Used to measure c-Jun N-terminal kinase (JNK) activity in rat samples, this ELISA kit is widely applied in research on cellular stress responses, inflammation, and apoptosis. It enables researchers to quantify phosphorylated JNK levels, helping assess signaling pathway activation in studies related to neurodegenerative diseases, diabetes, cancer, and liver injury. The kit supports high-throughput analysis in preclinical studies, making it valuable for evaluating drug effects and toxicology in rat models. Its sensitivity and specificity allow reliable detection even in small sample volumes, such as tissue lysates or cultured cells.