@article {10.3844/ajptsp.2007.30.38, article_type = {journal}, title = {CPI-1189 Protects against TNBS-induced Colitis in a Rodent Model}, author = {Meerveld, Beverley Greenwood-Van and Tyler, Karl}, volume = {2}, year = {2007}, month = {Jun}, pages = {30-38}, doi = {10.3844/ajptsp.2007.30.38}, url = {https://thescipub.com/abstract/ajptsp.2007.30.38}, abstract = {Nitrone-related therapeutics (NRTs) represents a new class of molecules that may be effective in treating inflammatory conditions. The goal of this study was to examine the effect of CPI-1189 in a rat model of inflammatory bowel disease (IBD). Colonic inflammation was induced by an enema of trinitrobenzene sulfonic acid (TNBS). Saline-enema treated rats served as controls. After 3 days colonic damage was assessed morphologically using a validated scoring system and through measurement of myeloperoxidase (MPO), an enzymatic marker of inflammation. We found that a dose-dependent protection from TNBS-induced colonic damage was observed in rats given 10-70 mg kgˉ1 of CPI-1189 treated p.o. 1 hr. before the TNBS enema. Consistent with the 55% absolute oral bioavailability of CPI-1189, greater protection (77%) was seen when CPI-1189 (30 mg kgˉ1) was administered intravenously 1 hr. before the TNBS enema. In a separate series of healing experiments where CPI-1189 was administer after the TNBS inflammatory response had peaked, CPI-1189 at a dose of 90 mg kgˉ1 p.o. reduced the TNBS colitis. CPI-1189 prevents and heals TNBS-induced colonic damage in rats suggesting that CPI-1189 may be a novel agent for the treatment of IBD.}, journal = {American Journal of Pharmacology and Toxicology}, publisher = {Science Publications} }