Comparative effects of artemether and in combination with diminazene aceturate in the treatment of experimental Trypanosoma brucei brucei infection in Wistar rats


This study assessed the effects of artemether and in combination with diminazene aceturate on parasitaemia, weight, haematology and pathology induced by experimentally Trypanosoma brucei brucei infection in Wistar rats. Fifty adult rats comprising 25 each of males and females were assigned into 5 groups of ten rats (five males and five females). Rats in group I was uninfected while groups II-V were infected with T b brucei. Groups II were untreated; III administered diminazene aceturate once; IV and V administered artemether only and in combination with diminazene aceturate respectively for 5 days. Parasitaemia was determined daily, blood was collected for haematology and weight obtained every four days for a period of 32 days. At 24 days post-treatment, rats were humanely euthanized and organs harvested for pathological examination. Results revealed parasitaemia at day 4 post-infection, significant (p < 0.05) decrease in weight, erythrogram and leucogram in all infected rats. Following treatment, there was significant (p < 0.05) decrease in parasitaemia, increased weight gain and improved haematology. Pathological examination revealed significantly (p < 0.05) decreased gross and histopathological lesions in treated groups compared to group II. In conclusion, artemether and in combination with diminazene aceturate produced antitrypanosomal effects against experimental trypanosomosis.

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The authors are grateful to Mr. Dennis Otie of Department of Veterinary Pharmacology and Toxicology A.B.U. Zaria, for his technical expertise and assistance in conducting this research.


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KOJ, MM and DS conceived and designed the research. KOJ, MOO and CCU carried out the experiment. KOJ and OO analyzed the data. KOJ wrote the manuscript. All authors read and approved the final manuscript.

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Correspondence to Kelvin Olutimilehin Jolayemi.

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Ethical approval was obtained from Ahmadu Bello University Committee on Animal Use and Care (ABUCAUC).

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Jolayemi, K.O., Mamman, M., Sani, D. et al. Comparative effects of artemether and in combination with diminazene aceturate in the treatment of experimental Trypanosoma brucei brucei infection in Wistar rats. J Parasit Dis (2021).

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  • Artemether
  • Haematology
  • Parasitaemia
  • Pathology
  • Trypanosoma brucei brucei