Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-5-21
pubmed:abstractText
Previous investigations demonstrated that CYP2D16 was expressed at high levels in guinea pig adrenal microsomes. The studies presented here were done to determine whether adrenal metabolism of bufuralol (BUF), a model CYP2D substrate, was similar to that in the liver. Guinea pig adrenal microsomes converted BUF to 1'-hydroxybufuralol (1'-OH-BUF) as the major metabolite and smaller amounts of a compound identified as 6-hydroxybufuralol (6-OH-BUF). In contrast, 6-OH-BUF was the major product formed by hepatic microsomal preparations. The apparent Km values were similar for 1'-OH-BUF and 6-OH-BUF production in each tissue. Quinidine, a selective CYP2D inhibitor, decreased the production of both BUF metabolites equally in liver and adrenal microsomes. Cortisol also caused equivalent decreases in the rates of 1'-OH-BUF and 6-OH-BUF formation by adrenal microsomes, but had no effect on hepatic BUF metabolism. Although both BUF metabolites may be produced by CYP2D16, unknown factors appear to effect some differences in the catalytic characteristics of BUF metabolism in adrenal and liver. The large amount of 6-OH-BUF produced distinguishes BUF metabolism in guinea pigs from that in other species previously studied.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0031-7012
pubmed:author
pubmed:copyrightInfo
Copyright 2001 S. Karger AG, Basel
pubmed:issnType
Print
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
229-33
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Bufuralol metabolism by guinea pig adrenal and hepatic microsomes.
pubmed:affiliation
Albany College of Pharmacy, Albany, NY 12208, USA. colbyh@acp-edu
pubmed:publicationType
Journal Article