Pentoxifylline treatment reduced inflammation. (A) Immunohistochemistry for <t>F4/80</t> was performed on mice peritoneal tissue in the different groups at day 3 and day 7. The F4/80 expression was increased in the PA group. Representative images of the sham group, the PA group, and the PA+PTX group are shown (Original magnification, x200, bar = 100 µm). (B) Quantification of F4/80 + cells (%) in high-powered field (HPF) at x400 magnification. Data are expressed as the mean± SE. ∗ P