Fig. 6

Effect of PFE on the activities of antioxidant enzymes in prostatic tissue. Individual data were obtained using assay kits: (a) CAT, (b) GPx, (c) GR, and (d) SOD. NC (normal control group), corn oil injection (s.c.) + PBS administration (p.o.); BPH (control group), TP (3 mg/kg)/corn oil injection (s.c.) + PBS administration (p.o.); Fin (positive control group), TP (3 mg/kg)/corn oil injection (s.c.) + finasteride administration (10 mg/kg, p.o.); PFE (PFE-treated group), TP (3 mg/kg)/corn oil injection (s.c.) + PFE administration (200 mg/kg, p.o.). Data are presented as mean ± S.E.M. (n = 6). Significant differences at ^# P < 0.05 and ^## P < 0.01 compared with the NC group. Significant differences at ^** P < 0.01 compared with the BPH group. BPH, benign prostatic hyperplasia; CAT, catalase; Fin, finasteride; GPx, glutathione peroxidase; GR, glutathione reductase; PBS, phosphate-buffered saline; PFE, Ponciri fructus extract; p.o., peroral; s.c., subcutaneously; SOD, superoxide dismutase; TP, testosterone propionate