L-Methylfolate supplementation in a child with autism and methyltetrahydrofolate reductase, enzyme gene C677TT allele

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Abstract

Errors in folate metabolism may play a role in the pathology of autism spectrum disorders because of increased vulnerability to oxidative stress. We report a case where L-methylfolate supplementation improved symptoms of aggression and disruptive behavior in a child with autism who tested positive for the C677TT allele of the methyltetrahydrofolate reductase enzyme gene. To our knowledge, this is the first report of L-methylfolate administration in this situation. Further controlled studies of L-methylfolate in this population are warranted.

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