apoptotic
cell death of RA FLS and found that gallic acid treatment at
the concentrations of 0.1 and 1 M for 48 h increased the number
of TUNEL-positive cells, compared to vehicle-treated control cells
(Fig. 2A). Apoptosis indices of 0.1 and 1.0 M of gallic acid-treated
cells were 7.2
±
2.1% and 16.7
±
4.9%, respectively (Fig. 2B).