While several studies examined GPx activity [63, 71, 72, 74, 81, 83, 84] or its polymorphisms [94, 95], only one examined glutathione reductase or glutathione-S-transferase activity [85]
Glycine is a potent therapeutic immunonutrient for various kinds of chronic liver conditions, including alcoholic liver disease [125]
Identifying biomarkers of pathogenic antibody responses, such as specific autoantibodies or immune complexes, could aid in diagnosing long COVID and stratifying patients based on disease severity
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