Fig. 2. Protective effects of liquiritin (LQ) on the primary cultured hippocampal neurons induced by Aβ_25–35 (n = 3, ± s). A: optical density (OD) in MTT test; B: OD in lactate dehydrogenase (LDH) test.

^* p < 0.05, ^** p < 0.01 vs control group; ^#p < 0.05, ^## p < 0.01 vs model group