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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
31/05/2023 |
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Autoria: |
PEXTON, J. E.; FORD, S. P.; WILSON JUNIOR, L.; BUTCHER, R. L.; INSKEEP, E. K. |
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Título: |
Prostaglandins F in uterine tissue and venous plasma of ewes with intrauterine devices. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 41, n. 1, p. 144-153, 1975. |
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DOI: |
https://doi.org/10.2527/jas1975.411144x |
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Idioma: |
Inglês |
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Conteúdo: |
Levels of prostaglandins F (PGF) in uterine tissues and in uterine and peripheral plasma from ewes with and without IUD's were examined. Mature ewes were laparotomized on day 2 of the estrous cycle. Fifteen ewes with a corpus luteum on only one ovary were assigned at random to either a treated group (10 ewes) which received an intrauterine device (IUD) in each uterine horn or to a control group (five ewes). Twelve ewes had a corpus luteum on each ovary and received at random an IUD in one uterine horn (eight ewes) or a sham operation (four ewes). Blood was collected from a major vein of each uterine horn on day 5. Uteri were removed and the uterine horns were separated and dissected into caruncular and intercaruncular endometrium and myometrium. Prostaglandins F were extracted with ethyl acetate, separated by column chromatography on silicic acid and quantified by radioimmunoassay. An IUD in one or in both uterine horns resulted in higher concentrations (ng/ml) of PGF in uterine venous plasma from both horns (6.4 + 2.2 to 9.3 + 2.7) than in controls (.5 + .1 to .6 -+ .2). PGF (ng/g) in uterine tissue from ewes which had an IUD in each uterine horn was considerably higher in caruncular (382 + 42), intercaruncular (641 -+ 95) and myometrial tissue (82 + 9) than in controls (199 + 49, 240 -+ 72 and 50 -+ 11 in caruncular and intercaruncular endometrium and myometrium, respectively). In bilaterally-ovulating ewes with an IUD in one uterine horn, caruncular endometrium from those horns consistently contained more PGF (293 + 23 ng/g) than caruncular endometrium from uterine horns not containing an IUD (149 + 21) or from control ewes (130 + 24). The concentration of PGF in jugular plasma from IUD-bearing ewes (.4 + .1) was not different from that measured in plasma from control ewes (.4 + .1). MenosLevels of prostaglandins F (PGF) in uterine tissues and in uterine and peripheral plasma from ewes with and without IUD's were examined. Mature ewes were laparotomized on day 2 of the estrous cycle. Fifteen ewes with a corpus luteum on only one ovary were assigned at random to either a treated group (10 ewes) which received an intrauterine device (IUD) in each uterine horn or to a control group (five ewes). Twelve ewes had a corpus luteum on each ovary and received at random an IUD in one uterine horn (eight ewes) or a sham operation (four ewes). Blood was collected from a major vein of each uterine horn on day 5. Uteri were removed and the uterine horns were separated and dissected into caruncular and intercaruncular endometrium and myometrium. Prostaglandins F were extracted with ethyl acetate, separated by column chromatography on silicic acid and quantified by radioimmunoassay. An IUD in one or in both uterine horns resulted in higher concentrations (ng/ml) of PGF in uterine venous plasma from both horns (6.4 + 2.2 to 9.3 + 2.7) than in controls (.5 + .1 to .6 -+ .2). PGF (ng/g) in uterine tissue from ewes which had an IUD in each uterine horn was considerably higher in caruncular (382 + 42), intercaruncular (641 -+ 95) and myometrial tissue (82 + 9) than in controls (199 + 49, 240 -+ 72 and 50 -+ 11 in caruncular and intercaruncular endometrium and myometrium, respectively). In bilaterally-ovulating ewes with an IUD in one uterine horn, caruncular endometrium from those... Mostrar Tudo |
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Thesagro: |
Endocrinologia; Fisiologia; Ovino; Prostaglandina; Reprodução; Útero. |
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Thesaurus Nal: |
Animal physiology; Animal reproduction; Corpus luteum; Metabolism; Ovulation; Pregnancy; Progesterone; Prostaglandins; Sheep; Uterus. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02817naa a2200373 a 4500
001 1523081
005 2023-05-31
008 1975 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.2527/jas1975.411144x$2DOI
100 1 $aPEXTON, J. E.
245 $aProstaglandins F in uterine tissue and venous plasma of ewes with intrauterine devices.
260 $c1975
520 $aLevels of prostaglandins F (PGF) in uterine tissues and in uterine and peripheral plasma from ewes with and without IUD's were examined. Mature ewes were laparotomized on day 2 of the estrous cycle. Fifteen ewes with a corpus luteum on only one ovary were assigned at random to either a treated group (10 ewes) which received an intrauterine device (IUD) in each uterine horn or to a control group (five ewes). Twelve ewes had a corpus luteum on each ovary and received at random an IUD in one uterine horn (eight ewes) or a sham operation (four ewes). Blood was collected from a major vein of each uterine horn on day 5. Uteri were removed and the uterine horns were separated and dissected into caruncular and intercaruncular endometrium and myometrium. Prostaglandins F were extracted with ethyl acetate, separated by column chromatography on silicic acid and quantified by radioimmunoassay. An IUD in one or in both uterine horns resulted in higher concentrations (ng/ml) of PGF in uterine venous plasma from both horns (6.4 + 2.2 to 9.3 + 2.7) than in controls (.5 + .1 to .6 -+ .2). PGF (ng/g) in uterine tissue from ewes which had an IUD in each uterine horn was considerably higher in caruncular (382 + 42), intercaruncular (641 -+ 95) and myometrial tissue (82 + 9) than in controls (199 + 49, 240 -+ 72 and 50 -+ 11 in caruncular and intercaruncular endometrium and myometrium, respectively). In bilaterally-ovulating ewes with an IUD in one uterine horn, caruncular endometrium from those horns consistently contained more PGF (293 + 23 ng/g) than caruncular endometrium from uterine horns not containing an IUD (149 + 21) or from control ewes (130 + 24). The concentration of PGF in jugular plasma from IUD-bearing ewes (.4 + .1) was not different from that measured in plasma from control ewes (.4 + .1).
650 $aAnimal physiology
650 $aAnimal reproduction
650 $aCorpus luteum
650 $aMetabolism
650 $aOvulation
650 $aPregnancy
650 $aProgesterone
650 $aProstaglandins
650 $aSheep
650 $aUterus
650 $aEndocrinologia
650 $aFisiologia
650 $aOvino
650 $aProstaglandina
650 $aReprodução
650 $aÚtero
700 1 $aFORD, S. P.
700 1 $aWILSON JUNIOR, L.
700 1 $aBUTCHER, R. L.
700 1 $aINSKEEP, E. K.
773 $tJournal of Animal Science$gv. 41, n. 1, p. 144-153, 1975.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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