tnbs model: Creative Biolabs is one of the most reliable industry leaders specialized in preclinical drug development. For colitis studies and anti-colitis drug development, we provide various chemically-induced rodent models covering TNBS, DSS, OXA, and NSAIDs. Moreover, we offer the most comprehensive services from model selection, model creation to experimental design, data collection, and analysis to guarantee that the most dependable results are obtained.