Immunostimulant Activity of A. paniculata. A. paniculata ethanol extract stimulated limphocyte cell proliferation at all concentration of extract treatment from 1 to 16 μg, as shown in Figure 2, where the value of stimulation index was greater than one compared to the control non treated cell. Similarly, in Figure 3, it appears that the percentage of increasing proliferation are at the range of 27 to 38%, and the highest percentage to increase proliferation was resulted from the treatment of 1 μg/mL A. paniculata ethanol extract.