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Article: Modulation of synaptic transmission from primary afferents to spinal substantia gelatinosa neurons by group III mGluRs in GAD65-EGFP transgenic mice.

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Cui L; Kim YR; Kim HY; Lee SC; Shin HS; Szabó G; Erdélyi F; Kim J; Kim SJ
J. Neurophysiol., 2011


Table 1.

Membrane properties of EGFP- and nonEGFP-expressing neurons in SG

EGFP-Expressing Neurons Non-EGFP-Expressing Neurons
n 55 41
RMP, mV −61 ± 1* −56 ± 1
Membrane resistance, MΩ 805 ± 47 711 ± 44
Membrane capacitance, pF 61 ± 4* 39 ± 3
Action potential threshold, mV −36 ± 1* −30 ± 1
Action potential threshold − RMP, mV 25 ± 1 26 ± 1
Action potential width at base, ms 1.3 ± 0.1 1.4 ± 0.1
Action potential height from base, mV 79 ± 1* 61 ± 1
Rheobase, pA 39 ± 5* 134 ± 12
KA current, % 34.5 (19/55)* 70.7 (29/41)
Hyperpolarization-activated current, % 45.5 (25/55) 36.6 (15/41)

  • Values are means ± SE; n indicates the no. of spinal substantia gelatinosa (SG) neurons tested. EGFP, enhanced green fluorescent protein; RMP, resting membrane potential; KA, A-type potassium current.

  • ↵* P < 0.05, significant difference between EGFP- and non-EGFP-expressing neurons.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron cell capacitance (pF) 61.0 ± 4.0 (55) 61.0 (pF) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron cell capacitance (pF) 39.0 ± 3.0 (41) 39.0 (pF) Data Table
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron spike threshold (mV) -36.0 ± 1.0 (55) -36.0 (mV) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron spike threshold (mV) -30.0 ± 1.0 (41) -30.0 (mV) Data Table
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron spike width (ms) 1.3 ± 0.1 (55) 1.3 (ms) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron spike width (ms) 1.4 ± 0.1 (41) 1.4 (ms) Data Table
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron spike amplitude (mV) 79.0 ± 1.0 (55) 79.0 (mV) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron spike amplitude (mV) 61.0 ± 1.0 (41) 61.0 (mV) Data Table
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron rheobase (pA) 39.0 ± 5.0 (55) 39.0 (pA) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron rheobase (pA) 134.0 ± 12.0 (41) 134.0 (pA) Data Table
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron resting membrane potential (mV) -61.0 ± 1.0 (55) -61.0 (mV) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron resting membrane potential (mV) -56.0 ± 1.0 (41) -56.0 (mV) Data Table
Other substantia gelatinosa lamina 2 EGFP-expressing GAD65-expressing GABAergic inhibitory interneuron input resistance (MΩ) 805.0 ± 47.0 (55) 805.0 (MΩ) Data Table
Other substantia gelatinosa lamina 2 non-GAD65-expressing GABAergic inhibitory interneuron input resistance (MΩ) 711.0 ± 44.0 (41) 711.0 (MΩ) Data Table