FOXP3 and Crohn disease: The total amount of FOXP3 mRNA was 0.11 ± 0.026 arbitrary units (mean ± SEM, n = 11) in Crohn’s disease patients, which did not significantly differ (two-tailed unpaired Student’s t test) from the levels found, 0.095 ± 0.018 (mean ± SEM, n = 10), in healthy donors.