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Tetrahydrobiopterin Responsiveness in a Series of 53 Cases of Phenylketonuria and Hyperphenylalaninemia in Iran Publisher



Setoodeh A1 ; Yarali B2 ; Rabbani A3 ; Khatami S4 ; Shams S5
Authors
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Authors Affiliations
  1. 1. Division of Pediatric Endocrinology, Children's Medical Center, Tehran, Iran
  2. 2. Division of Pediatric Neurology, Children's Medical Center, Tehran, Iran
  3. 3. Growth and Development Center, Children's Medical Center, Tehran, Iran
  4. 4. Division of Biochemistry, Pasteur Institute, Tehran, Iran
  5. 5. Division of Pathology, Children's Medical Center, Tehran, Iran

Source: Molecular Genetics and Metabolism Reports Published:2015


Abstract

To determine the prevalence of 6R-Tetrahydrobiopterin (BH4) responsive phenylketonuria (PKU) in 53 cases of patients with various classification of hyperphenylalaninemia and PKU Excluding the BH4 deficient type referring to children's medical center in Iran (phenylalanine 360-2420 μmol/L), the single dose of 20 mg/kg (Kuvan®) and duration of 24 h was used. Results Among the 4 different categories of mild hyperphenylalaninemia requiring treatment, mild, moderate and classic PKU, the BH4 responders were 90%, 35.7%, 5.6% and 0% respectively after 24 h. Conclusion BH4 responsiveness is more prevalent in mild hyperphenylalaninemia and mild PKU patients in Iran. © 2015 The Authors. Published by Elsevier Inc.