Genotyping of patients with phenylketonuria from different regions of Russia for determining BH4 responsiveness

Genotyping of patients with phenylketonuria from different regions of Russia for determining BH4... To date, the efficacy of the phenylalanine hydroxylase (PAH) cofactor is proved for the treatment of both BH4-dependent hyperphenylalaninemia and phenylketonuria patients with mutations in the PAH gene. Since the patient’s response depends on the presence of residual PAH enzyme activity, it is advisable to search for mutations in the PAH gene to identify the potential responders and nonresponders to therapy. Four hundred thirty-five phenylketonuria patients from 13 regions of the Russian Federation were genotyped in order to identify responders and nonresponders to tetrahydrobiopterin (BH4) therapy. According to the results of this study, the number of probable nonresponders to the BH4 treatment exceeds 50% owing to a higher overall allelic frequency of “severe” PAH gene mutations. Responder patients with two “mild” mutations in the PAH gene were identified (1.6%). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Genotyping of patients with phenylketonuria from different regions of Russia for determining BH4 responsiveness

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Publisher
Pleiades Publishing
Copyright
Copyright © 2017 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795417060060
Publisher site
See Article on Publisher Site

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