Table 1.

The protective effect of α-T against hydrogen peroxide-induced PC12 cell death depends on the time of pre-incubation (rescue rates of α-T, %).

Pre-incubation Time/Sample	3 h	6 h	12 h	18 h
	Rescue Rates %
100 μM α-T	67.7 ± 3.95 *,x	72.6 ± 4.6 *,x	67.1 ± 3.3 *	66.2 ± 4.5 *
100 nM α-T	44.0 ± 6.9 *,x	48.2 ± 5.8 *,x	61.2 ± 3.6 *x	63.9 ± 3.5 *,x
10 nM α-T	10.5 ± 2.4 *	24.2 ± 1.2 *	28.9 ± 5.4 *,#	33.1 ± 2.4 *,#
1 nM α-T	2.90 ± 3.8	7.2 ± 4.1	10.5 ± 0.5 *	15.8 ± 0.4 *
0.1 nM α-T	1.3 ± 3.2	2.3 ± 5.08	1.6 ± 7.1	6.9 ± 7.0

^*the protective effect of α-T is significant, p < 0.05;

^x,#the differences are significant as compared to the effect of α-T in all lower concentrations (for the same time of pre-incubation) according to one-way ANOVA followed by Tukey’s multiple comparison test, ^x p < 0.02, ^# p < 0.05.