Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-7-17
pubmed:abstractText
During pregnancy, vascular sensitivity to A-II is reduced and it was clarified that this refractoriness to A-II is due to a change in EDRF output in pregnant rabbits. The present study aimed at elucidating whether estrogen or progesterone is responsible for the augmentation of EDRF output. 17-OH-estradiol was administered (200 micrograms/kg/day) for 7 days to 8 non-pregnant rabbits, while progesterone was similarly administered (2,000 micrograms/kg/day) to 8 other non-pregnant rabbits. Twenty-four nonpregnant rabbits were employed as the controls. Common iliac arterial rings prepared from each group were compared for the isometric response to A-II. The arterial rings with intact endothelium prepared from the progesterone-treated group were found to have a smaller pD2 value and a smaller maximum response to A-II than the estrogen-treated group. On the other hand, no differences between the progesterone group and estradiol group were observed in these values for the endothelium-denuded arterial rings. These findings indicated that the augmentation of EDRF output during pregnancy is brought about by progesterone.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0300-9165
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
281-8
pubmed:dateRevised
2011-7-29
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
[Influence of estrogen and progesterone on the vascular response to angiotensin-II in non-pregnant rabbit vessels--intact or denuded endothelium].
pubmed:affiliation
Department of Obstetrics and Gynecology, Osaka City University School of Medicine.
pubmed:publicationType
Journal Article, In Vitro, English Abstract