Pathophysiology of sleep apnea

JA Dempsey, SC Veasey, BJ Morgan… - Physiological …, 2010 - journals.physiology.org
Sleep-induced apnea and disordered breathing refers to intermittent, cyclical cessations or
reductions of airflow, with or without obstructions of the upper airway (OSA). In the presence …

[HTML][HTML] Regulation of breathing and autonomic outflows by chemoreceptors

PG Guyenet - Comprehensive Physiology, 2014 - ncbi.nlm.nih.gov
Lung ventilation fluctuates widely with behavior but arterial PCO 2 remains stable. Under
normal conditions, the chemoreflexes contribute to PaCO 2 stability by producing small …

Integration of cerebrovascular CO2 reactivity and chemoreflex control of breathing: mechanisms of regulation, measurement, and interpretation

PN Ainslie, J Duffin - American Journal of Physiology …, 2009 - journals.physiology.org
Cerebral blood flow (CBF) and its distribution are highly sensitive to changes in the partial
pressure of arterial CO2 (PaCO2). This physiological response, termed cerebrovascular …

Mechanisms and consequences of oxygen and carbon dioxide sensing in mammals

EP Cummins, MJ Strowitzki… - Physiological …, 2020 - journals.physiology.org
Molecular oxygen (O2) and carbon dioxide (CO2) are the primary gaseous substrate and
product of oxidative phosphorylation in respiring organisms, respectively. Variance in the …

Central sleep apnea

S Javaheri, JA Dempsey - Comprehensive Physiology, 2013 - Wiley Online Library
Neurophysiologically, central apnea is due to a temporary failure in the pontomedullary
pacemaker generating breathing rhythm. As a polysomnographic finding, central apneas …

Central respiratory chemoreception

PG Guyenet, RL Stornetta… - Journal of Comparative …, 2010 - Wiley Online Library
By definition central respiratory chemoreceptors (CRCs) are cells that are sensitive to
changes in brain PCO2 or pH and contribute to the stimulation of breathing elicited by …

Breathing and sleep at high altitude

PN Ainslie, SJE Lucas, KR Burgess - Respiratory physiology & …, 2013 - Elsevier
We provide an updated review on the current understanding of breathing and sleep at high
altitude in humans. We conclude that:(1) progressive changes in pH initiated by the …

Peripheral chemoreceptors determine the respiratory sensitivity of central chemoreceptors to CO2

GM Blain, CA Smith, KS Henderson… - The Journal of …, 2010 - Wiley Online Library
We assessed the contribution of carotid body chemoreceptors to the ventilatory response to
specific CNS hypercapnia in eight unanaesthetized, awake dogs. We denervated one …

Advancing respiratory–cardiovascular physiology with the working heart–brainstem preparation over 25 years

JFR Paton, BH Machado, DJA Moraes… - The Journal of …, 2022 - Wiley Online Library
Twenty‐five years ago, a new physiological preparation called the working heart–brainstem
preparation (WHBP) was introduced with the claim it would provide a new platform allowing …

Novel oxygen sensing mechanism in the spinal cord involved in cardiorespiratory responses to hypoxia

NO Barioni, F Derakhshan, L Tenorio Lopes… - Science …, 2022 - science.org
As blood oxygenation decreases (hypoxemia), mammals mount cardiorespiratory
responses, increasing oxygen to vital organs. The carotid bodies are the primary oxygen …