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Asthma-I: Introduction

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 I: Introduction

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: Symptoms and Complications

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: Pathogenesis and Management

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 III: Clinical Manifestations

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-II: Pathophysiology and Classification

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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Updated: May 8, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Environment and asthma in adults.

Nicole Le Moual¹, Bénédicte Jacquemin, Raphaëlle Varraso

¹Inserm, Centre for research in epidemiology and population health (CESP), U1018, Respiratory and environmental epidemiology Team, F-94807 Villejuif, France; University Paris-Sud, UMRS 1018, 94807 Villejuif, France.

Presse Medicale (Paris, France : 1983)

|September 10, 2013

Summary

Environmental and lifestyle factors significantly impact adult-onset asthma, with emerging risks from cleaning agents. Further research using advanced tools and multidisciplinary collaboration is crucial for understanding these complex influences.

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Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

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Area of Science:

Environmental Health
Pulmonology
Epidemiology

Background:

The etiology of adult-onset asthma remains poorly understood.
Environmental and lifestyle factors are increasingly implicated in asthma development.
Recent decades have seen shifts in environmental exposures and lifestyle patterns.

Purpose of the Study:

To review recent advances in understanding environmental risk factors for adult-onset asthma.
To highlight challenging aspects and identify research gaps.
To explore the complex interplay between environment, lifestyle, and asthma.

Main Methods:

Literature review focusing on environmental risk factors.
Discussion of specific exposures: air pollution, occupational agents (cleaning products), lifestyle, and nutrition.
Exploration of methodological challenges in exposure assessment and gene-environment interactions.

Main Results:

Environmental and lifestyle exposures play a significant role in asthma and related phenotypes.
Emerging risks include exposure to cleaning agents in both home and work environments.
Changes in lifestyle and environment have altered known asthma risk factors.

Conclusions:

Multidisciplinary collaboration and objective exposure assessment tools are vital for advancing research.
Understanding the intricate relationships between socio-economic, nutritional, lifestyle, and environmental factors is key.
Further investigation into biological markers and gene-environment interactions is needed to elucidate the environmental role in asthma.