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Figure 6 (A) Levels of phospho-I-kappa-B-alpha measured by Western blotting in the right ventricular myocardium of infants with tetralogy of Fallot (TOF) (solid bar; n = 7) or ventricular septal defect (VSD) (open bar; n = 8). Band intensities for phospho-I-kappa-B-alpha are normalized for bands of beta-actin. Results are expressed as the mean value ± SEM. (B) Exemplary gel obtained after Western blotting representative of independent experiments in seven patients with TOF and eight with VSD, showing phosphorylation of I-kappa-B-alpha in all patients. The upper panel includes positive controls (PC) (human monocytes stimulated with endotoxin). M = marker.