ascorbic acid oxidation glutathione Vitamin C is oxidized in the extracellular space to dehydroascorbate Proposed scheme for Vit C

PTPN22 (short for protein tyrosine phosphatase non-receptor type 22), known as a risk factor in multiple autoimmune disorders, reduces T-cell activity by removing phosphate groups from phosphorylated proteins such as LCK, Fyn, and Zap70, which are associated with T-cell receptor signaling pathway

Blood glutathione and cysteine concentrations in twin children

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(2) normal temperature plus exogenous GSH treatment (NT+GSH): added 0.25 mM GSH in nutrient solution one day before the treatments and maintained at 0.25 mM GSH in the nutrient solution during the treatment period