• Jun-Nan Tang, De-Liang Shen, Cong-Lin Liu, Xiao-Fang Wang, Li Zhang, Xue-Xi Xuan, Ling-Ling Cui, and Jin-Ying Zhang.
• Department of Cardiology (J-NT, D-LS, C-LL, X-FW, LZ, X-XX, J-YZ), the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Institute of Clinical Medicine (J-NT), the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; and College of Public Health (L-LC), Zhengzhou University, Zhengzhou, China.
• Am. J. Med. Sci. 2015 Feb 1; 349 (2): 130-6.

BackgroundC1q/TNF-related protein 1 (CTRP-1), a novel adipocyte factor, may participate in the mechanisms of metabolism and inflammation. Interleukin 6 (IL-6) is a proinflammatory cytokine that is correlated with the severity of coronary heart disease (CHD). In this study, we focused on the levels of CTRP-1 and IL-6 in patients with CHD.MethodsCirculating CTRP-1 and IL-6 levels were measured using enzyme-linked immunosorbent assay in 81 patients with acute coronary syndrome (n=41) or stable angina pectoris (n=40). CTRP-1 and IL-6 levels were also examined in 30 healthy individuals (control group). We examined the correlations between the levels of CTRP-1 and IL-6 and cardiac risk factors in CHD. Logistic regression analysis was performed to screen for factors that predict CHD.ResultsBoth CTRP-1 and IL-6 concentrations were increased in the acute coronary syndrome or stable angina pectoris group compared with the control group (P<0.01). Both plasma levels of CTRP-1 and IL-6 in the single-, double- and triple-vessel lesion group were higher compared with the control group (P<0.01). CTRP-1 levels were positively correlated with IL-6 (r=0.667, P<0.01) and high-sensitivity C-reactive protein levels (r=0.520, P<0.01) and negatively correlated with HDL-C (r=-0.432, P<0.01). The logistic regression analysis showed that increases in CTRP-1 and IL-6 levels may be powerful predictors of CHD.ConclusionsThe variation of plasma CTRP-1 and IL-6 concentrations may play an important role in reflecting the degree of inflammation in CHD and the severity of coronary arterial atherosclerosis. This potential suggests that evaluating CTRP-1 and IL-6 in combination may aid in predicting the occurrence of CHD.

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