As glycine acts as a powerful inhibitory neurotransmitter in the brain and spinal chord [108] and glycine transporters are differentially expressed throughout the CNS [109], it may be relevant for future studies of children with autism spectrum disorders to examine whether there are abnormalities in expression of glycine transporters in the CNS or in glycine transport across the choroid plexus in children with autism spectrum disorders
These are reasonable interventions for appropriate candidates, with genuine uncertainty about how well any individual result generalizes
Sublingual or liposomal forms of glutathione may be more bioavailable, favorably impacting systemic glutathione levels
However, body composition changes remain minimal in the early phase
[DOI] [PMC free article] [PubMed] [Google Scholar] 580.El-Attar M., Said M., El-Assal G., Sabry N.A., Omar E., Ashour L