从生中提取的6-Shogaol 抑制了肠道密码干细胞的分化,并有助于刺激性肠综合征风险
Bing Zhao1,2, Juan Ye1,2, Wenjing Zhao1,2
1State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, Nanjing, China.
Research (Washington, D.C.)
|November 8, 2024
概括
生消费可能会恶化易怒肠综合征 (IBS) 症状. 一种加工的生成分,6-生醇,破坏肠道干细胞功能,增加炎症,在小鼠中加剧IBS.
科学领域:
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
- 营养科学 营养科学
背景情况:
- 饮食因素与刺激性肠综合征 (IBS) 病变发生有关.
- 生消费与IBS症状恶化有关,但根本机制尚不清楚.
- 需要进一步的研究来确定IBS患者的饮食禁忌.
研究的目的:
- 阐明生摄入加剧IBS症状的机制.
- 为了确定生中负责IBS恶化的特定有毒成分.
- 为IBS患者的饮食建议提供科学依据.
主要方法:
- 开发IBS和肠道器官分化的实验模型.
- 利用淘汰赛方法,点击化学和病毒感染来识别生的有毒成分和机制.
- 给小鼠服用不同剂量的生,以评估症状恶化和分子变化.
主要成果:
- 每天摄入90-300毫克/公斤 (0.6-2克/人) 的生可能会加剧IBS症状.
- 一种经过加工的6-生醇衍生物与eIF3A结合,抑制eIF3转录启动复合体.
- 这种抑制减少了杯状细胞数量,稀释了粘液层,增加了脂多糖透,并促进了乳房炎症,使小鼠的IBS恶化.
结论:
- 饮食中食用生可以通过一种特定的分子机制加剧IBS症状,其中包括6-gingerol.
- 该研究确定了一个关键的分子标 (eIF3A) 和生引起的IBS恶化的途径.
- 这些发现支持对食品成分进行安全评估的必要性,这些食品成分适用于IBS患者等特定人群.
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