Fig 2. Effect of Psi and PsiC on epimastigotes cultured with different hemin concentrations.
T. cruzi epimastigotes were grown at 28°C for 4 days with Psi (a) and PsiC (b) (2.5–15 μM) in culture medium containing different hemin concentrations (0, 5, 10 and 20 mg/L). (c) The IC50 (50% inhibitory concentration) values for each compound with different hemin concentrations were estimated by lineal regression analysis from the inhibition percentage values and the decimal logarithm (log) of drug concentration.