Fig. 3

Anti-HIV-1 RT of crude extracts and pure compounds from leaves and twigs of M. Pyrrhocarpa. ^aAnti-HIV-1 RT activity express as %inhibition at 200 µg/mL: very active (VA) =  > 70% inhibition, moderately active (MA) = 50% to 69% inhibition, weakly active (WA) = 30% to 50% inhibition and inactive (I) =  < 30% inhibition; For determination of IC₅₀ in the HIV-1 RT assay, the coefficients of determination, R², were 0.98–0.99 in all assays for 50% end point