oxidized glutathione melanin High levels simultaneously neutralize reactive oxygen an antioxidant containing cysteine The pathway of melanin synthesis
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doi: 10.3390/BIOLOGY11071083 13

Giza JI, Kim J, Meyer HC, Anastasia A, Dincheva I, Zheng CI, et al

Robert C, Thomas L, Bondarenko I, O'Day S, Weber J, Garbe C, et al

The evidence suggests that an interaction between high folate and low vitamin B-12 does in fact exist, that the biochemical response to this interaction is paradoxical, and that it represents a novel (acquired) vitamin B-12 deficiency state with a specific etiology
