关键词: 维生素D, 骨密度, 甲状旁腺激素

Abstract: Objective To investigate the vitamin D level of elder people in Guangzhou and the relationship in vitamin D, bone mineral density and parathyroid hormone. Methods To screening elderly patients in the geriatric department of Guangzhou First peoples Hospital from June to December 2016.Serum 25-hydroxy vitamin D,parathyroid hormone,procollagen typeⅠN-terminal propeptide,β-crosslaps of C-telopeptide of typeⅠcollagen,bone mineral density were measured.Three groups were divided according to the serum 25(OH)D level,including deficiency group(≤20 ng/mL),insufficiency group(20-30 ng/mL) and sufficiency group(≥30 ng/mL). Results The mean age of the 426 subjects was 79.77±7.69 years old. The average level of 25(OH)D was 20.38±8.20 ng/mL. The proportion of vitamin D deficiency, insufficient and sufficient persons were 53% (226/426), 34.3% (146/426), and 12.7% (54/426). The level of 25 hydroxy vitamin D was decreased with age.Correlation analysis showed that 25 hydroxy vitamin D level was positive correlated with the femoral neck and total hip bone density(r=0.18,P＜0.001),was negatively correlated with parathyroid hormone(r=-2.05,P＜0.001). Conclusion Vitamin D deficiency or insufficiency is highly prevalent in elderly men in Guangzhou.25 hydroxy vitamin D level was positive correlated with the femoral neck and total hip bone density, negatively correlated with parathyroid hormone.

Key words: Vitamin D, Bone mineral density, Parathyroid hormone