Breathing control center neurons that promote arousal in mice.
Author: Yackle K1, Schwarz LA2, Kam K3,4, Sorokin JM5, Huguenard JR5, Feldman JL3, Luo L2, Krasnow MA6
Affiliation:
1Howard Hughes Medical Institute, Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA.
2Howard Hughes Medical Institute, Department of Biology, Stanford University, Stanford, CA 94305, USA.
3Systems Neurobiology Laboratory, Department of Neurobiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA.
4Department of Cell Biology and Anatomy, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, USA.
5Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA 94305, USA.
6Howard Hughes Medical Institute, Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA. krasnow@stanford.edu.
Conference/Journal: Science.
Date published: 2017 Mar 31
Other:
Volume ID: 355 , Issue ID: 6332 , Pages: 1411-1415 , Special Notes: doi: 10.1126/science.aai7984. Epub 2017 Mar 30. , Word Count: 132
Slow, controlled breathing has been used for centuries to promote mental calming, and it is used clinically to suppress excessive arousal such as panic attacks. However, the physiological and neural basis of the relationship between breathing and higher-order brain activity is unknown. We found a neuronal subpopulation in the mouse preBötzinger complex (preBötC), the primary breathing rhythm generator, which regulates the balance between calm and arousal behaviors. Conditional, bilateral genetic ablation of the ~175 Cdh9/Dbx1 double-positive preBötC neurons in adult mice left breathing intact but increased calm behaviors and decreased time in aroused states. These neurons project to, synapse on, and positively regulate noradrenergic neurons in the locus coeruleus, a brain center implicated in attention, arousal, and panic that projects throughout the brain.
PMID: 28360327 PMCID: PMC5505554 DOI: 10.1126/science.aai7984
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