Once thought only to attack neurons, immune cells turn out to be vital for central nervous system function. /…/ As early as the 1980s, researchers knew that immune cells infiltrated the CNS after injury, but such immune activity was viewed as something to be stymied, not encouraged. In fact, doctors used corticosteroids, which suppress immune-cell activity, to treat brain injuries for many decades.
read the full article.. www.the-scientist.com/?articles.view/articleNo/47289/title/Immune-System-Maintains-Brain-Health
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