Guest guest Posted July 8, 2007 Report Share Posted July 8, 2007 > This makes that title much more appropriate than intended: it suggests that in autoimmunity, there's always a hidden germ involved, stoking the fire... Here's the main problem raised by that view. Why aren't there more known symptom-causing autoreactivities in the classical infectious diseases (especially chronic ones)? There is paroxysmal cold hemoglobinuria, which is not rare in syphilis, known to be autoimmune, and which often clears with syphilis treatment. Myasthenia gravis, pemphigus, Graves', various cytopenias, SLE (to some extent), and more have demonstrable AI pathogeneses. If varmints underlie the AI, why are they all so undetectable? Is there some common feature that makes them highly AI-genic and also poorly virulent? I used to think there was a similar problem with explaining why so many of these diseases that respond to abx anecdotally in our community, all have the common features of being poorly responsive (vs the classical bacterioses), often non-progressive (or nearly so) with some stark exceptions like MS and ALS, and culture-negative and otherwise hard to demonstrate as bacterioses. Etc. But actually bacterial stress states are a possible explanation for the seemingly unjustifiable coincidence of all these features. We know that stress state bacteria are hard to kill and can be culture-negative, but they also tend to be small (perhaps to increase their surface area : volume ratio for better nutriment uptake). Morita states that many or most starved cells in the environment are ultramicroscopic, ie around 200 nm across. This gives them a volume 125x smaller than that of a 1-um cell and a surface area 25x smaller. If these were visible (via immunostain) to a light microscope or a weak EM they would probably look like " debris " to medical microbiologists who generally reject the doctrine of bacterial pleomorphism. The only real sortie into this realm is the high-quality EM of the Wirostko/ papers, but it's hard to tell how they justify some of their identification of bacterial bodies (others of the bodies they imaged are so bizarre and novel as to be presumably exotrinsic, especially considering that they could be passaged in mice). It would be great to add yersinial arthritis to this, but as I mentioned it didn't work since I can't find any high-quality EM out there in which the possible viability / (ultramicro)cellularity / integrity of the yersinia-staining " debris " might be discerned. Quote Link to comment Share on other sites More sharing options...
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