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염증 Inflammation Chapter 4.

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Presentation on theme: "염증 Inflammation Chapter 4."— Presentation transcript:

1 염증 Inflammation Chapter 4

2 􀓋감염, 전염(infection) : 주로 개체에 병원체가 침입하는 것으로 접촉
􀓋염증(inflammation) : 손상에 대한 신체조직의 방어적인 반응 􀓋삼출(exudation) : 혈관투과성의 항진으로 혈관 내의 액성 성분과 단백질 성분들이 간질조직으로 빠져 나가는 현상 􀓋주화성(chemotaxis) : 유인물질을 향하여 세포들이 일정한 방향으로 만 이동하는 현상 􀓋식작용(phagocytosis) : 탐식세포가 세균 또는 다른 이물을 원형질 내 로 섭취하는 현상 􀓋농양(abscess) : 조직의 괴사에 의한 농의 국소적 집합 􀓋재생(regeneration) : 손상된 조직이 동일한 실질세포로 대치되는 현상

3 swelling heat redness 􀓋로마의 셀서스(cornelius Celsus)
􀓋염증의 기본징후( 4 Cardinal signs) redness swelling heat pain 􀓋염증의 5대 징후 (갈레누스) loss of function

4 Acute inflammation : Classic sequences of events of inflammatory reaction Hemodynamic change transient vasoconstruction cause : epinephrine, neurogenic vasodilation cause : histamine reaction decreased blood flow cause : vasodilation

5 cause : increased blood volume exudation
Permeability change vascular permeability↑ cause : increased blood volume exudation The exudative component involves the movement of plasma fluid, containing important proteins such as fibrin and immunoglobulins (antibodies), into inflamed tissue leukocytic margination cause : stasis of blood flow

6 Leukocyte event pavement emigration chemotaxis phagocytosis
margination pavement emigration chemotaxis phagocytosis

7 Chemical mediators in acute inflammation
vasoactive amine neuropeptides plasma protease arachidonic acid metabolite platelet activating factor cytokine oxygen –derived free radical lysosomal constituents

8 (mononuclear phagocytic system, MPS)
단핵성 탐식세포계 (mononuclear phagocytic system, MPS) 과거의 RES(reticuloendothelial system, 망상내피계) RES – spleen liver bone marrow lymphoid tissue 염증에 의해 mononuclear cell 증가하여 bacteria를 파괴함과 동시에 손상된 조직 파편과 old neutrophil 처리 spleen에서 old RBC 처리

9 Repair - apoptosis stable cell permanent cell Replacement Regeneration
labile cell - apoptosis stable cell permanent cell Replacement

10 Primary union Secondary union Wound Healing

11


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