<![CDATA[Antimalarial drug resistance is one of the greatest challenges towards eradicating malaria. Exploring new combination therapies can overcome resistance challenges. The present study examined the antiplasmodial effect of artemether/lumefantrine/doxycycline (A/L/D) on a mouse model infected with Plasmodium berghei. Adult Swiss albino mice (22-30g) intraperitoneally infected with blood containing 1x107 Plasmodium berghei were randomly grouped and orally treated daily with D (2.2 mg/kg), A/L (1.71/13.7 mg/kg) and A/L/D. The negative control was treated daily with normal saline (0.2ml) whereas the positive control was treated daily with chloroquine (CQ) (10mg/kg). After treatment, blood samples were assessed for percentage parasitemia and biochemical parameters. Mice were observed for mean survival time (MST). D, A/L and A/L/D produced significant decreases in percentage parasitemia levels at p<0.05; p<0.01 and p<0.001, respectively when compared to negative control. In the curative test, D, A/L and A/L/D produced 60.4%, 70.3%, and 90.0% parasitemia inhibitions, respectively whereas CQ produced 76.0% parasitemia inhibition. D, A/L, A/L/D and CQ produced 63.2 %, 80.1%, 92.3% and 83.6% parasitemia inhibitions, respectively in the suppressive test. D, A/L, and A/L/D prevented Plasmodium berghei-induced alterations in biochemical parameters by increasing packed cell volume, red blood cells, hemoglobin, and high-density lipoprotein and decreasing white blood cells, total cholesterol, low-density lipoprotein cholesterol, and triglyceride levels significantly at p<0.05 and p<0.01 and p<0.001, respectively when compared to the negative control. A/L/D produced significant antiplasmodial activity therefore, it may be used clinically for the treatment of malaria.]]>
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