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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1981-10-25
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pubmed:abstractText |
The metabolism of 4-androstene-3,17-dione by liver microsomes from juvenile rainbow trout, Salmo gairdnerii, was studied in vitro. Hypophysectomy of the fish significantly increased mean hepatic 17-hydroxysteroid oxidoreductase activity when compared with that from sham-operated fish but none of the other enzyme activities investigated were affected. Administration of oestradiol-17 beta resulted in a significant decrease in mean hepatic 6 beta-hydroxylase activity and total cytochrome P-450 content but had no effect on the 16-hydroxylase or on the reductive metabolism of androstenedione. The effect of oestradiol-17 beta on hepatic 6 beta-hydroxylase activity was as pronounced after hypophysectomy as after sham-operation indicating that these effects of oestradiol-17 beta are mainly direct and independent of the pituitary gland. The results indicate that hypophysial hormone(s) as well as oestradiol-17 betal play a role in the regulation of hepatic steroid metabolism in trout.
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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 |
Jul
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pubmed:issn |
0022-0795
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
90
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
103-12
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6943269-17-Hydroxysteroid Dehydrogenases,
pubmed-meshheading:6943269-Androstenedione,
pubmed-meshheading:6943269-Animals,
pubmed-meshheading:6943269-Cytochrome P-450 Enzyme System,
pubmed-meshheading:6943269-Estradiol,
pubmed-meshheading:6943269-Hypophysectomy,
pubmed-meshheading:6943269-Microsomes, Liver,
pubmed-meshheading:6943269-Salmonidae,
pubmed-meshheading:6943269-Trout
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pubmed:year |
1981
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pubmed:articleTitle |
In-vitro metabolism of 4-androstene-3,17-dione by hepatic microsomes from the rainbow trout (Salmo gairdnerii): effects of hypophysectomy and oestradiol-17 beta.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|