34 results found
    1. Neuroscience

    Dual mechanisms of opioid-induced respiratory depression in the inspiratory rhythm-generating network

    Nathan A Baertsch, Nicholas E Bush ... Jan-Marino Ramirez
    Opioids cause hyperpolarization and pre-synaptic suppression among a subset of preBötzinger Complex neurons to impair respiratory rhythmogenesis.
    1. Neuroscience

    Opioids modulate an emergent rhythmogenic process to depress breathing

    Xiaolu Sun, Carolina Thörn Pérez ... Kaiwen Kam
    Inspiratory rhythmogenesis is mediated by an emergent mechanism independent of bursts associated with motor output and is modulated by opioids, pointing to strategies for ameliorating opioid-induced respiratory depression.
    1. Neuroscience

    Insights into the dynamic control of breathing revealed through cell-type-specific responses to substance P

    Nathan A Baertsch, Jan-Marino Ramirez
    The neuromodulator substance P enhances mechanisms of recurrent excitation between breaths to control breathing frequency and stability.
    1. Neuroscience

    Development of pacemaker properties and rhythmogenic mechanisms in the mouse embryonic respiratory network

    Marc Chevalier, Natalia Toporikova ... Muriel Thoby-Brisson
    Pacemaker neurons are present in the preBötC circuitry of mouse embryos and their role in driving respiratory network activity changes during the critical period immediately before birth.
    1. Neuroscience

    Predictions and experimental tests of a new biophysical model of the mammalian respiratory oscillator

    Ryan S Phillips, Hidehiko Koizumi ... Jeffrey C Smith
    The predictive power of a computational model advances understanding of the neuronal and circuit biophysical mechanisms that generate the respiratory rhythm and neural activity patterns in the mammalian brainstem.
    1. Neuroscience

    Microglia shape the embryonic development of mammalian respiratory networks

    Marie-Jeanne Cabirol, Laura Cardoit ... Muriel Thoby-Brisson
    Functional and anatomical analysis reveal a crucial role played during embryonic development by microglia in the ontogenesis and function of central circuits responsible for respiratory rhythmogenesis.
    1. Neuroscience

    Laser ablation of Dbx1 neurons in the pre-Bötzinger complex stops inspiratory rhythm and impairs output in neonatal mice

    Xueying Wang, John A Hayes ... Christopher A Del Negro
    Laser-ablating neurons of a single genetic class reveals that Dbx1-derived interneurons comprise core respiratory rhythmogenic and premotor circuits and provides quantitative cellular parameters that govern network functionality
    1. Computational and Systems Biology
    2. Neuroscience

    Biophysical mechanisms in the mammalian respiratory oscillator re-examined with a new data-driven computational model

    Ryan S Phillips, Tibin T John ... Jeffrey C Smith
    Computational modeling motivated by recent experiments clarifies biophysical mechanisms generating the rhythm and amplitude of breathing at the level of neurons and brain circuits in mammals.
    1. Neuroscience

    Gasotransmitter modulation of hypoglossal motoneuron activity

    Brigitte M Browe, Ying-Jie Peng ... Alfredo J Garcia III
    Electrophysiological analyses reveal interactions between gasotransmitter enzymes and their respective products that regulate hypoglossal motoneuron excitability and may drive changes in upper airway tone in obstructive sleep apnea and perturb behaviors such as vocalization and swallowing.
    1. Computational and Systems Biology
    2. Neuroscience

    Brain Networks: Modeling breathing rhythms

    Jan-Marino Ramirez, Nathan A Baertsch
    Computational models are helping researchers to understand how certain properties of neurons contribute to respiratory rhythms.
    Version of Record
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