27 results found
    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 et al.
    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

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

    Xueying Wang et al.
    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. Neuroscience

    Opioids modulate an emergent rhythmogenic process to depress breathing

    Xiaolu Sun et al.
    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

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

    Nathan A Baertsch et al.
    Opioids cause hyperpolarization and pre-synaptic suppression among a subset of preBötzinger Complex neurons to impair respiratory rhythmogenesis.
    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.
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    1. Neuroscience

    Atoh1-dependent rhombic lip neurons are required for temporal delay between independent respiratory oscillators in embryonic mice

    Srinivasan Tupal et al.
    The rhythmic patterns of activity that underlie breathing are generated and coordinated by distinct populations of neurons within the brainstem.
    1. Neuroscience

    Dbx1 precursor cells are a source of inspiratory XII premotoneurons

    Ann L Revill et al.
    Building on previous work (Wang et al., 2014), we use a combination of genetic, electrophysiology and laser ablation approaches to identify a developmentally defined population of neurons that are a significant source of clinically relevant inspiratory drive to XII motoneurons.
    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

    Long ascending propriospinal neurons provide flexible, context-specific control of interlimb coordination

    Amanda M Pocratsky et al.
    Conditional silencing of long ascending propriospinal neurons disrupts interlimb coordination of the fore and hindlimb pairs, but in a highly context-specific manner.
    1. Neuroscience

    PreBötzinger complex neurons drive respiratory modulation of blood pressure and heart rate

    Clément Menuet et al.
    The PreBötzinger complex, which contains neurons that are the kernel for inspiratory rhythm generation, also contains sympathoexcitatory and parasympathoinhibitory neurons that drive respiratory-phase oscillations in blood pressure and heart rate.

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