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Related Experiment Videos

Biotinidase deficiency: early neurological presentation

J E Collins1, N S Nicholson, N Dalton

  • 1Newcomen Centre, Guy's Hospital, London, UK.

Developmental Medicine and Child Neurology
|March 1, 1994
PubMed
Summary

Biotinidase deficiency is a treatable cause of severe neurological issues. Early diagnosis and treatment are crucial for preventing developmental delays and seizures in infants.

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Area of Science:

  • Biochemistry
  • Genetics
  • Pediatric Neurology

Background:

  • Biotinidase deficiency is an inherited metabolic disorder affecting biotin metabolism.
  • Early diagnosis and intervention are critical for managing the condition and preventing severe outcomes.

Observation:

  • Three pediatric cases of biotinidase deficiency are presented.
  • Two infants exhibited anticonvulsant-resistant seizures, developmental delay, and hypotonia starting at eight weeks.
  • A third patient developed ataxia and alopecia at 14 months, succumbing to sudden death at 19 months.

Findings:

  • Delayed diagnosis was noted in all three cases, highlighting a potential gap in clinical recognition.
  • Prompt treatment demonstrated effectiveness in mitigating neurological symptoms in the early-onset cases.

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Implications:

  • Biotinidase deficiency is a treatable condition, emphasizing the importance of timely diagnosis.
  • Increased awareness and diagnostic vigilance are necessary to prevent severe, irreversible neurological damage in affected children.