Used in biomedical research to quantify nuclear factor κB receptor activation factor (Rank) in rat samples, this ELISA kit enables the study of bone metabolism, osteoclast differentiation, and inflammatory processes. It is particularly valuable in preclinical studies related to osteoporosis, arthritis, and other bone-related diseases. The assay provides a sensitive and specific measurement of Rank protein levels in serum, plasma, or cell culture supernatants, supporting investigation into signaling pathways involved in bone resorption and immune regulation.