Innate Immune System
The brain relies exclusively on the innate immune system; the adaptive immune system is largely excluded. Alzheimer's disease is an innate immune reaction to infection. After trapping a pathogen, the immune system releases bleach-like oxid…
1 sources - 4 claims
The brain relies exclusively on the innate immune system; the adaptive immune system is largely excluded. Alzheimer's disease is an innate immune reaction to infection. After trapping a pathogen, the immune system releases bleach-like oxidizing chemicals, and the resulting neuroinflammation causes collateral damage to neurons. The adaptive immune system is excluded from the brain because its power and non-specificity would cause devastating collateral damage to the sensitive organ.