Whats the best blood test for riboflavin? , Unfortunately, the gold standard is the erythrocyte glutathione reductase activity coefficient EGRAC, but no one offers this. Some labs offer Frontiers Impaired Antioxidant Defence Status Is Associated With Metabolic Inflammatory Risk Factors in Preterm Children With Extrauterine Growth Restriction: The BIORICA Cohort Study Glutathione reductase modulates endogenous oxidative stress and affects growth and virulence in Avibacterium paragallinarum Veterinary Research Springer Nature Link Measurement of superoxide dismutase, catalase and glutathione peroxidase in cultured cells and tissue Nature Protocols Genetic architecture of the murine red blood cell proteome reveals central role of hemoglobin beta cysteine 93 in maintaining redox balance: Cell Genomics