黑色素对糖尿病认知障碍患者的肠道微生物群和代谢因子的影响
Ming Gao1,2, Jie Li1,2, Xu Han1
1Department of Endocrinology and Rare Disease, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Frontiers in pharmacology
|December 6, 2024
概括
黑素 (MEL) 通过调节肠道微生物组和代谢学来缓解糖尿病认知障碍. 这项研究表明,MEL可以防止神经炎症,并在糖尿病小鼠中恢复有益的肠道细菌和代谢物.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 微生物学 微生物学
背景情况:
- 糖尿病认知障碍 (DCI) 是人口老龄化的一个严重并发症.
- 黑素 (MEL) 已知具有抗氧化和抗炎性神经保护作用.
- 肠道微生物组通过肠-大脑交叉声波影响DCI,而MEL在糖尿病模型中调节它.
研究的目的:
- 调查MEL对减弱DCI的影响.
- 阐明涉及肠道微生物组和代谢学调节的机制.
主要方法:
- 使用莫里斯水迷宫,大脑组织病理学和神经炎症/亡标志物评估认知功能.
- 血清炎症标志物 (TNF-α,IL-18) 通过ELISA测量.
- 通过16S rRNA测序分析肠道微生物组.
- 用LC-MS/MS进行分析的肠道代谢物.
主要成果:
- 在糖尿病小鼠中,MEL治疗缓解了认知和记忆缺陷.
- MEL减少了海马神经炎症和亡.
- MEL纠正了肠道微生物群的不平衡 (增加了 * 细菌体 * * 多雷亚 *;减少了 * 前列腺菌 *).
- MEL恢复了pyruvate和乳酸的水平,脂质是主要的差异代谢物.
结论:
- 作为DCI的治疗剂,MEL显示出有前途的前景.
- 治疗机制涉及调节肠道微生物群和代谢学.
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