Effect of cationic groups in poly(arylene ether sulfone) membranes on reverse electrodialysis performance.

In this work, three functional groups were introduced in poly(arylene ether sulfone) membranes to investigate the effects of cationic functional groups in the membranes on reverse electrodialysis performance. Our results showed that controlling the swelling behaviour of the membranes was an important factor for increasing the permselectivity while maintaining their high conductivity.

7-ketocholesterol induces endoplasmic reticulum stress in HT-29 cells.

7-Ketocholesterol (7-Kchol, oxidized cholesterol) is an important mediator of cell death in atherosclerosis mediated by up-regulated Nox 4 gene expression. In the current study using the human colon cancer HT-29 cell line, we have demonstrated that 7-Kchol promotes endoplasmic reticulum (ER) stress via gene up-regulation of ER chaperone and membrane kinases.