Redox Profiling Reveals Clear Differences between Molecular Patterns of Wound Fluids from Acute and Chronic Wounds

Figure 6

Immunohistochemical detection of nitrotyrosine and poly(ADP-ribose) in ulcer biopsies. Tissue biopsies from healthy skin ((a), (b)) and chronic venous ulcers ((c), (d)) were stained for poly(ADP-ribose) ((a), (c)) and nitrotyrosine ((b), (d)). Scale bars represent 200 μm. Immunostainings were evaluated by a semiquantitative visual scoring, as described in the Methods section. ().