Abstract
The effect of tetrahydrobiopterin (BH(4)) administration was studied in three infants with BH(4) responsive phenylalanine hydroxylase (PAH) deficiency by correlating different BH(4) doses with plasma phenylalanine levels under defined protein intake.
MeSH terms
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Administration, Oral
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Biopterins / administration & dosage*
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Biopterins / analogs & derivatives*
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Dose-Response Relationship, Drug
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Drug Administration Schedule
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Female
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Follow-Up Studies
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Humans
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Infant
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Male
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Mutation*
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Phenylalanine / blood*
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Phenylalanine / drug effects
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Phenylketonurias / diagnosis
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Phenylketonurias / drug therapy*
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Phenylketonurias / genetics*
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Severity of Illness Index
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Treatment Outcome
Substances
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Biopterins
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Phenylalanine
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sapropterin