Used for the quantitative measurement of tryptophan hydroxylase (TPH) activity in mouse tissue samples, this ELISA kit is essential in neuroscience and immunology research. It enables researchers to assess serotonin biosynthesis levels by measuring TPH, the rate-limiting enzyme in the pathway. Commonly applied in studies related to mood disorders, gastrointestinal function, and neurodevelopmental conditions, the kit provides a reliable and sensitive method to evaluate enzyme activity in brain, gut, or pineal gland extracts. Its high specificity allows differentiation of TPH1 and TPH2 isoforms depending on the assay design, supporting targeted investigation into peripheral versus central serotonin production.