Articles written in Journal of Biosciences
Volume 32 Issue 4 June 2007 pp 723-735 Articles
To investigate whether selenium (Sel) treatment would impact on the onset of diabetes, we examined serum biochemical components including glucose and insulin, endoplasmic reticulum (ER) stress and insulin signalling proteins, hepatic C/EBP-homologous protein (CHOP) expression and DNA fragmentation in diabetic and non-diabetic conditions of non-obese diabetic (NOD) mice. We conclude that
Sel treatment induced insulin-like effects in lowering serum glucose level in Sel-treated NOD mice,
Sel-treated mice had significantly decreased serum biochemical components associated with liver damage and lipid metabolism,
Sel treatment led to the activation of the ER stress signal through the phosphorylation of JNK and eIF2 protein and insulin signal mechanisms through the phosphorylation of Akt and PI3 kinase, and
Sel-treated mice were significantly relieved apoptosis of liver tissues indicated by DNA fragmentation assay in the diabetic NOD group.
These results suggest that Sel compounds not only serve as insulin-like molecules for the downregulation of glucose level and the incidence of liver damage, but may also have the potential for the development of new drugs for the relief of diabetes by activating the ER stress and insulin signalling pathways.
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