Figure 4: Representative panels showing a decreased intensity of IHC IL-23R expression in atrophic glomerular mesangial cell cytoplasma in a patient reaching composite outcome (group A) (IHC stain, x400). (A) IHC IL-23R stain in a patient reaching composite outcome (group A), (B) IHC IL-23R stain in a patient not reaching composite outcome (group B), (C) positive control of IL-23R IHC stain, (D) negative control of IL-23R IHC stain. The arrow indicates the IL-23R IHC stain in an atrophic glomerular mesangial cell.