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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1989-5-26
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pubmed:abstractText |
The aim of this study was to evaluate the effects of rat atrial-peptide type II (rAP-II) on testicular steroidogenesis by isolated adult rat Leydig cells. rAP-II stimulates testosterone secretion. The maximal stimulatory effects of rAP-II on testosterone production occurred at the dose of 10(-11) M. At the same dose this peptide stimulates androstenedione and dehydroepiandrosterone-sulphate production, two important testosterone precursors of delta-4 and delta-5 steroidogenetic pathways, respectively. At higher doses, 10(-9) and 10(-7) M, the stimulatory effect of rAP-II on testosterone secretion is strongly declined, on androstenedione secretion is abolished, whereas on dehydroepiandrosterone-sulphate secretion remains unaffected. These data suggest that rAP-II at low doses exerts a stimulatory effect on the early steroidogenetic step by isolated adult rat Leydig cells. At higher doses this peptide seems to influence the testicular steroidogenesis, probably exerting a limiting reaction step involving the 3-beta-OH-steroid-dehydrogenase activity.
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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/Androstenedione,
http://linkedlifedata.com/resource/pubmed/chemical/Atrial Natriuretic Factor,
http://linkedlifedata.com/resource/pubmed/chemical/Dehydroepiandrosterone,
http://linkedlifedata.com/resource/pubmed/chemical/Dehydroepiandrosterone Sulfate,
http://linkedlifedata.com/resource/pubmed/chemical/Testosterone,
http://linkedlifedata.com/resource/pubmed/chemical/atrial natriuretic peptide, rat
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pubmed:status |
MEDLINE
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pubmed:issn |
0148-5016
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
181-7
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2977538-Androstenedione,
pubmed-meshheading:2977538-Animals,
pubmed-meshheading:2977538-Atrial Natriuretic Factor,
pubmed-meshheading:2977538-Dehydroepiandrosterone,
pubmed-meshheading:2977538-Dehydroepiandrosterone Sulfate,
pubmed-meshheading:2977538-Dose-Response Relationship, Drug,
pubmed-meshheading:2977538-Leydig Cells,
pubmed-meshheading:2977538-Male,
pubmed-meshheading:2977538-Rats,
pubmed-meshheading:2977538-Rats, Inbred Strains,
pubmed-meshheading:2977538-Testosterone
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pubmed:year |
1988
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pubmed:articleTitle |
Effects of atrial natriuretic factor (ANF) on rat testicular steroidogenesis in vitro.
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pubmed:affiliation |
Cattedra di Patologia Medica III, Università di Padova, Italy.
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pubmed:publicationType |
Journal Article
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