Abstract
Catecholamines (CAs) are a group of compounds that have the catechol group (3,4-dihydroxybenzene) connected to an amine group by an ethyl bridge. They participate in integrative, neural and endocrine mechanisms acting on the sympathetic-adrenal system. They are synthesized through the amino acid tyrosine, which can be derived from the diet or produced by the liver, and CAs can originate f…