储会引起神经内分泌毒性,通过扰乱斑马鱼的下丘脑-垂体-甲状腺轴,诱导认知障碍
Fengzhi Sun1,2, Lijie Xia1,2, Baokun Wang1,2
1Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, China.
NeuroSci
|April 23, 2025
概括
抗高血压药物reserpine会导致剂量依赖的神经内分泌毒性. 这项研究揭示了保留素会破坏斑马鱼的甲状腺发育和神经发育基因表达.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 毒理学 毒理学 毒理学
背景情况:
- 瑞瑟平是一种广泛使用的抗高血压药物.
- 它的神经内分泌毒性尚未完全理解.
- 了解这些影响对于患者安全至关重要.
研究的目的:
- 研究保留素对斑马鱼发育,中枢神经系统和甲状腺功能的影响.
- 探索保留素对与神经发育和内分泌调节相关的基因的影响.
- 为了阐明储诱导的神经内分泌毒性的机制.
主要方法:
- 斑马鱼暴露于不同剂量的储 (0.516毫克/升).
- 对发育,运动和中枢神经系统神经元的评估影响.
- 分析了与神经发育,内分泌功能,学习,记忆和抑郁相关的基因表达.
主要成果:
- 瑞瑟平在神经内分泌系统 (NES) 上表现出剂量依赖的毒性.
- 观察到下丘脑-垂体-甲状腺 (HPT) 轴的干扰,关键的甲状腺相关基因 (hhex, tg, tshβ) 的下调.
- 神经发育受损的迹象是神经元结构和功能基因 (gfap, gap43, mbp, syn2a, tuba1b) 和神经传输相关基因 (crhb, mao) 的表达减少.
结论:
- 素诱导剂量依赖的神经内分泌毒性.
- 该药物破坏了甲状腺激素的合成和内分泌平衡.
- 瑞瑟平对神经发育,神经元功能和神经传递产生负面影响,突出显示了内分泌和神经发育通路的相互联系.
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