FIG. 3.

Myeloperoxidase (MPO) immunohistochemical quantification and photomicrographs. (A) Mean area of MPO-positive staining from 4 h to 7 days post-PBBI. (B) Representative sections (4×and 20×magnification) in the perilesional region at 24 h and 72 h post-injury. Data presented as means±standard error of the mean. Grey dashed line represents level of positive staining in 24 h sham rats. *p<0.05 compared with sham rats by Student t test. ^†p<0.05 compared with the 24 h and 48 h experimental groups by one-way analysis of variance. Scale bar=50 μm.