Which of the following is the primary protein component of the extracellular neuritic plaques found in Alzheimer disease?
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Correct answer: Amyloid-beta peptide
Neuritic (senile) plaques are extracellular deposits primarily composed of Amyloid-beta (Aβ). Aβ is derived from the proteolytic cleavage of Amyloid Precursor Protein (APP).
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