Conditions / Genetic

Schindler disease type 1

info ยท Genetic

A Schindler disease characterized by infantile onset of neuroaxonal dystrophy that has_material_basis_in homozygous or compound heterozygous mutation in the NAGA gene on chromosome 22q13.2.

Signs and symptoms

  • Strabismus
  • Developmental regression
  • Seizure
  • Hypotonia
  • Global developmental delay
  • Increased urinary O-linked sialopeptides
  • Generalized hypotonia
  • Severe intellectual disability
  • Reduced tissue alpha-N-acetylgalactosaminidase activity
  • Nystagmus

Also known as: NAGA deficiency type 1; alpha-N-acetylgalactosaminidase deficiency type 1