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来自ilicis rotundae皮层的triterpenoids通过影响胆汁酸-肝肠FXR轴来改善超脂血症
Wei Zeng1, Mengjia Sun1, Jiamin Cao1
1State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; Chinese Medicine Guangdong Laboratory, Guangdong Hengqin, 519000, PR China.
来自Ilicis Rotundae Cortex (IRC) 的总三烯酸 (TT) 提取物有效地降低了超脂症小鼠的血脂水平. 这项研究揭示了它的机制,包括激活肠道的FXR-FGF15/19通路,改善胆酸代谢和减少肝损伤.
科学领域:
- 药理学 药理学是指药理学的学科.
- 代谢学 代谢学 代谢学
- 肝病学 肝病学是一种肝病学.
背景情况:
- 超脂血症是一种与高血压和心脏病等严重健康问题相关的疾病.
- 伊利西斯旋转皮层 (IRC) 原始提取物显示出对血脂调节的潜力.
- 在IRC内部,特定的低脂性药物和机制尚不清楚.
研究的目的:
- 为了研究从IRC.中提取的全三 (TT) 提取物的低脂性影响.
- 阐明TT提取物在改善高脂血症方面的潜在机制.
- 探索胆酸代谢和肝肠轴的作用.
主要方法:
- 来自IRC的TT提取物的制备和表征.
- 建立超脂血症小鼠模型,使用高脂肪,高糖,高胆固醇饮食.
- 使用TT提取物作为预防性干预措施.
- 血清非向和胆酸向代谢组合的整合.
- 应用分子生物学技术来分析信号通路.
主要成果:
- 在高脂血症小鼠中,TT提取物显著降低了脂质水平.
- TT提取物下调胆酸水平,特别是FXR对抗剂.
- 观察到肝脏FXR-SHP和阴茎内FXR-FGF15信号通路的变化.
- 减少CYP7A1和CYP7B1的表达,以及在肝脏和骨髓中升调的FXR表达.
- 在体外研究证实了TT提取物对FXR和FGF19蛋白质表达的影响.
结论:
- 来自IRC的TT提取物具有显著的低脂性效应.
- 这项研究首先阐明了涉及肝肠轴和胆酸代谢的机制.
- 该机制与激活肠道FXR-FGF15/19信号通路有关,改善胆酸代谢,减少肝损伤.
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