very fair question
@Gingergrrl, but here is my answer.
Thank you for your detailed answer and I really am trying to understand all of this! I think someone like me could end up in a study like Dr. Scheibenbogen's (in theory, I do not live in Germany!) and could confound the results which would not be helpful for me, for the study, or for anyone.
Autoantibodies are only taken as likely to be important in an illness if they are the sort of antibodies that correlate with that particular illness. That statistical correlation is the way of having confidence that they are not just there by chance.
How would someone figure out the statistical correlation that you mention? My doctors (and these are really solid doctors: an Endo who treats my Hashimoto's, an MCAS specialist who is an immunologist, and an ME/CFS specialist) all feel that my autoantibodies, including the Cell Trend autoantibodies, are extremely relevant in my case. But (other than Hashimoto's) these autoantibodies do not correlate with a specific illness at this point in science. The beta-adrenergic Abs correlate with POTS (which was confirmed for me on TTT at Stanford and every doc I have ever seen agrees that I have POTS). The calcium channel autoantibody correlates with LEMS and small cell lung cancer (but I do not have either disease) and the anti GAD65 Ab correlates with diabetes (which I do not have) and Stiff Person Syndrome (which I do not have). And the anti-muscarinic Abs, I am told, can correlate with ME/CFS (which I believe I do not have) and with muscle weakness (which was profound for me prior to IVIG & Rituximab).
It seems to me (and I'd love to hear your thoughts on this) that autoantibodies exist BEFORE they are officially correlated with a specific disease by scientists. Someone (and it might have been you!) once told me that Dr. Angela Vincent discovers thousands of new autoantibodies every year that do not yet correlate with any specific disease (but they may in the future). So at this point in time, my two Hashi's autoantibodies link to Hashimoto's Disease b/c prior to being put on Armour Thyroid both were VERY high, my TSH was high, my T3 & T4 were off, etc, and I had the symptoms of hypothyroidism (in 2013).
But the other Auto-abs are less clear. I had many symptoms matching with LEMS and SPS (stiff person syndrome) prior to treatment but absolutely did not meet criteria for either disease, just like I do not meet criteria for ME/CFS. Without question I meet full criteria for POTS (but now even my POTS is greatly improved w/my treatments). And my positive ANA (1:160, speckled pattern) is probably a reflection of all of this "Autoimmune chaos" as my doctors call it. So wouldn't it be logical that even though my illness has no official name (besides POTS & MCAS) that it is autoantibody driven and some day science will give it a label? It is maddening not to have a name, and this will sound weird, but there would be some comfort to knowing it is ME/CFS and I can stop searching.
For other illnesses like hypothyroidism the correlation is more blurred - about 25-30% of normal people may have thyroid antibodies.
I agree but in my case, I really do have Hashimoto's per all doctors who've seen me.
But if the antibody does not fit the illness it is ignored because there is no correlation to the wrong sort of illness.
I am not sure what you mean re: "no correlation to the wrong sort of illness" and keep re-reading that sentence! I think I said it all above but I don't understand why autoantibodies would be ignored in someone who is extremely ill and symptomatic like I was (pre-treatment) vs. investigating them further and doing appropriate autoimmune treatments?
For the antibodies Dr Scheibenbogen has been studying, if I remember rightly the highest levels were actually in normal people - or at least there was no obvious difference between top levels in normals and ME. And these are antibodies that do not seem to correlate tightly with any particular illness - they are blurry ones. They seemed to be slightly more common in ME but there have been reports of them being slightly more common in other things and not much has come of it.
I actually do not know the statistics on this so I can't comment. But I think the autoantibodies (at this point in time) that do not correlate tightly with any particular illness and are "blurry" as you say, may still be extremely important. I believe without question they are important in my case, and I believe they may also be important in some cases of ME/CFS if there turns out to be an autoimmune subgroup (which I still think there might be and I think Dr. Scheibenbogen does, too).
We have talked on the forums for a good few years and my impress is that your illness is not just ME. It certainly sounds as if you have an autoimmune disease.
I wasn't sure what you thought and for some reason, it is a relief to hear you say that I have an autoimmune disease. I'm assuming this is b/c I have 11 autoantibodies (possibly more) regardless if they fully match w/a known illness (like lupus or LEMS). And I assume also b/c I have done so incredibly well w/two autoimmune treatments: high dose IVIG & Rituximab. Right now I am taking care of my dog who just had back surgery (I post about this on the other board and won't get off track here) but aside from how incredibly difficult this is physically and emotionally, I am currently the healthiest I've been since 2013, and without question since 2015 where I was near death from anaphylaxis in hospital.
I was on a steady decline for 4+ years (my illness was never relapsing-remitting) until I did these treatments. I don't know what happens when I stop the treatments but I know at present, I can breathe, I can walk without wheelchair (short distances only), and my MCAS/allergic reactions remain in remission. So I am happy when you validate I have an autoimmune disease but I wish I knew which one (besides Hashimoto's). I have been given the label "Autoimmune POTS" by several docs which I agree is accurate. But no doctor can explain the level of muscle weakness and breathing weakness (pre-treatment) that is now gone, b/c it exceeds any definition of POTS alone. The only explanation is that it is due to some of the autoantibodies (anti-muscarinic, calcium channel, and anti GAD65). Does this make sense? I find it so hard to believe there are not others in my situation and I can't be the only person on earth with this particular version of an illness!
Not being able to breathe is not a feature of ME as far as I know.
I agree and it was one of the main reasons that I never felt I matched with ME (besides that I have no cognitive/mental fatigue, brain fog, or PEM). But I had extreme muscle fatigue and weakness pre-treatment and my daily life was that of an invalid who could not open a water bottle, turn on a shower faucet, or open their own front door.
And my understanding is that you have other autoantibodies that might be more relevant.
Which ones do you think are relevant in my case? My feeling was that you completely discount the autoantibodies that Dr. Scheibenbogen is studying (Cell Trend) but I am positive for 7 of 9 of them and I think they are very relevant and important (even if she ultimately cannot make a connection to ME/CFS and she discovers a new illness). I hate to see them discounted and many doctors believe in them. Dr. Jill Schofield (who is not my doctor but I had several e-mails w/her and watched her present about this topic for Dysautonomia International) also feels these autoantibodies are very relevant to the emerging field of "Autoimmune Dysautonomia". She practices in Colorado and uses treatments similar to mine for autoimmune dysautonomia (which matches my experience exactly).