Alzheimer's disease (AD) is the most common form of dementia, a complex neurodegenerative brain disorder characterized by the progressive impairment of cognitive functions, particularly memory, thinking, language, mood, and behavioral issues.

AD is biologically defined by the presence of β-amyloid (Abeta) -containing plaques and tau-containing neurofibrillary tangles. Abeta plaques are formed by the aggregation of beta-amyloid peptides, which are fragments of a larger protein called amyloid precursor protein (APP).

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