In the AIH group, the serum level of IL‐17 was positively correlated with serum levels of p‐JNK and p‐p38 (R = 0.569, P < 0.05 for p‐JNK and R = 0.535, P < 0.05 for p‐p38) and negatively correlated with MKP‐1 (R = −0.736, P < 0.01). The gene discussed is MAPK8; the disease is autoimmune hepatitis.