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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1979-7-25
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pubmed:abstractText |
The effects of FSH, hCG, and PRL on the activity of 20 alpha-hydroxysteroid dehydrogenase (20 alpha-SDH) of separate ovarian components of hypophysectomized, diethylstilbestrol-treated rats were studied. Enzyme activity was found to reside mainly in granulosa cells. FSH induced an increase in enzyme activity. A preparation of FSH was purified by adsorbing its LH contamination on rat corpora lutea membranes and by further neutralizing LH traces with an antiserum to the beta-subunit of LH. This purified FSH retained the ability to induce a 6-fold increase in specific enzyme activity in granulosa cells of hypophysectomized, diethylstilbestrol-treated rats. Administration of hCG to rats treated with purified FSH, further enhanced 20 alpha-SDH activity in granulosa cells up to 11.5-fold above control. PRL, which is known to inhibit 20 alpha-SDH activity in regressing rat corpora lutea, suppressed the FSH-induced increase in enzyme activity in the granulosa cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/20-Hydroxysteroid Dehydrogenases,
http://linkedlifedata.com/resource/pubmed/chemical/Chorionic Gonadotropin,
http://linkedlifedata.com/resource/pubmed/chemical/Follicle Stimulating Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Prolactin
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0013-7227
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
104
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
711-4
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:436730-20-Hydroxysteroid Dehydrogenases,
pubmed-meshheading:436730-Animals,
pubmed-meshheading:436730-Chorionic Gonadotropin,
pubmed-meshheading:436730-Female,
pubmed-meshheading:436730-Follicle Stimulating Hormone,
pubmed-meshheading:436730-Granulosa Cells,
pubmed-meshheading:436730-Prolactin,
pubmed-meshheading:436730-Rats,
pubmed-meshheading:436730-Sexual Maturation
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pubmed:year |
1979
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pubmed:articleTitle |
Effect of human chorionic gonadotropin and prolactin on 20 alpha-hydroxysteroid dehydrogenase activity in granulosa cells of immature rat ovary.
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pubmed:publicationType |
Journal Article
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