ogies
indicative of cytotoxic effects compared with the
controls. In the cell growth assay, the total numbers of
viable cells recovered after 3 days of incubation of the cells
with extract-containing medium showed no statistically significant
differences compared with those from the medium
controls (data not shown). These results indicate that neither
the senna nor the aloe emodin were cytotoxic to cells or
inhibited their replication at the concentration was used.
This concentration was 90-fold higher than that having an
ID50 effect on HSV-1 (Table 1).