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← Human Body & HealthIn Alzheimer's disease, which mechanism explains why extracellular plaques of amyloid-beta protein aggregates disrupt neuronal function?
A)Inhibition of neurotransmitter reuptake
B)Depletion of intracellular calcium stores
C)Impairment of axonal transport velocity
D)Induction of chronic inflammatory responses✓
💡 Explanation
Amyloid-beta aggregates trigger microglial activation, releasing cytokines that promote chronic neuroinflammation and synaptic dysfunction; this is the inflammatory cascade. Therefore, neuroinflammation is the primary disruptive mechanism, rather than direct effects on neurotransmitter reuptake or axonal transport because these are secondary consequences.
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