African Journal of Biotechnology

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In vivo activity of stem bark aqueous extract of Khaya senegalensis against Trypanosoma brucei

MA Ibrahim, GC Njoku, AB Sallau


Aqueous extract of Khaya senegalensis A. Juss (Meliaceae) stem bark was used to treat trypanosomiasis in rats in vivo and changes in levels of aspartate transaminase (AST) and alanine transaminase (ALT)
were studied. The treatment involved oral infusion of the crude extract at 60 mg/kg body weight (b.w) simultaneously with Trypanosoma brucei infection, and 60 and 100 mg/kg b.w infusion of the extract 3
days post infection (p.i). In all the rats treated with the extract, a significant decrease (P < 0.05) in parasitemia was recorded on day 6 p.i and there was also significant (P < 0.05) increase in the levels of
AST and ALT when compared with rats that were neither infected nor given the infusion of the extract. It was concluded that orally infused K. senegalensis extract possessed in vivo activity against T. brucei but
could not prevent the disease-induced liver damage.

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