Fig. 2:

Linear regression of normalized mitochondrial complex activities in the prefrontal cortex with age in male and female baboons. Regression analysis was conducted on either combined male and female data or separated by sex. Plots of citrate synthase (CS)-normalized mitochondrial respiration due to complex I: C-I/CS (A), complex II: C-II/CS (B), complex III: C-III/CS (C), and complex IV: C-IV/CS (D) versus donor age when male and female data were combined (n=60). Linear regression of C-I/CS (E), C-II/CS (F), C-III/CS (G), and C-IV/CS (H) with age, showing separate analysis for males and females.