外源的单谷氨酸会加剧脂肪多糖诱导的神经行为缺陷,氧化损伤,神经炎症和大鼠大脑中的胆固醇功能障碍
Folake Olubukola Asejeje1, Michael Abayomi Abiola2, Oluwatobi Adewumi Adeyemo1
1Department of Chemical Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria.
Neuroscience letters
|March 3, 2024
概括
单谷氨酸 (MSG) 在大鼠中恶化由脂多糖 (LPS) 引起的脑损伤. 暴露于MSG会增加神经炎症,氧化应激和神经退行,损害大脑功能.
科学领域:
- 神经科学是一个神经科学.
- 毒理学 毒理学 毒理学
- 食品科学 食品科学 食品科学
背景情况:
- 神经炎症和氧化应激是神经退行的主要驱动因素.
- 单谷氨酸 (MSG) 是一种常见的食品添加剂,具有争论的神经效应.
- 脂聚糖 (LPS) 用于在实验模型中诱导神经毒性.
研究的目的:
- 在大鼠模型中研究MSG对LPS诱导的神经毒性的影响.
- 评估MSG在恶化神经炎症,氧化应激和神经行为缺陷方面的作用.
主要方法:
- 维斯塔鼠被分为对照,MSG,LPS和LPS + MSG组.
- LPS是通过腹腔内给药的,而MSG是通过口服给药的,持续时间是指定的.
- 评估了神经行为活动,氧化应激标志物 (MDA,SOD,CAT,GSH,GST),神经炎症标志物 (IL-6,TNF-α,MPO,NO),胆固醇功能 (AChE) 和神经元形态 (H&E染色).
主要成果:
- MSG显著加剧了运动和探索活动中LPS诱导的损伤.
- 多氨基糖加剧了LPS诱导的氧化应激和神经炎症,由改变的生物化学标志物表明.
- MSG加剧了LPS诱导的胆功能障碍和大脑关键区域的广泛的神经元退化.
结论:
- 单谷氨酸会加剧LPS诱导的神经毒性,导致神经行为缺陷恶化.
- 在LPS暴露的背景下,MSG会加剧氧化应激,神经炎症和胆功能障碍.
- 这些发现表明MSG可以加剧神经退行症和相关的大脑功能障碍.
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