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Chronic Fatigue Syndrome - Newsweek (1990)
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== Immune system == *Mounting evidence was suggesting CFS is an [[Immune system]] disorder. *"The emerging hypothesis held that CFS was at root an immune disorder." Some unknown chemical or contagion damages the immune system. This would not be catastrophic, but then this enables viruses normally held in check to start "running amok in the body." Helper [[T cell]]s would then "start churning out chemicals called [[cytokines]] to instigate harsher assaults on the resident bugs. And the perpetual flood of cytokines would, in it self, cause many unpleasant symptoms." *Cytokines are known to cause illness and are made up of [[Interleukin]]. Interleukin 2 causes a syndrome resembling CFS. Blood samples provided by Cheney and Bell showed "the patients' average interleukin-2 level was 40 times that of healthy control subjects." *Dr. [[Nancy Klimas]] has found that "certain classes of [[Cytotoxic T cell|cytotoxic T cells]]--killers programmed to attack specific intruders--are either under- or overactive." Neither Cheney nor Bell's or Klimas' findings are unique to CFS, but researchers are optimistic about developing a general profile. *Not only were there immune system findings, "scientists have linked CFS to specific [[neurological]] problems as well. People with CFS perform poorly on certain cognitive tests, notes Curt Sandman, a research psychologist at the University of California, Irvine, and their problems are quite different from those associated with [[depression]] (box)."
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