Conditions / Genetic

aromatic L-amino acid decarboxylase deficiency

info · Genetic · ICD-10: E70.81

An inherited metabolic disorder that is characterized by reduced production of serotonin and dopamine resulting in hypotonia, hypokinesia, ptosis oculogyric crises, and signs of autonomic dysfunction, and has_material_basis_in autosomal recessive inheritance o

An inherited metabolic disorder that is characterized by reduced production of serotonin and dopamine resulting in hypotonia, hypokinesia, ptosis oculogyric crises, and signs of autonomic dysfunction, and has_material_basis_in autosomal recessive inheritance of homozygous or compound heterozygous mutation in the dopa decarboxylase gene (DDC) on chromosome 7p12.

Signs and symptoms

  • Axial hypotonia
  • Limb dystonia
  • Diminished movement
  • Oculogyric crisis
  • Limb hypertonia
  • Athetosis
  • Irritability
  • Emotional lability
  • Gastroesophageal reflux
  • Tongue thrusting

Also known as: AADC deficiency