Effects of PDTC on the activation of DNA binding nuclear factors in the kidney (A) and heart (D). EMSA for the detection of NF-κB shows a higher binding activity of dTGR kidney and heart homogenates compared with SD rats. NF-κB DNA binding activity in the kidney was markedly reduced by PDTC treatment and even more in the heart. Each lane represents a separate animal. Renal homogenates were incubated with antibodies against the NF-κB subunits anti-p50, anti-p65, anti-c-Rel, and anti-Rel B (B). Specificity of binding (C) was demonstrated by competition of excess unlabeled oligonucleotides containing the kB site from the MHC-enhancer (H2K). EMSA was performed 3 times independently with similar results.