... Ilyina A., Hern ndez V zquez M. G., Valdez Lara E. L., Chorne Navia R., Ch vez Ch vez R., Rodr guez Mart nez J. Prostaglandin H synthase activity in the presence of calcium ions and mouse skin in vitro . ... Increase in calcium concentration resulted in enzyme inhibition and at the same time decreased the constant of enzyme inactivation during the reaction. ... Moscow University Chemistry Bulletin . 2003, Vol. ... Copyright (C) Chemistry Dept., Moscow State University, 2002 . ...