Tetrahydrobiopterin responsiveness in a large series of phenylketonuria patients

J Inherit Metab Dis. 2002 Aug;25(4):321-2. doi: 10.1023/a:1016514727870.

Abstract

In a group of 87 consecutive patients with hyperphenylalaninaemia born since 1990, only 3 patients showed a (temporary) decrease of serum phenylalanine levels after tetrahydrobiopterin (BH4) loading in usual doses (20 mg/kg body weight).

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biopterins / analogs & derivatives*
  • Biopterins / therapeutic use*
  • Female
  • Humans
  • Infant, Newborn
  • Male
  • Neonatal Screening
  • Phenylalanine / blood
  • Phenylalanine Hydroxylase / blood
  • Phenylalanine Hydroxylase / deficiency
  • Phenylketonurias / drug therapy*
  • Retrospective Studies

Substances

  • Biopterins
  • Phenylalanine
  • Phenylalanine Hydroxylase
  • sapropterin