GABA is the primary inhibitory neurotransmitter in the human brain and is implicated in several neuropathologies. Glutathione is a major antioxidant in the brain and is considered a marker of oxidative stress. Several studies have reported age-related declines in GABA levels in adulthood, but the aging dynamics of both GABA and glutathione have not been well explored in childhood. We demonstrate increases in GABA and no differences in glutathione with age in a healthy pediatric sample (5.7-13.9 years). This study provides insight into neuronal maturation in children and may facilitate better understanding of the pathophysiology of developmental disorders.
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