Respiratory rhythm generation during gasping depends on persistent sodium current

被引:167
作者
Paton, JFR [1 ]
Abdala, APL
Koizumi, H
Smith, JC
St John, WM
机构
[1] Univ Bristol, Sch Med Sci, Bristol Heart Inst, Dept Physiol, Bristol BS8 1TH, Avon, England
[2] NINDS, Cellular & Syst Neurobiol Sect, NIH, Bethesda, MD 20892 USA
[3] Dartmouth Coll, Hitchcock Med Ctr, Dartmouth Med Sch, Dept Physiol, Lebanon, NH 03756 USA
关键词
D O I
10.1038/nn1650
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
In severe hypoxia, homeostatic mechanisms maintain function of the brainstem respiratory network. We hypothesized that hypoxia involves a transition from neuronal mechanisms of normal breathing (eupnea) to a rudimentary pattern of inspiratory movements (gasping). We provide evidence for hypoxia-driven transformation within the central respiratory oscillator, in which gasping relies on persistent sodium current, whereas eupnea does not depend on this cellular mechanism.
引用
收藏
页码:311 / 313
页数:3
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共 15 条
  • [1] Models of respiratory rhythm generation in the pre-Botzinger complex. II. Populations of coupled pacemaker neurons
    Butera, RJ
    Rinzel, J
    Smith, JC
    [J]. JOURNAL OF NEUROPHYSIOLOGY, 1999, 82 (01) : 398 - 415
  • [2] Sodium and calcium current-mediated pacemaker neurons and respiratory rhythm generation
    Del Negro, CA
    Morgado-Valle, C
    Hayes, JA
    Mackay, DD
    Pace, RW
    Crowder, EA
    Feldman, JL
    [J]. JOURNAL OF NEUROSCIENCE, 2005, 25 (02) : 446 - 453
  • [3] Respiratory rhythm: An emergent network property?
    Del Negro, CA
    Morgado-Valle, C
    Feldman, JL
    [J]. NEURON, 2002, 34 (05) : 821 - 830
  • [4] Models of respiratory rhythm generation in the pre-Botzinger complex. III. Experimental tests of model predictions
    Del Negro, CA
    Johnson, SM
    Butera, RJ
    Smith, JC
    [J]. JOURNAL OF NEUROPHYSIOLOGY, 2001, 86 (01) : 59 - 74
  • [5] Oxygen-sensing persistent sodium channels in rat hippocampus
    Hammarström, AKM
    Gage, PW
    [J]. JOURNAL OF PHYSIOLOGY-LONDON, 2000, 529 (01): : 107 - 118
  • [6] Reconfiguration of the neural network controlling multiple breathing patterns: eupnea, sighs and gasps
    Lieske, SP
    Thoby-Brisson, M
    Telgkamp, P
    Ramirez, JM
    [J]. NATURE NEUROSCIENCE, 2000, 3 (06) : 600 - 607
  • [7] Differential contribution of pacemaker properties to the generation of respiratory rhythms during normoxia and hypoxia
    Peña, F
    Parkis, MA
    Tryba, AK
    Ramirez, JM
    [J]. NEURON, 2004, 43 (01) : 105 - 117
  • [8] Determinants of inspiratory activity
    Ramirez, JM
    Viemari, JC
    [J]. RESPIRATORY PHYSIOLOGY & NEUROBIOLOGY, 2005, 147 (2-3) : 145 - 157
  • [9] Studying rhythmogenesis of breathing:: comparison of in vivo and in vitro models
    Richter, DW
    Spyer, KM
    [J]. TRENDS IN NEUROSCIENCES, 2001, 24 (08) : 464 - 472
  • [10] Endogenous rhythm generation in the pre-Botzinger complex and ionic currents:: modelling and in vitro studies
    Rybak, IA
    Shevtsova, NA
    St-John, WM
    Paton, JFR
    Pierrefiche, O
    [J]. EUROPEAN JOURNAL OF NEUROSCIENCE, 2003, 18 (02) : 239 - 257