Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-4-20
pubmed:abstractText
Our aim was to determine whether oestrogen administered to ovariectomized rats in a manner which stimulates the release of LHRH also stimulates the synthesis of LHRH mRNA. Adult female Wistar rats were ovariectomized under halothane anaesthesia between 09.00 and 11.00 h of dioestrus, immediately injected with either oil or 10 micrograms oestradiol benzoate (OB) and then killed by cervical dislocation between 16.00 and 17.00 h of the next day (presumptive pro-oestrus). In-situ hybridization carried out with a 30 mer, 32P-labelled, oligonucleotide probe complementary to LHRH mRNA showed that the concentrations of LHRH mRNA in perikarya in the medial preoptic area, diagonal band and medial septum were significantly greater in OB-compared with oil-treated rats. Plasma LH concentrations were significantly increased in three out of four of the OB-treated rats. These results show for the first time that as well as stimulating LHRH and LH release, oestrogen positive feedback also stimulates the synthesis of LHRH mRNA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-0795
pubmed:author
pubmed:issnType
Print
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
285-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Oestrogen positive feedback stimulates the synthesis of LHRH mRNA in neurones of the rostral diencephalon of the rat.
pubmed:affiliation
MRC Brain Metabolism Unit, University Department of Pharmacology, Edinburgh.
pubmed:publicationType
Journal Article