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高密度脂蛋白脂质和蛋白质载荷和胆固醇排泄能力在腹手术前后
Sohail Zahid1, Florencia Schlamp2, Michael A Gildea2
1Department of Medicine, Leon H. Charney Division of Cardiology (S.Z., B.-X.L., A.C., M.F., E.A.F., S.P.H.), New York University Langone Medical Center.
Arteriosclerosis, thrombosis, and vascular biology
|January 2, 2025
概括
腹腔外科手术显著改变高密度胆固醇蛋白和脂质载荷,影响胆固醇外流能力 (CEC). 这些变化在RYGB和SG程序之间是不同的,可能会调解肥胖症中心血管风险的降低.
科学领域:
- 心血管科学 心血管科学
- 代谢健康 代谢健康
- 腹部外科手术的结果
背景情况:
- 高密度脂蛋白 (HDL) 的胆固醇外流能力 (CEC) 对于心血管健康至关重要,独立于高密度脂蛋白胆固醇水平.
- 肥胖与HDL功能下降有关,包括CEC受损.
- 减肥手术可以改善心血管结果,但RYGB和SG对HDL胆固醇和CEC有不同的影响.
研究的目的:
- 调查Roux-en-Y胃绕道 (RYGB) 和袖子胃切除术 (SG) 对HDL蛋白和脂质载荷的影响.
- 探索这些货物变化与 CEC 的变化之间的关联.
- 为了比较RYGB和SG对HDL组成和功能的影响.
主要方法:
- 对非糖尿病,绝经前的西班牙裔严重肥胖妇女进行RYGB (n=31) 或SG (n=36) 的前性研究.
- 在手术前和手术后6个月和12个月收集的人类测量和血液样本.
- 使用液体染色学-并联质谱法 (LC-MS/MS) 进行分离的HDL的蛋白质和脂质分析;评估出体CEC.
主要成果:
- 在12个月后,RYGB和SG都导致显著的体重减轻 (38.0±10.4公斤).
- 在这两种手术后,观察到HDL蛋白 (47种蛋白质) 和脂质 (150种脂质) 货物的显著变化.
- 网络分析表明,特定的蛋白质和脂质调解了ABCA1依赖和非ABCA1CEC的变化,对SG和RYGB有不同的调解者.
结论:
- 腹腔外科手术深刻地改变了HDL的脂质和蛋白质组成.
- 这些HDL货物的修改与CEC的变化有关,CEC是心血管风险的关键标志物.
- 了解这些RYGB后和SG后的独特机制可以为未来的肥胖心血管风险降低策略提供信息.
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