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Melatonin vs Tetrahydrobiopterin - What's the difference?

melatonin | tetrahydrobiopterin |

As nouns the difference between melatonin and tetrahydrobiopterin

is that melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals 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.

melatonin

English

(wikipedia melatonin)

Noun

(en-noun)
  • A hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals
  • Any material similar in its chemistry and effect to the natural hormone.

    • 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