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Separate high-dose oral b12 (1000 to 2000 mcg daily) or regular b12 injections (1000 mcg weekly or monthly) offer more reliable repletion
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They can be reheated later and are safe for up to 4 months in the freezer
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Mode of action of 4-Vinylpyridine 4-Vinylpyridine acts as a derivatizing agent for GSH in glutathione assay as it alkylates GSH and thus masks GSH leaving only GSSG in sample which is quantified with DTNB (Ellmans reagent) after being reduced by glutathione reductase to GSH
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