Maximal electron flux in individual electron transport complexes in mitochondria (left) and from complex I to complex III using glutamate as a substrate and complex II to complex III using succinate as a substrate (right) in apoA1−/− mice relative to WT mice. Values are means ± SDs; n = 4 (apoA1−/−) or 5 (WT). *Different from WT, P < 0.05. apoA1−/−, apoA1 null; CI, complex 1; CII, complex II; CIII, complex III; NCR, NADH-cytochrome C reductase; SCR, succinate-cytochrome C reductase; WT, wild-type.