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Vitamin D receptor gene polymorphisms and bone mineral density in postmenopausal Indian women.
Maturitas. 2006 Aug 20; 55(1):27-35.M

Abstract

OBJECTIVES

Osteoporosis is a common condition in postmenopausal women. Bone mineral density (BMD), the major determinant of osteoporotic fracture risk, has a particular genetic background. However, consensus on the association of BMD with specific gene locus has not been reached. The race and ethnicity specific divergence in association studies must be assessed to predict the susceptibility and therapeutic response of associated genes. We investigated the potential association of Vitamin D receptor (VDR) gene polymorphisms ApaI, BsmI, FokI and TaqI with BMD in 246 postmenopausal Indian women (average age 54.2+/-3.4 years).

METHODS

The subjects were genotyped by PCR-RFLP and underwent BMD measurements at spine and hip by dual energy X-ray absorptiometery.

RESULTS

The average BMD at spine and hip of women with genotypes aa, bb (presence of restriction sites for ApaI and BsmI), FF and TT (absence of restriction sites for FokI and TaqI) was more than 10% higher than those with genotypes AA, BB, ff and tt, respectively. The interaction between BsmI, ApaI and TaqI genotypes showed significant effect of BsmI-ApaI genotypes (p=0.052) in this combination on BMD. However, presence of T allele in combination showed positive influence on BMD. Within the group, genotypes BB, ff and tt were significantly prevalent in women with osteoporotic bone mass, tt and BB had significantly higher adjusted odd ratio (OR) for age more than 55years.

CONCLUSION

Study reveals that VDR gene polymorphisms are associated with BMD in Indian women and perhaps, influence some determinant of bone metabolism. Ethnicity may attribute to frequency variation, however, allele impact remains same.

Authors+Show Affiliations

Molecular Immuno-diagnostics Division, National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai 400012, India.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16464547

Citation

Mitra, Sumegha, et al. "Vitamin D Receptor Gene Polymorphisms and Bone Mineral Density in Postmenopausal Indian Women." Maturitas, vol. 55, no. 1, 2006, pp. 27-35.
Mitra S, Desai M, Ikram Khatkhatay M. Vitamin D receptor gene polymorphisms and bone mineral density in postmenopausal Indian women. Maturitas. 2006;55(1):27-35.
Mitra, S., Desai, M., & Ikram Khatkhatay, M. (2006). Vitamin D receptor gene polymorphisms and bone mineral density in postmenopausal Indian women. Maturitas, 55(1), 27-35.
Mitra S, Desai M, Ikram Khatkhatay M. Vitamin D Receptor Gene Polymorphisms and Bone Mineral Density in Postmenopausal Indian Women. Maturitas. 2006 Aug 20;55(1):27-35. PubMed PMID: 16464547.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Vitamin D receptor gene polymorphisms and bone mineral density in postmenopausal Indian women. AU - Mitra,Sumegha, AU - Desai,Meena, AU - Ikram Khatkhatay,M, Y1 - 2006/02/07/ PY - 2005/06/22/received PY - 2005/12/30/revised PY - 2006/01/03/accepted PY - 2006/2/9/pubmed PY - 2006/12/9/medline PY - 2006/2/9/entrez SP - 27 EP - 35 JF - Maturitas JO - Maturitas VL - 55 IS - 1 N2 - OBJECTIVES: Osteoporosis is a common condition in postmenopausal women. Bone mineral density (BMD), the major determinant of osteoporotic fracture risk, has a particular genetic background. However, consensus on the association of BMD with specific gene locus has not been reached. The race and ethnicity specific divergence in association studies must be assessed to predict the susceptibility and therapeutic response of associated genes. We investigated the potential association of Vitamin D receptor (VDR) gene polymorphisms ApaI, BsmI, FokI and TaqI with BMD in 246 postmenopausal Indian women (average age 54.2+/-3.4 years). METHODS: The subjects were genotyped by PCR-RFLP and underwent BMD measurements at spine and hip by dual energy X-ray absorptiometery. RESULTS: The average BMD at spine and hip of women with genotypes aa, bb (presence of restriction sites for ApaI and BsmI), FF and TT (absence of restriction sites for FokI and TaqI) was more than 10% higher than those with genotypes AA, BB, ff and tt, respectively. The interaction between BsmI, ApaI and TaqI genotypes showed significant effect of BsmI-ApaI genotypes (p=0.052) in this combination on BMD. However, presence of T allele in combination showed positive influence on BMD. Within the group, genotypes BB, ff and tt were significantly prevalent in women with osteoporotic bone mass, tt and BB had significantly higher adjusted odd ratio (OR) for age more than 55years. CONCLUSION: Study reveals that VDR gene polymorphisms are associated with BMD in Indian women and perhaps, influence some determinant of bone metabolism. Ethnicity may attribute to frequency variation, however, allele impact remains same. SN - 0378-5122 UR - https://www.unboundmedicine.com/medline/citation/16464547/Vitamin_D_receptor_gene_polymorphisms_and_bone_mineral_density_in_postmenopausal_Indian_women_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0378-5122(06)00005-3 DB - PRIME DP - Unbound Medicine ER -