Benign reversible muscle cytochrome c oxidase deficiency: A second case

M. Zeviani, P. Peterson, S. Servidei, E. Bonilla, S. DiMauro

Research output: Contribution to journalArticlepeer-review


A 6-week-old boy had generalized weakness, requiring assisted ventilation, and lactic acidosis. At 6 months, the lactic acidosis resolved, and the patient started to improve; assisted ventilation was discontinued at 15 months. Muscle biopsies at 4 and 11 months showed accumulation of mitochondria, lipid, and glycogen; cytochrome c oxidase (COX) activity was 11% of the lowest control in the first biopsy and 57% in the second. Immunocytochemistry and immunotitration showed presence of immunologically reactive enzyme protein in both biopsies. This case confirms a previous report of benign infantile myopathy due to reversible COX deficiency. The severe fibrosis in the second biopsy may explain the slower rate of clinical recovery in this child.

Original languageEnglish
Pages (from-to)64-67
Number of pages4
Issue number1
Publication statusPublished - 1987

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology
  • Neuroscience(all)


Dive into the research topics of 'Benign reversible muscle cytochrome c oxidase deficiency: A second case'. Together they form a unique fingerprint.

Cite this