Functional Aspects:Tyrosine hydroxylase (TH) is an enzyme that catalyzes the conversion of L-tyrosine to L-DOPA in catecholamine (CA) biosynthesis. This antibody will help detect TH and also be a useful marker of all CA neurons. This may be of interest in researching CA alteration during the ageing process of the brain such as senile dementia and in neurodegenerative conditions like Parkinson’s disease.