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Effects of vitamin B6 on averaged evoked potentials in infantile autism
Insights
Vitamin B6 and magnesium treatment increased middle-latency evoked potential amplitude in autistic children, alongside decreased urinary homovanillic acid. Normal children showed opposite effects, suggesting B6 and magnesium impact neurochemistry differently in autism.
Area of Science:
- Neuroscience
- Biochemistry
- Developmental Pediatrics
Background:
- Autistic children often exhibit altered averaged evoked potentials (lower amplitudes, shorter latencies) compared to neurotypical children.
- Vitamin B6 and magnesium supplementation has shown potential for moderate clinical improvement in some autistic individuals.
Purpose of the Study:
- To investigate the biochemical and electrophysiological effects of vitamin B6 and magnesium in autistic children.
- To compare these effects with those observed in normal children.
Main Methods:
- Studied 12 autistic children and 11 normal children.
- Administered vitamin B6 and magnesium treatment.
- Measured middle-latency evoked potentials and urinary homovanillic acid levels.
Main Results:
- Autistic children showed increased middle-latency evoked potential amplitude during vitamin B6 treatment.
- Urinary homovanillic acid decreased in autistic children during treatment.
- Normal children exhibited the reverse effects.
Conclusions:
- Vitamin B6 and magnesium influence neurophysiological and biochemical markers in autistic children.
- The observed changes suggest a potential therapeutic mechanism for vitamin B6 and magnesium in autism.
- Differential responses in autistic versus normal children highlight specific interactions with neurodevelopmental pathways.
Abstract:
In autistic children, averaged evoked potentials have been reported to have lower amplitudes and shorter latencies than those of normal children. Also, moderate clinical improvement has been observed in some autistic children after treatment with vitamin B6 and magnesium. We have studied biochemical and electrophysiological effects of vitamin B6 and magnesium in 12 autistic children and in 11 normal children. During treatment of the autistic children with B6, an increase of amplitude of middle-latency evoked potentials and a decrease of urinary homovanillic acid were found. The reverse was noted in the normal subjects.