Reconfiguration of respiratory-related population activity in a rostrally tilted transversal slice preparation following blockade of inhibitory neurotransmission in neonatal rats
Reconfiguration of respiratory-related population activity in a rostrally tilted transversal slice preparation following blockade of inhibitory neurotransmission in neonatal rats
复制标题
新生大鼠抑制性神经传递阻断后头侧倾斜横向切片制剂中呼吸相关群体活动的重新配置
DOI:
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
M. Dutschmann
中科院分区:
文献类型:
--
作者:
Frank Funke;Michael Müller;M. Dutschmann
Recent studies showed that respiratory rhythm generation depends on oscillators located in the pre-Bötzinger complex (pre-BötC) and the parafacial respiratory group (pFRG). To study inhibitory synaptic interactions between these two oscillators, we developed a rostrally tilted transversal slice preparation, which preserves these regions. The onset of rhythmic mass activity in the retrotrapezoid nucleus (RTN)/pFRG preceded that of the pre-BötC. Blockade of glycinergic and gamma-aminobutyric acidic inhibition synchronized pre-BötC and RTN/pFRG activity and significantly increased pre-BötC burst frequency, amplitude, and duration. Population imaging revealed recruitment of inspiratory-like neurones, while expiratory-like neurones lost their phasic activity. The reconfiguration after disinhibition reveals: (1) synaptic inhibition of the pre-BötC arising from the RTN/pFRG, (2) excitatory drive from the RTN/pFRG that triggers the pre-BötC burst. Our findings support the view that these synaptic interactions in vitro relate to the initiation of the inspiratory phase or to the steering of the expiratory–inspiratory phase transition in vivo.
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影响因子:
56.9
作者:
SMITH, JC;ELLENBERGER, HH;FELDMAN, JL
通讯作者:
FELDMAN, JL
DOI:
10.1152/jappl.1995.78.3.856
发表时间:
1995
期刊:
Journal of applied physiology (Bethesda, Md. : 1985)
影响因子:
--
作者:
England,SJ;Melton,JE;Douse,MA;Duffin,J
通讯作者:
Duffin,J
DOI:
10.1016/s0034-5687(00)00155-9
发表时间:
2000-09-01
期刊:
RESPIRATION PHYSIOLOGY
影响因子:
--
作者:
Smith, JC;Butera, RJ;Johnson, SM
通讯作者:
Johnson, SM
影响因子:
2.5
作者:
Smith, J. C.;Abdala, A. P. L.;Paton, J. F. R.
通讯作者:
Paton, J. F. R.
影响因子:
2.5
作者:
Shao, XM;Feldman, JL
通讯作者:
Feldman, JL