Proton pump inhibitors use and the risk of osteoporosis and fractures: A two-sample Mendelian randomization study
Abstract
The causal relationship between proton pump inhibitor (PPI) use and bone health outcomes remains uncertain. This study employs a Mendelian randomization (MR) approach to investigate the potential causal association between PPI use and the risk of osteoporosis and fractures. We selected 4 representative PPIs, including omeprazole, esomeprazole, lansoprazole, and rabeprazole, for our study. Bone health outcomes were evaluated through femoral neck bone mineral density (BMD), lumbar spine BMD, and the prevalence of osteoporosis and fracture across various anatomical sites, including the upper arm and shoulder, wrist and hand, lumbar spine and pelvis, femur, and lower leg and ankle. To evaluate PPI exposure and bone health outcomes, we utilized summary statistics derived from genome-wide association studies conducted in European ancestry populations. Primary causal estimates were derived using the inverse-variance weighting (IVW) approach, supplemented by MR-Egger, weighted median, and Mendelian Randomization Pleiotropy Residual Sum and Outlier methods. To strengthen the robustness of our findings, we conducted sensitivity analyses encompassing assessments of heterogeneity, horizontal pleiotropy, and leave-one-out analyses. Lansoprazole demonstrated a significant positive causal effect on femoral neck BMD (IVW: β = 0.137, 95% confidence interval: 0.063-0.210, P = 2.73E-04), whereas no statistically significant effects were observed for lansoprazole on lumbar spine BMD,…
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