对地中海饮食和运动的表型特异性线粒体反应在老年肥胖中
Paloma Carrillo-Fernández1, María Ángeles Silva-Soto2, Rocío Gallego-Durán1,3
1UCM Digestive Diseases, Virgen del Rocío University Hospital, Instituto de Biomedicina de Sevilla (HUVR/CSIC/US), Department of Medicine, University of Seville, 41004 Seville, Spain.
Nutrients
|February 13, 2026
概括
在老年人中,代谢不健康的肥胖 (MUO) 显示了线粒体功能障碍. 改变生活方式改善了MUO.
科学领域:
- 老年学是指老年学的学科.
- 代谢健康 代谢健康
- 线粒体生物学 线粒体生物学
背景情况:
- 肥胖症呈现为代谢健康的肥胖症 (MHO) 或代谢不健康的肥胖症 (MUO).
- 对于老年人来说,了解表型特异性对生活方式修改 (LSM) 的反应至关重要.
- 线粒体功能可能在MHO和MUO表型之间有所不同.
研究的目的:
- 研究MHO和MUO表型对老年人12个月的生活方式修改干预的线粒体反应的影响.
- 将线粒体蛋白质,临床参数和营养摄入量在LSM后的MHO和MUO组之间的变化进行比较.
- 为了确定饮食,体力活动和线粒体功能之间的表型特定关联.
主要方法:
- 进行了一项为期12个月的生活方式修改 (LSM) 干预,涉及地中海饮食和体力活动 (PA).
- 43名老年人根据世卫组织的标准被归类为MHO或MUO.
- 线粒体蛋白质 (OPA1,MFN2,PINK1,TFAM,COX IV) 在外围血液单核细胞中使用西斑和RT-qPCR进行了分析.
主要成果:
- 基线MUO表现出较低的线粒体融合和生物发生蛋白 (OPA1-L,MFN2,TFAM) 和增加的线粒体的标志物 (PINK1).
- 在LSM之后,MUO在代谢特征中表现出更大的改善,包括减少MFN2降解产物和增加COX IV.
- 观察到表型特定的关联:蛋白质/胆固醇摄入改善了MUO中的MFN2,而碳水化合物摄入对MHO中的OPA1产生了负面影响. 在这两组中,PA对融合蛋白产生了积极的影响.
结论:
- 肥胖的老年人根据他们的代谢表型 (MHO与MUO) 呈现出明显的线粒体损伤.
- 改变生活方式的干预措施在线粒体功能和临床参数方面产生了表型特定的改善.
- 根据代谢表型定制LSM干预措施对于优化肥胖的老年人健康结果至关重要.
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