Effect of PRF on the size of epididymal adipocytes in HFD-induced obese mice. The sections of the epididymal fat tissues of ND (A), HFD (B), OR (C), PRF 50 (D), PRF 100 (E), and PRF 200 (F) were stained with H&E (100×). Scale bar = 100 µm. (G) The epididymal adipocyte sizes of each group. ND, normal diet; HFD, high-fat diet; OR, HFD + 15.6 mg of orlistat; PRF 50, PRF 100, and PRF 200, HFD + 50, 100, and 200 mg of PRF, respectively. The results are expressed as the means ± SDs (n = 7). The values with different letters (a–d) are significantly different (p < 0.05) from each other according to one-way ANOVA and Duncan’s multiple-range test.