Figure 2: Effects of propolis extract on depressive-like behaviors during the TST. Vehicle (1 mL/kg saline), propolis extract (50, 100, or 200 mg/kg), or fluoxetine (10 mg/kg) was orally administered 24, 12, and 1 h prior to TST procedure. Immobility time was recorded during a 6 min test session. The columns and error bars represent means ± SEM ( per group). Data were analyzed using one-way ANOVA followed by Tukey’s post hoc test. P50: propolis extract (50 mg/kg); P100: propolis extract (100 mg/kg); P200: propolis extract (200 mg/kg). , versus vehicle.