Study on the association between serum APO-E levels and serum lipid levels in young smokers

Abstract

Smoking causes cardiovascular deaths which are about11% of total global death. Cigarette smoking is one of the significant risk factors for cardiovascular disease and atherosclerosis in young age. Apo lipoprotein-E (APO-E) is a glycoprotein which plays an important role in lipid metabolism. However, the relation between serum APO-E levels and serum lipid levels remains controversial. So we aim to find out the association between serum APO-E levels and serum lipid levels in young smokers. The study contains 60 young smokers with CHD aged between 20 to 45 years, and 60 healthy normal individuals were attending in Cardiology OP, Medicine OP and MHC were selected for the study. Serum APO-E levels were measured by Enzyme-linked Immune Sorbent Assay (ELISA), and the lipid profile was measured by the enzymatic method. The mean serum APO-E levels were significantly (p-value <0.0001) higher in smokers with CHD when compared to the controls. A positive correlation was found between the serum APO-E level and BMI (r-value=0.595), FBG (r-value=0.425), TC (r-value=0.650), TGL (r-value=0.449), LDL (r-value=0.456 ), VLDL (r-value=0.452 ), No of smoking/day (r-value=0.862 ), duration of smoking (r-value=0.726 ) and a negative correlation was found with HDL-C levels. The current study gives a significant correlation between smoking and lipid profile in young smokers. Thus the present study concludes that cigarette smoking produced a significant effect on serum APO-E levels and lipid profile in young smokers which may lead to cardiovascular disease in young smokers.