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[Depression of serum pyridoxal levels in theophylline-related seizures]

T Seto1, H Inada, N Kobayashi

  • 1Department of Pediatrics, Osaka City University Medical School.

No to Hattatsu = Brain and Development
|August 1, 2000
PubMed

Insights

Theophylline treatment may lower seizure threshold by decreasing vitamin B6 (pyridoxal) levels in children with asthma. Lower serum pyridoxal was observed in asthmatic children and those who experienced seizures.

Area of Science:

  • Pediatric Neurology
  • Pharmacology
  • Biochemistry

Background:

  • Theophylline is a common asthma medication.
  • Seizures are a potential side effect of theophylline.
  • Vitamin B6 (pyridoxal) is crucial for neurological function.

Observation:

  • Serum pyridoxal (PAL) levels were measured in children with bronchial asthma receiving theophylline.
  • Asthmatic children on theophylline showed significantly lower serum PAL levels compared to controls.
  • Three out of four children experiencing seizures (with or without fever) had low serum PAL levels.

Findings:

  • Theophylline treatment is associated with a significant decrease in serum pyridoxal (PAL) levels.
  • Low serum PAL levels were frequently observed in children who had seizures, suggesting a link.

Implications:

  • Theophylline-induced decrease in serum pyridoxal may reduce the seizure threshold.
  • Monitoring vitamin B6 status could be important for children treated with theophylline.
  • Further research is warranted to confirm the causal relationship and explore supplementation strategies.

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