Abstract:Objective To investigate the correlation between homocysteine level and triglyceride, low density lipoprotein, total cholesterol, high density lipoprotein, apolipoprotein A1, apolipoprotein B and lipoprotein(a) levels in patients with coronary heart disease. Methods A total of 400 patients with coronary heart disease and 390 healthy controls in our hospital from January 1st 2016 to December 31st 2018 were selected for the study. Kendall’s tau-b correlation test was used to observe the correlation between homocysteine level and blood lipid profile in these two groups. Blood lipid levels when homocysteine levels < 15 μmol/L and ≥ 15 μmol/L were compared and the results were analyzed. Results Homocysteine level in coronary heart disease group was significantly higher than that in normal control group, while triglyceride, total cholesterol, low density lipoprotein, apolipoprotein A1 and apolipoprotein B levels were lower than those in the control group (P?0.05). The correlation analysis showed that homocysteine level was positively correlated with triglyceride, total cholesterol, low density lipoprotein, apolipoprotein A1 and apolipoprotein B levels in patients with coronary heart disease (r?= 0.089, 0.117, 0.103, 0.114, 0.085, 0.086, respectively) (P?0.05). There was no correlation between homocysteine level and blood lipid profile in normal control group (P?>?0.05). The levels of triglyceride, total cholesterol, apolipoprotein A1, apolipoprotein B, lipoprotein(a) and low density lipoprotein in homocysteine levels ≥ 15 μmol/L group were significantly higher than those in homocysteine levels < 15 μmol/L group (P?0.05). Conclusions The level of homocysteine is an independent risk factor for coronary heart disease and is positively correlated with blood lipid profile in those with coronary disease. Thus, it is suggested that lipid-lowering therapy combined with lowering plasma homocysteine level may be helpful to prevent the occurrence and development of coronary heart disease.