Used in biomedical research to quantitatively measure levels of human tyrosine hydroxylase (TH) in biological samples such as serum, plasma, cerebrospinal fluid, and tissue homogenates. This assay is particularly valuable in neuroscience and clinical research for studying dopamine synthesis, as TH is the rate-limiting enzyme in the production of catecholamines. The kit enables researchers to investigate conditions related to dopaminergic system dysfunction, including Parkinson’s disease, schizophrenia, and other neurological or psychiatric disorders. It is also applied in cell culture studies to assess the differentiation and function of dopaminergic neurons, especially in stem cell and neurotoxicity research. The high sensitivity and specificity of the ELISA format allow for reliable detection of TH even at low concentrations, supporting both basic research and potential biomarker validation studies.