Used in biomedical research to quantify levels of soluble interleukin-1 receptor type I in biological samples such as serum, plasma, or cell culture supernatants. This kit enables researchers to study the regulation of inflammatory responses, as IL-1sRI acts as a natural inhibitor of interleukin-1 signaling. It is particularly useful in investigations related to chronic inflammatory diseases, autoimmune disorders, and immune system modulation. The assay supports high sensitivity and specificity, allowing accurate measurement of IL-1sRI concentrations for both preclinical and clinical research applications.