■肠道菌群与间质性膀胱炎之间的相关性在先前的研究中引起了极大的关注。然而,两者之间的因果关系还有待澄清。
■遗传变异是孟德尔随机化分析的工具,有助于推断暴露因素与疾病结局之间的因果关系。在这项研究中,来自MiBioGen联盟进行的全面全基因组关联研究的汇总统计数据被用作暴露因子,而来自GWAS目录的间质性膀胱炎数据作为疾病结局。然后,通过应用逆方差加权,进行了双样本孟德尔随机化分析,MR-Egger,加权中位数,简单模式,和加权模式。此外,通过敏感性分析排除异质性和水平多效性.
■IVW结果证实,嗜血杆菌属(OR=2.20,95%CI:1.16-4.15,p=0.015),丁香属(OR=2.26,95%CI:1.15-4.45,p=0.018),拟杆菌属(OR=4.27,95%CI:1.36-13.4,p=0.013)和Coprococus1(OR=3.39,95%CI:1.28-8.99,p=0.014)对间质性膀胱炎有风险影响。敏感性分析未发现异常SNP。
■我们的分析确定了特定属与间质性膀胱炎之间的因果关系。然而,通过随机对照试验进行进一步验证对于证实这些发现至关重要.
UNASSIGNED: The correlation between gut microbiota and interstitial cystitis has garnered significant attention in previous studies. Nevertheless, the causal relationship between them remains to be clarified.
UNASSIGNED: Genetic variation serves as a tool in Mendelian randomization analyses, facilitating the inference of causal relationships between exposure factors and disease outcomes. In this study, summary statistics derived from a comprehensive genome-wide association study conducted by the MiBioGen consortium were utilized as exposure factors, while interstitial cystitis data sourced from the GWAS Catalog served as the disease outcome. Then, a two-sample Mendelian randomization analysis was performed by applying inverse variance-weighted, MR-Egger, Weighted Median, Simple Mode, and Weighted Mode. In addition, heterogeneity and horizontal pleiotropy were excluded by sensitivity analysis.
UNASSIGNED: IVW results confirmed that genus Haemophilus (OR = 2.20, 95% CI: 1.16-4.15, p = 0.015), genus Butyricimonas (OR = 2.26, 95% CI: 1.15-4.45, p = 0.018), genus Bacteroides (OR = 4.27, 95% CI: 1.36-13.4, p = 0.013) and Coprococcus1 (OR = 3.39, 95% CI: 1.28-8.99, p = 0.014) had a risk effect on interstitial cystitis. Sensitivity analysis did not find outlier SNPs.
UNASSIGNED: Our analysis has identified a causal relationship between specific genera and interstitial cystitis. However, further validation through randomized controlled trials is essential to substantiate these findings.