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Related Concept Videos

Hypersensitivities01:30

Hypersensitivities

1.1K
Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
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Transcytosis of IgG01:15

Transcytosis of IgG

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Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
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Related Experiment Video

Updated: Sep 14, 2025

Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis
10:27

Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis

Published on: December 15, 2011

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Hyper-IgE syndrome: A rare case report.

Lee Smith1, Ahmed Rafei2, Susanna Caminada3

  • 1Centre for Health, Performance and Wellbeing, Anglia Ruskin University, Cambridge, United Kingdom.

The Journal of Allergy and Clinical Immunology. Global
|July 23, 2025
PubMed
Summary
This summary is machine-generated.

Hyper-IgE syndrome (HIES) is a rare primary immunodeficiency. This case highlights diagnostic challenges and the need for timely identification of HIES for effective symptom management.

Keywords:
HIESHyper-IgE syndromeIgEJob syndrome

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Last Updated: Sep 14, 2025

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Area of Science:

  • Immunology
  • Genetics

Background:

  • Hyper-IgE syndrome (HIES) is a rare primary immunodeficiency.
  • Characterized by atopic dermatitis, recurrent infections, and high IgE levels.

Observation:

  • Diagnosis of HIES is challenging due to its rarity and nonspecific presentation.
  • Can be misdiagnosed with conditions like cystic fibrosis or tuberculosis.

Findings:

  • A 30-year-old female patient with a history of long-term misdiagnosis of HIES is presented.
  • This case underscores the diagnostic complexities associated with HIES.

Implications:

  • Highlights the need for increased awareness and improved diagnostic strategies for HIES.
  • Emphasizes the importance of accurate diagnosis for appropriate symptom management and complication avoidance.