Cigarette Smoking and Oxidative Stress in Patients with Coronary Artery Disease
DOI:
https://doi.org/10.3889/oamjms.2016.117Keywords:
smoking, oxidative stress, coronary artery diseaseAbstract
AIM: To determine whether cigarette smoking, as a risk factor for CAD, affects oxidative stress.
MATERIAL AND METHODS: The study included patients with CAD divided according to smoking status and number of cigarettes smoked during a whole day. In all subjects were examined biological markers of oxidative stress (concentration of oxidants and activity of antioxidant enzymes).
RESULTS: The study included 300 patients with CAD, with an average age of 62.97 ± 11.18 years, with a predominance of males. Of the total, 34.0% were active smokers, and 43.0% were non-smokers. The number of the most active smokers smoked cigarettes 1-20/day. In terms of concentration of oxidants (MDA and HP) it has not proved a significant difference between smokers versus non-smokers. Over the activity of antioxidant enzymes (SOD, CAT and GPX) statistically significant difference was found in the activity of GPX and among active smokers with CAD and non-smokers with CAD (p = 0.039).
CONCLUSION:Smoking as a risk factor for CAD is closely associated with increased oxidative stress and the number of cigarettes smoked plays an important role in increasing the level of oxidative damage and reduced antioxidant defence.AIM: To determine whether cigarette smoking, as a risk factor for CAD, affects (anti)oxidant status.
MATERIAL AND METHODS: The study included patients with CAD, divided according to their smoking status and the number of cigarettes smoked during a day. Biological markers of oxidative stress (concentration of oxidants and activity of antioxidant enzymes) were measured in all subjects.
RESULTS: The study included 300 patients with CAD, (average age of 63 ± 11 years), predominantly males. Of the total, 34.0% were active smokers, 23.0% were former smokers, and 43.0% were non-smokers. Most of the active smokers smoked 1-20 cigarettes/day. In terms of concentration of oxidants (MDA and HP) there was not a significant difference between smokers versus non-smokers. As for the activity of antioxidant enzymes (SOD, CAT and GPX), a statistically significant difference was found in the activity of GPX among the active smokers with CAD and the non-smokers with CAD (p = 0.039).
CONCLUSION: Smoking as a risk factor for CAD is closely associated with increased oxidative stress, and the number of cigarettes smoked plays an important role in increasing the level of oxidative damage and reducing antioxidant defence.Downloads
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