ABSTRACT
Background: Several studies have reported elevated blood cholesterol levels among persons who regularly smoke cigarettes and lowered blood cholesterol levels among persons quitting smoking. Other studies have also shown that smoking lowers high density lipoprotein level, resulting in an increased risk of coronary heart disease. Smoking also leads to increase in LDL cholesterol and triglyceride levels. The objective was to study serum lipid profile in smokers and non-smokers.Methods: A cross sectional comparative study was carried in 100 subjects. The subjects were divided into two groups. First group consisted of 25 nonsmokers and second group of 75 smokers. The group of 75 smokers was again divided into three equal sub groups of 25 each depending upon the duration and intensity of smoking. Concentration of serum total cholesterol and HDL was determined by Zak’s method. Concentration of serum LDL and VLDL cholesterol was determined by Friedwald’s formula. Concentration of serum triglyceride level was determined by enzymatic end point peroxidase coupled method.Results: All the values of lipid profile i.e., total cholesterol, triglycerides, LDL, VLDL were found to be significantly higher among the smokers compared to the non-smokers. HDL value was significantly lower among smokers. As the degree of smoking increased from mild to heavy smokers, the values of total cholesterol, triglycerides, LDL and VLDL increased. The degree of smoking was inversely proportional to HDL values i.e., the HDL value decreased as the smoking degree increased.Conclusions: Thus, it can be said based on the present study that smoking affects and deranges the lipid profile of the person.
ABSTRACT
Background: Plasma gets exposed to the gases present in the smoke of the cigarette which leads to peroxidation. The ascorbic acid present in the body gets oxidized there is danger of derangement of lipid profile. The measure of malondialdehyde which is formed in lipid peroxidation reaction is indicative of oxidative stress. Oxidative stress seen among the smokers has been attributed to high MDA levels. Objective was to study the effect of smoking on vitamin C and MDA.Methods: Present study was cross sectional study. Two groups of subjects were compared. Out of 100 study subjects, 25 were non smokers and were kept in one group. Remaining 75 were smokers. These two groups were compared to find out how the smoking habit affects the MDA as well as vitamin C levels among them.Results: The levels of MDA were more in smokers compared to those who did not smoke and this difference was significant. The levels of vitamin C were less in smokers compared to those who did not smoke and this difference was significant (p<0.05). It was found that the MDA levels were significantly more among all degrees of smokers. It was less in smokers with mild degree compared to smokers with heavy or moderate degree. Level of vitamin C was more in non smokers compared to smokers. Mild degree of smokers had better levels of vitamin C compared to moderate degree of smokers.Conclusions: Smoking affects the vitamin C levels and MDA levels in the human body.