rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
24
|
pubmed:dateCreated |
1988-1-21
|
pubmed:abstractText |
The imidazole N-substituted antifungal agents ketoconazole, miconazole and clotrimazole have been shown to be potent inhibitors of oxidative metabolism by both a phenobarbital-induced cytochrome P-450 (P-450b) and a 3-methylcholanthrene-induced cytochrome P-448-protein (P-450c) in reconstituted systems. All three compounds inhibited the cytochrome P-450b-dependent 7-pentoxyresorufin-O-dealkylase and the cytochrome P-450c-dependent 7-ethoxyresorufin-O-deethylase activities. When 7-benzyloxyresorufin and 7-ethoxycoumarin were employed as substrates with both cytochrome preparations, all three antifungal compounds exhibited selective inhibition of the cytochrome P-450b preparation; ketoconazole was always the weakest inhibitor. The three antifungal agents were also shown to elicit a type II difference spectral interaction with both isoenzymes, the magnitude of the spectral interaction being greater with the cytochrome P-450b preparation.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0006-2952
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
36
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
4277-81
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:3500726-7-Alkoxycoumarin O-Dealkylase,
pubmed-meshheading:3500726-Animals,
pubmed-meshheading:3500726-Clotrimazole,
pubmed-meshheading:3500726-Cytochrome P-450 CYP2B1,
pubmed-meshheading:3500726-Cytochrome P-450 Enzyme System,
pubmed-meshheading:3500726-Imidazoles,
pubmed-meshheading:3500726-Ketoconazole,
pubmed-meshheading:3500726-Male,
pubmed-meshheading:3500726-Miconazole,
pubmed-meshheading:3500726-Oxidoreductases,
pubmed-meshheading:3500726-Oxygenases,
pubmed-meshheading:3500726-Rats,
pubmed-meshheading:3500726-Spectrum Analysis
|
pubmed:year |
1987
|
pubmed:articleTitle |
Interactions of imidazole antifungal agents with purified cytochrome P-450 proteins.
|
pubmed:affiliation |
Department of Biochemistry, University of Surrey, Guildford, U.K.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|