莲花种子粉-酸复合物缓解了慢性结肠炎和通过肠道微生物群调节的相关认知功能障碍:肠-大脑-轴相互作用
Xiaoying Wang1, Shiqi Wang1, Baodong Zheng1
1College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Carbohydrate polymers
|September 14, 2025
概括
莲花种子粉-酸复合物 (A-LS-CA) 有效治疗老鼠慢性结肠炎和认知功能障碍. A-LS-CA改善了肠道健康,减少了炎症,并平衡了肠-大脑轴.
科学领域:
- 生物化学 生物化学
- 微生物学 微生物学
- 神经科学是一个神经科学.
背景情况:
- 慢性结肠炎和相关的认知功能障碍对健康构成重大挑战.
- 肠-大脑轴在调解肠道健康和大脑功能之间的关系方面发挥着至关重要的作用.
- 莲花种子粉-酸复合物 (A-LS-CA) 正在研究其治疗潜力.
研究的目的:
- 研究A-LS-CA对硫酸 (DSS) 诱导的慢性结肠炎和认知功能障碍的保护机制.
- 评估A-LS-CA对大肠炎病理和认知障碍的剂量依赖性影响.
- 阐明A-LS-CA对肠道微生物群及其代谢物的影响.
主要方法:
- 用DSS诱导小鼠患有慢性结肠炎.
- A-LS-CA 用于不同的剂量.
- 评估了疾病活动指数,结肠长度和组织损伤.
- 测量了炎症标志物 (TNF-α,IL-6,IL-1β,NF-κB,TLR4) 的mRNA和蛋白质水平.
- 分析了紧结蛋白 (ZO-1,Claudin-1) 的表达.
- 分析了肠道微生物群的组成和代谢物 (SCFA,胺) 的产生.
主要成果:
- 根据剂量,A-LS-CA缓解了慢性结肠炎症状,改善了疾病活性指数,结肠长度和组织完整性.
- 2g/kg的A-LS-CA剂量显著降低了结肠组织中的炎症标志物 (TNF-α,IL-6,IL-1β,NF-κB,TLR4).
- A-LS-CA显著提高了ZO-1和Claudin-1水平,表明肠道屏障功能得到改善.
- A-LS-CA调节了肠道微生物群的组成,并促进了有益的代谢物的产生,如短链脂肪酸和胺.
- 改善肠道健康与大肠炎小鼠减轻认知和行为缺陷相关.
结论:
- A-LS-CA显示出对慢性结肠炎和相关认知功能障碍的显著保护作用.
- 治疗效益通过减少炎症,增强肠道屏障功能和调节肠道微生物群来实现.
- 通过平衡肠-大脑轴,A-LS-CA作为治疗慢性结肠炎和认知障碍的治疗药物具有前途.
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