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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-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-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:

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: 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 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,...

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Related Experiment Video

Updated: May 28, 2026

Immunofluorescent Labeling in Nasal Mucosa Tissue Sections of Allergic Rhinitis Rats via Multicolor Immunoassay

Immunofluorescent Labeling in Nasal Mucosa Tissue Sections of Allergic Rhinitis Rats via Multicolor Immunoassay

Published on: September 22, 2023

Nasal disease and asthma.

G L Marseglia¹, P Merli, D Caimmi

¹Department of Pediatrics, University of Pavia - Foundation IRCCS Policlinico San Matteo, Pavia, Italy.

International Journal of Immunopathology and Pharmacology

|October 29, 2011

Summary

This summary is machine-generated.

Nasal diseases like allergic rhinitis, chronic rhinosinusitis, and nasal polyposis are linked to asthma and bronchial hyperresponsiveness. This review clarifies the complex relationship between upper and lower airway conditions.

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Absorption of Nasal and Bronchial Fluids: Precision Sampling of the Human Respiratory Mucosa and Laboratory Processing of Samples

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Murine Nasal Lavage Fluid Collection without Blood Contamination

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Published on: July 11, 2025

Area of Science:

Otorhinolaryngology
Pulmonology
Immunology

Background:

The nose functions as a critical airway filter and conditioner.
Nasal diseases are frequently associated with comorbidities, including asthma and bronchial hyperresponsiveness (BHR).
Existing research highlights upper and lower airway connections, but uncertainties persist due to the heterogeneity of nasal disorders.

Purpose of the Study:

To systematically review epidemiological, pathophysiological, and clinical data on the relationship between nasal diseases and asthma.
To differentiate the impact of allergic rhinitis, chronic rhinosinusitis, and nasal polyposis on asthma.
To address diagnostic challenges and heterogeneity in nasal disorder classification.

Main Methods:

Systematic literature review.
Analysis of epidemiological data.
Evaluation of pathophysiological mechanisms.
Clinical data assessment.

Main Results:

The review synthesizes current evidence linking specific nasal conditions to asthma.
It highlights distinct pathophysiological pathways for allergic rhinitis, chronic rhinosinusitis, and nasal polyposis in relation to asthma.
Data on epidemiological prevalence and clinical manifestations are presented.

Conclusions:

Nasal diseases represent a significant factor in asthma development and exacerbation.
Understanding the specific type of nasal condition is crucial for effective asthma management.
Further research is warranted to elucidate complex interactions and improve diagnostic criteria.