Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1990-1-25
pubmed:abstractText
The noncompetitive antiestrogenic effects of RU 486 were examined using estradiol (E2)-treated ovariectomized monkeys given RU 486, progesterone (P), or both. The E2-induced luteinizing-hormone (LH) surge of control animals was abrogated by P and/or RU 486. Secretory transformation by P was inhibited by RU 486 coadministration. RU 486 alone (1 mg/kg) induced endometrial secretory transformation, but higher doses (5 mg/kg) inhibited proliferation and secretory activity. Thus in the presence of P, RU 486 is antagonistic but, in absence of P, exhibits endometrial progestational effects at low doses and an antiproliferative (antiestrogenic) effect at higher doses. These data encourage continued evaluation of RU 486 as a potential contraceptive agent acting at the pituitary and/or endometrial level.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0015-0282
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1055-60
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Noncompetitive antiestrogenic effect of RU 486 in blocking the estrogen-stimulated luteinizing hormone surge and the proliferative action of estradiol on endometrium in castrate monkeys.
pubmed:affiliation
Jones Institute for Reproductive Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, 23510.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't