Fig. 4

NO levels in the supernatant of splenocytes (a) and hepatocytes (b) of L. donovani-infected mice upon treatment with Ole or HePC. NO levels were determined at 3 days or 6 weeks after treatment termination. ^# and ^* indicate significant differences compared to the infected and positive (HePC-treated) control groups, respectively. ^◊ and ^{^} indicate significant differences compared to explanted cells from uninfected and untreated mice that received LPS and LPS plus IFN-γ