IL22 and type 1 diabetes mellitus: Three days after transplantation, flow cytometric analysis of liver cells indicated an increased number of IL-22-producing CD3-DX5-NK1.1+ cells compared with wild type control (2900±200 versus 18700±1900; p<0.001, ANOVA test; Fig. 2a) and T1D mice (3400±1200 versus 18700±1900; p<0.001, ANOVA test).