Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Two Novel Mutations in the Argininosuccinate Lyase Gene in Iranian Patients and Literature Review Publisher



Rostami P1, 2, 3 ; Haberle J4 ; Setoudeh A2, 3 ; Zschocke J5 ; Sayarifard F1, 2, 3
Authors
Show Affiliations
Authors Affiliations
  1. 1. Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Children’s Medical Center, Pediatrics Center of Excellence, Tehran, Iran
  4. 4. Devision of Metabolism, University Children’s Hospital Zurich and Children’s Research Centre, Zurich, Switzerland
  5. 5. Division of Human Genetics, Medical University Innsbruck, Innsbruck, Austria

Source: Iranian Journal of Pediatrics Published:2017


Abstract

Introduction: The argininosuccinate lyase (ASL) gene encodes argininosuccinate lyase (ASL), which is one of the six enzymes of the urea cycle that detoxifies blood ammonia. Argininosuccinate lyase deficiency impairs the function of the urea cycle and causes hyperammonemia, neurodevelopmental delay and hepatopathy. Case Presentation: Here we report two patients with argininosuccinate aciduria. They were treated with peritoneal dialysis and scavenger drugs. Molecular genetic testing showed two novel homozygous mutations, c.146T > G (p.Leu49Arg) in exon 3 and c.1144-1G > C in intron 15 of the ASL gene. Conclusions: This report intends to underline the importance of pediatricians being aware of the existence of a metabolic disease in any ill neonate. Diagnosis of urea cycle disorders is particularly important because of availability of effective treatment options. © 2017, Iranian Journal of Pediatrics.