Department of Pediatrics, Cincinnati Children's Hospital & University of Cincinnati, Cincinnati, Ohio 45229, USA.
J Hypertens. 2010 Aug;28(8):1692-8. doi: 10.1097/HJH.0b013e32833a6132.
Adults with obesity or obesity-related type 2 diabetes (T2DM) are at higher risk for cardiovascular disease possibly due to increased arterial stiffness. We sought to determine if arterial stiffness is increased in youth with obesity or T2DM as compared with lean controls.
Youth age 10-24 years (N = 670, 62% non-Caucasian, 35% male) were examined. They were stratified by the 85th% of BMI as lean (L=241), obese (O=234) or obese with T2DM (T2DM=195). Questionnaire, anthropometric, BP, laboratory (fasting glucose, insulin, HbA1c, lipids, CRP), physical activity, and DXA were collected. Brachial artery distensibility (BrachD), pulse wave velocity (PWV) and augmentation index (AIx) were measured. Group differences were evaluated by ANOVA. General linear multivariate models were constructed to elucidate independent determinates of arterial stiffness.
CV risk profile deteriorated from L to O to T2DM group. There was a progressive increase in AIx and PWV-trunk with progressive decline in BrachD from L to O to T2DM individuals (all P < 0.05). Group (status as L, O or T2DM) was an independent predictor of arterial stiffness even after adjusting for CV risk factors.
Arterial stiffness is increased in young individuals with obesity and obesity-related T2DM even after correction for risk factors.
肥胖或肥胖相关 2 型糖尿病(T2DM)的成年人发生心血管疾病的风险更高,这可能是由于动脉僵硬增加所致。我们试图确定与瘦对照组相比,肥胖或 T2DM 青少年的动脉僵硬是否增加。
检查了年龄在 10-24 岁的年轻人(N=670,62%非白种人,35%男性)。他们按 BMI 的 85%分为瘦(L=241)、肥胖(O=234)或肥胖合并 T2DM(T2DM=195)。收集了问卷调查、人体测量、血压、实验室(空腹血糖、胰岛素、HbA1c、血脂、CRP)、身体活动和 DXA。测量了肱动脉可扩张性(BrachD)、脉搏波速度(PWV)和增强指数(AIx)。通过方差分析评估组间差异。构建了广义线性多变量模型,以阐明动脉僵硬的独立决定因素。
CV 风险状况从 L 组到 O 组再到 T2DM 组逐渐恶化。从 L 组到 O 组再到 T2DM 个体,AIx 和 PWV-trunk 逐渐增加,而 BrachD 逐渐降低(均 P<0.05)。即使在调整了心血管危险因素后,组(状态为 L、O 或 T2DM)也是动脉僵硬的独立预测因子。
即使在纠正了危险因素后,肥胖和肥胖相关 T2DM 的年轻人的动脉僵硬也会增加。