407 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... Ex: Antibiotic allergies ... cephalosporin), Food allergies ... Immunological Target: Allergen ... Reactions #Types #Classification
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Soluble antigen - Allergen-specific ... When the specific allergen ... hay fever, food allergies ... , and drug allergies ... Hypersensitivity #Types #Classification
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
bind to harmless allergens ... mediated; exposure to allergen ... development of allergen-specific ... Reactions #Types #Classification
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mechanism of Action: Allergen-specific ... Hay fever, Food allergies ... , Drug allergies ... allergy #table #classification
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema - Classification ... or avoiding the allergen ... #Angioedema #Classification
Classification of Gastritis
Non-atrophic: Helicobacter pylori
Atrophic
 • Autoimmune: Autoimmunity
 • Multifocal atrophic: H. pylori, environmental insults
Special forms
Classification of ... , other allergies ... ) #Gastritis #Classification
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
bind to harmless allergens ... Sensitization" to Allergen ... Initial exposure to allergen ... after clearance of allergen ... Second Exposure to Allergen
Causes of Urticaria

Immunoglobulin E (IgE) mediated

 - Aeroallergens

 - Contact allergen

 - Food allergens

 - Insect
Aeroallergens - Contact allergen ... - Food allergens ... mediated - Contact allergen
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
mediated; exposure to allergen ... development of allergen-specific ... Initial exposure to allergen ... recognize antigen on allergen's
Asthma: immunopathogenesis. 
Allergens attach to, and are taken up by, dendritic cells that he the respiratory
Allergens attach ... interaction of the allergen ... degranulate when the allergens