Related Experiment Video
Updated: Jun 5, 2026
13:32
Videomorphometric Analysis of Hypoxic Pulmonary Vasoconstriction of Intra-pulmonary Arteries Using Murine Precision Cut Lung Slices
Published on: January 14, 2014
Self-organized patterns of airway narrowing
1Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA. twinkler@vqpet.mgh.harvard.edu
Journal of Applied Physiology (Bethesda, Md. : 1985)
|January 22, 2011
Summary
Respiratory diseases like asthma involve complex interactions. Understanding self-organized airway behaviors is key to developing effective prevention and treatment strategies.
Area of Science:
- Pulmonary Medicine and Systems Biology
Background:
- Respiratory diseases such as asthma and COPD exhibit complex behaviors.
- Interactions among airways in the bronchial tree can lead to self-organized patterns like airway narrowing and ventilation defects.
- The behavior of individual airways differs when isolated versus when part of the entire bronchial tree.
Purpose of the Study:
- To investigate the complex interactions and self-organized behaviors in respiratory diseases.
- To highlight the limitations of studying isolated airway components for understanding whole-organ behavior.
- To identify essential components of self-organized behavior for improved disease management.
Main Methods:
- Theoretical and experimental data analysis.
- Comparative study of isolated airways versus airways within the bronchial tree.
- Exploration of factors influencing complex system behavior.
Main Results:
- Interdependence within the bronchial tree drives self-organized phenomena.
- Isolated airway experiments may not fully represent in-vivo disease behavior.
- Specific factors within isolated elements can significantly alter complex system dynamics.
Conclusions:
- Understanding self-organized airway behavior is crucial for respiratory disease management.
- Effective strategies for asthma and COPD prevention and recovery depend on comprehending these complex interactions.
- Further research into the essential elements of self-organized behavior is necessary.
Related Concept Videos
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
01:13Asthma 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,...
01:23Chronic Obstructive Pulmonary Disease II: Emphysema
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
01:19Factors Affecting Pulmonary Ventilation
Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
01:19Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations
Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet cell...