Linked Life Data

6276802

Source:http://linkedlifedata.com/resource/pubmed/id/6276802

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1982-4-12
pubmed:abstractText
We examined the effects and mechanisms of action of ACTH and ACTH fragments on gonadotropin secretion in immature rats. ACTH administered by daily injection or continuous infusion (osmotic minipumps) attenuated the postcastration rise in serum LH. Pituitary LH concentration was either unchanged or increased in ACTH-treated rats and pituitary sensitivity to gonadotropin-releasing hormone (GnRH) was reduced by ACTH treatment. A fragment of ACTH (ACTH 4-10), which is less steroidogenic, did not alter levels of serum LH, and ACTH did not reduce LH secretion in adrenalectomized castrates. Serum and pituitary concentrations of prolactin were normal in ACTH-treated animals. These studies demonstrate that the suppression of gonadotropin secretion by ACTH is mediated by the adrenal gland. This mechanism causes a decreased pituitary sensitivity to GnRH, but LH synthesis does not appear to be affected. Prolactin does not play a role in this mechanism.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0028-3835
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
20-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Influence of adrenocorticotropin and adrenalectomy on gonadotropin secretion in immature rats.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.