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← Human Body & HealthA patient's neurons show increased levels of insoluble protein aggregates. If intracellular proteasomal degradation is impaired, which consequence follows?
A)Enhanced mitochondrial ATP production occurs
B)Increased unfolded protein refolding results
C)Reduced neuronal excitability is observed
D)Aggregate clearance via autophagy declines✓
💡 Explanation
If proteasomal degradation is impaired, then aggregate clearance via autophagy declines because the cell relies more heavily on autophagy to remove the aggregates. Therefore, autophagic flux decreases, rather than other compensatory cellular processes compensating for the proteasomal dysfunction.
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