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JCEM:体重与端粒长度之间的关联主要通过C反应蛋白介导

2021-07-01 MedSci原创 MedSci原创

BMI-LTL之间的负性关联部分由肥胖引起的炎症所介导。

近日,内分泌和代谢性疾病领域权威杂志Journal of Clinical Endocrinology & Metabolism上发表了一篇研究文章,研究人员旨在剖析体重指数(BMI)对白细胞端粒长度(LTL)的直接影响及其通过C反应蛋白(CRP)对LTL的间接影响,以确定CRP对BMI-LTL之间关联的介导作用。


 
该研究队列纳入了来自1999-2002年期间国家健康和营养评估调查的5451名成年人(1404名墨西哥裔美国人、3114名白人和933名黑人;53.5%为男性;平均年龄为49.2岁)。研究人员使用一般介导模型来评估CRP对BMI-LTL之间关联的介导效应。


 
在调整年龄、种族、性别、体力活动、饮酒和血清可替宁浓度后,BMI对LTL的总体效应较为显著(标准化回归系数,β=-0.054,p<0.001),该模型中未包含CRP。

BMI和CRP对LTL的标准化回归系数

当模型中加入CRP后,BMI通过CRP对LTL的间接影响估计值β=-0.023(p<0.001),BMI对LTL的直接效应的绝对值降低为β=-0.031(p=0.025)。CRP的介导效应估计为42.6%。介导模型参数在种族和性别组之间没有显著差异。
 
这些结果表明,BMI-LTL之间的负性关联部分由肥胖引起的炎症所介导

原始出处:

Xiao Gao.et al.Association between Body Weight and Telomere Length is Predominantly Mediated through C-Reactive Protein.JCEM.2021.https://doi.org/10.1210/clinem/dgab455

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    2021-12-28 smallant2015
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    2021-08-14 achengzhao
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