ABBREVIATION   Cd Cadmium CdCl2 Cadmium chloride CdS Cadmium sulphide Pb Lead Hg Mercury HgCl2 Mercury chloride MeHg Methyl Mercury MeHgCl Methyl Mercury Chloride V Vanadium Pt Platinum Pd Palladium ROS Reactive Oxygen Species O2− Superoxide anion H2O2 Hydrogen Peroxide HOCl Hypochlorous Acid OH’ Hydroxyl Radical NO Nitric Oxide iNOS Inducible Nitric Oxide Synthase MMP Matrix Metalloproteinases LTB4, LTC4 and LTD4 Leukotriene B4, Leukotriene C4 & D4 IL (e.g IL-8) Interleukin (e.g. interleukin-8) TNF Tumor necrosis factor MCP-1 Monocyte chemotactic protein-1 MIP-1a Macrophage inflammatory protein-1 alpha NFkB Nuclear factor kappa B AP-1 Activation protein-1 JNK c-Jun N-terminal kinase MEK-1 MAP (Mitogen-Activated Protein) Kinase/ERK ( P38 MAPK p38 mitogen-activated protein kinases ERK-1 Extracellular Signal-Regulated Kinases 1 PI-3K Phosphatidylinositol-3-Kinase FMLP N-formyl-methionyl-leucine-phenylalanine PMA Phorbol-12-myristate-13-acetate PKC Protein kinase C PAF Platelet Activating Factor PGE2 Prostaglandin E 2

Table 1: List of abbreviations.