Abstract:Aim To investigate the alteration of plasma levels of omentin-1, visfatin in old patients with coronary heart disease (CHD) and to explore its clinical significance. Methods Plasma omentin-1, visfatin levels were measured in 90 subjects [29 stable angina pectoris (SAP) cases, 30 unstable angina pectoris (UAP) cases and 31 age-and sex-matched healthy controls, age≥60years] using enzyme-linked immunosorbent assay (ELISA) methods. According to the NYHA classification, 59 CHD were divided into three groups: functional Ⅰ class for 11 cases, functional Ⅱ/Ⅲ class for 36 cases, functional Ⅳ class for 12 cases. Results (1)The plasma level of omentin-1 in coronary heart disease patients was significantly lower than that of the control group(717.63±229.11 ng/L vs 1115.49±361.41 ng/L, P=0.000), and SAP group’s, UAP group’s were all significantly lower than control group (respectively 780.32±273.19 ng/L vs 1115.49±361.41 ng/L, 652.81±152.94 ng/L vs 1115.49±361.41 ng/L, all P<0.05). (2)The plasma level of visfatin in CHD patients was significantly higher than the control group (19.22±6.73 μg/L vs 13.31±1.69 μg/L, P=0.002), the level of visfatin of SAP group and UAP group were all significantly higher than that of the control group (17.92±4.19 μg/L vs 13.31±1.69 μg/L, 20.43±8.31 μg/L vs 13.31±1.69 μg/L, respective, all P<0.05). (3)With the increase of NYHA class, the plasma omentin-1 level decreased, while visfatin levels increased gradually, and among the three groups, there were significant differences (omentin-1 respectively 1033.87±277.84 ng/L, 676.58±137.25 ng/L, 540.35±59.49 ng/L, visfatin respectively 13.00±1.19 μg/L, 19.08±2.97 μg/L, 5.23±11.30 μg/L, all P<0.05). (4)The plasma omentin-1 level was negative correlated with systolic blood pressure (SBP) (r=-0.264, P<0.05), positively correlated with high density lipoprotein cholesterol (HDLC) level (r=0.271, P<0.05).