Rehabilitation and Therapy Commons^™

Contributions Of The Pre-Bötzinger Complex And The Kölliker-Fuse Nuclei To Respiratory Rhythm And Pattern Generation In Awake And Sleeping Goats, Hubert Forster, Joshua M. Bonis, Katie L. Krause, Julie Wenninger, Suzanne Neumueller, Matthew Hodges, Lawrence Pan

Physical Therapy Faculty Research and Publications

We investigated in three groups of awake and sleeping goats whether there are differences in ventilatory responses after injections of Ibotenic acid (IA, glutamate receptor agonist and neurotoxin) into the pre-Bötzinger complex (preBötC), lateral parabrachial (LPBN), medial (MPBN) parabrachial, or Kölliker-Fuse nuclei (KFN). In one group, within minutes after bilateral injection of 10 μl IA (50 mM) into the preBötC, there was a 10-fold increase in breathing frequency, but 1.5 h later, the goats succumbed to terminal apnea. These data are consistent with findings in reduced preparations that the preBötC is critical to sustaining normal breathing. In a second group, …