Glutathione precursor amino acids, permeases and enzymes, involved in Download Scientific Diagram Figure 3 from Glutathione synthesis. Semantic Scholar Appraising the Role of Astrocytes as Suppliers of Neuronal Glutathione Precursors Glutathione deficiencies were frequently seen in the sickest patients during the pandemic. This explains why individuals with poor diets, obesity or compromised gut health were more likely to have worse disease. #nac # Amino acid metabolism in health and disease Signal Transduction and Targeted Therapy