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Related Concept Videos

Allergic Reactions02:06

Allergic Reactions

Overview
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...
Asthma-I: Introduction01:29

Asthma-I: Introduction

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...
Global Climate Change01:50

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
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-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:

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Related Experiment Video

Updated: May 23, 2026

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
10:42

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10

Published on: November 19, 2016

Climate change, environment and allergy.

Heidrun Behrendt, Johannes Ring

    Chemical Immunology and Allergy
    |March 22, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Climate change exacerbates allergies by altering plant growth, prolonging pollination seasons, and increasing allergenic pollen. Environmental pollutants further enhance pollen

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    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
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    Published on: March 3, 2023

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    Last Updated: May 23, 2026

    Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
    10:42

    Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10

    Published on: November 19, 2016

    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
    08:47

    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber

    Published on: March 3, 2023

    Area of Science:

    • Environmental Science
    • Allergology
    • Meteorology

    Background:

    • Climate change and global warming are scientifically established phenomena with significant impacts on human health.
    • Allergies are emerging as a major health concern linked to climate change, alongside cardiovascular and infectious diseases.

    Purpose of the Study:

    • To investigate the multifaceted effects of climate change on allergy prevalence and severity.
    • To explore the role of altered plant growth, pollination patterns, and environmental pollutants in exacerbating allergic responses.

    Main Methods:

    • Analysis of physicometeorological data related to temperature and CO(2) concentrations.
    • Review of studies on plant physiology, pollination ecology, and atmospheric chemistry.
    • Examination of the interaction between environmental pollutants and airborne allergens.

    Main Results:

    • Increased temperatures and CO(2) concentrations promote plant growth, leading to extended pollination periods and the proliferation of allergenic species like ragweed.
    • Environmental pollutants can modify pollen structure, enhancing their allergenic potential and contributing to allergen-containing aerosols.
    • Pollen itself acts as a carrier for highly active lipid mediators, promoting inflammation and immune responses that initiate allergic reactions.

    Conclusions:

    • Climate change is a significant driver of increasing allergy prevalence and severity.
    • Future climate scenarios predict further alterations in pollen production, potentially leading to novel and more potent allergens, posing greater risks to human health.