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"Hypersensitivity reaction"의 두 판 사이의 차이

(새 문서: 분류:Disease 분류:Allergy 과민반응(Hypersensitivity reaction) ==분류== *Type I Immediate type hypersensitivity( IgE depedent or anaphylactic) **ex) Allergic rhnitis...)
 
 
(같은 사용자의 중간 판 9개는 보이지 않습니다)
1번째 줄: 1번째 줄:
[[분류:Disease]] [[분류:Allergy]]
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[[분류:Disease]] [[분류:Allergy]] [[분류:Immunology]]
과민반응(Hypersensitivity reaction)
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[[과민 반응]](Hypersensitivity reaction, Hypersensitivity types)은 면역 체계에 의한 원치 않는 반응으로 기전에 따라 크게 4가지로 분류한다. .
  
 
==분류==
 
==분류==
 +
===[[Type 1 hypersensitivity]]===
 
*Type I Immediate type hypersensitivity( IgE depedent or anaphylactic)
 
*Type I Immediate type hypersensitivity( IgE depedent or anaphylactic)
**ex) Allergic rhnitis, asthma, systemic anaphylaxis
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**ex) [[Allergic rhnitis]], [[asthma]], systemic [[anaphylaxis]], Drug allergies([[penicillin]], [[insulin]], [[cephalosporin]])
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===[[Type 2 hypersensitivity]]===
 
*Type IIa Cytotoxic or cytolytic reactions
 
*Type IIa Cytotoxic or cytolytic reactions
 
**ex) Drug allergies(penicillin)
 
**ex) Drug allergies(penicillin)
 
*Type IIb Cell stimulating reactions involving altered cell function
 
*Type IIb Cell stimulating reactions involving altered cell function
**ex) Chronic urticaria
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**ex) Chronic [[urticaria]]
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===[[Type 3 hypersensitivity]]===
 
*Type III Antigen-antibody complex(immune complex) hypersensitivity reaction
 
*Type III Antigen-antibody complex(immune complex) hypersensitivity reaction
**ex) Serum sickness, Arthus reaction
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**ex) [[Serum sickness]], [[PSGN]], [[SLE]], [[Arthus reaction]]
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===[[Type 4 hypersensitivity]]===
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Delayed type hypersensitivity로 sensitized T lymphocyte가 Ag을 만나 cytokine 분비 및 macrophage 활성화
 
*Type IVa1 Classical delayed type
 
*Type IVa1 Classical delayed type
**ex) Contact dermatitis, tuberculin reaction
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**ex) [[Contact dermatitis]], [[tuberculin reaction]]([[tuberculin skin test]])
 
*Type IVa2 Cell mediated eosinophlic(or Chronic allergic inflammation
 
*Type IVa2 Cell mediated eosinophlic(or Chronic allergic inflammation
**ex) Chronic asthma, chronic allergic rhinitis
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**ex) Chronic [[asthma]], chronic [[allergic rhinitis]]
 
*Type IVb Tissue injury by cytotoxic T cell
 
*Type IVb Tissue injury by cytotoxic T cell
**ex) contact dermatitis
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**ex) [[contact dermatitis]]
 
   
 
   
 
==IgE Ab crosslink에 의한 mast cell 활성화 기전==
 
==IgE Ab crosslink에 의한 mast cell 활성화 기전==
26번째 줄: 34번째 줄:
 
   
 
   
 
==호산구의 Toxic protein==
 
==호산구의 Toxic protein==
*MBP(Major basic protein)
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*[[MBP]]([[Major basic protein]])
*ECP(Eosinophil cationic protein)
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*[[ECP]]([[Eosinophil cationic protein]])
 
*EDN(Eosinophil-derived neurotoxin)
 
*EDN(Eosinophil-derived neurotoxin)

2016년 7월 2일 (토) 01:39 기준 최신판

과민 반응(Hypersensitivity reaction, Hypersensitivity types)은 면역 체계에 의한 원치 않는 반응으로 기전에 따라 크게 4가지로 분류한다. .

분류

Type 1 hypersensitivity

Type 2 hypersensitivity

  • Type IIa Cytotoxic or cytolytic reactions
    • ex) Drug allergies(penicillin)
  • Type IIb Cell stimulating reactions involving altered cell function

Type 3 hypersensitivity

Type 4 hypersensitivity

Delayed type hypersensitivity로 sensitized T lymphocyte가 Ag을 만나 cytokine 분비 및 macrophage 활성화

IgE Ab crosslink에 의한 mast cell 활성화 기전

  1. Allergen cross linkage of cell-bound IgE
  2. Antibody cross-linkage of IgE
  3. chemical cross linkage of IgE
  4. cross-linkage of IgE receptors by anti-receptor antibody
  5. enchanced Ca2+ influx by ionophore that increases membrane permeability to Ca2+

호산구의 Toxic protein