Epistemis

Allergology: Introduction and Physiopathological Bases of Allergic Diseases

Allergology and Immunology · Clinical Specialties

How it begins

A scientific compendium and detailed medical reference, aimed at specialists in allergology, immunology and related medical disciplines. It rigorously addresses cellular ontogeny, molecular signaling cascades, the genetics of atopy, hypersensitivity mechanisms, epithelial barrier theory, and advanced biological therapeutics.

What it covers

  1. Ontogeny of the Allergic Immune System and Epithelial Barriers
  2. Presentation of Antigens, Dendritic Cells and Immune Synapses
  3. T Helper Lymphocytes and Their Phenotypic Plasticity
  4. B Lymphocytes, Isotype Change and Regulation of IgE Synthesis
  5. The High Affinity Receptor (FcεRI) and Low Affinity Receptor (FcεRII/CD23)
  6. · High Affinity Receptor for IgE (FcεRI)
  7. · Low Affinity Receptor for IgE (FcεRII / CD23)
  8. Mast Cells and Basophils: Ontogeny, Receptors and Non-IgE Activation
  9. · Non-IgE Activation Mediated by the MRGPRX2 Receptor
  10. Eosinophils: Cell Biology and Cationic Granulation Proteins
  11. · Cationic Proteins of Secondary Granules
  12. Histamine and its Receptors (H1, H2, H3, H4)
  13. Lipid Mediators of De Novo Synthesis
  14. · The 5-Lipoxygenase Pathway: Cystenyl Leukotrienes (CysLTs)
  15. · The Cycloxygenase Pathway: Prostaglandin D2 (PGD2)
  16. Chemokines, Key Cytokines and Epithelial Alarmins
  17. · The Type 2 Cytokine Trio
  18. · Epithelial Alarmins and Type 2 Innate Lymphoid Cells (ILC2)
  19. Gell and Coombs Classification Revisited
  20. Type I Hypersensitivity (Immediate)
  21. · 1. Sensitization Phase (Asymptomatic)
  22. · 2. Early Effector Phase (Minutes)
  23. · 3. Late Effector Phase (4 to 24 Hours)
  24. Type II and Type III Hypersensitivity in the Context of Allergology
  25. · Type II Mechanism (Blood Cell Haptenization)
  26. · Type III Mechanism (Serum Sickness and Vasculitis)
  27. Type IV Hypersensitivity: Subtypes and Complex Skin Reactions
  28. · Pathophysiology of Severe Cutaneous Adverse Drug Reactions (SCARs)
  29. Physicochemistry of Allergens and Cross Reactivity
  30. Respiratory Allergens (Pneumoallergens)
  31. · 1. House Dust Mites (*Dermatophagoides pteronyssinus* and *D. farinae*)
  32. · 2. Pollens (Grasses, Trees and Weeds)
  33. · 3. Domestic Animal Epithelia
  34. Food Allergens (Trophoallergens)
  35. · Oral Allergy Syndrome (OSS)
  36. Occupational Allergens, Hymenoptera Venoms and Chemical Haptens
  37. · Hymenoptera Poisons (Bees and Wasps)
  38. · Chemical Haptens and Contact Immunity
  39. Atopy Genomics: Susceptibility Loci
  40. Epigenetics in Allergy: DNA Methylation and Histones
  41. The Hygiene Hypothesis Revisited and the Microbiome Theory
  42. Bronchial Asthma: Phenotypes, Endotypes and Airway Remodeling
  43. · T2-High Endotype (Eosinophilic / Type 2)
  44. · T2-Low Endotype (Neutrophilic or Paucigranulocytic)
  45. Allergic Rhinitis and Chronic Rhinosinusitis with Nasal Polyposis (CRSwNP)
  46. Atopic Dermatitis: Filaggrin Dysfunction, Barrier and Neurogenic Inflammation
  47. · Genetic Barrier Dysfunction: The Filaggrin Gene (*FLG*)
  48. · Colonization and Pathogenic Role of *Staphylococcus aureus*
  49. · The Pruritus and Neurogenic Inflammation Pathway
  50. Food Allergies and Immuno-Gastroenterology: From Anaphylaxis to Eosinophilic Esophagitis
  51. · Systemic Mediated IgE Reactions
  52. · Non-IgE Mediated Reactions: Food Protein Induced Enterocolitis Syndrome (FPIES)
  53. · Eosinophilic Esophagitis (EoE)
  54. Systemic Anaphylaxis: Pathophysiology of Anaphylactic Shock
  55. · Hepatophysiology of Hemodynamic Changes in Shock
  56. Molecular Component Diagnosis (CRD) and In Vitro Functional Tests
  57. · Clinical Advantages of Molecular Diagnosis
  58. · The Basophil Activation Test (BAT)
  59. Allergen Immunotherapy (ITA): Immunological Tolerance Mechanisms
  60. Immunobiologicals and Precision Therapies in Complex Allergic Pathologies
  61. · Omalizumab (Anti-IgE)
  62. · Dupilumab (Anti-IL4Rα)
  63. · Antibodies Directed against the Eosinophil Axis
  64. · Tezepelumab (Anti-TSLP)
  65. Intervention Algorithm in Severe Asthma and Type 2 Pathologies

The complete study guide is in the app

This page summarizes the outline. The full interactive study guide —with high-yield diagrams, clinical tables, and board review cases— can be read inside Epistemis, completely offline and ad-free.

Subject
Allergology and Immunology
Category
Clinical Specialties
Type
Study Guide
Sections
65
Reviewed
2026-09-03
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