Mitochondrial myopathies.

TitleMitochondrial myopathies.
Publication TypeJournal Article
Year of Publication1987
AuthorsDiMauro, S, Bonilla, E, Zeviani, M, Servidei, S, DeVivo, DC, Schon, EA
JournalJ Inherit Metab Dis
Volume10 Suppl 1
Date Published1987
KeywordsAdenosine Triphosphatases, Biological Transport, Carnitine, Citric Acid Cycle, Cytochrome-c Oxidase Deficiency, Electron Transport Complex II, Electron Transport Complex III, Humans, Metabolism, Inborn Errors, Mitochondria, Muscle, Multienzyme Complexes, NAD(P)H Dehydrogenase (Quinone), Oxidative Phosphorylation, Oxidoreductases, Oxygen Consumption, Pyruvates, Pyruvic Acid, Quinone Reductases, Succinate Dehydrogenase

The mitochondrial myopathies or encephalomyopathies with known biochemical defects can be divided into 5 groups: (1) defects of mitochondrial transport, such as CPT deficiency or carnitine deficiencies; (2) defects of substrate utilization, such as PDHC deficiency or defects of beta-oxidation; (3) defects of the Krebs cycle, such as fumarase deficiency; (4) defects of oxidation-phosphorylation coupling, such as Luft disease, and (5) defects of the respiratory chain. These disorders are reviewed, with particular emphasis on the defects of the respiratory chain. Defects of complex I, III and IV show remarkable clinical and biochemical heterogeneity. All 3 complexes contain some subunits encoded by mtDNA and others encoded by nuclear DNA. At least some of the cytoplasmically made subunits appear to be tissue specific and may be developmentally regulated, thus explaining the genetic heterogeneity of these disorders.

Alternate JournalJ. Inherit. Metab. Dis.
Citation Key10.1007/bf01812852
PubMed ID2824920
Grant ListNS 11766 / NS / NINDS NIH HHS / United States