聚醇介导的血糖控制的结构基础:在模拟的胃肠道条件下对catechin oligomerization和酸降解进行比较研究
Yang Liu1, Gexin Liu1, Yingbo Zhao1
1College of Enology, Northwest A&F University, Yangling 712100, China.
Food chemistry
|December 21, 2025
概括
葡萄酒中的多,如甲素和酸在肠道中转化,产生生物活性代谢物. 这些化合物及其产物有效抑制关键酶,通过α-葡萄糖酶抑制提供了一种通过α-葡萄糖酶抑制治疗糖尿病的新策略.
科学领域:
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
- 营养科学 营养科学
背景情况:
- 糖尿病是一种全球性健康问题,需要治疗慢性高血糖症.
- 肠道α-葡萄糖酶抑制是糖尿病管理的一个关键策略.
- 葡萄酒中的多,包括甲素和酸,显示出潜力,但具有有限的生物可用性和不清楚的代谢命运.
研究的目的:
- 为了研究葡萄酒衍生的甲基素和酸的胃肠道转化.
- 为了识别在消化过程中产生的生物活性代谢物.
- 以计算方式评估母化合物及其代谢物的α-葡萄糖酶抑制潜力.
主要方法:
- 模拟的消化模型.
- 高性能液体染色学 (HPLC) 和高分辨率液体染色学-质谱学 (HR-LC-MS/MS) 用于代谢物识别.
- 分子对接模拟用于预测酶-抑制剂相互作用.
主要成果:
- 在胃阶段,甲基素聚合成寡合物,并在肠道中被切割成代谢物.
- 酸在肠道中被广泛降解 (>97%),形成p-hydroxybenzoic酸和类似ferulic酸的化合物.
- 两个原始化合物及其代谢物都对马尔塔酶-葡萄糖胺酶和糖酶-异马尔塔酶表现出抑制作用,其中一个甲基素添加物表现出最强的结合亲和力.
结论:
- 该研究表明,在胃肠道消化过程中,葡萄酒聚醇产生生物活性代谢物.
- 这些代谢产物,以及母化合物,具有α-葡萄糖酶抑制活性.
- 这些发现为通过计算建模在糖尿病管理中使用多提供了机械基础.
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