Table II.

Inhibitory effect of ethanolic extract of Forsythia suspensa on esophageal cancer cells.

IC50 (mgml)	TE-13	TE-1	Eca-109	Yes-2
FSEEL	78.01	89.26	88.03	72.91
FSEES	4.25	8.92	10.90	7.82
FSEER	0.58	1.25	2.30	1.46

Each cell line was treated with the indicated extract for 48 h, respectively. All experiments were performed three times in triplicate. FSEEL, Forsythia suspensa ethanolic extract of the leaves; FSEES, Forsythia suspensa ethanolic extract of the stem; FSEER, Forsythia suspensa ethanolic extract of the root.