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随着多omics的时间流程揭示了超脂血症在肠肝轴上调节了白天节律
Jinxing Su1, Shangquan Jiang1, Min Chu1
1Center for Stem Cell and Translational Medicine, School of Life Sciences and Medical Engineering, Anhui University, Hefei 230601, Anhui, China; Traditional Chinese Medicine Research Centre, School of Life Sciences and Medical Engineering, Anhui University, Hefei 230601, Anhui, China.
Genomics
|January 10, 2026
概括
高脂肪饮食破坏了身体的内部时钟,通过改变肠道微生物群和肝脏基因表达,导致超脂血症. 这项研究强调了肠肝轴在代谢疾病中的作用,并为新疗法提供了目标.
科学领域:
- * 时代生物学和代谢疾病研究.
- *研究饮食,昼夜节律和生理过程之间的相互作用.
- * 在代谢健康中探索肠肝轴.
背景情况:
- * 慢性高脂肪饮食消费与肥胖和高脂血症有关.
- * 循环节律调节关键的心血管和代谢功能.
- *饮食模式的干扰可以使身体的内部时钟失调.
研究的目的:
- * 在超脂血症小鼠模型中研究白天节律对肝脏和肠道的影响.
- * 确定参与昼夜新陈代谢调节的关键基因和微生物种群.
- *阐明肠肝轴在饮食引起的代谢失调中的作用.
主要方法:
- * 肝脏和肠道的转录基因组,代谢基因组和代谢基因组分析.
- * 利用超脂血症小鼠模型研究昼间节律效应.
- *分析了基因表达,肠道微生物群组成和代谢物概况.
主要成果:
- * 确定了通过肠肝轴调节代谢物的肝脏昼夜钟调节关键基因 (例如CD36,Hmgcs1).
- * 观察到肠道微生物群中的昼间节律,协调肠道消化和新陈代谢.
- * 已经证明,高脂血症会扰乱肝脏和肠道的昼夜调节,影响脂质代谢.
结论:
- *高脂肪饮食导致异常的脂质代谢基因表达,并扰乱肠道微生物群的昼夜节律.
- *代谢物作为信号分子,通过肠肝轴调节肝脂代谢基因.
- *节律性代谢物分泌的丧失会破坏昼夜基因表达,导致高脂血症.
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