The KEGG pathway “oxidative phosphorylation” (3.17-fold
enriched, p = 5.5 × 10−7) overlaid with microarray data
- blue highlight identifies genes showing significantly increased expression in
association with physical activity and decreased expression in Aging or AD.
Significant genes included approximately 30% of the genes encoding mitochondrial
complex I (NADH:ubiquinone oxidoreductase) (NDUFA1, NDUFA7, NDUFA8, NDUFA9,
NDUFAF5, NDUFB1,NDUFB8, NDUFB9, NDUFS1, NDUFS3, NDUFS5, NDUFV2 and NDUFV3)
approximately 35% of the genes encoding Complex IV (cytochrome C
oxidase)(subunits COX4l1, COX6A1, COX6C, COX7B, COX7A2, COX8A and COX11) and
Complex V (ATP synthase)(ATP5A1, ATP5C1, ATP5O, ATP5G1, ATP5L, ATP51), as well
as 2 components (SLC25A27, SLC25A14) of the uncoupling protein. No genes in the
pathway showed decreased expression in association with physical activity.