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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1993-7-27
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pubmed:abstractText |
Infusion of endothelin-1 (ET-1) into rats increased adrenal mitochondrial synthesis of aldosterone from deoxycorticosterone and the adrenal cytosolic content of aldosterone. The dose-response relationships for these last two effects of ET-1 were found to be biphasic with a maximum (corresponding to 80 to 200% increase) at 50 to 80 ng ET-1/kg/min, and were also dependent on the infusion rate. Plasma aldosterone levels were also increased in a similar ratio. Previous infusion of the converting enzyme inhibitor enalapril did not affect the ET-1-induced increase in steroidogenesis. Finally, pregnenolene production was also increased in incubations of mitochondria from treated rats. These results indicate that ET-1 augments aldosteronogenesis by increasing the early as well as the late pathway. These effects were independent of the formation of angiotensin II. Isolated glomerulosa cells responded to ET-1 increasing aldosterone production in a dose-related fashion. These results confirm a direct effect of ET-1 on the adrenal gland in vivo.
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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 |
Jun
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pubmed:issn |
0960-0760
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
45
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
555-61
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8518210-Aldosterone,
pubmed-meshheading:8518210-Angiotensin II,
pubmed-meshheading:8518210-Animals,
pubmed-meshheading:8518210-Cytosol,
pubmed-meshheading:8518210-Dose-Response Relationship, Drug,
pubmed-meshheading:8518210-Enalapril,
pubmed-meshheading:8518210-Endothelins,
pubmed-meshheading:8518210-Male,
pubmed-meshheading:8518210-Mitochondria,
pubmed-meshheading:8518210-Rats,
pubmed-meshheading:8518210-Zona Glomerulosa
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pubmed:year |
1993
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pubmed:articleTitle |
In vivo stimulation of aldosterone biosynthesis by endothelin: loci of action and effects of doses and infusion rate.
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pubmed:affiliation |
Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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