بررسی ارتباط پلی مورفیسم Fok1 گیرنده ویتامین D3 با تراکم استخوان در زنان یائسه مبتلا به استئوپروز

Background and purpose: Osteoporosis is a multiple disease that is characterized by decrease in bone mass and bone strength. This decrease is more common in postmenopausal women due to decreased estrogen levels. Vitamin D3 plays a pivotal role in skeletal metabolism by binding to nuclear steroid receptors (receptors for vitamin D (VDR)). This study aimed at investigating the relationship between Vitamin D3 receptor polymorphism and estrogen levels in postmenopausal women with severe osteoporosis. Material and methods: The study population were 173 women including 91 postmenopausal women with osteoporosis and 82 women without osteoporosis (control group) aged 45-60 years of old. The study was carried out during 2011-2012. After extraction of genomic DNA from peripheral blood, FokI polymorphism (rs2228570) of the Vitamin D Receptor Gene (VDR) was investigated using polymerase chain reaction with restriction enzyme digestion (PCR-RFLP) method. Also, its relationship with bone mineral density (Bone Mineral Density) BMD, T-score, and Z-score was investigated. Results: According to the results, there was no association between rs2228570 and osteoporosis. We observed significant differences in bone density between the two groups (P<0.001). Conclusion: According to the findings, the association between genotype polymorphisms of vitamin D3 and osteoporosis is still unknown and other polymorphisms might affect bone density.