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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 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: 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:
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...

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Related Experiment Video

Updated: May 20, 2026

Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis
09:52

Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis

Published on: March 9, 2018

Chapter 18: Allergic bronchopulmonary aspergillosis.

Paul A Greenberger

    Allergy and Asthma Proceedings
    |July 17, 2012
    PubMed
    Summary

    Allergic bronchopulmonary aspergillosis (ABPA) is diagnosed in asthma or cystic fibrosis patients with specific symptoms and Aspergillus skin test positivity. Early diagnosis and treatment with prednisone and antifungals are crucial to prevent bronchiectasis.

    Area of Science:

    • Pulmonology
    • Immunology
    • Infectious Diseases

    Background:

    • Allergic bronchopulmonary aspergillosis (ABPA) is a hypersensitivity disorder affecting the lungs.
    • It commonly occurs in individuals with asthma or cystic fibrosis.
    • ABPA is characterized by pulmonary infiltrates, mucus plugging, elevated IgE, and eosinophilia.

    Purpose of the Study:

    • To outline the diagnostic criteria for ABPA.
    • To discuss the differential diagnosis of ABPA in asthma patients.
    • To describe current treatment strategies and potential complications.

    Main Methods:

    • Diagnosis relies on clinical presentation, skin testing to Aspergillus, and radiographic findings.
    • Differential diagnosis involves considering conditions with overlapping symptoms like asthma, eosinophilia, and infiltrates.

    More Related Videos

    Confocal Laser Scanning Microscopy-Based Quantitative Analysis of Aspergillus fumigatus Conidia Distribution in Whole-Mount Optically Cleared Mouse Lung
    15:01

    Confocal Laser Scanning Microscopy-Based Quantitative Analysis of Aspergillus fumigatus Conidia Distribution in Whole-Mount Optically Cleared Mouse Lung

    Published on: September 18, 2021

    Related Experiment Videos

    Last Updated: May 20, 2026

    Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis
    09:52

    Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis

    Published on: March 9, 2018

    Confocal Laser Scanning Microscopy-Based Quantitative Analysis of Aspergillus fumigatus Conidia Distribution in Whole-Mount Optically Cleared Mouse Lung
    15:01

    Confocal Laser Scanning Microscopy-Based Quantitative Analysis of Aspergillus fumigatus Conidia Distribution in Whole-Mount Optically Cleared Mouse Lung

    Published on: September 18, 2021

  • Treatment involves corticosteroids (prednisone) and antifungal agents (itraconazole, voriconazole).

    • Main Results:

    • Early diagnosis is key to preventing irreversible bronchiectasis.
    • Mucus plugging, visualized as a "tree in bud" pattern on CT, can indicate ABPA or other conditions.
    • Treatment aims to resolve pulmonary infiltrates and manage inflammation.

    Conclusions:

    • ABPA requires a high index of suspicion in susceptible patients.
    • Prompt treatment can mitigate lung damage and prevent complications.
    • Understanding the immunologic basis, including Th2 lymphocyte involvement, aids in comprehending ABPA pathogenesis.