在健康个体中,腰围和脏血动力学之间的关系
Agnes Bosch1, Dennis Kannenkeril1, Christian Ott2
1Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Germany.
Nutrition, metabolism, and cardiovascular diseases : NMCD
|November 24, 2023
概括
在健康人群中,更高的腰围 (WC) 与功能减弱有关,包括较低的膜过率 (GFR) 和性血流量 (RPF). 这可能是由于血管抵抗 (RVR) 的增加.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 代谢健康 代谢健康
- 心血管生理学心血管生理学
背景情况:
- 肥胖是慢性病 (CKD) 的已知危险因素之一.
- 由腰围 (WC) 估计的内脏脂肪对健康个体脏血液动力学的具体影响尚不清楚.
- 研究内脏脂肪,代谢因素和功能之间的相互作用至关重要.
研究的目的:
- 为了检查腰围 (WC) 和健康,非肥胖个体的脏血液动力学概况之间的关系.
- 为了确定内脏脂肪质量的增加是否会影响淋巴细胞过率 (GFR),脏血流量 (RPF) 和内压力.
- 探索代谢因素,如勒和HOMA-IR在这种关联中的作用.
主要方法:
- 从一项随机临床试验中对80名健康参与者的后期分析.
- 根据WC的中位数,将参与者分为高WC和低WC组.
- 使用稳定状态输入清除 (亚米诺基浦酸和胰岛素输注) 评估脏血液动力学概况.
- 使用戈麦斯方程计算球膜内压力 (IGP) 和动脉阻力 (RA,RE).
主要成果:
- 高WC组与低WC组相比,显著降低了GFR,RPF和IGP.
- 患有高WC的个体表现出血管抵抗 (RVR), afferent动脉阻抗 (RA) 和efferent动脉阻抗 (RE) 的增加.
- 在高WC组中观察到较高的瘦素水平和HOMA-IR.
结论:
- 在健康的年轻人中,增加WC与脏血液动力学受损有关.
- 较高WC个体的减少GFR和RPF可能由血管抵抗增加的介导.
- 即使在非肥胖个体中,内脏脂肪的积累也会对功能产生负面影响.
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