Measurement of pyridoxal 5′-phosphate, pyridoxal, and 4-pyridoxic acid in the cerebrospinal fluid of children

We showed the age dependence of PLP and PL in CSF from pediatric patients. Epileptic patients had lower PLP concentrations and PLP/PL ratios than non-epileptic patients, but it is unknown whether this is the cause, or a result, of epilepsy.