1205 results
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Pathogenesis and clinical ... causes development ... Macrophage engulfs antigen ... -> Antigen presentation ... cells recognize antigen
Type III Hypersensitivity: Pathogenesis and clinical findings
Definition: Small antigen-antibody complexes (produced from normal immune response to
Pathogenesis and clinical ... Definition: Small antigen-antibody ... self-antigens are the cause ... antigens are the cause ... HypersensitivityReaction #Allergy
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... Immunological Target: Antigen-Ab ... Hypersensitivity #Allergy ... #Allergic #Reactions
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
Pathogenesis and clinical ... leading to an allergic ... Sensitization" to Allergen ... Initial exposure to allergen ... after clearance of allergen
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mediators: lgE - Antigen ... Form: Soluble antigen ... Mechanism of Action: Allergen-specific ... lgE causes mast-cell ... reactions #types #allergy
Allergic Rhinitis: Pathogenesis and clinical findings

1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
Allergic Rhinitis ... Pathogenesis and clinical ... Allergy Sensitization ... -> Antigen Exposure ... Tissue edema #Allergic
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
lgE - Soluble antigen ... - Allergen-specific ... When the specific allergen ... IgM - Cell-bound antigen ... Pathophysiology #Allergy
Angioedema: Acute swelling of the lips resulting from an allergic response to medication

Charlie Goldberg, M.D. -
resulting from an allergic ... UCSD Catalog of Clinical ... Images #Clinical ... #Photo #Allergy
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
cell surfaces causes ... reaction against the antigen ... cell surface, and antigen-surface ... small antibody-antigen ... causes development
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema: • Acute allergic ... exposure • Non-allergic ... cell-mediated in > 90% of cases ... or avoiding the allergen ... Treatment #management #allergy