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Data availability All data supporting the findings described are available in this paper and in the Supplementary Information

Excessive extracellular glutamate concentration blocks the uptake of CySS which is essential for biosynthesis of GSH

We examined relationships between PNPLA3 rs738409 and longitudinal changes in selected liver histology outcomes

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NH 4 + released, -ketoglutarate formed NAD Glutamate Dehydrogenase + or NADP + required reversible one of only three reactions in humans that can fix NH by the reverse reductive amination of -ketoglutarate 4 + , i.e., covalently link it to carbon in mitochondria of most cells Some amino acids for which transaminases exist release their nitrogen more frequently as NH 4 + Deamination by dehydration serine (enzyme = serine dehydratase

Persons over 45 make up 40 percent of the U.S