Table 1.

Protective effects of the samples and positive control on Aβ_25-35-induced PC12 cell damages.

Sample	Concentration (μg/ml)	Cell viability (%)
Control	0	100.0 ± 3.3
Aβ25-35	0.01 μM	48.6 ± 5.1#
Methanol extract	0.5	70.4 ± 6.8
	2.5	114.5 ± 5.5*
	5.0	163.9 ± 10.8**
Water extract	0.5	92.4 ± 8.8
	2.5	106.9 ± 5.7*
	5.0	122.3 ± 3.0**
95% Ethanol extract	0.5	40.9 ± 5.7
	2.5	62.5 ± 6.2
	5.0	71.2 ± 3.5
Ellagic acid	0.5	91.2 ± 7.8
	2.5	98.4 ± 6.1*
	5.0	105.1 ± 8.8*
AC-DEVD-CHO	0.5	45.5 ± 7.9
	2.5	64.0 ± 5.2
	5.0	94.6 ± 8.6
Curcumin	0.5	91.6 ± 3.2
	2.5	93.5 ± 6.1
	5.0	102.0 ± 5.4*

These data are showed as mean ± SD for 3 replicates.

^#P< 0.01 versus the control group without the addition of the sample and Aβ_25-35 solutions,

^*P< 0.05;

^**P< 0.01 versus the μM Aβ_25-35-treated group without the addition of the sample solution.