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Malar Res Treat. 2012;2012:257986. doi: 10.1155/2012/257986. Epub 2012 Jul 10.

Subacute therapeutic dosing of artemether-lumefantrine and artesunate-amodiaquine combination preserves plasma cholesterol, renal antioxidant status, and organ weights in rats.

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1
Department of Chemical Sciences, Redeemer's University, PMB 2011, Mowe, Ogun, Nigeria.

Abstract

Recent instances of breakdowns of malaria control programs and the constant emergence of drug-resistant parasites to monotherapies have shored up the use of artemisinin-based combination therapy (ACT) as the malaria therapy of choice. We evaluated a subacute therapeutic dosing of artemether-lumefantrine and artesunate-amodiaquine on plasma cholesterol, renal antioxidants, and organ weights in rats. Sixteen albino rats were grouped into three. Group A (n = 5) served as the control. Groups B (n = 6) and C (n = 5) were administered, twice daily, oral therapeutic doses of artemether-lumefantrine (1.14/6.86 mg/kg/d) and artesunate-amodiaquine (2.86/8.58 mg/kg/d), respectively, for seven days. From our results, ACTs did not significantly (P > 0.05) alter catalase, superoxide dismutase, glutathione S-transferase, myeloperoxidase, and total glutathione levels when compared with the control. Plasma total cholesterol levels also decreased insignificantly (P > 0.05). Organ-system weights were not significantly (P > 0.05) different from control rats. Artesunate-amodiaquine, but not artemether-lumefantrine, significantly increased (P < 0.05) lactate dehydrogenase activity and also afforded a 27.2% decrease in heart weight when compared with control. Also, both ACTs increased (P < 0.05) lipid peroxidation. Overall, artesunate-amodiaquine and artemether-lumefantrine may preserve renal antioxidants and organ weights in vivo. However, caution is required above therapeutic indications or in chronic doses as this may predispose to renal oxidative stress.

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