Causal relationship between serum urate and asthma: a Mendelian randomization study.

IF 1.3 4区 医学 Q3 ALLERGY
Journal of Asthma Pub Date : 2025-09-01 Epub Date: 2025-04-30 DOI:10.1080/02770903.2025.2495734
Guobing Jia, Tao Guo, Lei Liu, Chengshi He
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引用次数: 0

Abstract

Background: Previous studies have suggested that elevated urate levels may increase the risk of asthma; however, the nature of this association remains debated. To clarify this uncertainty, we conducted a Mendelian randomization (MR) study to investigate the potential causal relationship.

Methods: Summary statistics for urate were sourced from the Global Urate Genetics Consortium (GUGC), and those for asthma were obtained from the FinnGen database. Genetic variants strongly associated with urate were selected as instrumental variables (IVs). Univariable and multivariable MR analyses were conducted to investigate the causal relationship between urate and asthma. Subsequently, network MR analyses were performed to reveal the mediating role of urate in the relationship between body mass index (BMI) and asthma.

Results: The univariable MR analysis showed that urate was associated with an increased risk of asthma (IVW OR = 1.13, 95%CI = 1.04-1.23, p = 0.004). This causal relationship remained consistent in multivariable MR analyses, even after adjusting for potential confounders, including smoking initiation, cigarettes per day, alcohol intake frequency, BMI, allergic rhinitis, and gastroesophageal reflux disease (GERD). Furthermore, network MR analyses demonstrated that the proportion of causal effect between BMI and asthma mediated by urate was 18.05% (95%CI = 6.23%-29.88%).

Conclusion: Our study confirms that serum urate is associated with an increased risk of asthma, suggesting its potential as a target for both prevention and treatment. Additionally, our findings indicate that urate partially mediates the relationship between BMI and asthma, emphasizing its role in the mechanism underlying BMI-induced asthma.

血清尿酸与哮喘的因果关系:孟德尔随机研究。
背景:先前的研究表明,尿酸水平升高可能会增加哮喘的风险;然而,这种联系的性质仍然存在争议。为了澄清这种不确定性,我们进行了一项孟德尔随机化(MR)研究,以调查潜在的因果关系。方法:尿毒症的统计数据来源于全球尿毒症遗传联盟(GUGC),哮喘的统计数据来源于FinnGen数据库。选择与尿酸盐密切相关的遗传变异作为工具变量(IVs)。单变量和多变量MR分析探讨尿酸与哮喘之间的因果关系。随后,进行网络磁共振分析,以揭示尿酸盐在体重指数(BMI)和哮喘之间的关系中的中介作用。结果:单变量MR分析显示尿酸与哮喘风险增加相关(IVW OR = 1.13, 95%CI = 1.04-1.23, p = 0.004)。这种因果关系在多变量MR分析中保持一致,即使在调整了潜在的混杂因素后,包括吸烟开始、每天吸烟、饮酒频率、BMI、过敏性鼻炎和胃食管反流病(GERD)。此外,网络MR分析表明,BMI与尿酸介导的哮喘之间的因果关系比例为18.05% (95%CI = 6.23%-29.88%)。结论:我们的研究证实,血清尿酸与哮喘风险增加有关,提示其作为预防和治疗的潜在靶点。此外,我们的研究结果表明,尿酸盐部分介导BMI和哮喘之间的关系,强调其在BMI诱发哮喘的机制中的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Asthma
Journal of Asthma 医学-过敏
CiteScore
4.00
自引率
5.30%
发文量
158
审稿时长
3-8 weeks
期刊介绍: Providing an authoritative open forum on asthma and related conditions, Journal of Asthma publishes clinical research around such topics as asthma management, critical and long-term care, preventative measures, environmental counselling, and patient education.
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