Association between visceral adipose tissue and asthma based on the NHANES and Mendelian randomization study

孟德尔随机化 医学 优势比 肥胖 哮喘 风险因素 逻辑回归 置信区间 内科学 遗传学 基因型 遗传变异 基因 生物
作者
Ping Yin,Tao Shu,Zixuan Xing,Shenglin Luo,Zhiluo Yang,Zihan Xue,Runze Yang,Luyu Liu,Shaobo Wu,Gloria Juan
出处
期刊:Postgraduate Medical Journal [BMJ]
标识
DOI:10.1093/postmj/qgae031
摘要

Obesity is a crucial risk factor for asthma. Observational studies have examined the association between abdominal obesity and asthma symptoms. This study aimed to investigate the causal relationship between visceral adipose tissue (VAT) and asthma and its potential as an independent indicator.This study utilized data from the National Health and Nutrition Examination Survey spanning 2011-8. Multivariable logistic regression and stratified variable selection were employed to identify associations between asthma and VAT. Moreover, a two-sample Mendelian randomization analysis, using 221 genetic variants as instrumental variables, was conducted to assess this relationship further.Our findings indicated that individuals with higher VAT levels were more likely to develop asthma. Visceral obesity remained a significant risk factor for asthma after adjusting for demographic characteristics. Genetic predictions suggest a positive association between VAT and an elevated risk of asthma (odds ratio [OR] = 1.393, 95% confidence interval [CI]: 1.266-1.534, and P = 1.43E-11). No significant polymorphisms were detected using the Mendelian randomization-Egger intercept test.This study presents potential evidence supporting the causal role of VAT in asthma development. Furthermore, the findings from the Mendelian randomization analysis further reinforce the relationship between VAT and asthma risk.
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