CS-FMT impaired intestinal barrier and imbalanced cytokines of mice. (A) Histological examination of colon. The sections were stained with H&E. Original magnification, ×200. (B) Immunohistochemistry determination of ZO-1 and Occludin expression in the colon tissue of mice. Original magnification, ×200. (C) Immunofluorescent analysis of ZO-1 and Occludin in the colon tissue of mice. Original magnification, ×200. (D) A total of 7 cytokines (IL-5, IL-6, IL-9, IL-10, IL-17A, IL-17F and IL-13) were found to be significantly altered in the peripheral serum of B-CS-FMT mice. *P < 0.05, **P < 0.01, ***P < 0.001.