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Article: Pre- and postsynaptic inhibitory actions of methionine-enkephalin on identified bulbospinal neurons of the rat RVL.

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Hayar A; Guyenet PG
J. Neurophysiol., 1998


Table 1.

Comparison between the electrophysiological properties of TH and non-TH, opioid-sensitive and -insensitive RVL bulbospinal neurons

n Number of Silent Cells Number of Active Cells Threshold, mV Overshoot, mV Amplitude, mV Duration, ms Input Resistance, MΩ
Non TH 31 9 (29) 22 (71) −45.1 ± 3.5 34.7 ± 6.3 79.8 ± 6.5 2.5 ± 0.6 600 ± 147
TH 17 5 (29) 12 (71) −43.8 ± 3.6 34.9 ± 9.0 78.5 ± 8.7 2.7 ± 0.6 640 ± 199
Opioid-sensitive 33 9 (27) 26 (73) −44.5 ± 3.8 36.7 ± 6.6* 81.2 ± 6.9** 2.5 ± 0.6 632 ± 175
Opioid-insensitive 15 5 (33) 10 (67) −44.8 ± 3.0 30.5 ± 7.2* 75.3 ± 7.3** 2.7 ± 0.8 575 ± 143
All neurons 48 14 (29) 34 (71) −44.6 ± 3.5 34.7 ± 7.3 79.3 ± 7.3 2.6 ± 0.6 615 ± 160

  • Values are means ± SE. Parentheses enclose percentages. Values with asterisks (* and **) indicate a significant difference using unpaired t-test (level P > 0.01). TH, tyrosine hydroxylase; RVL, rostral ventrolateral medulla.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Other rostral ventrolateral medulla bulbospinal neuron spike threshold (mV) -44.6 ± 3.5 (48) -44.6 (mV) Data Table
Other rostral ventrolateral medulla bulbospinal neuron spike peak (mV) 34.7 ± 7.3 (48) 34.7 (mV) Data Table
Other rostral ventrolateral medulla bulbospinal neuron spike amplitude (mV) 79.3 ± 7.3 (48) 79.3 (mV) Data Table
Other rostral ventrolateral medulla bulbospinal neuron spike width (ms) 2.6 ± 0.6 (48) 2.6 (ms) Data Table
Other rostral ventrolateral medulla bulbospinal neuron input resistance (MΩ) 615.0 ± 160.0 (48) 615.0 (MΩ) Data Table