title: Selenium metabolism and supplementation in patients with muscular dystrophy.
abstract: We studied selenium metabolism in patients with Duchenne muscular dystrophy and in contrast to previous reports found no significant abnormalities in these patients. Supplementation of muscular dystrophy patients and control subjects with sodium selenite (1 mg selenium/day) induced a variable rise in the activity of the selenium-dependent enzyme glutathione peroxidase in plasma and red cells, but no significant change in muscle glutathione peroxidase activities. There was no effect of selenium supplementation on disease activity in the patients with muscular dystrophy. Thiobarbituric acid-reacting substances (an index of free radical-mediated lipid peroxidation) were elevated in the muscle of patients with Duchenne muscular dystrophy in contrast to patients with other forms of muscular dystrophy and control subjects. This elevation was unaffected by selenium supplementation.
authors.affiliation: Muscle Research Centre, Department of Medicine, University of Liverpool, UK.
authors.forename: M J
authors.initials: MJ
authors.lastname: Jackson
authors.forename: J
authors.initials: J
authors.lastname: Coakley
authors.forename: M
authors.initials: M
authors.lastname: Stokes
authors.forename: R H
authors.initials: RH
authors.lastname: Edwards
authors.forename: O
authors.initials: O
authors.lastname: Oster
mesh_terms: D002986:Clinical Trials as Topic; D005979:Glutathione Peroxidase / Q000097:blood / Q000378:metabolism; D006801:Humans; D009136:Muscular Dystrophies / Q000188:drug therapy / Q000201:enzymology / Q000378:metabolism*; D012643:Selenium / Q000378:metabolism* / Q000627:therapeutic use*; D018038:Sodium Selenite
chemical_list: D005979:Glutathione Peroxidase; D012643:Selenium; D018038:Sodium Selenite