https://www.selleckchem.com/products/lonidamine.html Marked reduction of inflammation and fibrosis-related gene expression in the kidney was also observed. In vitro, PAR1 and PAR2 agonists additively increased mRNA expression of Mcp1 or Pai1 in human endothelial cells. Changes induced by the PAR1 agonist were blocked by a NF-κB inhibitor, whereas those of PAR2 agonist were blocked by MAPK and/or NF-κB inhibitors. These findings suggest that PAR1 and PAR2 additively contribute to DKD pathogenesis, and dual blockade of both could be a novel therapeutic option for treatment of DKD patients.Contrast-induced acute kidney injury (CI-AKI) is a vexing problem and more than 70 million patients undergo studies utilizing iodinated contrast. The molecular mechanisms responsible for CI-AKI are poorly understood. The goal of the present paper was to determine the role of tissue growth factor-beta1 (TGF-β1)/ mothers against decapentaplegic homolog 3 (SMAD3) signaling and associated collagen expression in a murine model of intraarterial CI-AKI. Murine model of CI-AKI after intra-arterial contrast agent administration was created by first performing a partial nephrectomy to induce chronic kidney disease (CKD). Twenty-eight days later, 100μLof contrast agent (Iodixanol 320mgl/ml) or saline was administered via the carotid artery. Two days later, after contrast administration when compared to saline, the average serum creatinine was significantly elevated (P less then 0.05). In the cortex, there was a significant increase in the expression of pSMAD3 and gene expression of TGF-β1, TGFβR1 and TGFβR2 at day 2 in contrast group compared to saline group. The average gene expression of connective tissue growth factor (Ctgf), matrix metalloproteinase (MMP)-2, -9, collagen (Col) -Ia, and -IVa were significantly increased at 2 days after contrast administration (all P less then 0.05). Moreover, there was a decrease in Ki-67 staining in the cortex with increase in TUNEL in the cortex and medull