Diabetologia:循环利钠肽可反映胰岛素敏感性

2014-04-17 佚名 丁香园

利钠肽是一种由心肌细胞产生的激素,可以影响心室重构、水电解质平稳和血管紧张性。流行病学研究显示2型糖尿病高危个体(肥胖和胰岛素抵抗)中,心房利钠肽和B型利钠肽水平较低。然而,利钠肽在这些疾病发展中的作用仍不清楚。 为此,来自美国麻省总医院糖尿病研究中心的Florez教授及其团队使用糖尿病预防计划(DPP)的数据进行了一项研究,探讨肥胖和胰岛素敏感性指标与N末端B型利钠肽原(NT-proBNP)之

利钠肽是一种由心肌细胞产生的激素,可以影响心室重构、水电解质平稳和血管紧张性。流行病学研究显示2型糖尿病高危个体(肥胖和胰岛素抵抗)中,心房利钠肽和B型利钠肽水平较低。然而,利钠肽在这些疾病发展中的作用仍不清楚。

为此,来自美国麻省总医院糖尿病研究中心的Florez教授及其团队使用糖尿病预防计划(DPP)的数据进行了一项研究,探讨肥胖和胰岛素敏感性指标与N末端B型利钠肽原(NT-proBNP)之间的关系。该研究结果发表在2014年05月的Diabetologia杂志上。

糖尿病预防计划(DPP)是一项完整的临床试验,受试者被随机分到安慰剂组(692例)、强化生活方式干预组(832例)或二甲双胍组(887例)。分别在基线和随访2年后测量受试者的体重指数(BMI)、腰围(WC)、胰岛素敏感性指数(ISI)和NT-proBNP。

研究结果表明,各治疗组间基线log NT-proBNP没有明显差异,并与基线log ISI和腰围相关,但与BMI无关。治疗2年后,强化生活方式干预组和二甲双胍组患者BMI明显下降,所有三个治疗组患者腰围均下降,并且,强化生活方式干预组和二甲双胍组患者log ISI较基线有所增加。强化生活方式干预组和二甲双胍组与安慰剂组相比,log NT-proBNP的变化没有差异。在回归模型中,校正BMI和腰围变化后,所有三个治疗组患者的log NT-proBNP改变与log ISI改变呈正相关,但在校正log ISI变化后,log NT-proBNP改变与BMI或腰围改变无关。

该研究提示,循环NT-proBNP与2型糖尿病预防性干预前后胰岛素敏感性测量值相关。校正肥胖测量值后,这种相关性持续存在,而且,无论受试者是接受安慰剂、强化生活方式干预或二甲双胍治疗,都存在这种相关性。

原始出处

Walford GA1, Ma Y, Christophi CA, Goldberg RB, Jarolim P, Horton E, Mather KJ, Barrett-Connor E, Davis J, Florez JC, Wang TJ; Diabetes Prevention Program Research Group.Circulating natriuretic peptide concentrations reflect changes in insulin sensitivity over time in the Diabetes Prevention Program.Diabetologia. 2014 May

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    2014-10-08 baoya
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    2014-10-15 智智灵药
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