conventional histochemical studies were performed for the mitochondrial respiratory enzymes cytochrome c oxidase ( co ; ec 1.9.3.1 ) succinate dehydrogenase ( sdh ; ec 1.3.99.1 ) , and nadh-dehydrogenase ( nadh-dh ; ec 1.6.99.3 ) .
C0038615
succinate dehydrogenase
C0283592
sdh