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PMID: 142 BartalenaLPiantanidaEGalloDIppolitoSTandaML

While the body produces glutathione, factors like aging, stress, poor diet, and environmental toxins can deplete its levels

10.1016/j.jff.2018.04.033 46 SemchyshynH.BagnyukovaT.StoreyK.LushchakV

27 Decreased expression of xCT leads to an increase in the rate of sulphur transfer from homocysteine to cysteine (through the trans-sulphuration branch of the methionine cycle), supporting the pivotal role of xCT in cyst(e)ine transport and cysteine provision

35 Alternatively, reporting of neurochemical levels relative to a reference neurochemical in the same voxel is a common approach, as measurements are technologically uncomplicated (only a single spectrum must be collected) and no correction for partial-volume effects is required