运动在高脂肪饮食的雄性和雌性小鼠中具有不同的心脏代谢效应
L E Watson1,2,3, M Annandale2, C L MacRae1
1Department of Nutrition, University of Auckland, Auckland, New Zealand.
Physiological reports
|January 28, 2026
概括
在高脂肪饮食的雄性和雌性小鼠中,运动对心脏代谢健康的益处不同. 女人显示脂肪量减少和心脏功能改善,而男性有轻微的胰岛素耐受性改善,突出性别特异性对运动的反应.
科学领域:
- 心血管生物学 心血管生物学
- 代谢性疾病研究研究
- 运动生理学 运动生理学
背景情况:
- 运动反应的性别差异已知,但它们对心脏代谢疾病的影响尚不清楚.
- 高脂肪饮食 (HFD) 模拟心脏代谢疾病,但性别特异性运动效应需要研究.
研究的目的:
- 研究自愿运动对饮食诱导的心脏代谢疾病的小鼠葡萄糖代谢,脂肪组织和心脏功能的性别特异性影响.
主要方法:
- 雄性和雌性小鼠被食高脂肪饮食 (HFD),并获得运行轮.
- 评估了运动耐受性,身体/脂肪质量,胰岛素耐受性,炎症标志物和心脏功能.
- 分析了心肌细胞尺寸和炎症细胞透.
主要成果:
- 运动改善了两性运动耐受性,尽管女性的跑步距离更高.
- 运动减少了女性的身体和脂肪质量,但不是男性.
- 女人心脏透静功能有所改善;女性心肌细胞尺寸增加,男性心肌细胞尺寸减少.
- 在两性中都观察到抗炎作用,但涉及不同的细胞类型和组织.
结论:
- 运动在疾病环境中引起性别特异性心脏代谢益处.
- 与男性相比,女性在身体组成和心脏功能方面获得了更大的好处.
- 了解这些性别差异对于针对心脏代谢疾病的量身定制的运动干预措施至关重要.
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