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Related Concept Videos

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.
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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Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

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Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

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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
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Asthma-I: Introduction01:29

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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 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.
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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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Methodology for Sputum Induction and Laboratory Processing
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Coagulation-dependent mechanisms and asthma.

Michael A Matthay1, John A Clements

  • 1Cardiovascular Research Institute, University of California, San Francisco, 94143-0130, USA. mmatt@itsa.ucsf.edu

The Journal of Clinical Investigation
|July 3, 2004
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Summary
This summary is machine-generated.

Disordered blood clotting and fibrinolysis may play a role in asthma development. Inflammation in asthma may lead to fibrin buildup, contributing to airway closure.

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Area of Science:

  • Pulmonary Medicine
  • Hematology
  • Immunology

Background:

  • Inflammation-related tissue injury often involves coagulation and fibrinolysis.
  • Asthma involves airway inflammation, smooth muscle contraction, and hyperresponsiveness.

Discussion:

  • A mouse model of allergic airway hyperreactivity suggests a link between coagulation/fibrinolysis and asthma.
  • Inflammatory processes in asthma may promote extravascular fibrin accumulation.
  • This fibrin deposition, along with exudates and inflammatory cells, could contribute to airway closure.

Key Insights:

  • Coagulation and fibrinolysis are implicated in the pathogenesis of asthma.
  • Inflammation in allergic airway hyperreactivity can lead to fibrin deposition in the airways.
  • Fibrin accumulation may contribute to airway smooth muscle contraction and hyperresponsiveness.

Outlook:

  • Further research is needed to elucidate the precise mechanisms linking coagulation, fibrinolysis, and asthma.
  • Therapeutic strategies targeting coagulation or fibrinolysis could offer new avenues for asthma treatment.