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Related Concept Videos

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The significance of social relationships in psychological well-being is a well-established area of inquiry within social psychology. Research consistently demonstrates that the presence of meaningful, supportive relationships enhances emotional health, while the absence or deterioration of such connections can contribute to psychological distress. Relationships serve as a foundation for emotional support, identity, and social belonging, all of which are critical to an individual’s overall...
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The dissolution of intimate relationships presents complex emotional and psychological challenges, particularly when emotional bonds are strong, the relationship is long-standing, and perceived alternatives are limited. This distress often intensifies in romantic breakups, where the initiator may experience greater turmoil than the rejected partner. Contributing factors include residual attachment, guilt over causing pain, and uncertainty about how to manage the situation. The stress is further...
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Related Experiment Video

Updated: Feb 9, 2026

Precision Induction and Distinction of Coughing and Sneezing Reflexes in Mice
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Precision Induction and Distinction of Coughing and Sneezing Reflexes in Mice

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Mucous hypersecretion and relationship to cough.

Jay A Nadel1

  • 1Cardiovascular Research Institute and Department of Medicine, University of California, San Francisco, USA. jay.nadel@ucsf.edu

Pulmonary Pharmacology & Therapeutics
|February 26, 2013
PubMed
Summary
This summary is machine-generated.

Mucins are key to clearing inhaled irritants, but excessive mucus in obstructive airway diseases like COPD causes cough and airway plugging. Understanding mucin signaling pathways can lead to new therapies for these conditions.

Keywords:
CoughEGFRMucinsMucous hypersecretionMucous pluggingPositive feedback

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Methods for Detecting Cough and Airway Inflammation in Mice
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Area of Science:

  • Pulmonary Medicine
  • Cell Biology
  • Respiratory Physiology

Background:

  • Airway mucins are crucial for clearing inhaled foreign materials like viruses and smoke.
  • Normally, mucus clearance is efficient, preventing lung function interference.
  • Obstructive airway diseases (COPD, asthma, cystic fibrosis) involve excessive mucus production.

Purpose of the Study:

  • To explore mechanisms regulating normal mucin production.
  • To investigate pathways causing exaggerated mucin secretion in obstructive airway diseases.
  • To understand the role of mucin hypersecretion in cough and airway plugging.

Main Methods:

  • Review of signaling cascades, including the Epidermal Growth Factor Cascade, involved in mucin production.
  • Analysis of positive feedback systems inducing hypersecretion in disease states.
  • Examination of the impact of mucous hypersecretion on large conducting airways and small airways (bronchioles).

Main Results:

  • Mucins are secreted by airway epithelial cells in response to irritants via signaling pathways.
  • In obstructive airway diseases, positive feedback loops lead to excessive mucin secretion.
  • Mucous hypersecretion causes cough in large airways and plugging in small airways, a "silent zone."

Conclusions:

  • Mucous hypersecretion is a significant factor in obstructive airway diseases, contributing to cough and airway obstruction.
  • Targeting signaling pathways involved in mucin hypersecretion offers potential for novel therapeutic strategies.
  • Preventing small airway plugging is critical for managing chronic obstructive airway diseases and improving patient outcomes.