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Human Body & Health

Why does protein aggregate formation increase in neurons affected by age-related lysosomal dysfunction?

A)Decreased transcription factor activity
B)Enhanced mitochondrial ATP production
C)Increased ubiquitin proteasome degradation
D)Impaired autophagy-mediated protein clearance

💡 Explanation

Lysosomal dysfunction reduces the efficiency of autophagy, the main mechanism for clearing damaged proteins; because autophagy cannot effectively remove misfolded proteins, aggregation increases. Therefore, impaired clearance is the correct answer, rather than increased degradation via other mechanisms.

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