an isolated defect of cytochrome c oxidase ( cox ) activity was found in brain ( decrease of activity to 15 to 39 % of the normal mean ) , muscle ( 9 to 20 % ) , kidney ( 1 to 67 % ) , and in the 1 available heart ( 4 % ) from a patient with cardiopathy .
C0018787
heart
C0018799
cardiopathy