Used for the quantitative measurement of Osteopontin (OPN) levels in rabbit biological samples such as serum, plasma, and cell culture supernatants. This ELISA kit is specifically designed for research purposes to support studies related to bone metabolism, inflammation, and tissue remodeling in rabbit models. It enables accurate detection of OPN, a protein involved in bone mineralization and immune regulation, making it valuable in preclinical research on osteoporosis, arthritis, and other skeletal or inflammatory diseases. The assay provides high sensitivity and specificity, allowing researchers to assess disease progression or treatment effects in experimental settings.