title: Association of CYP19 gene polymorphism with vertebral fractures in Japanese postmenopausal women.
abstract: This study investigates aromatase gene polymorphism, which might influence bone strength in terms of mineral density and quality. We explored the relationship between CYP19 polymorphisms and vertebral fractures in postmenopausal Japanese women. In addition, we compared estrogen and testosterone levels in Japanese postmenopausal women with and without fractures. Osteoporotic postmenopausal women showed higher incidences of vertebral fractures than osteopenic women or women with normal lumbar bone mineral density (L2-4 BMD). Estrogen concentrations in postmenopausal women were associated with BMD; however, no association was found between sex hormone levels and the presence of fractures. The C allele rs2470152 was significantly associated with increased risk of vertebral fractures (P = 0.04), whereas none of the CYP19 polymorphisms showed differences in sex steroid levels between subjects with and without fractures. Allelic variants of aromatase genes appear to interact to influence the risk of vertebral fractures in postmenopausal Japanese women.
authors.affiliation: Department of Endocrinology and Metabolism, Tokyo Metropolitan Toshima Hospital, 33-1 Sakaecho Itabashiku, Tokyo, 173-0015, Japan.
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Koudu
authors.forename: Tsuneko
authors.initials: T
authors.lastname: Onouchi
authors.forename: Takayuki
authors.initials: T
authors.lastname: Hosoi
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Horiuchi
mesh_terms: D000368:Aged; D000483:Alleles; D001141:Aromatase / Q000235:genetics*; D044466:Asian People / Q000235:genetics*; D015519:Bone Density / Q000235:genetics; D005260:Female; D050723:Fractures, Bone / Q000453:epidemiology / Q000235:genetics; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D015663:Osteoporosis, Postmenopausal / Q000235:genetics*; D011110:Polymorphism, Genetic; D017698:Postmenopause / Q000235:genetics*; D016103:Spinal Fractures / Q000453:epidemiology / Q000208:ethnology / Q000235:genetics*
chemical_list: D001141:Aromatase