短链脂肪酸对缺氧-再输液损伤的神经保护作用
Anjit K Harijan1, Retnamony Kalaiarasan1, Amit Kumar Ghosh1
1Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India.
Molecular and cellular neurosciences
|September 30, 2024
概括
肠道微生物短链脂肪酸 (SCFA),和丁酸盐,保护大脑细胞免受缺氧损伤. 饮食中SCFA补充剂可以减少与中风相关的脑损伤,并增强神经健康.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 生物化学 生化学
背景情况:
- 肠道微生物衍生的短链脂肪酸 (SCFA) 影响大脑功能.
- 对于SCFA对缺氧损伤和中风的神经保护作用尚不清楚.
研究的目的:
- 为了研究酸 (P) 和丁酸盐 (B) 对缺氧-再输液损伤的神经保护作用.
- 探索SCFA补充剂在减轻中风诱导的大脑损伤方面的潜力.
主要方法:
- 利用神经元细胞系 (Neuro 2a) 和斑马鱼模型研究SCFA效应.
- 评估了细胞活力,活性氧物种 (ROS) 水平,线粒体功能和亡标志物.
- 在食SCFA补充饮食的斑马鱼中评估了行为变化和脑损伤.
- 分析了脂肪酸结合蛋白7 (FABP7/BLBP) 的表达.
主要成果:
- P和B治疗减少了ROS,保留了线粒体膜潜力,抑制了酶激活,并在暴露于缺氧的神经元细胞中减少了细胞死亡.
- 食斑马鱼的SCFA显示出对缺氧的敏感性降低,在组织学上观察到的脑损伤较少.
- 在斑马鱼大脑中,SCFA补充对FABP7/BLBP表达进行了上调.
- 过度表达FABP7/BLBP在神经元细胞中提供神经保护,防止缺氧损伤.
结论:
- 酸和丁酸对缺氧性脑损伤具有神经保护性.
- 饮食中SCFA补充剂显示了预防或减少与中风相关的大脑损伤的潜力.
- FABP7/BLBP可能会调解SCFA的神经保护作用.
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