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The evidence for such a decline is strongest in the brain where glutathione loss is implicated in both Parkinsons disease and in neuronal injury following stroke. In fact, aging can result in a deficiency of glutathione, which can then lead to a number of other issues

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Journal of Experimental and Clinical Cancer Research , 37 (1), 274 Zhou, W

Accordingly, the expression changes of L2HGDH by sg L2HGDH , L2HG treatment, or L2HGDH OPT led to decreased or increased DNA hydroxymethylation in the CBS promoter CpG island (Fig