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Cardiovasc Diabetol:2型糖尿病中氧化应激、炎症反应、内皮功能的紊乱和影响

2016-05-18 李月 译 MedSci原创

    氧化应激、炎症反应和内皮功能的紊乱与心血管疾病发病互为相关因素,但是它们与2型糖尿病的联系目前尚未明确。研究人员通过检测2型糖尿病相关生化标志物探讨这一联系。    研究选取了中青年人冠状动脉危险因素研究(CARDIA)中的2339名对象,研究对象的平均年龄为40.1±3.6岁,包括44%黑人和58%女性,所有研究对象均未患糖尿病,且接受了长达10年

氧化应激、炎症反应和内皮功能的紊乱与心血管疾病发病互为相关因素,但是它们与2型糖尿病的联系目前尚未明确。研究人员通过检测2型糖尿病相关生化标志物探讨这一联系。

研究选取了中青年人冠状动脉危险因素研究(CARDIA)中的2339名对象,研究对象的平均年龄为40.1±3.6岁,包括44%黑人和58%女性,所有研究对象均未患糖尿病,且接受了长达10年的随访。统计采用Cox回归评估2型糖尿病发生的危险比(校正其他生化标志物、人口结构和生活方式、饮食习惯、BMI、代谢综合征等因素后)。
 
结果显示F2-iPs(F2-iPs是细胞膜脂质中花生四烯酸经自由基诱导产生的过氧化产物,为体内氧化应激和过氧化的标志物)和氧化型LDL与2型糖尿病的发生均呈正相关,但该相关性经过校正BMI后有所减弱。C反应蛋白与2型糖尿病的发生在校正上述因素后呈正相关,四分位数与一分位数(Q4 vs Q1)之间的危险比HR(95%CI)=2.21 (1.26–3.88)。校正所有因素后,2型糖尿病发生的危险比(95%CI)在反映内皮功能紊乱的生化标志物细胞粘附分子-1(ICAM-1)和内皮细胞选择素(E-selectin)中分别为1.64 (0.96–2.81)和 1.68 (1.04–2.71)(Q4 vs Q1)。这两种生化标志物的危险评分联合BMI、临床检测等将2型糖尿病发病的预测概率提高了9%:替代风险评分概率的高四分位和低四分位(75 vs 25th %)的相对危险度RR=1.09(1.06-1.13),P<0.0001。

因此,炎症反应和内皮功能紊乱的生化标志物与2型糖尿病的发生呈正相关,ICAM-1和E-selectin有助于预测2型糖尿病的发生。

原始出处:

Odegaard AO,Jacobs DR Jr,Sanchez OA, Goff DC Jr, Reiner AP,Gross MD.Oxidative Stress, Inflammation, Endothelial Dysfunction and Incidence of Type 2 Diabetes.Cardiovasc Diabetol. 2016;15(51) 

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