TNF and colitis: Hydroethanolic extract reduces colonic injury and attenuates oxidative damage in a TNBS model of colitis by increasing mucus production, decreasing leukocyte migration, and decreasing IL‐17, IL‐1β, TNF‐α and COX‐2 expression (in vivo and in vitro), reducing colonic damage and attenuating oxidation and inflammation in a TNBS model of colitis.38