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长期可变光周期扰乱前额叶皮和海马体中的血清激素信号,导致情绪和认知缺陷

Yuanyuan Hou¹, Yongxiang Zhang¹, Han Chao¹

¹Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China, 266000.

Brain research bulletin

|March 12, 2026

概括

长期的昼夜节律障碍会导致焦虑,抑郁和认知缺陷,因为它会损害脑部关键区域的血清信号传递. 这突出了治疗相关神经精神疾病的潜在目标.

科学领域:

神经科学是一个神经科学.
时间生物学时间生物学
分子精神病学分子精神病学

背景情况:

循环节律障碍与情绪和认知障碍有关.
这些缺陷背后的分子途径仍然不清楚.
血清激素 (5-HT) 信号传递与情绪和认知调节有关.

研究的目的:

研究长期可变光周期 (L-VP) 对情绪和认知功能的影响.
为了检查前额叶皮层 (PFC) 和海马体内血清激素信号传递的同时变化.
阐明连接昼夜失调与神经精神病症状的分子机制.

主要方法:

威斯塔鼠被暴露在长期可变光周期 (L-VP) 条件下.
行为评估评估了类似焦虑的行为,抑郁的表型和认知功能.
在PFC和海马体中分析了血清素 (5-HT) 代谢和5-HT受体 (HTR1A,HTR2A) 表达.

主要成果:

L-VP诱导焦虑,抑郁和认知障碍,特别是在主观活跃阶段.
观察到5-HT代谢发生变化,5-HIAA水平降低和5-HIAA/5-HT比率降低,表明血清递质传输受损.
发生了HTR1A和HTR2A表达的循环失调,特别是在PFC中减少了HTR2A.

结论:

慢性昼夜失调会破坏PFC和海马体中的5-HT信号传输.
这些干扰有助于在L-VP大鼠中观察到的情绪和认知缺陷.
PFC和海马对于整合昼夜和情绪功能至关重要,提供潜在的治疗点.

关键词:

5HT的使用方法是: 5-HT 循环节律不整齐,心脏节律不整齐.认知障碍认知障碍是一种认知障碍.在海马体内,海马体情绪障碍情绪障碍情绪障碍前额叶皮层前额叶皮层.

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