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运动通过AMPK-PGC-1α/dLipin改善高脂肪饮食引起的脂质代谢和心脏功能障碍

Yuepeng Li¹, Meng Ding¹, Wenqing Huang¹

¹Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China.

|November 3, 2025

概括

运动可以对抗高脂肪饮食对心脏的影响. 它激活AMPK-PGC-1α通路,抑制dLipin以改善脂质代谢和心脏功能,为与肥胖有关的心血管疾病提供新的策略.

科学领域:

心血管科学心血管科学
代谢调节代谢调节代谢调节
运动生理学运动生理学

背景情况:

高脂肪饮食 (HFD) 消费是心血管疾病 (CVD) 风险的主要贡献者,诱导脂质代谢异常和心脏功能障碍.
虽然已知运动可以减轻这些影响,但其益处背后的精确分子机制在很大程度上仍未被阐明.

研究的目的:

研究运动改善HFD诱导的脂质代谢异常和心脏功能障碍的分子机制.
探索AMPK-PGC-1α信号通路和dLipin在Drosophila模型中调解运动的心脏保护作用中的作用.

主要方法:

利用Drosophila melanogaster作为模型生物来研究HFD诱导的代谢和心脏变化.
研究了运动干预对脂质积累,心脏功能和关键分子通路的影响,包括AMPK-PGC-1α和dLipin.
进行了淘汰实验,以确认dLipin和PGC-1α在调解运动的保护作用中的作用.

主要成果:

在中,HFD诱导了显著的脂质积累,心脏收缩能力受损和心律失常,与增加的dLipin表达和抑制的AMPK-PGC-1α信号相关.
运动干预激活了AMPK-PGC-1α轴,导致DLipin的转录抑制,从而改善了HFD诱导的脂质异常和心脏功能障碍.
抑制心肌细胞中的dLipin可以保护心肌细胞免受HFD引起的损伤,而抑制PGC-1α则消除了运动的益处.

结论:

运动通过激活AMPK-PGC-1α/dLipin通路来改善HFD诱导的脂质代谢异常和心脏功能障碍.
这一途径代表了管理与肥胖有关的心血管疾病的新型治疗标.

关键词:

在 AMPK-PGC-1α/dLipin 中.心脏功能障碍是因为心脏功能障碍.这种植物是Drosophila.运动运动运动.有高脂肪的饮食.脂质代谢脂质代谢是一种

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