Related Experiment Video
Updated: Sep 13, 2026

Comprehensive Profiling of Dopamine Regulation in Substantia Nigra and Ventral Tegmental Area
Published on: August 10, 2012
Abstract:
Studies of the effects of inheritance on human catecholamine biosynthetic and metabolic enzymes are reviewed. Genetic polymorphisms have been shown to control the level of the biosynthetic enzyme dopamine beta-hydroxylase in serum and the level of the metabolic enzyme catechol-O-methyltransferase in a variety of tissues. Platelet monoamine oxidase, another catecholamine metabolic enzyme, is also under genetic control. These observations help to explain individual differences in response to treatment with catechol drugs and may explain some variations in the function of human catecholamine neurotransmitters. The biochemical genetic approach used to study the enzymes of catecholamine biosynthesis and metabolism could be used to investigate other aspects of adrenergic function and could serve as a model for studies of the effects of inheritance on other human neurotransmitter systems.
More Related Videos
11:26Assessment of Dopaminergic Homeostasis in Mice by Use of High-performance Liquid Chromatography Analysis and Synaptosomal Dopamine Uptake
Published on: September 21, 2017
13:35A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites
Published on: March 1, 2018
Related Concept Videos
Adrenergic Neurons: Neurotransmission
Synthesis: Catecholamine synthesis requires tyrosine, which is taken...
Adrenergic Agonists: Indirect-Acting Agents
One mechanism involves depleting stored catecholamines by displacing them from synaptic vesicles. These agents, known as "displacers," are transported into vesicles at the expense of noradrenaline. Examples include amphetamine and tyramine, which lack a catechol moiety, resulting in prolonged action, improved oral bioavailability, and...
Adrenergic Agonists: Chemistry and Structure-Activity Relationship
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of the aromatic...
Drugs Affecting Neurotransmitter Release or Uptake
Drugs Affecting Neurotransmitter Synthesis
Human Genetics
The complex relationship between genetics and psychology is observable through common biological components such...