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Related Concept Videos

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,...
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: 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-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-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-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:
Classification of Asthma

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Related Experiment Video

Updated: May 11, 2026

Murine Model of Allergen Induced Asthma
08:05

Murine Model of Allergen Induced Asthma

Published on: May 14, 2012

Asthma phenotypes today.

M Cottini1, R Asero

  • 1Specialista in Allergologia e Immunologia Clinica, Specialista Malattie Apparato Respiratorio, Bergamo, Italia.

European Annals of Allergy and Clinical Immunology
|May 18, 2013
PubMed
Summary
This summary is machine-generated.

Asthma is now viewed as a complex syndrome with distinct phenotypes, not a single disease. Identifying these asthma subphenotypes can improve understanding of genetics, mechanisms, and treatment responses.

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

Published on: November 4, 2010

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Last Updated: May 11, 2026

Murine Model of Allergen Induced Asthma
08:05

Murine Model of Allergen Induced Asthma

Published on: May 14, 2012

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

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Area of Science:

  • Pulmonology
  • Immunology
  • Genetics

Background:

  • Asthma is a heterogeneous respiratory condition.
  • Traditionally viewed as a single disease, recent insights reveal asthma as a complex syndrome.
  • Clinical characteristics like onset age and severity pattern highlight its heterogeneity.

Purpose of the Study:

  • To review the concept of asthma phenotypes.
  • To explore the shift in understanding asthma from a single entity to a collection of overlapping phenotypes.
  • To emphasize the importance of recognizing specific asthma subphenotypes.

Main Methods:

  • Literature search of PubMed databases.
  • Analysis of articles concerning asthma phenotypes.
  • Synthesis of current understanding regarding asthma classification.

Main Results:

  • Asthma is increasingly recognized as a complex syndrome rather than a single disease.
  • A novel classification based on airway inflammation is proposed.
  • Asthma phenotypes represent a series of complex, overlapping individual variations.

Conclusions:

  • Recognizing specific asthma subphenotypes is crucial.
  • Understanding subphenotypes can advance knowledge of genetic underpinnings.
  • Identifying phenotypes may elucidate pathophysiologic mechanisms and guide treatment strategies.