Experimental schedules.
Animals in group 1 (G1) were intraperitoneally injected with 300 μL of PBS (n =4) once every 2 weeks on experimental weeks 2, 4 and 6. Animals in groups 2 (G2, n = 8), 3 (G3, n = 9) and 4 (G4, n = 7) were intraperitoneally injected with DEN (100 mg/kg body weight) dissolved in PBS once every 2 weeks on experimental weeks 2, 4 and 6. The animals in group 3 and 4 were treated with 0.07% and 0.35% geraniol in liquid form, respectively, during 12 weeks. DEN, diethylnitrosamine; PBS, phosphate-buffered saline.