相关实验视频
Updated: May 29, 2025
03:48
Restraint to Induce Stress in Mice and Rats
Published on: December 6, 2024
957
调节诺亚上腺体信号反转压力诱导的海马变化:涉及上腺体系统的参与
Masoumeh Sarfi1, Mahmoud Elahdadi Salmani1, Taghi Lashkarbolouki1
1School of Biology Damghan University Damghan Iran.
Brain research
|February 5, 2025
概括
使用约欣宾的诺拉丁激活,逆转了对海马的慢性压力影响. 这种应激反应调制改善了素系统和葡萄糖皮质体受体表达,并部分恢复了神经元群.
科学领域:
- 神经科学是一个神经科学.
- 压力生理学 压力生理学
- 药理学 药理学是指药理学的学科.
背景情况:
- 慢性压力会对海马产生负面影响,海马是记忆和情绪的关键大脑区域.
- 诺亚上腺和上腺系统对于调解身体对压力的反应至关重要.
研究的目的:
- 为了研究noradrenergic激活如何影响慢性压力诱导的海马变化.
- 探讨在这种应激反应中氧化调节的作用.
主要方法:
- 研究了五组受控的雄性Wistar大鼠,急性压力和慢性压力状况,有或没有诺亚激活 (yohimbine).
- 分析海马组织和血的皮质激素 (CORT) 水平,基因表达 (前素,素受体-1,葡萄糖皮质受体) 和神经元计数.
主要成果:
- 无论是急性还是慢性压力都增加了CORT,前前素,素受体-1和葡萄糖皮质体受体表达,同时减少了神经元数量.
- 在慢性压力下的老鼠中,诺拉丁激素激活 (yohimbine) 正常化了prepro-orexin,orexin受体-1和葡萄糖皮质体受体表达.
- 慢性压力减少了海马神经元群体,这种效应在约因治疗后部分逆转.
结论:
- 诺亚上腺体信号传递,特别是通过约宾,可以抵消由慢性压力引起的有害海马体变化.
- 这表明,通过向noradrenergic和orexinergic途径,对与压力相关的海马体功能障碍提供了潜在的治疗途径.
相关概念视频
01:37Hypothalamic-Pituitary Axis
59.0K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
59.0K
01:25The Sympathetic Nervous System
94.3K
Overview
94.3K
01:30Regulation of Food Intake
181
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
181