Colonic DiseasesInflammatory Bowel DiseasesCrohn DiseaseColitis, UlcerativeColonEnemaIntestinal MucosaRectumColonoscopyColitisColonic Diseases, FunctionalColonic NeoplasmsIrritable Bowel SyndromeMesalamineDextran SulfateTrinitrobenzenesulfonic AcidGastrointestinal AgentsIntestinesAminosalicylic AcidsAzathioprineSulfasalazine6-MercaptopurineIntestinal DiseasesColonic PolypsIleitisDisease Models, AnimalShort Bowel SyndromeGastrointestinal TransitNod2 Signaling Adaptor ProteinIleumProbioticsIntestine, LargeGastrointestinal MotilityDiverticulosis, ColonicInflammationGastrointestinal TractAnti-Inflammatory AgentsPyoderma GangrenosumFecesAnti-Inflammatory Agents, Non-SteroidalMice, Inbred C57BLCase-Control StudiesColectomyDefecationMetagenomeTumor Necrosis Factor-alpha