Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
Etymologies
Examples
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Dudley and his colleagues knew that-in blood vessels-the problem was depletion of a chemical called tetrahydrobiopterin, or BH4, which is needed for the tissues to make NO.
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Dudley and his colleagues knew that -- in blood vessels -- the problem was depletion of a chemical called tetrahydrobiopterin, or BH4, which is needed for the tissues to make NO.
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-- the problem was depletion of a chemical called tetrahydrobiopterin, or BH4, which is needed for the tissues to make NO.
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[19] or secondary to eNOS uncoupling by limiting the availability of cofactors such as tetrahydrobiopterin, BH4
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(ACTH) - and dexamethasone-treated rats were further treated with sepiapterin, a precursor of tetrahydrobiopterin, or N-nitro -
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A chemical compound found normally in the blood, tetrahydrobiopterin, or BH4, shows promise in helping tissues create nitric oxide necessary for blood vessels to relax, Dudley said in the February issue of Circulation.
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T. gondii enzymes exhibited an absolute requirement for biopterin for activity using the stable tetrahydrobiopterin analog 6-MPH
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The dependency on the tetrahydrobiopterin analog 6-MPH
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The tetrahydrobiopterin cofactor, essential for the activity of these enzymes, is metabolized to
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Aromatic amino acid hydroxylases are dependent upon the cofactor tetrahydrobiopterin for activity.
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