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Published on: November 19, 2015
Integration of Central and Peripheral Respiratory Chemoreflexes
Richard J A Wilson1, Luc J Teppema2
1Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
The interaction between central and peripheral respiratory chemoreceptors remains debated. Their combined reflexes may be more adaptable than previously thought, varying with physiological state.
Area of Science:
- Physiology
- Respiratory System
- Neuroscience
Background:
- The discovery of respiratory chemoreceptors has led to ongoing debate regarding how their mediated reflexes interact.
- Understanding the integration of O2 and CO2 sensing is crucial for respiratory control.
Purpose of the Study:
- To critically review existing literature on the interaction of respiratory chemoreceptor reflexes.
- To explore the system integration of O2 and CO2 sensing in respiratory control.
Main Methods:
- Literature review of studies on O2 and CO2 sensing and respiratory chemoreceptor reflexes.
- Analysis of different perspectives on reflex combination (additive, hypoadditive, hyperadditive).
Main Results:
- Despite extensive research, consensus on the nature of reflex combination (additive, hypoadditive, hyperadditive) has not been reached.
- The review highlights the strengths of various experimental approaches used to study this topic.
Conclusions:
- The precise nature of respiratory chemoreceptor reflex interaction remains unresolved.
- The combination of reflexes may be more dynamic and state-dependent than previously assumed, influencing respiratory responses.
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