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Related Concept Videos

Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

2.8K
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:
2.8K
Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

562
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.
562
Asthma-I: Introduction01:29

Asthma-I: Introduction

2.8K
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...
2.8K
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

2.6K
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
2.6K
Asthma-IV: Diagnostic and Management01:30

Asthma-IV: Diagnostic and Management

2.6K
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:
2.6K
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs

435
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...
435

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Related Experiment Video

Updated: Sep 6, 2025

Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation
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Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation

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Body Composition-Specific Asthma Phenotypes: Clinical Implications.

Xin Zhang1,2,3, Ke Deng2,3, Yulai Yuan4

  • 1Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu 610044, China.

Nutrients
|June 24, 2022
PubMed
Summary
This summary is machine-generated.

Body composition analysis identified three asthma patient clusters: undernutrition, intermediate nutrition with psychological dysfunction, and good nutrition. Good nutrition was linked to fewer asthma exacerbations.

Keywords:
asthmabody compositionnutritional statusphenotypeskeletal muscle mass

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Area of Science:

  • Pulmonary Medicine
  • Clinical Nutrition
  • Biostatistics

Background:

  • Traditional body mass index (BMI) has limitations in defining disease phenotypes.
  • Body composition (BC) parameters for asthma phenotyping are underreported.

Purpose of the Study:

  • To identify and characterize asthma phenotypes using body composition parameters.
  • To assess the clinical features and outcomes associated with these phenotypes.

Main Methods:

  • Two prospective observational cohorts of adult stable asthma patients (n=541 training, n=179 validation).
  • Cluster analysis using a 2-step process with stepwise discriminant analysis.
  • Logistic regression to evaluate phenotype association with asthma exacerbations (AEs).

Main Results:

  • Three distinct asthma patient clusters were identified: undernutrition, intermediate nutrition with psychological dysfunction, and good nutrition.
  • The 'good nutrition' cluster (51.8%) showed a decreased risk of moderate-to-severe and severe AEs.
  • Skeletal muscle mass and visceral fat area were key BC factors for cluster assignment.

Conclusions:

  • Three distinct asthma patient clusters with differing clinical features and outcomes were defined.
  • Evaluating body composition is crucial for assessing nutritional status in asthma management.