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Early intervention before total follicle loss produces best results
GPX5 is synthesized primarily by epididymal head epithelial cells and secreted into the epididymal cavity to compensate for a deficiency of antioxidant enzymes in immature sperm (Seligman et al., 2005)
The conversion of homocysteine to methionine reduces the potential for damage because the reaction results in the formation of the super-antioxidant glutathione
There are a few other groups that need to take more vitamin B12, usually as a supplement, to avoid deficiency
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