Figure 6. Nitrite/nitrate concentration in thoracic aorta macerates obtained from the control and adjuvant-induced arthritis (AIA) groups 15 days after induction/false induction (A). Photomicrographs of histological fields of the thoracic aortic wall of the control (B) and AIA (C) groups 15 days after induction/false induction with inducible nitric oxide synthase (iNOS) immunolabeled and counterstained with hematoxylin (scale bar=50 µm) and the quantification of iNOS immunolabeling in these fields (D), characterized by brownish staining. al: adventicia layer; L: lumen. Data are reported as means±SE. *P<0.05, Student's t-test. In parentheses is number of animals in each group.
