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Diabetologia:强化血糖控制对糖尿病视网膜病变有双向影响

2014-03-14 desperado-c 丁香园

临床试验表明高血糖对糖尿病患者微血管并发症发生和发展有不利影响,因此,当前血糖控制中仍有糖尿病微血管并发症的基础治疗。同时,良好的血糖控制已被证明可降低新诊断2型糖尿病患者糖尿病视网膜病变的进展。然而,在病程长、而血糖控制欠佳的2型糖尿病患者中,这方面的研究数据较少。 为此,来自美国Jr VA医院的Azad教授及其团队进行了一项研究,探讨血糖控制欠佳的糖尿病患者中,强化血糖控制(INT)

临床试验表明高血糖对糖尿病患者微血管并发症发生和发展有不利影响,因此,当前血糖控制中仍有糖尿病微血管并发症的基础治疗。同时,良好的血糖控制已被证明可降低新诊断2型糖尿病患者糖尿病视网膜病变的进展。然而,在病程长、而血糖控制欠佳的2型糖尿病患者中,这方面的研究数据较少。【原文下载】

为此,来自美国Jr VA医院的Azad教授及其团队进行了一项研究,探讨血糖控制欠佳的糖尿病患者中,强化血糖控制(INT)和较高的血浆C肽水平是否与良好的视力结局有关。该研究结果在线发表在2014年03月06日的Diabetologia杂志上。

研究者在退伍军人糖尿病研究(VADT)的1791例受试者中选取了其中的858例,通过7个象限立体眼底照相对患者进行网膜病变的发生率和进展分级评估,评估分为在试验初期和试验5年后开展。

该研究结果表明,在校正所有协变量后,基线HbA1c每增加1%,糖尿病视网膜病变进展风险增加30%。在整个队列中,INT分组和年龄与糖尿病视网膜病变之间均无独立相关。然而,INT与年龄之间有双相作用。在年龄≤55岁的受试者中,INT可降低糖尿病视网膜病变的发生率,但在年龄≥70岁的受试者中,INT可增加糖尿病视网膜病变的发生率。

基线C肽水平每增加1pmol/ml, 糖尿病视网膜病变的发生率下降67.2%。同时基线C肽水平也是糖尿病视网膜病变进展的一个独立负风险因素,基线C肽水平每增加1pmol/ml,糖尿病视网膜病变进展的风险下降47%。

该研究提示,基线血糖控制差与糖尿病视网膜病变进展的风险增加相关。在年轻患者中,INT与糖尿病视网膜病变发生率下降相关,但在老年患者,INT与糖尿病视网膜病变风险增加有关。基线较高的C肽水平与糖尿病视网膜病变发生率和进展风险下降相关。

原始出处:

Azad N1, Agrawal L, Emanuele NV, Klein R, Bahn GD, Reaven P; and The VADT Study Group.Association of blood glucose control and pancreatic reserve with diabetic retinopathy in the Veterans Affairs Diabetes Trial (VADT).Diabetologia. 2014 Mar 6. 【原文下载】


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    2014-06-13 智智灵药
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    2014-03-16 zutt
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