Osteoporosis International

, Volume 21, Issue 8, pp 1351–1360 | Cite as

Fracture, bone mineral density, and the effects of calcitonin receptor gene in postmenopausal Koreans

  • H.-J. Lee
  • S.-Y. Kim
  • G. S. Kim
  • J.-Y. Hwang
  • Y.-J. Kim
  • B. Jeong
  • T.-H. Kim
  • E. K. Park
  • S. H. Lee
  • H.-L. Kim
  • J.-M. Koh
  • J.-Y. Lee
Original Article

Abstract

Summary

In a candidate gene association study, we found that the variations of calcitonin receptor (CALCR) gene were related to the risk of vertebral fracture and increased bone mineral density (BMD).

Introduction

Calcitonins through calcitonin receptors inhibit osteoclast-mediated bone resorption and modulate calcium ion excretion by the kidney and also prevent vertebral bone loss in early menopause.

Methods

To identify genetically susceptible factors of osteoporosis, we discovered the variations in CALCR gene, genotyped in Korean postmenopausal women (n = 729), and examined the potential involvement of seven single-nucleotide polymorphism (SNPs) and their haplotypes in linkage disequilibrium block (BL_hts).

Results

The SNPs, +43147G > C (intron 7), +60644C > T (exon13, 3' untranslated region), and their haplotypes, BL2_ht1 and BL2_ht2, showed a significant association with risk of vertebral fracture (p = 0.048–0.004) and BL2_ht1 showed a highly significant protective effect. Moreover, the polymorphism +60644C > T showed a highly significant association with BMD at both lumbar spine and femoral neck. The subjects carrying CC and CT genotypes with the SNP, +60644C > T, had higher BMD values at the lumbar spine (p = 0.01–0.001) and femoral neck (p = 0.025–0.009).

Conclusion

These results indicate that the CALCR gene may regulate bone metabolism, and +60644C > T in the CALCR gene may genetically modulate bone phenotype.

Keywords

Bone mineral density CALCR Fracture SNP Postmenopause 

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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2009

Authors and Affiliations

  • H.-J. Lee
    • 1
    • 2
  • S.-Y. Kim
    • 3
    • 4
  • G. S. Kim
    • 3
    • 5
  • J.-Y. Hwang
    • 1
  • Y.-J. Kim
    • 1
  • B. Jeong
    • 1
  • T.-H. Kim
    • 3
    • 6
  • E. K. Park
    • 3
    • 6
  • S. H. Lee
    • 3
    • 5
  • H.-L. Kim
    • 1
  • J.-M. Koh
    • 3
    • 5
  • J.-Y. Lee
    • 1
    • 7
  1. 1.The Center for Genome ScienceNational Institute of HealthSeoulRepublic of Korea
  2. 2.The Center for Biomedical SciencesNational Institute of HealthSeoulRepublic of Korea
  3. 3.Skeletal Diseases Genome Research CenterKyungpook National University HospitalJung-guRepublic of Korea
  4. 4.Department of Orthopedic SurgeryKyungpook National University School of MedicineJung-guRepublic of Korea
  5. 5.Division of Endocrinology and MetabolismUniversity of Ulsan College of Medicine, Asan Medical CenterSeoulRepublic of Korea
  6. 6.Department of Pathology and Regenerative Medicine, School of DentistryKyungpook National University188-1, Samduk 2-gaJung-guRepublic of Korea
  7. 7.Eunpyung-GuRepublic of Korea

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