As nouns the difference between epinephrine and tetrahydrobiopterin
is that epinephrine is (hormone|neurotransmitter|organic compound) a catecholamine hormone and neurotransmitter; as a hormone, secreted by the adrenal gland in response to stress (when it stimulates the autonomic nervous system); as a neurotransmitter, synthesized from norepinephrine while tetrahydrobiopterin is (biochemistry) a naturally-occurring nutrient and essential cofactor of the three aromatic amino acid hydroxylase enzymes, used in the biosynthesis of the neurotransmitters serotonin, melatonin, dopamine, norepinephrine, epinephrine, and nitric oxide.
epinephrine
Noun
(-)
(hormone, neurotransmitter, organic compound) A catecholamine hormone and neurotransmitter; as a hormone, secreted by the adrenal gland in response to stress (when it stimulates the autonomic nervous system); as a neurotransmitter, synthesized from norepinephrine.
Synonyms
* (hormone and neurotransmitter) adrenalin, adrenaline, 4,5-?-trihydroxy-N -methylphenethylamine
Hypernyms
* (hormone) catecholamine
* (neurotransmitter) monoamine, phenethylamine
Related terms
* norepinephrine
tetrahydrobiopterin
English
Noun
(
-)
(
wikipedia tetrahydrobiopterin)
(biochemistry) A naturally-occurring nutrient and essential cofactor of the three aromatic amino acid hydroxylase enzymes, used in the biosynthesis of the neurotransmitters serotonin, melatonin, dopamine, norepinephrine, epinephrine, and nitric oxide.
Synonyms
* sapropterin