selenium

L-SelenoMethionine (L-(+)-Selenomethionine) is a naturally occurring amino acid. It promotes cell cycle progression and elevates the expression of the antioxidant enzymes thioredoxin reductase, glutathione reductase.

DL-Selenomethionine (Seleno-DL-methionine) is a selenium (Se) analogue of methionine in which sulfur is replaced with the trace element selenium. Selenomethionine (SeMet) can incorporate into proteins in place of methionine with no effects on protein structure and function, providing a mechanism for reversible Se storage in organs and tissues.

Ptaquiloside shows genotoxicity, it also has carcinogenic effects. Ptaquiloside has immunosuppressive effects, it reduces NK cell activities by enhancing metallothionein expression, which is prevented by selenium.

SeGalNac, a selenium metabolite present in human urine, can be utilized in the study of selenoglucose metabolism [1] [2].