Alcian blue staining of deparaffinised sections of jejunum (A, B, C, magnification ×200) and ileum (D, E, F, magnification ×400) from wild type MF1 (A, D) and mutant F28 CF/1-CftrTgH(neoim)Hgu(B, E) and F27 CF/3-CftrTgH(neoim)Hgu(C, F) animals showed focal hypertrophy of goblet cells in the ileum of the two inbred CftrTgH(neoim)Hgumutant mice. Goblet cell counts are given as percentage of all epithelial cells. From each strain two mice and three sections/mouse were counted. Goblet cell count: CF/1 = 22.7% ± 2.3 (p = 0.112, p-value CF/1 compared to MF1), CF/3 = 23% ± 2.8 (p = 0.172, p-value CF/3 compared to MF1), MF1 = 16.8% ± 1.2. The jejunal sections of the same mice did not show any signs of goblet cell hypertrophy and were similar to wild type MF1 (Goblet cell count: CF/1 = 7.4% ± 0.4 (p = 0.18, p-value CF/1 compared to MF1), CF/3 = 8.5% ± 1.2 (p = 0.77, p-value CF/3 compared to MF1), MF1 = 8.8% ± 0.7.