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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: Introduction01:29

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-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: 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-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: Jun 2, 2026

Methods for Detecting Cough and Airway Inflammation in Mice
04:33

Methods for Detecting Cough and Airway Inflammation in Mice

Published on: August 2, 2024

Cough in asthma.

Scott E Turcotte1, M Diane Lougheed

  • 1Department of Medicine, Queen's University, and Asthma Research Unit, Kingston General Hospital, Kingston, Ontario, Canada.

Current Opinion in Pharmacology
|May 14, 2011
PubMed
Summary
This summary is machine-generated.

Cough variant asthma may be distinguished by preserved deep inspiration effects, unlike classic asthma. This review explores cough triggers, mechanisms, and receptors in both asthma types.

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A Traditional Chinese Medicine Characteristic Therapy for Bronchial Asthma: Moxibustion
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Last Updated: Jun 2, 2026

Methods for Detecting Cough and Airway Inflammation in Mice
04:33

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Published on: August 2, 2024

A Traditional Chinese Medicine Characteristic Therapy for Bronchial Asthma: Moxibustion
05:56

A Traditional Chinese Medicine Characteristic Therapy for Bronchial Asthma: Moxibustion

Published on: May 12, 2023

Area of Science:

  • Pulmonology
  • Respiratory Medicine
  • Clinical Immunology

Background:

  • Asthma frequently presents with chronic cough, which can be the primary symptom.
  • The underlying mechanisms of cough in asthma are complex and multifactorial.
  • The pathophysiology distinguishing cough variant asthma from classic asthma remains unclear.

Purpose of the Study:

  • To review tussive agents and stimuli used in asthma-related cough research.
  • To elucidate the mechanisms of action and receptors involved in cough.
  • To characterize the distinct responses in classic versus cough variant asthma.

Main Methods:

  • Review of scientific literature on cough variant asthma and classic asthma.
  • Analysis of inhalation challenge tests and their findings.
  • Examination of tussive agents, including direct, indirect, and combined bronchoconstrictive stimuli.

Main Results:

  • Deep inspirations may have bronchodilating and bronchoprotective effects.
  • Preservation of these deep inspiration effects appears characteristic of cough variant asthma.
  • Specific tussive agents and receptor pathways are implicated in cough induction.

Conclusions:

  • Cough variant asthma may be differentiated by preserved deep inspiration reflexes.
  • Understanding cough mechanisms and stimuli is crucial for diagnosing and managing asthma subtypes.
  • Further research is needed to fully elucidate the pathophysiologic differences between asthma phenotypes.