Fig. 3. Mitochondrial specific activities of electron transport chain (ETC) enzymes in primary P5 and senescent P25 and P35 fibroblasts.
Enzyme activities of (A) complex I-III, (B) complex II-III, (C) complex IV, and (D) citrate synthase (CS) in young (P5) and senescent (P25 and P35) confluent cells. ***p < 0.001 and ****p < 0.0001 indicate significant difference from control P5 values (n = 6).
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