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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/09/2018 |
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Data da última atualização: |
19/09/2018 |
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Autoria: |
CRANE, L. H.; MARTIN, L. |
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Título: |
Postcopulatory myometrial activity in the rat as seen by video-laparoscopy. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Reproduction, Fertility and Development, v. 3, n. 6, p. 685-698, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Myometrial activity was analysed by video-laparoscopy in unmated and mated oestrous female rats. In the former, most contractions propagated caudally and were predominantly longitudinal, with circular contractions limited to weak peristalsis. Mating had dramatic effects on activity, inducing a high frequency of strong peristaltic and non-peristaltic circular contractions propagating both cranially and caudally. Activity remained elevated for up to 10 h, decreasing to control levels as uterine contents were lost when the vaginal plug disintegrated. Mechanical stimulation of the cervix, sufficient to induce pseudopregnancy, increased the frequency of weak peristalsis but did not induce myometrial activity comparable to that seen after mating. Treatment of mated females with indomethacin returned myometrial activity towards control levels, suggesting that myometrial stimulation involved prostanoid production. After mating to intact males the uterus took on a characteristic blue colour suggestive of hypoxia. This too was abolished by indomethacin treatment. Removal of accessory reproductive glands from males showed that induction of myometrial activity and the colour change both required constituents from the vas deferens, seminal vesicles and coagulating glands. Males lacking seminal vesicles or coagulating glands were infertile. The prolonged myometrial activity and putative hypoxia induced by seminal constituents may be important in survival and selection of sperm. |
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Palavras-Chave: |
Cervix Uteri; Drug effects; Physical Stimulation; Vas Deferens; Videotape Recording. |
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Thesaurus Nal: |
Animal fertility; Copulation; Female fertility; Indomethacin; Laparoscopy; Male genitalia; Myometrium; Pharmacology; Pregnancy; Rats; Seminal vesicles; Uterine contraction. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02406naa a2200337 a 4500
001 2096021
005 2018-09-19
008 1991 bl uuuu u00u1 u #d
100 1 $aCRANE, L. H.
245 $aPostcopulatory myometrial activity in the rat as seen by video-laparoscopy.
260 $c1991
520 $aAbstract: Myometrial activity was analysed by video-laparoscopy in unmated and mated oestrous female rats. In the former, most contractions propagated caudally and were predominantly longitudinal, with circular contractions limited to weak peristalsis. Mating had dramatic effects on activity, inducing a high frequency of strong peristaltic and non-peristaltic circular contractions propagating both cranially and caudally. Activity remained elevated for up to 10 h, decreasing to control levels as uterine contents were lost when the vaginal plug disintegrated. Mechanical stimulation of the cervix, sufficient to induce pseudopregnancy, increased the frequency of weak peristalsis but did not induce myometrial activity comparable to that seen after mating. Treatment of mated females with indomethacin returned myometrial activity towards control levels, suggesting that myometrial stimulation involved prostanoid production. After mating to intact males the uterus took on a characteristic blue colour suggestive of hypoxia. This too was abolished by indomethacin treatment. Removal of accessory reproductive glands from males showed that induction of myometrial activity and the colour change both required constituents from the vas deferens, seminal vesicles and coagulating glands. Males lacking seminal vesicles or coagulating glands were infertile. The prolonged myometrial activity and putative hypoxia induced by seminal constituents may be important in survival and selection of sperm.
650 $aAnimal fertility
650 $aCopulation
650 $aFemale fertility
650 $aIndomethacin
650 $aLaparoscopy
650 $aMale genitalia
650 $aMyometrium
650 $aPharmacology
650 $aPregnancy
650 $aRats
650 $aSeminal vesicles
650 $aUterine contraction
653 $aCervix Uteri
653 $aDrug effects
653 $aPhysical Stimulation
653 $aVas Deferens
653 $aVideotape Recording
700 1 $aMARTIN, L.
773 $tReproduction, Fertility and Development$gv. 3, n. 6, p. 685-698, 1991.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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