o-linked with glutathione O-GlcNAc Allergen Free Disclaimer Glutathione Treatments 101: Part 1
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Notably, we found no reports indicating that high intake of Gln or Gly, which were affected by excretion following theanine administration in this study, influences blood glucose levels

On the other hand, D-serine mainly causes dose-related (500 mg/kg) nephrotoxicity in rats, manifested as reversible acute tubular necrosis (Okada et al., 2017)

doi: 10.7554/eLife.34408 19

Non-enzymatic biomarkers of NS-specific OS include advanced protein oxidation products, malondialdehyde (a lipid peroxidation marker), 8-hydroxydeoxyguanosine (a marker of oxidative DNA damage), and total antioxidant capacity (TAC)
