A novel mutation of laminin β-2 gene in Pierson syndrome manifested with nephrotic syndrome in the early neonatal period

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Aydın B., Ipek M., Özaltın F., Zenciroǧlu A., Dilli D., Beken S., ...More

Genetic Counseling, vol.24, no.2, pp.141-147, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 2
  • Publication Date: 2013
  • Journal Name: Genetic Counseling
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Page Numbers: pp.141-147
  • Keywords: Chromosome, Microcoria, Mutation, Syndrome
  • Lokman Hekim University Affiliated: No


Pierson syndrome is a rare autosomal recessive disorder which is mainly characterized by congenital nephrotic syndrome (CNS), diffuse mesangial sclerosis (DMS) and distinct ocular abnormalities, including microcoria. Most affected children exhibit early onset of chronic renal failure, neurodevelopmental deficits, and blindness. It is caused by a homozygous or compound heterozygous mutation in the gene encoding laminin beta-2 (LAMB2) on chromosome 3p21. In this article, we report on a patient with CNS, bilateral megalocornea and microcoria. The patient had developed renal failure at very early postnatal period and died of septic shock. A novel homozygous donor splice mutation (IVS4 + 2T > C) in LAMB2 gene was identified in the patient.