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New Study Reveals Alzheimer's Progresses in Two Distinct Phases

Researchers identify an early silent phase of brain damage preceding symptomatic cognitive decline in Alzheimer's disease.

Overview

  • The study suggests Alzheimer's disease initially damages the brain in a slow, silent phase before symptoms appear, followed by rapid degeneration.
  • Advanced brain mapping tools revealed early damage to inhibitory neurons, which may trigger neural issues underlying Alzheimer's.
  • The second phase is characterized by rapid accumulation of protein plaques and tangles, leading to severe cognitive decline.
  • Research involved genetic analysis of brain cells from 84 deceased donors, providing a detailed timeline of disease progression.
  • The findings could lead to earlier diagnosis and treatment, altering the current understanding of Alzheimer's impact on the brain.