Used to measure levels of interleukin-23 (IL-23) in biological samples such as serum, plasma, or cell culture supernatants from rats. This kit is primarily used in immunology and inflammation research to study the role of IL-23 in autoimmune diseases, such as arthritis, multiple sclerosis, and inflammatory bowel disease. It enables researchers to quantify IL-23 protein expression in experimental models, supporting evaluation of immune responses and therapeutic interventions. The assay is commonly applied in preclinical studies to assess drug efficacy, immune modulation, and cytokine network dynamics in rodent disease models.