DCLK1 and infection: Thus, we found significant interactions of diet and infection for several genes, especially those related to the mucosal barrier (Table 5), such as DCLK1, HDAC9, IL13RA1, MUC2 and HDAC1 (Fold change 2.5, 1.9, 1.3, 1.3 and − 1.2, respectively).