Used in biomedical research to measure levels of hematopoietic prostaglandin D synthase (HPGDS) in biological samples such as serum, plasma, or tissue homogenates. This ELISA kit enables researchers to study the role of HPGDS in inflammatory responses, allergic diseases, and immune regulation. It is commonly applied in studies related to asthma, allergic rhinitis, and neuroinflammatory conditions where prostaglandin D2 pathways are involved. The assay provides a quantitative method to assess enzyme expression and activity under experimental or pathological conditions, supporting drug development and mechanistic studies in immunology and neuroscience.