n. a group of biologically-active amines which naturally occur in the body. These psychoactive neurotransmitters include serotonin, dopamine, epinephrine, and norepinephrine. Sometimes referred to as [..]

A group of naturally occurring Amines derived by enzymatic Decarboxylation of the natural Amino Acids. Many have powerful physiological effects (e.g., Histamine, Serotonin, Epinephrine, Tyramine). Tho [..]

a biologically synthesized substance, fundamentally a nitrogen compound, widely dispersed in the body. Some hormones, such as adrenaline (epinephrine) are compounds containing an amine. See also catec [..]