Shai Iris, Schulze Matthias B, Manson Joann E, Rexrode Kathryn M, Stampfer Meir J, Mantzoros Christos, Hu Frank B
Department of Epidemiology, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA.
Diabetes Care. 2005 Jun;28(6):1376-82. doi: 10.2337/diacare.28.6.1376.
Tumor necrosis factor-alpha (TNF-alpha), a cytokine secreted by adipose tissue and other cells, might play a role in insulin resistance.
Of 32,826 women from the Nurses' Health Study who provided blood at baseline, we followed 929 women with type 2 diabetes. During 10 years of follow-up, we documented 124 incident cases of coronary heart disease (CHD).
After adjustment for age, smoking, BMI, and other cardiovascular risk factors, the relative risks (RRs) comparing extreme quartiles of soluble TNF-alpha receptor II (sTNF-RII) were 2.48 (95% CI 1.08-5.69; P = 0.034) for myocardial infarction (MI) and 2.02 (1.17-3.48; P = 0.003) for total CHD. The probability of developing CHD over 10 years was higher among diabetic subjects with substantially higher levels of both sTNF-RII (>75th percentile) and HbA(1c) (>7%), compared with diabetic subjects with lower levels (25% vs. 7%, P < 0.0001). Diabetic subjects with only higher sTNF-RII or HbA(1c) had similar (16-17%) risk. In a multivariate model, diabetic subjects with higher levels of both sTNF-RII and HbA(1c) had an RR of 3.66 (1.85-7.22) for MI and 3.03 (1.82-5.05) for total CHD, compared with those with lower levels of both biomarkers.
Increased levels of sTNF-RII were strongly associated with risk of CHD among diabetic women, independent of hyperglycemia.
肿瘤坏死因子-α(TNF-α)是一种由脂肪组织和其他细胞分泌的细胞因子,可能在胰岛素抵抗中发挥作用。
在护士健康研究中,有32826名女性在基线时提供了血液样本,我们对其中929名2型糖尿病女性进行了随访。在10年的随访期间,我们记录了124例冠心病(CHD)新发病例。
在调整年龄、吸烟、体重指数(BMI)和其他心血管危险因素后,比较可溶性TNF-α受体II(sTNF-RII)极端四分位数时,心肌梗死(MI)的相对风险(RRs)为2.48(95%可信区间[CI]1.08 - 5.69;P = 0.034),总CHD的RRs为2.02(1.17 - 3.48;P = 0.003)。与sTNF-RII水平较低(>第75百分位数)和糖化血红蛋白(HbA1c)水平较低(>7%)的糖尿病患者相比,sTNF-RII水平较高(>第75百分位数)且HbA1c水平较高(>7%)的糖尿病患者在10年内发生CHD的概率更高(25%对7%,P < 0.0001)。仅sTNF-RII或HbA1c水平较高的糖尿病患者有相似的风险(16 - 17%)。在多变量模型中,与两种生物标志物水平较低的糖尿病患者相比,sTNF-RII和HbA1c水平较高的糖尿病患者发生MI的RR为3.66(1.85 - 7.22),总CHD的RR为3.03(1.82 - 5.05)。
在糖尿病女性中,sTNF-RII水平升高与CHD风险密切相关,独立于高血糖。