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首页> 外文期刊>Journal of neuroendocrinology >Appetitive and consummatory sexual and agonistic behaviour elicits FOS expression in aromatase and vasotocin neurones within the preoptic area and bed nucleus of the stria terminalis of male domestic chickens.
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Appetitive and consummatory sexual and agonistic behaviour elicits FOS expression in aromatase and vasotocin neurones within the preoptic area and bed nucleus of the stria terminalis of male domestic chickens.

机译：竞争性和完善的性行为和激动行为会引起雄性家鸡视光前区和末端纹状体床核内的芳香化酶和血管收缩素神经元中FOS的表达。

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摘要

Some components of male sexual and agonistic behaviours are considered to be regulated by the same neurocircuitry in the medial preoptic nucleus (POM) and the medial portion of bed nucleus of the stria terminalis (BSTM). To better understand this neurocircuitry, numbers of aromatase- (ARO) or arginine vasotocin- (AVT) immunoreactive (ir) neurones expressing immediate early gene protein FOS were compared in the POM and BSTM of male chickens following sexual or agonistic behaviours. Observations were made on males showing: (i) appetitive (courtship) and consummatory (copulation) sexual behaviours; (ii) only appetitive sexual behaviour, or (iii) displaying agonistic behaviour toward other males. Control males were placed on their own in the observation pen, or only handled. In the POM, appetitive sexual behaviour increased ARO+FOS colocalisation, whereas agonistic behaviour decreased the number of visible ARO-ir cells. In the dorsolateral subdivision of BSTM (BSTM1), appetitive sexual behaviour also increased ARO+FOS colocalisation, although the numbers of visible ARO-ir and AVT-ir cells were not altered by sexual or agonistic behaviours. In the ventromedial BSTM (BSTM2), appetitive sexual behaviour increased ARO+FOS and AVT+FOS colocalisation, and all behaviours decreased the number of visible ARO-ir cells, particularly in males expressing consummatory sexual behaviour. Positive correlations were found between numbers of cells with ARO+FOS and AVT+FOS colocalisation in both subdivisions of the BSTM. Waltzing frequency was positively correlated with ARO+FOS colocalisation in the lateral POM, and in both subdivisions of the BSTM in males expressing sexual behaviour. Waltzing frequency in males expressing agonistic behaviour was negatively correlated with the total number of visible ARO-ir cells in the lateral POM and BSTM2. These observations suggest a key role for ARO and AVT neurones in BSTM2 in the expression of appetitive sexual behaviour, and differential roles for ARO cells in the POM and BSTM in the regulation of components of sexual and agonistic behaviours.
机译：男性性行为和激动行为的某些成分被认为受视前内侧核（POM）和纹状体床核内侧部分（BSTM）中相同的神经回路的调节。为了更好地了解这种神经回路，在雄性鸡的POM和BSTM中比较了性或激动行为后表达立即早期基因蛋白FOS的芳香化酶（ARO）或精氨酸血管收缩素（AVT）免疫反应（ir）神经元的数量。对男性的观察表明：（i）食欲（习性）和消费性（交配）性行为; （ii）仅具有刺激性的性行为，或（iii）对其他男性表现出激动的行为。对照雄性被单独放置在观察笔中，或仅被处理。在POM中，有性的性行为增加了ARO + FOS的共定位，而激动性行为减少了可见的ARO-ir细胞的数量。在BSTM（BSTM1）的背外侧细分中，尽管可见的ARO-ir和AVT-ir细胞的数量并未因性或激动性行为而改变，但有食欲的性行为也增加了ARO + FOS的共定位。在腹侧BSTM（BSTM2）中，有性的性行为会增加ARO + FOS和AVT + FOS的共定位，并且所有行为都会减少可见的ARO-ir细胞的数量，特别是在表现出完善性行为的男性中。在BSTM的两个分区中，具有ARO + FOS和AVT + FOS共定位的细胞数量之间存在正相关。表现性行为的雄性中，华尔兹频率与侧POM以及BSTM的两个细分中的ARO + FOS共定位呈正相关。表达激动行为的雄性华尔兹频率与侧面POM和BSTM2中可见的ARO-ir细胞总数呈负相关。这些观察结果表明，BSTM2中ARO和AVT神经元在食欲性行为的表达中起关键作用，而POM和BSTM中ARO细胞在性行为和激动性行为的成分调节中起着不同的作用。

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