Journal
TOXICOLOGY LETTERS
Volume 145, Issue 2, Pages 121-132Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/S0378-4274(03)00237-6
Keywords
chronic cadmium exposure; mouse peritoneal macrophage; oxidative stress; inducible nitric oxide synthase; cyclooxygenase-2
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Redox changes and the secretion of inflammatory mediators were investigated in resident peritoneal macrophages of mice chronically exposed to cadmium (Cd, 15 ppm for 2 months) through drinking water. Our results showed that in vivo Cd exposure altered the redox balance in mouse peritoneal macrophages, leading to excessive production of reactive oxygen species (ROS) that overwhelmed the antioxidant defenses. It also led to increased lipid peroxidation and arachidonic acid (AA) release, higher nitric oxide and prostaglandin E-2 (PGE(2)) production, and induction of inducible nitric oxide synthase and cyclooxygenase-2 compared with control macrophages. Oxidative stress and inflammation Could be important processes operating in the modulation of mouse macrophage physiology induced by chronic Cd exposure. (C) 2003 Elsevier Ireland Ltd. All rights reserved.
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