Selenium metabolism and glutathione peroxidase activity in cultured human lymphoblasts. Effects of transsulfuration defects and pyridoxal phosphate.

Abstract excerpt

The metabolism of selenite, selenocysteine (SeCys), and selenomethionine (SeMet) was studied in three human lymphoblast cell lines with defects in the transsulfuration pathway and in control cells without this defect. There were very little differences in the induction of glutathione peroxidase (GPX) activity by selenite and SeCys among these cells. However, markedly higher levels of SeMet were required to induce...

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