lynne69494 ericaheather
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mjaxx lynne69494
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In terms of the actual cause of autoimmunity, this isn't clear yet. We know that there are specific genes that put you at risk for certain autoimmune diseases, without which you are significantly less likely to develop the condition. However, there needs to be an environmental trigger for it to actually develop. For example, campylobacter infections that cause a 'stomach flu' can cause the immune system to attack the nervous system, leading to a condition called Guillain-Barre Syndrome.
One theory for this is called molecular mimicry, where proteins from a virus or bacterium are very similar in shape to natural proteins within the body and this causes the immune system to become confused after an infection. MS is thought to be caused this way, and there has been at least one experiment showing that a strain of mycobacteria that produces a protein similar to myelin basic protein can prompt the immune system to attack the body's own myelin and damage nerves.
Another theory is that immune regulation is impaired due to certain genes, so instead of instructing an autoantibody to destroy itself during maturation, it is allowed to replicate and become pathogenic. This is a possible mechanism for lupus, which attacks many different types of cells and body systems.
There's likely no one cause, and there are other theories that have been shown to apply to different kinds of autoimmune diseases. A combination of the right genetic environment, impaired regulation of antibodies, and the presence of infections or allergens that mimic natural proteins is likely required for most autoimmune diseases to develop, but once this does happen, the process is self-sustaining because the immune system has memory. Interestingly, a bone marrow transplant to replace the immune system has been shown to induce long-term remission by resetting immunity, but the condition can return if the right combination of causative factors occurs again.
lynne69494 mjaxx
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mjaxx ericaheather
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When the ion channels are damaged however, through autoimmune disease or other means, this affects muscle contraction. Any damage that causes the cell to become more permeable to calcium can increase contraction, resulting in cramps and myoclonus. If the calcium can't enter the cell properly, the muscle won't contract despite conscious effort to control it, leading to weakness or paralysis.
In your daughter's situation, because the condition is autoimmune it is her own immune system that is creating antibodies to attack the ion channels. She could experience a variety of different symptoms depending on where the damage is occuring as different cells produce different effects when excited by electrolytes.
Unfortunately, being autoimmune means that the condition may never go away because the immune system is very persistent. In the same way that a vaccination can create lasting immunity for years or even decades against a virus, an autoimmune illness can sustain itself for very long periods of time. It is possible for conditions like this to go into remission for months or years either by itself, or after treatment, and sometimes it will go away entirely if the immune system manages to correct itself, but this doesn't happen often. The lack of research into channelopathy certainly doesn't help here, because there isn't much evidence to show whether the condition tends to be life-long or reversible.
As with other autoimmune conditions, she may notice symptoms easing off at times, or flaring and becoming worse for a short period sometimes. The condition can also become more or less severe during other illnesses, with fluctuations in hormones, or due to diet and lifestyle factors.
Ultimately, it's important to realise that even if the condition stays with her for life, treatment can suppress the autoimmune process, and new advances are always on the horizon. She can still have a good life.
ericaheather mjaxx
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She's going t be getting her second session of iVIG therapy, and I am kepeng my fingers crossed that it will be successful.
She's had a ton of blood tests done, as well as sevral MRI's, x-rays ( to try and find the source of her pain) blood tests, lumbar punctures, genetic testng and more.
She's had genetic testing done by the Mayo clinic, and her doctors have spoken about her situation with experts in the field. \they've all been doing thier best to help her, and I know that means a lot to her.
fiona40655 ericaheather
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ericaheather fiona40655
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i'm hoping the IVIG therapy works for her. She's a really smart kid, does well in school, but the pain makes her tired and she finds it hard to concentrate . Her hands ar ealso held in an odd position, and they hurt when she writes, so she wears a brace to help her hold he rright one in a better positon when she writes.
ericaheather fiona40655
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She had more IVIG yesterday and today, so we are hoping it will help again. She's booked to have it once a month, and will be getting a full body MRI ( she's had 4 so far this year, but they mostly looked at specific organs) to make sure she doesn't have any primordial tumors ( i think I have that phrase right) thta could be causing her problems.
Her doctors are continuing to do whatever they can for he and one of them has been tyring to get in touch with more experts in the field ( maybe even Ms. Vincent) to see if they can make any further suggestions.
ericaheather
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our daughter has been receiving IV immuneglobulin therapy for a few months now. She gets it for two days one a month, but the effects only lasted about two weeks. Her doctors are going to try splitting the dose so she gets it every three weeks.
A specialist from the UK in the area of channelopathies has agreed to help advise her doctors here, which is very kind of them
If the IV Ig therapy doesn't help, then other therapies might be considered. The poor kids has been poked, prodded, had a lot of tetsing done, but still no many answers have been found.
We do know now that ts nto related to neoplastic syndorme.
The good news is taht her doctors are all awesome. She is receiving excellent care, and has been to see the pain team which was able to provide medication free pain releif ideas. All her doctors work so well together, and she couldn't get better and more kindly care.