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Related Concept Videos

Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin, heparin),...
Allergic Reactions02:06

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Hypersensitivities01:30

Hypersensitivities

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.
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Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
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Cross-reactivity00:42

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Asthma-I: Introduction01:29

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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...

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Related Experiment Video

Updated: Jun 12, 2026

Measuring Local Anaphylaxis in Mice
07:49

Measuring Local Anaphylaxis in Mice

Published on: October 14, 2014

Anaphylaxis: past, present and future.

M Ben-Shoshan1, A E Clarke

  • 1Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, McGill University Health Center, Montreal, QC, Canada. daliamoshebs@gmail.com

Allergy
|June 22, 2010
PubMed
Summary

Anaphylaxis, a serious allergic reaction, is increasingly prevalent and challenging to diagnose and manage. Further research is needed to improve treatment and prevention strategies for this life-threatening condition.

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Last Updated: Jun 12, 2026

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Area of Science:

  • Allergy and Immunology
  • Clinical Medicine

Background:

  • Anaphylaxis is a critical medical emergency with a reported increase in prevalence.
  • Susceptibility may be influenced by genetic and environmental factors.
  • Anaphylaxis poses significant diagnostic and therapeutic challenges due to varied symptoms and overlap with other conditions.

Purpose of the Study:

  • To review the diagnostic and therapeutic challenges of anaphylaxis.
  • To highlight the importance of prompt recognition and management by healthcare professionals.
  • To identify areas for future research in anaphylaxis treatment and prevention.

Main Methods:

  • Literature review of recent reports and clinical guidelines on anaphylaxis.
  • Analysis of diagnostic criteria and current management strategies.
  • Discussion of factors complicating treatment and prevention.

Main Results:

  • Anaphylaxis presents with diverse symptoms, often mimicking other diseases, complicating diagnosis.
  • Effective management requires prompt emergency treatment and long-term preventive strategies.
  • Treatment is often complicated by rapid onset, comorbidities, and the need for allergen avoidance.

Conclusions:

  • Healthcare professionals must be adept at recognizing, treating, and preventing anaphylaxis.
  • Addressing knowledge gaps is crucial for developing improved future therapies and preventive measures.
  • Further research is warranted to enhance the understanding and management of anaphylaxis.