Effects of the CRH-R1 antagonist on Th2 cytokines and OVA-specific IgE in the ileum, and ileal permeability. Effects of the CRH-R1 antagonist on ileal mRNA expressions of IL-5 (A), IL-13 (B), and IL-4 (C) in WAS + OVA-treated mice. Effects of the CRH-R1 antagonist on ileal protein levels of IL-5 (D), IL-13 (E), and OVA-specific IgE (F) in WAS + OVA-treated mice. Effects of CRH-R1 antagonist on TEER (G), FITC-dextran flux (H), and mRNA expression of zonulin (I) in the ileum of WAS + OVA-treated mice. * p < 0.05, ** p < 0.01. CRH-R1, corticotropin-releasing hormone type 1 receptor; FITC, fluorescein isothiocyanate; IgE, immunoglobulin E; IL, interleukin; OVA, ovalbumin; TEER, transepithelial electrical resistance; Th2, type 2 helper T cell; WAS, water avoidance stress.