CCN2 and renal fibrosis: In proliferative nephritis, the log10 mRNA expression of alpha-actinin-4 (p = 0.002), podocin (p = 0.008), and podocalyxin (p = 0.026) differed from the controls, but not the molecules related to renal fibrosis (TGF-β1, CTGF, and VEGF-A: p>0.05).