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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-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: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

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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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Obesity01:24

Obesity

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The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
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Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

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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
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Asthma-IV: Diagnostic and Management01:30

Asthma-IV: Diagnostic and Management

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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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Related Experiment Video

Updated: Oct 3, 2025

Intraperitoneal Glucose Tolerance Test, Measurement of Lung Function, and Fixation of the Lung to Study the Impact of Obesity and Impaired Metabolism on Pulmonary Outcomes
08:30

Intraperitoneal Glucose Tolerance Test, Measurement of Lung Function, and Fixation of the Lung to Study the Impact of Obesity and Impaired Metabolism on Pulmonary Outcomes

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Obesity and Asthma.

Anne E Dixon1, Loretta G Que2

  • 1Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont.

Seminars in Respiratory and Critical Care Medicine
|February 17, 2022
PubMed
Summary
This summary is machine-generated.

Obesity significantly increases asthma severity and risk. Understanding the complex links between obesity and asthma is crucial for effective management and treatment strategies in patients.

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Area of Science:

  • Pulmonology
  • Immunology
  • Metabolic Disorders

Background:

  • Obesity is a significant risk factor for asthma development.
  • A higher prevalence of obesity exists in asthma patients compared to the general population.
  • Sixty percent of adults with severe asthma in the U.S. are obese.

Purpose of the Study:

  • To explore the multifaceted mechanisms linking obesity and asthma.
  • To discuss how these pathways contribute to diverse asthma phenotypes in obese individuals.
  • To examine the practical implications for diagnosis, monitoring, and treatment.

Main Methods:

  • Review of current literature on obesity and asthma.
  • Discussion of physiological and immunological pathways.
  • Analysis of clinical observations and epidemiological data.

Main Results:

  • Multiple mechanisms connect obesity and asthma, leading to varied phenotypes.
  • Obesity impacts asthma diagnosis, monitoring, and medication response.
  • Increased risk of comorbidities like GERD, depression, and sleep apnea in obese asthma patients.
  • Obese individuals with asthma face elevated exacerbation risk, especially with viral infections.

Conclusions:

  • Weight management interventions (diet, exercise, weight loss) are vital for this patient group.
  • Addressing obesity is key to improving asthma control and reducing exacerbations.
  • Further research into obesity-specific asthma pathways is warranted.