کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9424150 | 1295251 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Long-term intracellular recordings of respiratory neuronal activities in situ during eupnea, gasping and blockade of synaptic transmission
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
For a definitive evaluation of the hypothesis that different neurophysiological mechanisms underlie the neurogenesis of eupnea and gasping, long-term continuous intracellular recordings of respiratory neuronal activities during both respiratory patterns are required. Such recordings in vivo are technically difficult, especially in small mammals, due to mechanical instability of the brainstem and cardiovascular depression that accompany hypoxia-induced gasping. Respiratory-related rhythmic activities of in vitro preparations are confounded by the lack of a clear correspondence with both eupnea and gasping. Here, we describe new methodologies and report on whole cell patch clamp recordings from the ventrolateral medulla and the hypoglossal motor nucleus in situ during multiple bouts of hypoxia-induced gasping. The longevity of recordings (range 20-35Â min) also allowed subsequent analysis of neuronal behaviour after blockade of inhibitory and excitatory synaptic activities. We conclude that whole cell patch clamp recordings in the in situ preparation will allow an analysis of both synaptic and ionic conductances of respiratory neurons during defined eupnea and gasping, providing an additional approach to in vitro preparations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Neuroscience Methods - Volume 147, Issue 2, 30 September 2005, Pages 138-145
Journal: Journal of Neuroscience Methods - Volume 147, Issue 2, 30 September 2005, Pages 138-145
نویسندگان
Julian F.R. Paton, Walter M. St.-John,