Etude des réponses motrices de l'utérus aux catécholamines chez la brebis sous différentes imprégnations stéroïdiennes. Mise en évidence du rôle des catécholamines endogènes

PRUD'HOMME, Marie-Jeanne; COUTHERUT, G.; JAMAIN, C.

doi:10.1051/rnd:19840103

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1985

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“…Activation of the sympathicoadrenal system would explain both activation of the genital tract (Prud'homme, 1984) and differential responsiveness of the uterus and the cervix. Indeed, in the oestrogenprimed ewe it has been shown that the cervix is systematically activated by adrenaline infusion (a effect) while the uterus shows either partial inhibition (ß effect) or activation (oc effect) in response to adrenaline .…”

Section: Discussionmentioning

confidence: 99%

Activity of the genital tract and plasma levels of oxytocin and cortisol at the time of mating in the ewe

Garcia‐Villar¹,

Schams²,

Alvinerie³

et al. 1985

Journal of Endocrinology

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Experiments were conducted in the ewe to determine the effects of mating on the activity of the genital tract and on blood levels of oxytocin and cortisol. The activity of the uterus and cervix was recorded by electromyography, oxytocin was measured by radioimmunoassay, and cortisol by high performance liquid chromatography. Mating itself did not increase circulating oxytocin or cortisol; uterine motility remained unchanged during and after copulation but the cervix was significantly stimulated during teasing and after copulation. It is suggested that increased cervical activity resulting from adrenergic mechanisms may facilitate the generation of a cervical reserve of spermatozoa.

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Section: Discussionmentioning

confidence: 99%