Used for quantitative determination of Rat Activin M (OSM) in biological samples such as serum, plasma, and cell culture supernatants. This research kit is specifically designed for use in experimental studies to measure protein levels involved in inflammatory responses, cell differentiation, and immune regulation in rat models. It enables high sensitivity and specificity detection, supporting research in neuroscience, oncology, and metabolic disease fields. The assay is intended for laboratory research use only and not for diagnostic procedures in humans.