cofactor for glutathione peroxidase trace mineral Mechanism of (GPx) redox pathway. Selenol (-SeH) Glutathione peroxidase - Wikipedia
Description
The liver removes a significant amount of resorbed cysteine from the portal vein [20]

Lessons from basic research in selenium and cancer prevention

Redox regulation of c-Jun DNA binding by reversible S-glutathiolation

Antioxidants accelerate lung cancer progression in mice
Standard prenatal vitamins containing 2.5-10 micrograms may be insufficient for those with dietary deficiency, so dedicated B12 supplementation is recommended

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