在高脂肪饮食诱导的小鼠中,介导的脂多糖化物加剧脂肪肝过程
Penghui Nie1, Liehai Hu1, Tao You1
1State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China.
Environmental toxicology
|December 23, 2024
概括
肥胖与暴露加剧了脂肪肝疾病的进展. 摄入会通过促进炎症和破坏肠道微生物群来加剧肝脏损伤,突显了肠道健康在代谢障碍中的关键作用.
科学领域:
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
- 胃肠病学 胃肠病学
背景情况:
- 肥胖是一个主要的健康问题,与许多风险有关.
- 是一种高度有毒的物质,对肥胖个体构成更大的风险.
- 高脂肪饮食 (HFD) 有助于脂肪肝疾病 (FLD).
研究的目的:
- 研究 (Pb) 暴露和HFD对肝损伤的协同效应.
- 探索肥胖中Pb诱导的肝损伤的潜在机制.
- 确定肠道微生物群在FLD进展中的作用.
主要方法:
- C57BL/6小鼠被养正常或HFD与/或没有Pb暴露8周.
- 分析包括血清/肝脏生物化学,组织病理学和RT-qPCR.
- 便微生物群移植被用来评估肠道微生物群的作用.
主要成果:
- 慢性Pb摄入加快了HFD诱导的FLD进展.
- Pb暴露加剧了肝脏脂毒性和LPS介导的炎症.
- 观察到肠道微生物群疾病和肠道屏障功能受损.
结论:
- 联合Pb和HFD暴露会恶化肝脏脂毒性和炎症.
- 肠道微生物群失调和肠道屏障功能受损是FLD进展的关键.
- 准肠道微生物群可能为肥胖个体的Pb诱导性肝病提供治疗策略.
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