【Objective】 To observe the expression of c-Jun amino-terminal kinase(JNK) signal pathway(p-JNK and p-c-Jun) in mouse models with lipopolysaccharide(LPS)-induced acute liver injury and to explore the effects and the significance of JNK signal pathway in acute liver injury. 【Methods】 Mice were randomly divided into control group and acute liver injury model group induced by intraperitoneal injection of LPS. The mice were sacrificed at 1, 2, 4 and 30 h and the serum alanine transaminase(ALT) and aspartate tran...