Figure 1.

Acetylation on histone 4 in the trinitrobenzene sulfonic acid (TNBS) rat model of inflammation. A: Sham (saline treated) operated and TNBS treated rat large intestine. Rats were Sham or TNBS treated for 7 days before sacrifice. Well-advanced inflammation is apparent in the colon of the TNBS rat model. B: Pan acetylation on histone 4 (H4). The Sham model was saline-treated and therefore less inflamed (control). Results were obtained by Western blotting. The ratio of the density of histone H4 bands over β-actin control bands was calculated. In order to evaluate changes in density from different Western blotting experiments control densitometry was denoted as 100% and differences were accounted as increase percentage of the control. Representative examples of bands obtained are also illustrated. Columns represent the densitometric evaluation of three independent experiments (mean ± SEM). (*p < 0.05 vs Sham proximal or Sham distal respectively).