Relationship between VDR gene polymorphism and BMD in elderly male patients with COPD / 中华老年医学杂志

ABSTRACT

Objective To investigate the association between the genetic polymorphisms of vitamin D receptor(VDR)and bone mineral density (BMD) in elderly male patients with chronic obstructive pulmonary diseases. Methods Pulmonary function, body mass index(BMI), serum calcium, serum phosphorus and bone glaprotein were determined respectively in COPD group and control group. In the two groups the VDR gene polymorphisms were analyzed by polymerase chain reaction and restriction fragment length polymorphism (PCR RFLP) and BMD were investigated by dual energy X ray bone mineral density. Results There were differences in BMD, BMI and bone glaprotein between the two groups. The BMI, bone glaprotein and BMD of femur neck in COPD group were(22 65?3 18)kg/m 2 ,(2 50?0 57) ?g/L and(0 75?0 13)g/cm 2 respectively, which were more decreased than those in control group BMI (24 86?3 68)kg/m 2 , bone glaprotein (2 87?0 61) ?g/L and BMD of femur neck (0 86?0 12) g/cm 2 ( P