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Inflammation.

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Presentation on theme: "Inflammation."— Presentation transcript:

1 Inflammation

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7 Inflammatory cytokines
Plasma derived Bradykinin C3 C5a Factor XII (Hageman Factor). Membrane attack complex Plasmin Thrombin Cell derived Lysosome granules Histamine IFN-γ Leukotriene B4 Nitric oxide Prostaglandins TNF-α and IL-1

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9 Yacoubian S and Serhan CN (2007) New endogenous anti-inflammatory and proresolving lipid mediators: implications for rheumatic diseases Nat Clin Pract Rheumatol 3: 570–579 doi: /ncprheum0616

10 Albini and Sporn Nature Reviews Cancer 7, 139–147 (February 2007) | doi:10.1038/nrc2067

11 Wound healing Functional aspect Structural aspect Three phases
stop blood loss restore function prevent infection Structural aspect restoring both cells and their protein matrix Three phases Inflammatory phase proliferative/repair pahse remodeling/maturation phase

12 Inflammatory phase

13 Proliferative phase

14 Remodeling phase

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16 Chronic inflammation - Granuloma

17 Foreign body reaction begins as wound healing
accumulation of exudate infiltration of inflammatory cells formation of granulation tissue persistent presence of a biomedical implant inhibits full healing Histological findings formation of foreign body giant cells encapsulation of the foreign object chronic inflammation Nonspecific immune reaction

18 Foreign body reaction Giant cell Encapsulation
Products of macrophage fusion Hallmark of the foreign body reaction Secrete degradative agents: superoxides and free radicals Encapsulation Firm, avascular collagen shell deposited around a foreign body Isolating foreign body from the host tissues

19 Artificial Skin

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21 Immune privilege

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26 Take home message Four symptoms and signs of inflammation
Three stages of wound healing and foreign body reaction Immune privilege


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