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首页> 外文期刊>Brain research >Biostimulation and nursing modify mating-induced c-FOS immunoreactivity in the female rabbit forebrain
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Biostimulation and nursing modify mating-induced c-FOS immunoreactivity in the female rabbit forebrain

机译：生物致刺激和护理改变雌性兔前脑中的交配诱导的C-FOS免疫反应性

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Mating in rabbits lasts only 3-5 s but profoundly changes the female's physiology and behavior (e.g., inhibition of scent-marking and ambulation, changes in EEG, and release of GnRH). The behavioral responsiveness to copulation is reduced in lactating rabbits, relative to estrous does, but is enhanced after suppressing a single nursing bout ("biostimulation"). Little is known about the mechanisms mediating the differential responsiveness to mating among estrous, lactating, and biostimulated rabbits. To begin addressing this issue we quantified the number of c-FOS-immunoreactive (IR) cells in the preoptic area (POA), dorsomedial hypothalamus (DMH), ventromedial hypothalamus (VMH), infundibular nucleus (INF), paraventricular nucleus (PVN), supraoptic nucleus (SON), and lateral septum (LS) in mated and unmated does from the above three reproductive conditions. Mating increased c-FOS-IR cells in the POA and PVN relative to unmated estrous does. Biostimulation increased c-FOS-IR cells in the PVN, relative to lactating does, regardless of mating. Lactation reduced the responsiveness of the LS and INF to copulation but increased it in the DMH. No differences were found in the VMH. Conclusions: a) copulation activates forebrain nuclei that regulate scent-marking (POA), ovulation (INF), and post-coital oxytocin release (PVN); b) lactation and suppression of one nursing bout modulate the magnitude of such changes. (C) 2015 Elsevier B.V. All rights reserved.
机译：在兔子中交配只有3-5秒，但深刻地改变了女性的生理学和行为（例如，抑制香味和救护，脑电图的变化以及GNRH的释放）。对交联的行为响应性在哺乳酸兔中减少，相对于溶解，但在抑制单一护理伴（“生物刺激”）后得到增强。关于介导差异响应性与腐蚀性，泌乳和生物刺激的兔相配的机制很少。要开始解决该问题，我们量化了诱导区域（POA），背体下丘脑（DMH），口腔内丘脑（VMH），令人肠胃细胞核（INF），椎间盘核（PVN）中的C-FOS-免疫反应性（IR）细胞数量的数量，在交配和展示中的上升核（儿子）和侧面隔膜（LS）从上述三种生殖条件下进行。在POA和PVN中加入增加的C-FOS-IR细胞相对于未加关的溶解性。无论配合如何，生物致使在PVN中增加了PVN中的C-FOS-IR细胞。哺乳减少了LS和INF的响应性，并在DMH中增加了它。 VMH没有发现差异。结论：a）交配激活调节气味（POA），排卵（INF）和高速后催产素释放（PVN）的前脑核; b）哺乳和抑制一个护理伴的调节了这种变化的大小。 （c）2015 Elsevier B.v.保留所有权利。

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