state-3 ( i.e . adp-stimulated ) rates of o ( 2 ) uptake with palmitoylcarnitine , palmitoyl-coa plus carnitine , pyruvate plus malonate plus carnitine and octanoate as respiratory substrate were all diminished in heart mitochondria isolated from senescent ( 24-month-old ) rats compared with mitochondria from young adults ( 6 months old ) .
C0030242
palmitoylcarnitine
C0007258
carnitine