Table 2.

Apoptosis of TE-13 cells induced by extracellular ATP or ADO (n=3, mean±SD)

Concentration (mmol/L)	Apoptotic rate (%)
ATP 0	1.350.07
0.03	3.890.29
0.1	7.730.57a
0.3	12.400.61b
1	16.601.10a
ADO 0	2.430.85
0.03	6.750.49a
0.1	9.731.70d
0.3	13.100.53d
1	16.901.20d

^aP<0.05,

^bP<0.01, and

^dP<0.001 vs control (0 mmol/L).