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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-7-17
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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.
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pubmed:language |
jpn
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0300-9165
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
43
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
281-8
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pubmed:dateRevised |
2011-7-29
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pubmed:meshHeading |
pubmed-meshheading:2045697-Angiotensin II,
pubmed-meshheading:2045697-Animals,
pubmed-meshheading:2045697-Estrogens,
pubmed-meshheading:2045697-Female,
pubmed-meshheading:2045697-Iliac Artery,
pubmed-meshheading:2045697-Muscle, Smooth, Vascular,
pubmed-meshheading:2045697-Muscle Contraction,
pubmed-meshheading:2045697-Nitric Oxide,
pubmed-meshheading:2045697-Progesterone,
pubmed-meshheading:2045697-Rabbits
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pubmed:year |
1991
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pubmed:articleTitle |
[Influence of estrogen and progesterone on the vascular response to angiotensin-II in non-pregnant rabbit vessels--intact or denuded endothelium].
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pubmed:affiliation |
Department of Obstetrics and Gynecology, Osaka City University School of Medicine.
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pubmed:publicationType |
Journal Article,
In Vitro,
English Abstract
|