Table 1. Effects of liquiritin (LQ) on spatial learning and memory of Alzheimer's disease rats in Morris test.

Groups	Escape latencies (s)	Time spent in quadrant 3 (s)	Number of crossing platform
Control	34.31 ± 14.25	37.95 ± 18.98	6.41 ± 3.32
Model	56.67 ± 38.75**	23.87 ± 24.23**	2.74 ± 1.08**
LQ (20 mg/kg·d)	43.42 ± 27.57	24.87 ± 21.04	3.94 ± 1.58
LQ (40 mg/kg·d)	39.15 ± 23.45#	38.86 ± 25.86#	3.82 ± 2.27##
LQ (80 mg/kg·d)	38.71 ± 22.15#	37.92 ± 20.84#	4.25 ± 2.69##

^*p < 0.05,

^**p < 0.01 vs control group;

^#p < 0.05,

^##p < 0.01 vs model group