Figure 3.

Effect of Rosmarinus officinalis flower extract on lifespan of C. elegans SS104 glp-4 (bn2). The means of lifespan were: 14 days (control, 100 and 250 µg/mL groups), 16 days (25 µg/mL treated group) and 17 days (50 µg/mL treated group). Results of lifespan experiments were analysed using the Kaplan–Meier survival model, and for significance by means of a long rank pairwise comparison test between the control and treatment groups. Differences in survival curves between the treatment and control groups were found for the concentrations of 25 (p ≤ 0.05) and 50 (p ≤ 0.01) µg/mL.