Evaluation of the Antimalarial Activity of Crude Extract of Labill. Leaf Against in Mice

Introduction: Traditional medicinal plants are used as a common source of developing new and effective antimalarial drugs. leaf has been used in the traditional management of malaria in different countries, including Ethiopia. However, there is no study done on the antimalarial activity of the plant. Thus, this study aimed to evaluate the antimalarial activity of crude extract of Labill. leaf in -infected mice.

Method: The fresh leaves of were collected, washed, air-dried, and made as coarse powder. Either sex of mice aged 6 to 8 weeks was used in the experiment. The antimalarial activity of the crude extract was tested in four-day suppressive, curative (Rane's), and prophylactic (repository) tests. The parameters like level of parasitemia, packed cell volume, body weight, rectal temperature, and mean survival time were recorded. The analysis of the data was done with SPSS version 20 with a 95% confidence interval in one-way ANOVA followed by Tukey's post hoc test.

Results: In all three antimalarial test models, the extract of leaf of at all three doses suppressed the level of parasitemia significantly ( < 0.001), increased survival time ( < 0.05 to < 0.001), and prevented a decrease in body weight as compared to the negative control. The middle and large doses of the extract also decreased loss of body temperature ( < 0.05 to < 0.001) compared to the negative control. Reduction of packed cell volume was prevented within the three test doses of the extract in both curative and prophylactic tests and middle and large doses in the 4-day suppressive test compared to the negative control.

Conclusion: The crude extract of the plant showed promising antimalarial activity. This supports the traditional use and the test result of the plant.