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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 I: Introduction01:28

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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...
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Asthma-II: Pathophysiology and Classification01:26

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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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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: 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.
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Asthma-III: Symptoms and Complications01:24

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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:
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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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Linking obesity and asthma.

E Rand Sutherland1

  • 1National Jewish Health and University of Colorado School of Medicine, Denver, Colorado.

Annals of the New York Academy of Sciences
|February 13, 2014
PubMed
Summary
This summary is machine-generated.

Obesity significantly impacts asthma risk and severity, leading to more symptoms and worse quality of life for obese asthmatics. Nonatopic mechanisms may explain treatment responses in these patients.

Keywords:
asthmaepidemiologyinflammationobesitysteroid

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Area of Science:

  • Pulmonary Medicine
  • Immunology
  • Obesity Research

Background:

  • Obesity is increasingly linked to asthma, affecting its risk, presentation, and outcomes.
  • Obese individuals with asthma often report more symptoms, poorer quality of life, and increased disease severity.
  • Obesity's effects on lung mechanics can mimic asthma symptoms, complicating diagnosis.

Purpose of the Study:

  • To review the influence of obesity-related inflammation on asthma.
  • To examine how obesity modifies asthma risk, prognosis, and treatment response.
  • To explore nonatopic mechanisms in obese asthmatics.

Main Methods:

  • Literature review of epidemiological and clinical studies.
  • Analysis of obesity's impact on lung function and inflammation biomarkers.
  • Discussion of emerging data on nonatopic mechanisms in obese asthma.

Main Results:

  • Epidemiological data confirm a higher incidence and severity of asthma in obese populations.
  • Obesity is associated with increased asthma symptoms, reduced quality of life, and greater healthcare utilization.
  • Traditional airway inflammation markers may not fully capture the impact of obesity on asthma.

Conclusions:

  • Obesity is a significant factor influencing asthma risk, phenotype, and prognosis.
  • Nonatopic inflammatory pathways may play a crucial role in obese asthmatics.
  • Obesity can alter the effectiveness of asthma therapies, particularly inhaled glucocorticoids.