Used to measure D-amino acid oxidase (DAO) activity in mouse biological samples such as serum, plasma, tissue homogenates, and cell lysates. This ELISA kit is commonly applied in research settings to study DAO function in neurological disorders, immune responses, and gut health, as DAO plays a key role in metabolizing D-amino acids, particularly D-serine, which modulates NMDA receptor activity. It is also used in toxicology and drug development studies where changes in DAO levels may indicate metabolic disturbances or treatment effects. The assay enables high-throughput, quantitative analysis with high sensitivity and specificity, making it suitable for preclinical research in immunology, neuroscience, and pharmacology.