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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...)
 
3번째 줄: 3번째 줄:
  
 
==분류==
 
==분류==
 +
===Type 1===
 
*Type I Immediate type hypersensitivity( IgE depedent or anaphylactic)
 
*Type I Immediate type hypersensitivity( IgE depedent or anaphylactic)
**ex) Allergic rhnitis, asthma, systemic anaphylaxis
+
**ex) [[Allergic rhnitis]], [[asthma]], systemic [[anaphylaxis]], Drug allergies([[penicillin]], insulin, cephalosporin)
 +
 
 +
===Type 2===
 
*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
+
**ex) Chronic [[urticaria]]
 +
 
 +
===Type 3===
 
*Type III Antigen-antibody complex(immune complex) hypersensitivity reaction
 
*Type III Antigen-antibody complex(immune complex) hypersensitivity reaction
**ex) Serum sickness, Arthus reaction
+
**ex) [[Serum sickness]]
 +
 
 +
===Type 4===
 
*Type IVa1 Classical delayed type
 
*Type IVa1 Classical delayed type
**ex) Contact dermatitis, tuberculin reaction
+
**ex) [[Contact dermatitis]], tuberculin reaction
 
*Type IVa2 Cell mediated eosinophlic(or Chronic allergic inflammation
 
*Type IVa2 Cell mediated eosinophlic(or Chronic allergic inflammation
 
**ex) Chronic asthma, chronic allergic rhinitis
 
**ex) Chronic asthma, chronic allergic rhinitis

2015년 11월 12일 (목) 11:35 판

과민반응(Hypersensitivity reaction)

분류

Type 1

Type 2

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

Type 3

  • Type III Antigen-antibody complex(immune complex) hypersensitivity reaction

Type 4

  • Type IVa1 Classical delayed type
  • Type IVa2 Cell mediated eosinophlic(or Chronic allergic inflammation
    • ex) Chronic asthma, chronic allergic rhinitis
  • Type IVb Tissue injury by cytotoxic T cell
    • ex) contact dermatitis

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

  • MBP(Major basic protein)
  • ECP(Eosinophil cationic protein)
  • EDN(Eosinophil-derived neurotoxin)