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Related Experiment Videos

Association between LRP5 polymorphism and bone mineral density: a Bayesian meta-analysis.

Bich N H Tran1, Nguyen D Nguyen, John A Eisman

  • 1Bone and Mineral Research Program, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, Australia. b.tran@garvan.org.au

BMC Medical Genetics
|July 1, 2008
PubMed
Summary

The LRP5 gene A1330V polymorphism shows a modest association with bone mineral density (BMD) in the general population. This finding suggests limited clinical utility for predicting BMD variations based on this specific genetic marker.

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Area of Science:

  • Genetics
  • Bone Biology
  • Population Health

Background:

  • The low-density lipoprotein receptor-related protein 5 (LRP5) gene is implicated in bone mineral density (BMD) variations.
  • Previous studies on the LRP5 gene and BMD association have produced conflicting results.
  • A meta-analysis is needed to clarify the relationship between LRP5 and BMD.

Purpose of the Study:

  • To conduct a meta-analysis examining the association between the LRP5 gene and BMD.
  • To synthesize data from published studies on LRP5 gene polymorphisms and osteoporosis-related phenotypes.

Main Methods:

  • Systematic electronic literature search for English studies on LRP5 gene and BMD.
  • Random-effects meta-analyses were used to synthesize BMD data by LRP5 genotype.

Related Experiment Videos

  • Included 19 studies, with 10 focusing on the rs3736228 (A1330V) polymorphism and BMD.

    • Main Results:

    • Meta-analysis of 10 studies (16,705 individuals) revealed higher lumbar spine BMD (0.018 g/cm²) and femoral neck BMD (0.011 g/cm²) in individuals with the AA genotype compared to AV or VV genotypes.
    • Genotype frequencies varied significantly across ethnic populations.
    • No significant heterogeneity was found for lumbar spine BMD association, but heterogeneity was observed for femoral neck BMD.

    Conclusions:

    • The A1330V polymorphism in the LRP5 gene has a modest effect on BMD in the general population.
    • The observed modest association may limit its clinical application for predicting BMD.
    • Further research may be needed to explore other LRP5 variants or their interactions.