First study to suggest that the immune system may protect against Alzheimer's changes in humans

Recent work in mice suggested that the immune system is involved in removing beta-amyloid, the main Alzheimer's-causing substance in the brain. Researchers have now shown for the first time that this may apply in humans.
Leukocyte ccr2 expression is associated with mini-mental state examination (MMSE) score in older adults. Rejuvenation Research 2012

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