| Phenotype details |
7m10d-died; reduced foetal movements, spontaneous delivery, cyanosis, no spontaneous respiration with Apgar score of 6/6, required ventilation throughout his life, progressive cardiac hypertrophy; MRI-brain cerebral, cerebellar and brain stem atrophy, simplified gyral pattern in the frontal lobes, haemorrhage from bilateral lateral ventricles; CSF lactate elevated (3.4 mM). Low oxygen consumption rate in skin fibroblasts but activities of CI, CII, CII+III, CIII and CIV were normal |