impaired glutathione synthesis b12 Glossitis and hyperpigmentation of hands due to Vitamin deficiency. ⬇️ B12 leads to ⬆️ melanin more frequently in people with darker skin. Skin hyperpigmentation was reversed with B12 replacement Vitamin B12 deficiency results in
Vitamin B12 deficiency results in severe oxidative stress, leading to memory retention impairment in Caenorhabditis elegans ScienceDirect The Glutathione System: A New Drug Target in Neuroimmune Disorders Molecular Neurobiology Springer Nature Link Nineteen year follow up of a patient with severe glutathione synthetase deficiency Journal of Human Genetics Frontiers Exploring neuropsychiatric manifestations of vitamin B complex deficiencies
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