Related Experiment Video

Updated: Aug 14, 2026

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
10:42

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10

Published on: November 19, 2016

Indoor air pollutants and immune biomarkers among Hungarian asthmatic children

Esther Erdei1, János Bobvos, Márta Brózik

  • 1Department of Biological Monitoring, József Fodor National Public Health Center, National Institute of Environmental Health, Budapest, Hungary. erdeie@okk.antsz.hu

Archives of Environmental Health
|March 3, 2004
PubMed

Insights

Indoor air pollutants like nitrogen dioxide are linked to immune system changes in children with respiratory issues. High pollutant levels correlate with altered white blood cells, red blood cells, and immunoglobulin levels.

Area of Science:

  • Environmental Health
  • Immunology
  • Pediatrics

Background:

  • Children with immunologically related respiratory diseases are sensitive to environmental factors.
  • Indoor air quality is a significant concern in urban environments, particularly for vulnerable populations.
  • Previous research suggests a link between air pollution and respiratory and immune health.

Purpose of the Study:

  • To investigate the association between indoor air pollutants and immune biomarkers in school children with respiratory diseases.
  • To identify specific indoor air pollutants that may influence immune system alterations in this population.
  • To understand the role of indoor air quality in the immune responses of sensitive children.

Main Methods:

  • Cross-sectional study involving 9-11 year old school children residing in Hungarian cities.
  • Passive indoor air monitoring for nitrogen dioxide, formaldehyde, benzene, xylene, and toluene.
  • Collection of venous blood samples for complete blood counts and immune biomarker analysis, including immunoglobulins (IgG, IgM) and specific antibodies.
  • Measurement of house dust mite allergen levels in homes.

Main Results:

  • Numerous immune biomarkers were significantly elevated in children with respiratory diseases compared to healthy children.
  • Significant associations were found between high indoor nitrogen dioxide concentrations and increased white blood cells, monocytes, red blood cells, and immunoglobulin G (IgG).
  • High nitrogen dioxide levels were also associated with decreased immunoglobulin M (IgM) and Klebsiella pneumoniae-specific IgM.
  • Bacterial-specific IgGs showed significant relationships with formaldehyde concentrations.

Conclusions:

  • Indoor air pollutants play a crucial role in modulating immune reactions in children with immunologically related respiratory diseases.
  • Nitrogen dioxide and formaldehyde are key indoor pollutants associated with specific immune biomarker alterations.
  • Reducing indoor air pollution exposure may be important for managing immune-related conditions in sensitive children.

More Related Videos

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels05:31

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

Published on: August 7, 2017

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber08:47

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber

Published on: March 3, 2023

Related Concept Videos

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

Asthma-II: Pathophysiology and Classification

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:
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 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: 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,...