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背部拉菲到腹部海马体投射通过5-HT_1B受体调节反应性侵略

Po-Yu Chien¹, Chun-Lin Su², Pei-Hua Liu³

¹Department of Pharmacology, National Cheng-Kung University, Tainan, Taiwan; Department of Pharmacy, China Medical University Hospital, No. 2, Yude Rd., North Dist., Taichung, Taiwan.

European journal of pharmacology

|August 19, 2024

概括

激活向腹部海马体 (vHip) 的背脊拉菲核 (DRN) 途径显著降低了小鼠的反应性攻击性. 这种效应依赖于血清素1B (5-HT1B) 受体,这表明治疗点.

科学领域:

神经科学是一个神经科学.
行为科学行为科学
药理学药理学是指药理学的学科.

背景情况:

不适应性反应性侵略是神经精神疾病 (如精神分裂症) 的关键症状.
低血清素 (5-HT) 水平与增加的侵略性有关.
在小鼠中,社会隔离导致压力诱导的攻击性,涉及过度活跃的腹部海马体 (vHip).

研究的目的:

研究向vHip投射的拉菲核在调节侵略性行为的作用.
探索针对DRN-vHip途径治疗反应性侵略的潜力.

主要方法:

在社会隔离的小鼠中使用化学遗传来激活向vHip投射的背脊拉菲核 (DRN).
服用5-HT1B受体对手SB-224289,以评估这些受体的作用.
将5-HT1B受体激素注入vHip中,并测量vHip神经元向中腹下丘脑 (VMH) 投射的c-Fos表达.

主要成果:

激活DRN→vHip通路显著降低了反应性攻击性.
这种减少被5-HT1B受体抗剂阻断,证实了受体的依赖性.
激活DRN→vHip抑制了与侵略相关的VMH区域,并在vHip投射神经元中降低了神经元活动.

结论:

激活向vHip投射的DRN足以通过一个依赖于5-HT1B受体的机制来抑制反应性侵略.
向5-HT1B受体代表了对反应性侵略症状的潜在治疗策略.

关键词:

5HT(1B) 的受体受体.青少年时期青春期攻击性侵略性攻击性拉菲核中的核.社会隔离,社会孤立.腹腔海马体腹腔海马体

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