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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: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

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
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...
Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
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.

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Related Experiment Video

Updated: Jun 16, 2026

Auricular Acupressure as an Adjuvant Treatment for Wheezing in Stable Chronic Obstructive Pulmonary Disease
02:34

Auricular Acupressure as an Adjuvant Treatment for Wheezing in Stable Chronic Obstructive Pulmonary Disease

Published on: May 10, 2024

Vitamin A deficiency and wheezing.

Zheng-Xiu Luo1, En-Mei Liu, Jian Luo

  • 1Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China. luozhengxiu816@163.com

World Journal of Pediatrics : WJP
|February 10, 2010
PubMed
Summary

Infant wheezing is linked to vitamin A deficiency. Lower vitamin A levels correlate with more persistent and severe wheezing episodes in infants, suggesting a significant relationship.

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Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
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Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Published on: August 7, 2017

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Last Updated: Jun 16, 2026

Auricular Acupressure as an Adjuvant Treatment for Wheezing in Stable Chronic Obstructive Pulmonary Disease
02:34

Auricular Acupressure as an Adjuvant Treatment for Wheezing in Stable Chronic Obstructive Pulmonary Disease

Published on: May 10, 2024

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
05:31

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Published on: August 7, 2017

Area of Science:

  • Pediatric Pulmonology
  • Nutritional Science
  • Clinical Research

Background:

  • Vitamin A deficiency can heighten respiratory tract sensitivity, increasing infection risk and leading to wheezing.
  • Infant wheezing is a common respiratory issue with potential links to nutritional status.

Purpose of the Study:

  • To investigate the association between vitamin A deficiency and the occurrence of wheezing in infants.
  • To explore the relationship between serum vitamin A levels and the severity and course of infant wheezing.

Main Methods:

  • Collected venous blood samples from 331 hospitalized infants diagnosed with wheezing.
  • Measured serum vitamin A concentration to assess deficiency levels.
  • Analyzed the correlation between vitamin A status and wheezing characteristics.

Main Results:

  • A higher prevalence of moderate and severe vitamin A deficiency was observed in infants with persistent wheezing compared to acute wheezing (P<0.01).
  • Severe vitamin A deficiency was significantly more common in infants with severe wheezing than in those with mild or moderate wheezing (P<0.01).
  • The degree of vitamin A deficiency correlated with both the duration and intensity of wheezing episodes.

Conclusions:

  • Serum vitamin A deficiency is prevalent in infants experiencing wheezing.
  • The severity of vitamin A deficiency appears to be associated with the course and severity of wheezing in infants.