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Pyridoxine-dependent epilepsy: A novel mutation in a Tunisian child

T Ben Younes1, I Kraoua1, H Benrhouma1

  • 1Child Neurology, Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology of Tunis, rue Jbel Lakhdhar, La Rabta Jebbari, 1007 Tunis, Tunisia; UR 12SP24 National Institute Mongi Ben Hmida of Neurology, Tunis, Tunisia.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie
|January 30, 2017
PubMed

Insights

Pyridoxine-dependent epilepsy (PDE) is a rare metabolic disorder. A novel mutation in the ALDH7A1 gene was identified in a Tunisian child, offering insights into PDE

Area of Science:

  • Biochemistry
  • Genetics
  • Neurology

Background:

  • Pyridoxine-dependent epilepsy (PDE) is a rare autosomal recessive metabolic disorder.
  • Seizures in neonates and infants are unresponsive to standard antiepileptic drugs.
  • Prompt treatment with pyridoxine is crucial to prevent severe encephalopathy.

Purpose of the Study:

  • To identify the genetic cause of PDE in a Tunisian child.
  • To report a novel mutation in the ALDH7A1 gene associated with PDE.

Main Methods:

  • Genetic analysis of the ALDH7A1 gene.
  • Clinical evaluation of a patient with PDE.

Main Results:

  • A novel mutation in the ALDH7A1 gene was identified.
  • This mutation is associated with pyridoxine-dependent epilepsy in the studied child.

Conclusions:

  • The ALDH7A1 gene is confirmed as a cause of PDE.
  • Identification of novel mutations expands the understanding of PDE's genetic basis.

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