alexa HMG-CoA reductase inhibitors (statins) and bone mineral density: a meta-analysis.
Medicine

Medicine

Internal Medicine: Open Access

Author(s): Liu J, Zhu LP, Yang XL, Huang HL, Ye DQ

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Abstract CONTEXT: The association between 3-hydroxy-3methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) and bone mineral density (BMD) is controversial because of conflicting findings from previous studies. OBJECTIVE AND DESIGN: The purpose of the present study was to evaluate the effect of statins on BMD reported in randomized and non-randomized controlled trials. We searched PubMed and Embase, using text, medical subject headings (MeSH) and keywords "bone mineral density" and "statins" or "HMG-CoA reductase inhibitors". Our last PubMed and Embase queries were updated to August 2012. Data on participants, interventions, and outcomes from each study were abstracted independently by two authors. RESULTS: Five case-control studies, six cohort studies and four randomized controlled trials (RCTs) met the inclusion criteria. Included studies involved 34,877 subjects (3824 in the intervention group and 31,053 in the control group) in 12 different countries with ages ranging from 44 to 66 years. Statins significantly increased BMD at lumbar spine [standardized mean difference (SMD) 0.15, 95\% CI 0.09-0.22], total hip (SMD 0.22, 95\% CI 0.17-0.27) and femoral neck (SMD 0.19, 95\% CI 0.09-0.29). We carried out subgroup analyses on selected populations of the cohorts. Statistically significant increases were also observed in the lumbar spine (SMD 0.12, 95\% CI 0.04-0.21), total hip (SMD 0.23, 95\% CI 0.17-0.28) and femoral neck BMD (SMD 0.22, 95\% CI 0.08-0.36). CONCLUSION: The results of this study suggest that statins may help improve and maintain BMD at the lumbar spine, hip and femoral neck, especially in Caucasians and Asians. It also provides justification for prospective RCTs to evaluate the possible role of statins in BMD in different ethnic populations, such as Latin American and Africans. Copyright © 2013 Elsevier Inc. All rights reserved. This article was published in Bone and referenced in Internal Medicine: Open Access

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