CHONDROITIN SULFATE AND GLUCOSAMINE SULFATE AS PROTECTIVE AND ANTI-INFLAMMATORY AGENTS IN THE ULCERATIVE COLITIS DSS MODEL IN RATS.

Chondroitin sulfate (CS) and glucosamine (GlcN) are indicated for the treatment of some inflammatory diseases, such as osteoarthritis, mainly because of the anti-inflammatory effects in reducing metalloproteinases activities (MMP), and other inflammatory mediators. Herein, we reported the structure of the CS, the anti-inflammatory and protective effects of the CS, and GlcN administration in ulcerative colitis model induced by dextran sulfate sodium (DSS) in rats. Experimental data indicated that CS disaccharide composition is very similar to the C4S standard, with modal molecular weight at 30.4 kDa. Orally administration of the CS/GlcN improved the severity of acute colitis with reduction the histological score and goblet cells destruction. We also observed a decreasing in NO production, myeloperoxidase and MMP, especially MMP-9, activities. Moreover, CS/GlcN not cytotoxic in the intestinal epithelial cells. These results indicate that combination CS/GlcN showed improvements in intestinal inflammation and protection intestinal barrier, suggesting CS/GlcN might have beneficial effects in treatment of IBD.