Q: What is the source of histamine and serotonin? A: Mast cells and platelets. Q: What is the source of bradykinin? A: Plasma substrate. Q: What is the source of C3a? A: Plasma proteins via liver Q: What is the source of C5a? A: Macrophages Q: What is the source of prostaglandins? A: Mast cells Membrane phospholipids Q: What is the source of leukotriene B4? A: Leukocytes. Q: What is the source of leukotrienes C4, D4 and E4? A: Leukocytes Mast cells Q: What is the source of oxygen metabolites? A: Leukocytes. Q: What is the source of PAF? A: Leukocytes Mast Cells Q: What is the source of IL-1 and TNF? A: Macrophages and other Q: What is the source of IL-8? A: Macrophages Endothelium Q: What is the source of nitric oxide? A: Macrophages Endothelium Q: What is the effect of histamine and serotonin? A: Increased vascular permeability Q: What is the effect of bradykinin? A: Increased vascular permeability Q: What is the effect of C3a? A: Increased vascular permeability Opsonic fragment (C3b) Q: What is the effect of C5a? A: Increased vascular permeability Chemotaxis Leukocyte adhesion and activation Q: What is the effect of prostaglandins? A: Potentiates other mediators Vasodilation Pain Fever Q: What is the effect of leukotriene B4? A: Chemotaxis Leukocyte adhesion and activation Q: What is the effect of most leukotrienes (besides leukotriene B4)? A: Increased vascular permeability Vasoconstriction Bronchoconstriction Q: What is the effect of oxygen metabolites? A: Increased vascular permeability Possible chemotaxis Endothelial/tissue dammage Q: What is the effect of PAF? A: Increased vascular permeability Chemotaxis Bronchoconstriction Leukocyte priming Q: What is the effect of IL-1 and TNF? A: Chemotaxis Acute phase reactions Endothelial activation Q: What is the effect of IL-8? A: Chemotaxis Leukocyte activation Q: What is the effect of nitric oxide? A: Vasodilation Cytotoxicity Endothelium Q: What inflammatory mediators cause vasodilation? A: Prostaglandins Nitric oxide Q: What inflammatory mediators cause increased vascular permeability? A: Vasoactive amines C3a, C5a (indirectly, by liberating amines) Bradykinin Leukotrienes C4, D4, E4 PAF Q: What inflammatory mediators cause chemotaxis and leukocyte activation? A: C5a Leukotriene B4 Bacterial products Cytokines (IL-8) Q: What inflammatory mediators cause fever? A: IL-1 IL-6 TNF Prostaglandins Q: What inflammatory mediators cause pain? A: Prostaglandins Bradykinin Q: What inflammatory mediators cause tissue dammage? A: Neutrophil and macrophage lysosomal enzymes Oxygen metabolites Nitric oxide Q: What are the most likely mediators in vasodilation? A: * Prostaglandins * Nitric oxide Q: What are the most likely mediators in increased vascular permeability? A: * Vasoactive amines * C3a and C5a (through liberating amines) * Bradykini * Leukotrienes c4, D4 and E4 * PAF * Substance P Q: What are the most likely mediators in chemotaxis and leukocyte activation? A: * C5a * Leukotriene B4 * Chemokines * Bacterial products Q: What are the most likely mediators in fever? A: * IL-1 * IL-6 * TNF * Prostaglandins Q: What are the most likely mediators in pain? A: * Prostanglandins * Bradykinin Q: What are the most likely mediators in tissue damage? A: * Neutrophil and macrophage lysosomal enzymes * Oxygen metabolites * Nitric oxide