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梅索托辛和非类受体促进了雌激素的群聚行为
James L Goodson1, Sara E Schrock, James D Klatt
1Department of Biology, Indiana University, Bloomington, IN 47405, USA. jlgoodso@indiana.edu
Science (New York, N.Y.)
|August 15, 2009
概括
催产素 (OT) 和中毒素 (MT) 非对雌性斑马的社会群体偏好产生影响. OT对手降低了社交性,而MT增加了社交性,这表明了社会行为的深刻进化框架.
科学领域:
- 神经伦理学 神经伦理学
- 比較心理學 比較心理學
- 行为内分泌学行为内分泌学.
背景情况:
- 社会群体大小偏好的神经机制在很大程度上是未知的.
- 像催产素 (OT) 这样的非类蛋白在社会行为中起作用.
- 斑马是高度群居的鸟类,使他们成为一个合适的模型.
研究的目的:
- 为了研究社会群体大小偏好背后的神经机制.
- 检查催产素 (OT) 和中毒素 (MT) 在调节社交性的作用.
- 探索非酸对社会行为的潜在的性别特异性影响.
主要方法:
- 在斑马的大脑中注射了OT抗剂和MT输液.
- 观察到与社会群体和熟悉的伴侣共度时间的变化.
- 检查了五种雌激素鱼物种的非类受体分布.
- 研究了OT抗剂输入侧隔膜的效果.
主要成果:
- 在雌性斑马中,OT对手减少了与大群体和熟悉的伴侣一起度过的时间.
- MT输液产生了相反的效果,增加了社交性.
- 影响主要是女性特有的.
- 种类典型的群体大小与侧面隔膜中的非类受体分布相关.
- 隔膜中的OT对手降低了社交性,但不是在对照区域.
结论:
- 非,特别是OT和MT,在调节社交和群体大小偏好方面发挥着至关重要的作用.
- MT可能代表了一种调节社交性的保存机制,OT在女性中演变为特殊的角色.
- 研究结果表明,OT在社会联系和孕产妇护理方面的功能演变的基因组学深层次框架.
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