Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-6-1
pubmed:abstractText
Ubiquinol is an endogenously synthesized lipid-soluble antioxidant. Regeneration of ubiquinol from the oxidized form is essential to the maintenance of its antioxidant function. We demonstrated that lipoamide dehydrogenase can reduce ubiquinone to ubiquinol. Zinc increased the rate of the NADPH-dependent reduction more than 10-fold. The concentration ubiquinone resulting in the half-maximal rate of reduction was approximately 5 microM in the presence and 4 microM in the absence of zinc. These data may explain how ubiquinone is reduced to the active antioxidant ubiquinol, which plays such an important role in protecting against oxidative stress and lipid peroxidation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
448
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
190-2
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Ubiquinone is reduced by lipoamide dehydrogenase and this reaction is potently stimulated by zinc.
pubmed:affiliation
Department of Immunology, Microbiology, Pathology and Infectious Diseases, Karolinska Institutet, Huddinge University Hospital, Sweden. jerker.olsson@pathlab.hs.sll.se
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't