身体脂肪分布和衰老:揭示关联和潜在的干预策略
Yu-Shuai Bai1, Shuai-Xin Yu1, Lin Xia1
1Department of Epidemiology and Statistics, School of Public Health, Hebei Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang, Hebei, China.
Nutrition (Burbank, Los Angeles County, Calif.)
|December 28, 2025
概括
精确的身体脂肪指标,特别是干脂肪,与生物衰老有关. 管理身体脂肪和增强肠道微生物群的多样性可能有助于延缓衰老.
科学领域:
- 老年学是一门学科.
- 代谢健康 代谢健康
- 营养科学 营养科学
背景情况:
- 体重指数 (BMI) 在评估与身体脂肪分布相关的健康风险方面存在局限性.
- 这项研究使用了详细的身体脂肪指标,如干脂肪质量和身体脂肪百分比.
- 研究精确的体脂指标与生物衰老之间的关联.
研究的目的:
- 检查各种身体脂肪分布指标与表型年龄 (PhenoAge) 之间的关系.
- 探索身体脂肪和生物衰老之间的潜在媒介和因果关系.
- 确定减轻身体脂肪对衰老的影响的策略.
主要方法:
- 分析国家健康和营养检查调查 (NHANES) 2015-2018年的数据.
- 权重线性回归,限制性立方线,子组,调解和门德尔随机化 (MR) 分析.
- 利用全基因组关联研究 (GWAS) 数据进行MR分析.
主要成果:
- 所有身体脂肪指标与PhenoAge正相关;干脂肪质量显示出最强的关联.
- 在性别,年龄组和BMI类别中观察到显著的相关性.
- C反应蛋白,全身免疫炎症指数和甘油三糖指数部分介导了这种关系. 核磁共振分析支持因果关系,肠道微生物群可能发挥作用.
结论:
- 身体脂肪管理,特别是减少干脂肪,对于预防衰老至关重要.
- 优化饮食模式以增强肠道微生物群的多样性可能会延迟生物衰老.
- 这些发现表明,通过饮食和肠道健康来进行衰老干预的新方法.
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