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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1983-3-11
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pubmed:abstractText |
We have correlated the concentrations of serum LH, estradiol and progesterone with the activities of 2 ovarian steroid biosynthetic enzymes during the rat estrous cycle. Ovarian 3 beta-hydroxysteroid dehydrogenase isomerase (3-beta HSD) activity decreased from 29 +/- 6 nmol/mg protein/min (mean +/- SEM) in diestrus, to 7 +/- 0.4 nmol/mg protein/min in late proestrus (p less than 0.005), and subsequently increased to 36 +/- 9 nmol/mg protein/min in metestrus (p less than 0.01). Ovarian 17-hydroxylase (17-OH) activity decreased from early to late proestrus (3.3 +/- 0.2 vs 2.2 +/- 0.2 nmol/mg protein/min, p less than 0.0025), and subsequently increased to 3.9 +/- 0.2 in metestrus (p less than 0.001). Serum LH, estradiol and progesterone peaked during proestrus, and reached a nadir during estrus. We conclude that the activities of 3-beta HSD and 17-OH in the rat ovary vary markedly during the estrous cycle. These changes may underlie the pattern of steroid secretion characteristic of this process.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Estradiol,
http://linkedlifedata.com/resource/pubmed/chemical/Gonadal Steroid Hormones,
http://linkedlifedata.com/resource/pubmed/chemical/Luteinizing Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Progesterone,
http://linkedlifedata.com/resource/pubmed/chemical/Steroids
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0039-128X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
203-7
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:6891509-Animals,
pubmed-meshheading:6891509-Estradiol,
pubmed-meshheading:6891509-Estrus,
pubmed-meshheading:6891509-Female,
pubmed-meshheading:6891509-Gonadal Steroid Hormones,
pubmed-meshheading:6891509-Luteinizing Hormone,
pubmed-meshheading:6891509-Microsomes,
pubmed-meshheading:6891509-Ovary,
pubmed-meshheading:6891509-Pregnancy,
pubmed-meshheading:6891509-Progesterone,
pubmed-meshheading:6891509-Rats,
pubmed-meshheading:6891509-Rats, Inbred Strains,
pubmed-meshheading:6891509-Steroids
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pubmed:year |
1982
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pubmed:articleTitle |
Ovarian steroidogenic enzyme activities during the rat estrous cycle.
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pubmed:publicationType |
Journal Article
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