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Allergy & Immunology1219 papers

Disorder of neurometabolic regulation

Last edited: 4/13/2026

Overview

Serine-deficiency syndromes are a group of neurometabolic disorders caused by defects in enzymes involved in serine biosynthesis, leading to neurological and developmental impairments 21.

Diagnosis

  • Elevated levels of serum glycine and threonine 21.
  • Urinary excretion of elevated amounts of phosphoglycerate and serine 21.
  • Genetic testing identifying specific enzyme deficiencies (e.g., phosphoglycerate dehydrogenase, phosphoserine phosphatase) 21.
  • Management

  • Dietary management focusing on serine supplementation to correct metabolic imbalances 21.
  • Supportive care including physical and occupational therapy to address developmental delays 21.
  • Monitoring for complications such as intellectual disability and seizures, with symptomatic treatment as needed 21.
  • Special Populations

  • Pediatrics: Early diagnosis and intervention are crucial for managing developmental outcomes 21.
  • Elderly: Not typically applicable as these are primarily pediatric conditions 21.
  • Comorbidities: Focus on managing associated neurological symptoms alongside primary metabolic support 21.
  • Key Recommendations

  • Initiate dietary serine supplementation upon diagnosis to mitigate metabolic imbalances (Evidence: Strong 21).
  • Implement comprehensive supportive therapies including physical and occupational therapy to enhance developmental outcomes (Evidence: Moderate 21).
  • Regular monitoring for neurological complications and provide symptomatic treatment as required (Evidence: Expert opinion 21).
  • References

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