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[Glutaric aciduria type I]

J M Prats Viñas1, M A Ribes Rubio, M P Briones Godino

  • 1Dpto. de Pediatría, Hospital de Cruces, Baracaldo, Vizcaya.

Anales Espanoles De Pediatria
|April 1, 1993
PubMed
Summary
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Glutaric aciduria type I diagnosis can be challenging, sometimes requiring measurement of total glutaric acid and glutaryl-carnitine. Early treatment with riboflavin and carnitine may prevent neurological complications in affected patients.

Area of Science:

  • Biochemistry
  • Metabolic Disorders
  • Neurology

Background:

  • Glutaric aciduria type I (GA-I) is an organic acidemia.
  • Diagnosis typically involves measuring glutaric acid in urine.

Observation:

  • Three patients with GA-I are presented.
  • Two were diagnosed via free glutaric acid in urine (CG/EM method).
  • One patient had only slightly elevated levels, requiring total glutaric acid and glutaryl-carnitine analysis.

Findings:

  • Decreased serum carnitine levels were observed in two patients.
  • Clinical presentation included signs of neostriatal dysfunction mimicking cerebral palsy.
  • Macrocephaly and widened subarachnoid spaces were noted.
  • Asymptomatic neurological status in some homozygous patients contrasts with symptomatic cases.

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Implications:

  • Accurate biochemical diagnosis is crucial, especially when urinary free glutaric acid is not significantly elevated.
  • Prompt administration of riboflavin and carnitine may be a therapeutic strategy to prevent neurological deterioration.
  • Understanding the spectrum of clinical and biochemical presentations is vital for timely intervention.