Used to measure levels of interleukin-17A in biological samples from rats, such as serum, plasma, or cell culture supernatants. Commonly applied in immunology and inflammation research to study autoimmune diseases like arthritis, multiple sclerosis, and inflammatory bowel disease in rat models. Helps evaluate the role of IL-17A in immune responses and assess the effectiveness of therapeutic interventions targeting the IL-17 pathway. Provides a quantitative and sensitive method for monitoring cytokine expression during disease progression or treatment.