Allergen challenge affects lung expression of Slc26a4 and mRNAs encoding other proteins involved in ion transport. a, Effects of allergen on Slc26a4 expression in control mice. b, Effects of allergen on expression of ENaC mRNAs (Scnn1a, b, and g), Cftr and Clca3 in control and pendrin-deficient (Slc26a4-/-) mice. Results are means and error bars represent s.e.m., n = 4 mice per group. * p < 0.05, ** p < 0.01 vs. saline-challenged control mice (“Control / Saline”).