Comparison of effects of simvastatin versus atorvastatin on oxidative stress in patients with coronary heart disease.
CLINICAL CARDIOLOGY(2010)
Abstract
Background: HMG-CoA reductase inhibitors (statins) have antiatherogenic effects beyond their cholesterol-lowing effect. Whether atorvastatin has a stronger antioxidant effect than other statins is uncertain. Hypothesis: To determine the effects of simvastatin and atorvastatin on markers of oxidative stress in patients with coronary heart disease (CHD). Methods: This study was comprised of 164 patients with CHD and a control population of 122 healthy subjects. The patients with CH D were divided into 2 groups and treated with either simvastatin 20 mg/day or atorvastatin 10 mg/day. The markers of oxidative stress were measured before and after 12 weeks of treatment. Results: The effects of atorvastatin on reducing oxidative stress were significantly greater compared with those of simvastatin (P < 0.05). The changes in the markers of oxidative stress did not correlate with the changes in the plasma lipid profile (P > 0.05). Conclusions: This study suggests that atorvastatin reduces oxidative stress more effectively than simvastatin.
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Key words
simvastatin versus atorvastatin,oxidative stress,coronary heart disease
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