Used to measure levels of interleukin-19 in biological samples such as serum, plasma, or cell culture supernatants. Helps in studying inflammatory responses, immune system regulation, and autoimmune diseases in rat models. Commonly applied in preclinical research to evaluate the effects of drugs or treatments on cytokine production. Supports research in conditions like asthma, arthritis, and skin disorders where IL-19 plays a role in disease progression. Provides a reliable, sensitive, and specific method for quantifying protein expression in experimental studies.