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Every cell makes it from three amino acids cysteine, glycine, and glutamic acid

In a study conducted on rats with ASD, it was observed that the NAA/total creatine (tCr) ratio, glutamate/GABA ratio and tCr level in the prefrontal cortex were substantially associated with the lack of social behavior in rats [60]

Multi-layered prevention and treatment of chronic inflammation, organ fibrosis and cancer associated with canonical WNT/-catenin signaling activation (Review)

Bellet H, Rejou F, Vallat C, Mion H, Dimeglio A (1999) Cystinylglycinuria: A new neurometabolic disorder

They serve as entry points into the cell for external signals, which include hormones, neurotransmitters, therapeutics and potential drugs like cannabinoids, and other environmental stimuli