Human Diamine Oxidase (DAO) ELISA Kit

Copper-dependent amine oxidase DAO, encoded by the human AOC1 gene, catalyzes the oxidative deamination of histamine and related biogenic diamines in extracellular compartments, making its measurement relevant to research on histamine intolerance, mast-cell-mediated responses, and intestinal mucosal integrity. The Assay Genie Human Diamine Oxidase (DAO) ELISA Kit is configured as a 96-assay, microplate-based immunoassay with a chromogenic readout, intended for research use only and applicable to serum samples, plasma-derived fractions, and tissue homogenate preparations in both clinical-cohort and tissue-based investigations. Standard refrigerated storage between uses and protection of chromogenic components from light help preserve signal stability across longer study timelines, while the plate-reader-compatible workflow integrates readily into laboratories already running immunoassay panels for amine metabolism, food-sensitivity mechanisms, or mucosal biomarker discovery. Because DAO acts on histamine released into tissues and the bloodstream rather than the intracellular pools handled by HNMT, the kit complements downstream work on extracellular amine clearance and supports studies of altered DAO activity in gastrointestinal, allergic, and inflammatory research contexts.