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Related Concept Videos

Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
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...
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:
Asthma-IV: Diagnostic and Management01:30

Asthma-IV: Diagnostic and Management

The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
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 III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...

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Related Experiment Video

Updated: Jun 29, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 5, 2010

NIH conference. Asthma

R A Goldstein1, W E Paul, D D Metcalfe

  • 1National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.

Annals of Internal Medicine
|November 1, 1994
PubMed
Summary
This summary is machine-generated.

Asthma involves airway inflammation and obstruction. New treatments target inflammation by modulating key immune signals like Interleukin-4 and Interferon-gamma, aiming to reduce allergic responses and improve patient outcomes.

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Murine Model of Allergen Induced Asthma
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Murine Model of Allergen Induced Asthma

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

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Related Experiment Videos

Last Updated: Jun 29, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 5, 2010

Murine Model of Allergen Induced Asthma
08:05

Murine Model of Allergen Induced Asthma

Published on: May 14, 2012

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:

  • Immunology
  • Pulmonology

Background:

  • Asthma is a chronic respiratory disease marked by airway inflammation, reversible obstruction, and hyperresponsiveness.
  • Increasing asthma morbidity and mortality, especially in Black populations, highlights the need for effective interventions.
  • Inflammation is central to asthma's immunopathogenesis, driving the development of targeted therapies.

Framework:

  • Immune regulation of Immunoglobulin E (IgE) production is critical in allergic asthma.
  • Interleukin-4 (IL-4) is essential for IgE synthesis; its inhibition prevents IgE production.
  • Interferon-gamma (IFN-γ) counteracts IL-4 priming, suggesting a cytokine balance dictates allergic sensitization.

Implementation:

  • Mast cells and eosinophils infiltrate airways, releasing inflammatory mediators.
  • Modern asthma management emphasizes anti-inflammatory strategies, including corticosteroids and non-steroidal agents like cromolyn sodium.
  • Research is crucial for translating scientific understanding into effective therapeutic applications.

Implications:

  • Understanding the interplay of IL-4 and IFN-γ can lead to novel asthma treatments.
  • Targeting inflammatory pathways offers a promising therapeutic avenue for asthma control.
  • Community-based studies, like the National Cooperative Inner-City Asthma Study, are vital for addressing health disparities and improving asthma care in underserved populations.