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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1989-9-19
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pubmed:abstractText |
The efficacy of various doses of RU 486 in terminating pregnancy before and after the luteal-placental shift (LPS) in the long-tailed macaque (Macaca fascicularis) was assessed through sonographic examination and measurements of steroid hormones and their metabolites. Intramuscular injection of 1.0, 2.5, 12.5, or 25.0 mg/kg was administered either from gestational day (GD) 15-18 (Group 1; N = 11) or GD 23-26 (Group 2; N = 9). The timing of treatment was determined by the detection of the preovulatory estrogen peak via daily urinary estrone conjugate (E1C) measurements. In Group 1, a 90.9% pregnancy loss was observed (10/11); seven animals aborted during GD 15-20, two animals indicated early embryonic death with retained gestational sacs, one animal aborted on GD 56, and one pregnancy was maintained. In Group 2, an 88.9% pregnancy loss was observed (8/9); eight animals aborted between GD 26-29, and one pregnancy was unaffected. Hormone profiles appeared to fall secondarily to the loss of trophoblast function. These results indicate: (a) RU 486 was more effective after the LPS; and (b) the primary effect of RU 486 appeared to be at the level of the products of conception.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Abortifacient Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Abortifacient Agents, Steroidal,
http://linkedlifedata.com/resource/pubmed/chemical/Contraceptives, Postcoital,
http://linkedlifedata.com/resource/pubmed/chemical/Contraceptives, Postcoital...,
http://linkedlifedata.com/resource/pubmed/chemical/Estrenes,
http://linkedlifedata.com/resource/pubmed/chemical/Estrone,
http://linkedlifedata.com/resource/pubmed/chemical/Mifepristone,
http://linkedlifedata.com/resource/pubmed/chemical/Progesterone
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0010-7824
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
201-11
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:2758841-Abortifacient Agents,
pubmed-meshheading:2758841-Abortifacient Agents, Steroidal,
pubmed-meshheading:2758841-Animals,
pubmed-meshheading:2758841-Contraceptives, Postcoital,
pubmed-meshheading:2758841-Contraceptives, Postcoital, Synthetic,
pubmed-meshheading:2758841-Corpus Luteum,
pubmed-meshheading:2758841-Estrenes,
pubmed-meshheading:2758841-Estrone,
pubmed-meshheading:2758841-Female,
pubmed-meshheading:2758841-Macaca fascicularis,
pubmed-meshheading:2758841-Mifepristone,
pubmed-meshheading:2758841-Placenta,
pubmed-meshheading:2758841-Pregnancy,
pubmed-meshheading:2758841-Progesterone
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pubmed:year |
1989
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pubmed:articleTitle |
The effect of the anti-progestin RU 486 on early pregnancy in the long-tailed macaque (Macaca fascicularis).
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pubmed:affiliation |
Department of Veterinary Anatomy, University of Nairobi.
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pubmed:publicationType |
Journal Article
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