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Related Concept Videos

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...
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
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: May 19, 2026

Collection of Alfalfa Root Exudates to Study the Impact of Di(2-ethylhexyl) Phthalate on Metabolite Production
06:46

Collection of Alfalfa Root Exudates to Study the Impact of Di(2-ethylhexyl) Phthalate on Metabolite Production

Published on: June 2, 2023

The association between phthalate exposure and asthma.

Ming-Ju Tsai1, Po-Lin Kuo, Ying-Chin Ko

  • 1Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.

The Kaohsiung Journal of Medical Sciences
|August 9, 2012
PubMed
Summary

Phthalate exposure is linked to asthma development and severity. Recent research suggests phthalates may directly impact airway cells, contributing to chronic asthma and airway remodeling.

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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

Related Experiment Videos

Last Updated: May 19, 2026

Collection of Alfalfa Root Exudates to Study the Impact of Di(2-ethylhexyl) Phthalate on Metabolite Production
06:46

Collection of Alfalfa Root Exudates to Study the Impact of Di(2-ethylhexyl) Phthalate on Metabolite Production

Published on: June 2, 2023

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:

  • Environmental Health
  • Pulmonology
  • Toxicology

Background:

  • Asthma is a prevalent chronic airway inflammatory disease with increasing global burden.
  • Phthalate exposure is widespread, with epidemiological studies suggesting a link to asthma.
  • Previous research focused on immune cell effects, but recent evidence points to direct airway epithelial cell impacts.

Purpose of the Study:

  • To review human phthalate exposure in Taiwan.
  • To summarize epidemiological and experimental evidence on phthalates and asthma.
  • To explore the role of phthalates in asthma pathogenesis and airway remodeling.

Main Methods:

  • Review of epidemiological studies on phthalate exposure and asthma.
  • Analysis of experimental research on phthalate effects on airway cells.
  • Discussion of current evidence on phthalates as environmental factors in asthma.

Main Results:

  • Phthalates are recognized as significant environmental factors in asthma development.
  • Emerging evidence indicates phthalates may directly affect airway epithelial cells.
  • Phthalate exposure is correlated with airway remodeling and asthma severity.

Conclusions:

  • Phthalates play a role in asthma pathogenesis, potentially through direct effects on airway epithelium.
  • Further research is needed to fully understand the mechanisms linking phthalate exposure to asthma.
  • Phthalate exposure is a critical environmental factor to consider in asthma prevention and management.