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血清25-羟维生素D3、脂蛋白相关磷脂酶A2与早期糖尿病肾病的相关性研究

  

  1. 上海市第一康复医院 内分泌代谢与肾脏康复科,  上海 200090
  • 出版日期:2019-10-20 发布日期:2019-12-09
  • 通讯作者: 董萍, Email: dongping809@163.com

Correlation analysis on serum level of 25hydroxy vitamin D3 and lipoproteinassociated phospholipase A2 with early diabetic nephropathy

  1. Department of Endocrinology,  First Rehabilitation Hospital of Shanghai,  Shanghai  200090,  China
  • Online:2019-10-20 Published:2019-12-09
  • Contact: Corresponding author: Dong Ping, Email: dongping809@163.com

摘要: 目的  探讨早期糖尿病肾病(diabetic nephropathy, DN)患者血清25羟维生素D3[25(OH)D3]、脂蛋白相关磷脂酶A2(LPPLA2)水平,分析其与早期DN的相关性。方法  选取入住我院内分泌科的2型糖尿病(T2DM)患者160例,根据尿蛋白排泄率(UAER)分为微量白蛋白尿组(n=80)与正常白蛋白尿组(n=80),同时选取我院同期健康体检者80例作为对照组,采用酶联免疫吸附试验(ELISA法)检测血清LPPLA2水平,化学发光法检测血清25(OH)D3水平,全自动生化分析仪检测生化指标,对比3组血清LPPLA2、25(OH)D3水平变化,分析其与早期DN的相关性。结果  ①正常白蛋白尿组及微量白蛋白尿组血清LPPLA2水平明显高于对照组,血清25(OH)D3明显低于对照组(均P<0.05), 而正常白蛋白尿组血清LPPLA2低于微量白蛋白尿组,血清25(OH)D3高于微量白蛋白尿组(均P<0.05)。②微量白蛋白尿组UAER与低密度脂蛋白胆固醇(LDLC)、收缩压(SBP)、舒张压(DBP)、病程、血糖(FPG)、糖化血红蛋白(HbA1c)、尿酸(UA)、同型半胱氨酸(Hcy)、胱抑素C(CysC)、LPPLA2均呈正相关(均P<0.05或P<0.01),与25(OH)D3呈负相关(P<0.01)。③SBP、DBP、病程、FPG、HbA1c、CysC、LPPLA2为早期DN的独立危险因素,25(OH)D3为其保护因素。结论  血清LPPLA2、25(OH)D3与早期DN的发生、发展密切相关, LPPLA2是其危险因素,25(OH)D3是其保护因素。

关键词: 糖尿病肾病, 骨化二醇, 磷脂酶A2, 尿蛋白排泄率

Abstract: Objective  To investigate the level of 25hydroxy vitamin D3 (25[OH]D3)  and lipoprotein associated phospholipase A2 (LpPLA2) in diabetic nephropathy(DN) patients and explore the correlation between serum level of 25(OH)D3 and LpPLA2 and the early DN. Methods  A total of 160 patients with type 2 diabetes mellitus(T2DM) were randomly divided into microalbuminuria group (n=80) and normal albuminuria group (n=80) according to the urinary albumin excretion rate (UAER). Another 80 health volunteers served as the control group. Serum LpPLA2 level was measured by enzyme linked immunoadsorption determination (ELISA). Serum 25(OH)D3 level was measured by chemiluminescence method,  and the biochemical indicators were measured by automatic biochemical analyzer. The differences of LpPLA2 and 25(OH)D3 among three groups were compared,  and the correlation between serum level of 25(OH)D3 and LpPLA2 and the early  DN  was analyzed. Results  ①Seurm LpPLA2 was significantly higher in normal albuminuria and microalbuminuria group than that in control group,  but serum 25(OH)D3 was significantly lower in normal albuminuria and microalbuminuria group than that in control group (P<0.05). Seurm LpPLA2  was significantly higher in microalbuminuria group than that in normal albuminuria group,  but seurm 25(OH)D3  was significantly lower in microalbuminuria group than that in normal albuminuria group (P<0.05). ②The level of UAER was positively correlated with the low density lipoprotein cholesterin(LDLC),  systolic blood pressure (SBP),  diastolic blood pressure (DBP),  disease  course, fasting plasma glucose (FPG),  glycosylated hemoglobin (HbA1c),  uric acid(UA),  homocysteine(Hcy),  Cys C and LpPLA2(P<0.05 or P<0.01),  but was negatively correlated with 25(OH)D3 (P<0.01). ③SBP,  DBP,  course of sisease, FPG,  HbA1c,  CysC and LPPLA2 were independent risk factors for early DN,  but 25(OH)D3 was protective factor for it. Conclusion  The levels of 25( OH) D3 and LPPLA2 are closely related to the occurrence and development of  early DN.  25(OH)D3 is the protective factor, while LPPLA2 is a risk factor for it.

Key words: diabetic nephropathy, calcifediol, phospholipases A2, urinary albumin excretion rate