Linked Life Data

10355851

Source:http://linkedlifedata.com/resource/pubmed/id/10355851

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-7-15
pubmed:abstractText
The effect of ornithine alpha-ketoglutarate (OKG) on cytochrome P-450 enzyme activities was studied in a well-defined model of injury (burn followed by fasting then subsequent hypocaloric diet) administered to young rats for 3 d. Hepatic microsomes were prepared by ultracentrifugation and levels of cytochromes P-450 were determined spectrophotometrically. The activities of ethoxy-resorufin-O-deethylase (EROD), benzyloxy-resorufin-O-dealkylase (BROD), and erythromycin demethylase were measured as markers of P-450 1A, 2A, and 3A isotypes respectively. The level of total hepatic microsomal proteins (8 mg/mL) remained constant. The level of cytochrome P-450 (1.14+/-0.08 nmol/mg microsomal proteins) was decreased by a hypocaloric diet (23%, P = 0.003) and burn further enhanced this phenomenon (15%, P = 0.03). Both healthy and burned rats receiving OKG showed the same level of cytochrome P-450 as the rats fed ad libitum. OKG supplementation counteracted the enhancement (40%) of EROD activity induced by hypocaloric diet but did not influence BROD and erythromycin demethylase activities. OKG sustained cytochrome P-450 levels in rats fed a hypocaloric diet, even after burning. These findings indicate that OKG may favor drug metabolism in this injured population.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0899-9007
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
379-83
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Ornithine alpha-ketoglutarate counteracts the decrease of liver cytochrome P-450 content in burned rats.
pubmed:affiliation
Département de Pharmacologie, Hôpital Cochin, Paris, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't