There's Life After Radiation for Brain Cells. Johns Hopkins researchers suggest neural stem cells may regenerate after anti-cancer treatment. Release Date: August 12, 2013. Scientists have long believed that healthy brain cells, once damaged by radiation designed to kill brain tumors, cannot regenerate.
The key player in acid secretion is a H+/K+ ATPase or proton pump located in the cannalicular membrane. 1  This ATPase is magnesium-dependent, and not inhibitable by ouabain. The current model for explaining acid secretion is as follows: 2  Hydrogen ions are generated within the parietal cell from dissociation of water.
Proton pumps are protein complexes that. break down water into hydrogen and oxygen. synthesize water from hydrogen and oxygen. pump protons and electrons through the cell membrane. pump protons from the exterior of the cell to the interior.pump protons from the interior of the cell to the exterior. 2.roton pumps are protein complexes that. break down water into hydrogen and oxygen. synthesize water from hydrogen and oxygen. pump protons and electrons through the cell membrane. pump protons from the exterior of the cell to the interior.