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Related Concept Videos

Allergic Reactions02:06

Allergic Reactions

Overview
Allergic Drug Reactions01:27

Allergic Drug Reactions

Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing numerous...
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.
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...
Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...
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),...
Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...

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Related Experiment Video

Updated: May 7, 2026

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
05:31

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Published on: August 7, 2017

Household chemicals, immune function, and allergy: a commentary.

Ian Kimber1, Raymond Pieters

  • 1Faculty of Life Sciences, University of Manchester, Manchester, UK.

Journal of Immunotoxicology
|September 8, 2012
PubMed
Summary

The prevalence of atopic allergic diseases has increased significantly. This study examines how chemical exposure, including household cleaning products, may influence allergic sensitization.

Area of Science:

  • Allergy and immunology
  • Environmental health
  • Epidemiology

Background:

  • Atopic allergic diseases, including asthma, have seen a significant rise in prevalence across Western nations.
  • This increase is too rapid to be explained by genetic changes, shifting focus to environmental, dietary, and lifestyle factors.
  • While the hygiene hypothesis links microbial exposure to allergic sensitization, other factors like chemical exposure are also being investigated.

Purpose of the Study:

  • To re-evaluate the role of chemical exposure in influencing sensitization to common allergens.
  • To explore the potential impact of household cleaning products on allergic sensitization susceptibility.

Main Methods:

  • Review of existing evidence on chemical exposure and respiratory reactions.

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Last Updated: May 7, 2026

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
05:31

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Published on: August 7, 2017

Absorption of Nasal and Bronchial Fluids: Precision Sampling of the Human Respiratory Mucosa and Laboratory Processing of Samples
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  • Consideration of recent findings linking household cleaning products to allergic sensitization.
  • Analysis of the influence of chemical exposure on sensitization to common antigens.

    • Main Results:

    • Some evidence suggests certain chemicals can trigger or worsen respiratory issues in sensitized individuals or those with existing airway disease.
    • A recent proposal highlights specific household cleaning products as potential factors affecting allergic sensitization.
    • The study emphasizes the need to reconsider chemical exposure's role in allergy development.

    Conclusions:

    • Chemical exposure, particularly from household cleaning products, may play a role in the increasing prevalence of allergic diseases.
    • Further research is warranted to understand the mechanisms by which chemicals influence allergic sensitization.
    • Environmental factors, including chemical exposures, are critical areas for investigation in allergy prevention and management.