Fig. 1. Neurobehavioural assessments.
Neurobehavioural changes were assessed in Lewis rats before (•) and after injection of (▪) PBS, rM5, P*17-DT and K4S2-DT using the following tests: a food manipulation, b beam walking, c grooming, d marble burying and e–g light/dark box test (LDB). LDB was performed after injection of PBS (•), rM5 (▪), P*17-DT (▴) and K4S2-DT (♦). In each experiment (n = 6), age-matched rats were used. Statistical analysis performed by two-way ANOVA. Significance to control group, *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001. Error bars represent standard deviation.