Cigarette smoking is associated with dose-dependent adverse effects on paraoxonase activity and fibrinogen in young women
نویسندگان
چکیده
CONTEXT Smoking is associated with increased fibrinogen and decreased paraoxonase (PON) activity, markers of inflammation and oxidative stress, in patients with coronary artery disease. OBJECTIVE We tested the hypothesis that the adverse effect of smoking on these biomarkers of inflammation and oxidative stress would be detectable in otherwise healthy young female habitual smokers. MATERIALS AND METHODS Thirty-eight young women participated in the study (n = 20 habitual smokers, n = 18 non-smokers). Fibrinogen, PON-1 activity and HDL oxidant index (HOI) were measured. RESULTS Mean values of fibrinogen, PON-1 activity and log HOI were not different between the groups. Importantly, however, decreased PON-1 activity (rs = -0.51, p = 0.03) and increased fibrinogen (rs = 0.49, p = 0.04) were significantly correlated with increasing number of cigarettes smoked per day in habitual smokers. DISCUSSION AND CONCLUSION Cigarette smoking is associated with a dose-dependent adverse effect on PON-1 activity and fibrinogen in young women, which may have implications for future cardiovascular risk.
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