Research Article| Volume 164, ISSUE 1-2, P3-5, October 28, 2011

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Recent insights into the regulation of breathing

  • Gary D. Housley
    Department of Physiology, School of Medical Sciences, University of New South Wales, UNSW Kensington Campus, Sydney, NSW 2052, Australia. Tel.: +61 2 93851057; fax: +61 2 93851059.
    Translational Neuroscience Facility and Department of Physiology, School of Medical Sciences, University of New South Wales, Sydney, Australia
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      This mini review highlights recent research on the control of breathing that places gliotransmission and purinergic signaling as core drivers to the respiratory circuits in the brainstem. These elements underpin transduction of hypercapnia, hypoxia and acid sensing at central and peripheral chemoreceptors. The processes involve propagation of an extracellular ATP signal and associated P2 receptor activation, where ATP acts on both the glial cells and the associated output cells in the sensor complex — the respiratory rhythm generator neurons and the ventral inspiratory pre-motor neurons. At the peripheral carotid chemoreceptor, the hypoxia sensor likely involves the gasotransmitter H2S, complemented by purinergic neurotransmission.


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