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It is a small, naturally occurring peptide that has been extensively studied for its role in cellular repair, antioxidant activity, and collagen synthesis
In tuberculosis, the cytolytic activity of NK cells is critically impaired in patients with low glutathione levels
Researchers should approach dosing with appropriate caution and ideally work with knowledgeable healthcare providers
Moreover, studying the uptake of labelled vitamin B12 into tumor tissues versus normal tissues, and relating this to plasma concentrations of vitamin B12, may show whether plasma concentrations of the vitamins are reflecting tissue content or demands
doi: 10.1113/jphysiol.1991.sp018507
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