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The suggestion is that reduced GR activity and therefore less 'reduced glutathione' may be implicated in Irritable Bowel Syndrome - possibly because it has less defenses against free radicals, the cause of oxidative stress

Nucleotide sequence and expression of the selenocysteine containing polypeptide of formate dehydrogenase (formate-hydrogen-lyase-linked) from Escherichia coli

Protein-tyrosine nitration is a post-translational chemical modification process for the highly selective non-enzymatic introduction of a nitro group (-NO 2 ) into the side chain by peroxynitrite (ONOO - ), a short-lived biomolecule generated by the rapid reaction of NO with superoxide radicals in vivo 40,41

Its also a powerful nutrient for tumors