Figure 3. Astragalus root and Elderberry extracts only slightly affect the viability of DCs.

DCs were incubated with increasing concentrations of the astragalus extract (A) and elderberry extract (B) and left unstimulated or stimulated with E.coli Nissle (10 µg/mL) or L.acidophilus NCFM (10 µg/mL). After 20 hr the cells were harvested and stained for viability with 7AAD for 15 min., washed and analysed by flow cytometry. (*: p<0.05; **: p<0.01; ***: p<0.001).