Figure 3 from Glutathione synthesis. Semantic Scholar The transsulfuration pathway: a source of cysteine for glutathione in astrocytes Amino Acids Springer Nature Link Figure 2 from Regulation of neuronal glutathione synthesis. Semantic Scholar Three amino acids walk into a bar.the adventures of supporting glutathione synthesis in fatty liver disease using serine & nicotinamide riboside Dr. Kara Fitzgerald