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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
19
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pubmed:dateCreated |
1989-11-28
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pubmed:abstractText |
The effects of streptozotocin-induced diabetes and fasting on hepatic cytochrome P-450 enzymes in sexually mature male rats were studied by immunochemical techniques and enzyme assays. The level of cytochrome P-450ac (an acetone/ethanol inducible form), 65 pmol/mg microsomal protein in control rats, increased 4- to 5-fold in diabetic rats and 3- and 5-fold in fasting rats. In contrast, P-450 UT-A (a male specific form) decreased drastically from 295 pmol/mg in the control group to about 10% of this value in diabetic rats and to 50% in fasting rats. P-450 PCN-E (a 16 alpha-cyanopregnenolone/dexamethasone inducible form), on the other hand, decreased from 151 pmol/mg to 38% in diabetic rats and increased 2-fold in fasting rats. These changes were also reflected in catalytic activities using N-nitrosodimethylamine, benzphetamine, and erythromycin as substrates. Slight changes in cytochromes P-450 UT-F, P-450 UT-I and P-450 PB-C were also observed under these conditions, but the biological significance is not known. These results suggest that different mechanisms exist for the regulation of the expression of cytochrome P-450 enzymes in diabetic and fasting rats.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0006-2952
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
38
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3179-84
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2818618-Animals,
pubmed-meshheading:2818618-Cytochrome P-450 Enzyme System,
pubmed-meshheading:2818618-Diabetes Mellitus, Experimental,
pubmed-meshheading:2818618-Fasting,
pubmed-meshheading:2818618-Liver,
pubmed-meshheading:2818618-Male,
pubmed-meshheading:2818618-RNA, Messenger,
pubmed-meshheading:2818618-Rats,
pubmed-meshheading:2818618-Rats, Inbred Strains
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pubmed:year |
1989
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pubmed:articleTitle |
Similarities and differences in the regulation of hepatic cytochrome P-450 enzymes by diabetes and fasting in male rats.
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pubmed:affiliation |
Department of Biochemistry, New Jersey Medical School, University of Medicine and Dentistry of New Jersey, Newark 07103.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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