CUGBP2 expression in COX-1–/– and COX-2–/– mice after IR. (A) Real-time PCR analyses for basal HuR levels in the distal jejunum of different strains of mice. The data are represented as relative to C57BL/6. C57, C57BL/6; FvB, FvB/N; SJ, SJL/J. (B) Western blot analysis of HuR protein levels. (C) HuR and CUGBP2 expression in the knockout mice, presented as relative to wild-type (WT) control littermates. *, P = 0.02; **, P < 0.001. (D) RNA expression in the knockout mice after IR. (E) Western blot analyses in the knockout mice after IR. Data are representative of three experiments.