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Article: Contribution of near-threshold currents to intrinsic oscillatory activity in rat medial entorhinal cortex layer II stellate cells.

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Boehlen A; Henneberger C; Heinemann U; Erchova I
J. Neurophysiol., 2013


Table 2.

Effects of the persistent sodium blocker losigamone and tetrodotoxin on somatic passive and active properties in layer II stellate cells

Cell PropertiesControl (Patch)Losigamone (Patch)Control (Sharp)TTX (Sharp)
RMP, mV-58.8 ± 0.6-58.0 ± 1.0 (11)-65.0 ± 0.9-64.9 ± 0.8 (5)
Rinput, MΩ-47.1 ± 2.7-47.0 ± 3.2 (11)29.4 ± 3.426.0 ± 2.6 (5)
Time constant at -100 pA, ms11.5 ± 0.713.9 ± 1.1 (11)8.3 ± 1.59.1 ± 0.6 (5)
Voltage threshold, mV-42.1 ± 0.8-36.3 ± 1.4 (11)-52.4 ± 0.7-
Rheobase, pA166.4 ± 19.2248.2 ± 30.0 (11)170.0 ± 33.5-
Spike latency, ms58.3 ± 5.848.6 ± 6.5 (11)28.6 ± 2.9-
fAHP amplitude, mV-7.0 ± 0.5-7.3 ± 0.6 (11)-9.2 ± 1.0-
DAP amplitude, mV1.7 ± 0.40.9 ± 0.3* (11)1.3 ± 0.2-
mAHP amplitude, mV-8.8 ± 0.4-8.6 ± 0.9 (11)-7.4 ± 1.3-
mAHP amplitude DAP, mV-3.6 ± 0.3-2.3 ± 0.5 (11)-2.34 ± 0.2-
mAHP duration, ms70.0 ± 7.558.8 ± 10.2 (11)32.3 ± 2.9-
AP amplitude, mV75.7 ± 1.869.4 ± 2* (8)73.4 ± 1.4-
AP time to peak, ms0.65 ± 0.030.62 ± 0.01 (8)--
AP half-width, ms0.77 ± 0.030.80 ± 0.03 (8)--
AP voltage peak, mV32.8 ± 2.130.7 ± 2.3 (8)--
No. of spikes
    At 100 pA0.3 ± 0.20 ± 0 (11)0.4 ± 0.3-
    At 200 pA3.3 ± 0.90.6 ± 0.4 (11)1.2 ± 0.4-
    At 300 pA7.4 ± 1.01.8 ± 0.5 (11)2.2 ± 0.4-
    At 400 pA10.9 ± 0.82.9 ± 0.6 (11)4.8 ± 0.9-
  • Values are means ± SE (n = no. of observations) for effects of the persistent sodium blocker losigamone (200 μM) and tetrodotoxin (TTX; 0.1 μM) on somatic passive and active properties in layer II stellate cells.

  • * P < 0.05;

  • P < 0.01;

  • P < 0.001.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Medial entorhinal cortex layer II stellate cell resting membrane potential (mV) -58.8 ± 0.6 (66) -58.8 (mV) Data Table
Medial entorhinal cortex layer II stellate cell resting membrane potential (mV) -65.0 ± 0.9 (26) -65.0 (mV) Data Table
Medial entorhinal cortex layer II stellate cell input resistance (MΩ) -47.1 ± 2.7 (66) -- Data Table
Medial entorhinal cortex layer II stellate cell input resistance (MΩ) 29.4 ± 3.4 (26) 29.4 (MΩ) Data Table
Medial entorhinal cortex layer II stellate cell membrane time constant (ms) 11.5 ± 0.7 (66) 11.5 (ms) Data Table
Medial entorhinal cortex layer II stellate cell membrane time constant (ms) 8.3 ± 1.5 (26) 8.3 (ms) Data Table
Medial entorhinal cortex layer II stellate cell spike threshold (mV) -42.1 ± 0.8 (66) -42.1 (mV) Data Table
Medial entorhinal cortex layer II stellate cell spike threshold (mV) -52.4 ± 0.7 (26) -52.4 (mV) Data Table
Medial entorhinal cortex layer II stellate cell rheobase (pA) 166.4 ± 19.2 (66) 166.4 (pA) Data Table
Medial entorhinal cortex layer II stellate cell rheobase (pA) 170.0 ± 33.5 (26) 170.0 (pA) Data Table
Medial entorhinal cortex layer II stellate cell first spike latency (ms) 58.3 ± 5.8 (66) 58.3 (ms) Data Table
Medial entorhinal cortex layer II stellate cell first spike latency (ms) 28.6 ± 2.9 (26) 28.6 (ms) Data Table
Medial entorhinal cortex layer II stellate cell fast AHP amplitude (mV) -7.0 ± 0.5 (66) 7.0 (mV) Data Table
Medial entorhinal cortex layer II stellate cell fast AHP amplitude (mV) -9.2 ± 1.0 (26) 9.2 (mV) Data Table
Medial entorhinal cortex layer II stellate cell ADP amplitude (mV) 1.7 ± 0.4 (66) 1.7 (mV) Data Table
Medial entorhinal cortex layer II stellate cell ADP amplitude (mV) 1.3 ± 0.2 (26) 1.3 (mV) Data Table
Medial entorhinal cortex layer II stellate cell medium AHP amplitude (mV) -8.8 ± 0.4 (66) 8.8 (mV) Data Table
Medial entorhinal cortex layer II stellate cell medium AHP amplitude (mV) -7.4 ± 1.3 (26) 7.4 (mV) Data Table
Medial entorhinal cortex layer II stellate cell medium AHP duration (ms) 70.0 ± 7.5 (66) 70.0 (ms) Data Table
Medial entorhinal cortex layer II stellate cell medium AHP duration (ms) 32.3 ± 2.9 (26) 32.3 (ms) Data Table
Medial entorhinal cortex layer II stellate cell spike amplitude (mV) 75.7 ± 1.8 (66) 75.7 (mV) Data Table
Medial entorhinal cortex layer II stellate cell spike amplitude (mV) 73.4 ± 1.4 (26) 73.4 (mV) Data Table
Medial entorhinal cortex layer II stellate cell spike rise time (ms) 0.65 ± 0.03 (66) 0.65 (ms) Data Table
Medial entorhinal cortex layer II stellate cell spike half-width (ms) 0.77 ± 0.03 (66) 0.77 (ms) Data Table
Medial entorhinal cortex layer II stellate cell spike peak (mV) 32.8 ± 2.1 (66) 32.8 (mV) Data Table
Medial entorhinal cortex layer II stellate cell firing frequency (pA) 0.3 ± 0.2 (66) -- Data Table
Medial entorhinal cortex layer II stellate cell firing frequency (pA) 0.4 ± 0.3 (26) -- Data Table