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Related Concept Videos

Asthma-I: Introduction01:29

Asthma-I: Introduction

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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...
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Asthma: Pathogenesis and Management01:20

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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.
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Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

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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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Asthma-IV: Diagnostic and Management01:30

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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:
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Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

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Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

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Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
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Related Experiment Video

Updated: Mar 5, 2026

Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation
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Mechanisms Driving Gender Differences in Asthma.

Hubaida Fuseini1, Dawn C Newcomb2,3

  • 1Department of Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, TN, 37232, USA.

Current Allergy and Asthma Reports
|March 24, 2017
PubMed
Summary
This summary is machine-generated.

Sex hormones significantly impact asthma, with estrogen worsening airway inflammation and testosterone improving it. Understanding these mechanisms is crucial for managing asthma in women throughout their lives.

Keywords:
EstrogenIL-17A-mediated inflammationSex hormonesTestosteroneType 2 inflammation

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Last Updated: Mar 5, 2026

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Area of Science:

  • Immunology
  • Endocrinology
  • Pulmonology

Background:

  • Asthma presents diverse phenotypes and a notable gender disparity in prevalence.
  • Adult women exhibit higher asthma prevalence, severity, and later onset compared to men.

Purpose of the Study:

  • To review clinical and animal studies on sex hormone roles in asthma pathogenesis.
  • To explore hormone effects on airway inflammation, smooth muscle function, mucus production, and mechanics.

Main Methods:

  • Review of clinical evidence and animal model studies.
  • Analysis of sex hormone influence on immune responses (Th2, IL-17A) and immune cell function (dendritic cells, macrophages).

Main Results:

  • Estrogen exacerbates Th2-mediated airway inflammation; testosterone mitigates it.
  • Females show increased IL-17A-mediated airway inflammation and enhanced dendritic cell/macrophage function.
  • Hormonal effects on asthma post-puberty, during menstruation, pregnancy, and menopause require further elucidation.

Conclusions:

  • Sex hormones play a critical role in asthma pathogenesis, influencing airway inflammation differently between sexes.
  • Further research is needed to clarify mechanisms and guide therapeutic strategies, including hormonal contraceptive use and managing asthma during hormonal life changes.