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Related Concept Videos

COPD: Pathogenesis and Clinical Features01:20

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Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
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The center of gravity of a body is an imaginary point where the body's total weight is assumed to be concentrated, and the body is perfectly balanced. The center of the mass of a body is a point at which the whole of the mass of the body appears to be concentrated. If the acceleration due to gravity, g, has the same value at all points on a body, its center of gravity is identical to its center of mass. The center of gravity of homogeneous bodies such as a sphere, cube, or rectangular plate...
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Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
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COPD Pathogenesis: Finding the Common in the Complex.

Jerome O Cantor1, Gerard M Turino1

  • 1Department of Pharmaceutical and Allied Health Sciences, St. John's University and St. Luke's-Mount Sinai Hospital Center, New York, NY.

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Understanding molecular changes is key to treating pulmonary emphysema, a form of chronic obstructive pulmonary disease (COPD). We propose a new model viewing emphysema as an emergent phenomenon leading to alveolar wall rupture and COPD symptoms.

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Area of Science:

  • Pulmonary medicine
  • Biophysics
  • Molecular biology

Background:

  • Chronic obstructive pulmonary disease (COPD), particularly pulmonary emphysema, lacks a comprehensive model explaining airspace enlargement.
  • Existing understanding does not fully integrate biochemical and mechanical factors driving disease progression.

Purpose of the Study:

  • To propose a novel model for pulmonary emphysema.
  • To describe emphysematous changes as an emergent phenomenon.
  • To link molecular alterations to macroscopic lung structure and clinical signs of COPD.

Main Methods:

  • Conceptual modeling integrating molecular, mechanical, and structural aspects of lung tissue.
  • Biomarker identification for early detection.
  • Therapeutic strategy development based on the emergent phenomenon model.

Main Results:

  • Pulmonary emphysema is proposed as an emergent phenomenon.
  • Molecular changes reach a critical threshold, leading to mechanical forces causing alveolar wall rupture.
  • This process correlates with advanced clinical signs of COPD.

Conclusions:

  • An emergent phenomenon model offers a more accurate description of pulmonary emphysema.
  • Coupling morphologic changes with biomarkers can aid in early detection and therapeutic intervention.
  • This approach provides a practical strategy for managing COPD and emphysema.