目的 探讨广州地区老年人维生素D水平及其与骨密度、甲状旁腺激素的相关性。方法 收集2016年6月—12月在广州市第一人民医院老年病科就诊的患者。检测25-羟维生素D、甲状旁腺激素、Ⅰ型前胶原氨基端前肽、β-Ⅰ型胶原C端肽、腰椎和髋部骨密度。将患者分为维生素D缺乏组(≤20 ng/mL)、维生素D不足组(20～30 ng/mL)、维生素D充足组(≥30 ng/mL)。结果 ①426例研究对象的平均年龄是(79.77±7.69)岁,25羟维生素D平均值是(20.38±8.20)ng/mL。维生素D缺乏、不足、充足者比例分别是53%(226/426)、34.3%(146/426)、12.7%(54/426)。②25羟维生素D水平随年龄增加而降低。25羟维生素D与股骨颈和全髋骨密度呈正相关(r=0.18,P＜0.001),与甲状旁腺激素呈负相关(r=-2.05,P＜0.001)。结论 广州地区老年人维生素D不足及缺乏十分普遍。维生素D与股骨颈、髋部骨密度呈正相关,与甲状旁腺激素呈负相关。

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.

目的 初步研究2型糖尿病并视网膜病变患者的血浆趋化素(chemerin)水平及其与骨密度的关系。方法 选择150名糖尿病患者,按视网膜病变分为视网膜病变组(DR组)和眼底正常对照组(NDR组),采用全自动生化检测仪测定糖化血红蛋、甘油三脂、总胆固醇、低密度脂蛋白、高敏C反应蛋白;使用ELISA法检测血浆chemerin水平。骨密度采用双能X线骨密度仪分别测定腰椎正位(L2、L3、L4)、左侧股骨颈、大粗隆区、Ward's三角区的骨密度。结果 ①与NDR组相比,DR组的糖尿病病程较NDR组显著延长(P<0.05)。②DR组的TC、LDL-C、HbA1c、hs-CRP、chemerin水平较NDR组均显著升高(P<0.05)。③DR组的股骨颈、大粗隆区、Ward's三角区的骨密度较NDR组显著降低(P<0.05)。④血清chemerin水平与病程、BMI、HbA1C呈正相关,与股骨颈、大粗隆区、Ward's三角区的骨密度呈负相关。结论 DR患者的chemerin显著升高,chemerin可能参与DR的发生发展,并可能促使DR患者的骨密度降低。

Objective To explore the relationship between the circulation level of chemerin level and bone mineral density(BMD)in type 2 diabetes retinopathy patients. Methods A total of 150 patients with type 2 diabetes were selected. They were divided into two groups: retinopathy group(DR group), non- retinopathy group(NDR group). HbAlc, triglycerides(TC), total cholesterol(TG), low density lipoprotein cholesterol(LDL-C)and high-sensitivity C-reactive protein(hs-CRP)was measured by automatic biochemical detector. Bone mineral density was measured by the dual-energy X-ray absorptiometry. The BMD of lumbar vertebrae 2-4 and the left side of the femoral neck, the greater trochanter and Ward's triangle were assessed. Results ①Compared with the NDR group, the duration of diabetes in group DR was significantly longer(P<0.05); ②The levels of TC, LDL-C, HbA1c, hs-CRP and chemerin in DR group were significantly higher,③The BMD of the femoral neck, trochanter regionandward's triangle were significant reduction;④The level of chemerin was positively correlated with the duration of diabetes, BMI, HbA1C, and negatively correlated with the bone mineral density of the femoral neck, the greater trochanter, and the s' Ward triangle. Conclusion The level of chemerinin DR patients were significantly increased, and chemerin may play a role in the occurrence and development of DR, may promote the bone density decreased.