Control fibroblasts were either freshly isolated or grown in culture for 48 hours on standard plastic culture dishes or on plastic culture dishes coated with collagen-I.

<p>Gene expression was measured for COL1A1 (A) and FN1 (B). The current-voltage relationship for TEA-sensitive K⁺-current is shown for control fibroblasts grown on plastic and collagen I plates (C). The number of dogs is indicated in the figure, with the patch clamp data showing the number of cells studied/number of animals. *<i>P</i><0.05 by ANOVA with Bonferroni post-hoc tests.