22 results
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
it is entirely T-Cell ... T-Cell response ... Allergic reaction ... exposure, because T-Cell ... #Immunology #pathophysiology
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
and induce mast cell ... plasma cells that ... complex -> Allergen-antibody ... complexes bind ... #Immunology #pathophysiology
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
with cytotoxic T ... Antigen-antibody complexes ... and cytotoxic T ... Hypersensitivity #Types #Classification ... #Pathophysiology
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Antigen-antibody complex ... Antigen-antibody complexes ... T-cells recruit ... reactions #types #allergy ... #table #classification
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
antigen-surface complex ... it is entirely T-Cell ... T-Cell response ... exposure, because T-Cell ... #Types #Classification
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... Target: Modified cell ... Antigen-Ab immune complexes ... Immunological Mediator: Th Cells ... #Types #Classification
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
Type Ill - Immune Complex-Mediated ... Sickness) Type IV T-Cell-Mediated ... reactions #Types #Classification ... #Allergy #Diagnosis
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
antigen-surface complex ... antigen-surface complex ... or the entire complex ... HypersensitivityReaction #Allergy ... #Immunology #pathophysiology
Cellular and humoral immune responses of the adaptive immune system. Activated T cells accomplish cellular immune
Activated T cells ... to the T-cell receptor ... histocompatibility complex ... depending on the T-cell ... ImmuneResponses #immunology #pathophysiology
Allergic Rhinitis: Pathogenesis and clinical findings

1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
Allergic Rhinitis ... Allergy Sensitization ... peptides to Helper T ... T cells release ... Rhinitis #Rhinorrhea #pathophysiology