Resumo

MUNOZ, Marielena et al. Posible efecto antioxidante de la atorvastatina en individuos hiperlipidemicos. AVFT [online]. 2009, vol.28, n.2, pp.71-76. ISSN 0798-0264.

The Atorvastatin is used in the treatment of hyperlipidaemia owing its action of inhibition 3-hydroxy-3-methylglutaryl coenzyme A reductase. Additionally, they have showed to reduce oxidative stress and the susceptibility of LDL-C to oxidation. Considering these pleiotropic effects of Atorvastatin this research was proposed with the Objective: To evaluate the possible antioxidant effect of the Atorvastatin on the serum levels of α-Tocopherol and Retinol in hyperlipidemia individuals. Methodology: prior informed consent, 30 individuals with hyperlipidemia, was analyzed for lipid profile (enzymatic-colorimetric) and vitamins A and E (HPLC) before and after short-term treatment (7 days) with different doses of Atorvastatin. Results: Treatment with 10 mg significantly decreased triglycerides, total cholesterol and LDL-C, (p = 0.0308), (p = 0.031) and (p = 0.0193), an increase of 2.26% in HDL-C. The dose of 20 mg intensified significantly the mentioned effect, triglycerides, total cholesterol and LDL-C (p = 0.0211), (p = 0.0001) and (p = 0.0001), respectively. The values of Vitamins A and E showed a significantly increase with dose of 20 mg. Conclusion: Treatment with Atorvastatin at doses of either 10 or 20 mg decreased triglycerides, total cholesterol and LDL-C in a dose-dependent manner. The effect and the increase of Vitamin A and E levels could reflect not only a lipid lowering effect, but also a pleiotrópico, in this case antioxidant effect.

Palavras-chave : Hyperlipidemia; Atorvastatin; Antioxidants.