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Precision Induction and Distinction of Coughing and Sneezing Reflexes in Mice
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Cough-related neural processing in the brain: a roadmap for cough dysfunction?

Ayaka Ando1, Michael J Farrell2, Stuart B Mazzone3

  • 1The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC 3010, Australia; School of Biomedical Sciences, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.

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Cough involves complex neural circuits in the brain, extending beyond basic reflexes. Understanding these central nervous system pathways is key to developing better therapies for cough dysfunction.

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Area of Science:

  • Neuroscience
  • Respiratory Medicine
  • Physiology

Background:

  • Cough is a vital airway protective reflex with sensory, motor, affective, and cognitive components.
  • The neural circuitry of cough extends beyond the brainstem to include subcortical and cortical brain regions.
  • Existing research identifies distinct brain responses related to cough's sensory, control, and emotional aspects.

Purpose of the Study:

  • To explore the complex neural basis of cough.
  • To highlight unanswered questions in cough research.
  • To stimulate future research directions for cough dysfunction.

Main Methods:

  • Review of existing neuroscientific studies on cough.
  • Analysis of brain regional responses to airway irritation and coughing.
  • Appraisal of clinical disorders of cough control.

Main Results:

  • The cough neural network is distributed throughout the central nervous system, not limited to a simple reflex arc.
  • Specific brain regions are involved in sensory discrimination, voluntary cough control, urge suppression, and emotional responses to cough.
  • Current therapeutic interventions for cough dysfunction are limited, suggesting a need for more diverse approaches.

Conclusions:

  • The central nervous system is a critical target for therapeutic interventions for cough.
  • Further research into the neural circuitry of cough is needed to develop diversified therapies for patients with cough dysfunction.
  • Understanding the multifaceted nature of cough is essential for advancing treatment strategies.