摘要
目的评价维生素D(VD)治疗2型糖尿病的疗效和安全性。方法计算机检索中国生物医学文献数据库(CBM,1978年1月至2012年9月)、中国期刊全文数据库(CNKI,1979年1月至2012年9月)、Pubmed(1950年1月至2012年9月)、Embase(1970年1月至2012年9月)和Cochrane图书馆(2012年第4期),收集以VD为干预措施治疗2型糖尿病的随机对照试验(RCT),按照Cochrane系统评价方法,由2位研究者独立地对符合纳入标准的试验进行资料提取,并对纳入文献进行质量评估和对提取的有效数据进行荟萃分析。结果有6个RCT,共计328例2型糖尿病患者符合纳入标准。荟萃分析结果显示,VD治疗2型糖尿病组较对照组的糖化血红蛋白(HbAlc)低0.54%,差异有临界统计学意义(P=0.05),不能降低空腹血糖(FPG)、不能改善稳态模式评估法的胰岛素抵抗指数(HOMA-IR),不能提高定量胰岛素敏感指数(QUICKI)和稳态模式评估法的B细胞功能(HOMA-B)(P〉0.05)。有1项试验报道了VD治疗的不良反应为高钙血症。结论VD治疗2型糖尿病可能有一定疗效,但由于尚缺乏高质量的RCT证据支持,VD治疗2型糖尿病的疗效尚不能作出最后结论,还需进行更多高质量的RCT才能得出肯定性结论。
Objective To evaluate the efficacy and safety of vitamin D (VD) for patients with type 2 diabetes mellitus. Methods Randomized controlled trials (RCT) were identified from CBM ( 1978. 1- 2012. 9), CNKI ( 1979. 1-2012. 9 ), Pubmed ( 1950. 1-2012. 9), EMbase ( 1970. 1-2012. 9) and Cochrane library ( issue 4, 2012). Publications of the RCT on the treatment of type 2 diabetes mellitus with VD were included and analyzed according to the criteria of Cochrane handbook. Results Six RCT involving 328 patients were included. Meta-analysis indicated that VD caused a reduction in glycosylated hemoglobin A 1 c (HbA lc) (P = 0. 05 ) but not in fasting plasma glucose (FPG), homeostasis model assessment index of insulin resistance (HOMA-IR) and failed to improve quantitative insulin sensitivity check index (QUICKI) and homeostasis model assessment index of 13 cell function (HOMA-13) (P 〉 0.05). As reported in a trial, the side effect of VD was hypercalcemia. Conclusion VD may have positive effects on patients with type 2 diabetes mellitus. However, the evidence is weak due to the general low methodological quality. Thus we have not made a reliable conclusion about the effects of VD for type 2 diabetes mellitus at the moment. Further larger, randomized, double-blind, placebo-controlled and muhieenter trials are warranted.
出处
《中华医学杂志》
CAS
CSCD
北大核心
2013年第18期1401-1406,共6页
National Medical Journal of China
关键词
糖尿病
2型
维生素D
随机对照试验
系统评价
荟萃分析
Diabetes mellitus, type 2
Vitamin D
Randomized controlled trials
Systematic review
Meta-analysis