Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1993-7-27
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0960-0760
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
555-61
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
In vivo stimulation of aldosterone biosynthesis by endothelin: loci of action and effects of doses and infusion rate.
pubmed:affiliation
Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't