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Article: Differential expression of group I metabotropic glutamate receptors in functionally distinct hippocampal interneurons.

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van Hooft JA; Giuffrida R; Blatow M; Monyer H
J. Neurosci., 2000


Table 1.

Summary of the passive and active electrophysiological properties of types I, II, III, and IV interneurons

Vm (mV) Evoked spike frequency (Hz) Spike adaptation ratio AHP amplitude (mV) Capacitance (pF) Rinput (MΩ) n
Type I −55.8  ± 5.2 26.6  ± 5.5 1.16  ± 0.07 18.8  ± 2.9 63.4  ± 22.4* 382.9  ± 94.7 53
Type II −55.0  ± 6.4 30.6  ± 7.1 1.22  ± 0.09 19.9  ± 3.7 43.4  ± 24.8 365.0  ± 73.1 32
Type III −54.7  ± 4.8 56.0  ± 8.2** 1.05  ± 0.04** 18.5  ± 3.9 44.5  ± 16.4 308.9  ± 66.9 27
Type IV −57.1  ± 5.4 25.6  ± 6.7 1.19  ± 0.12 8.3  ± 3.1** 54.7  ± 15.9 351.7  ± 89.9 29
  • The evoked spike frequency was determined by injecting a 150 pA current for 1 sec, which evoked near-maximum spiking frequency in all interneuron subtypes. The spike adaptation ratio was determined by dividing the amplitude of the first spike during this period of 1 sec by the amplitude of the last spike. The afterhyperpolarizing (AHP) amplitude was determined from a spontaneous spike relative to restingV m. Asterisks indicate significant differences with the other groups (*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
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 stratum oriens regular firing calbindin-positive interneuron resting membrane potential (mV) -55.0 ± 6.4 (32) -55.0 (mV) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 stratum oriens regular firing calbindin-positive interneuron maximum firing rate (Hz) 30.6 ± 7.1 (32) 30.6 (Hz) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 stratum oriens regular firing calbindin-positive interneuron other 1.22 ± 0.09 (32) 1.22 (None) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 stratum oriens regular firing calbindin-positive interneuron AHP amplitude from resting (mV) 19.9 ± 3.7 (32) 19.9 (mV) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 stratum oriens regular firing calbindin-positive interneuron cell capacitance (pF) 43.4 ± 24.8 (32) 43.4 (pF) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 stratum oriens regular firing calbindin-positive interneuron input resistance (MΩ) 365.0 ± 73.1 (32) 365.0 (MΩ) Data Table
Hippocampus CA1 basket cell Hippocampus CA1 stratum oriens fast-spiking parvalbumin-positive chandelier cell resting membrane potential (mV) -54.7 ± 4.8 (27) -54.7 (mV) Data Table
Hippocampus CA1 basket cell Hippocampus CA1 stratum oriens fast-spiking parvalbumin-positive chandelier cell maximum firing rate (Hz) 56.0 ± 8.2 (27) 56.0 (Hz) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 oriens–alveus large regular-firing somatostatin-positive interneuron resting membrane potential (mV) -55.8 ± 5.2 (53) -55.8 (mV) Data Table
Hippocampus CA1 basket cell Hippocampus CA1 stratum oriens fast-spiking parvalbumin-positive chandelier cell other 1.05 ± 0.04 (27) 1.05 (None) Data Table
Hippocampus CA1 basket cell Hippocampus CA1 stratum oriens fast-spiking parvalbumin-positive chandelier cell AHP amplitude from resting (mV) 18.5 ± 3.9 (27) 18.5 (mV) Data Table
Hippocampus CA1 basket cell Hippocampus CA1 stratum oriens fast-spiking parvalbumin-positive chandelier cell cell capacitance (pF) 44.5 ± 16.4 (27) 44.5 (pF) Data Table
Hippocampus CA1 basket cell Hippocampus CA1 stratum oriens fast-spiking parvalbumin-positive chandelier cell input resistance (MΩ) 308.9 ± 66.9 (27) 308.9 (MΩ) Data Table
Other Hippocampus CA1 oriens–alveus interneuron resting membrane potential (mV) -57.1 ± 5.4 (29) -57.1 (mV) Data Table
Other Hippocampus CA1 oriens–alveus interneuron maximum firing rate (Hz) 25.6 ± 6.7 (29) 25.6 (Hz) Data Table
Other Hippocampus CA1 oriens–alveus interneuron other 1.19 ± 0.12 (29) 1.19 (None) Data Table
Other Hippocampus CA1 oriens–alveus interneuron AHP amplitude from resting (mV) 8.3 ± 3.1 (29) 8.3 (mV) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 oriens–alveus large regular-firing somatostatin-positive interneuron maximum firing rate (Hz) 26.6 ± 5.5 (53) 26.6 (Hz) Data Table
Other Hippocampus CA1 oriens–alveus interneuron cell capacitance (pF) 54.7 ± 15.9 (29) 54.7 (pF) Data Table
Other Hippocampus CA1 oriens–alveus interneuron input resistance (MΩ) 351.7 ± 89.9 (29) 351.7 (MΩ) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 oriens–alveus large regular-firing somatostatin-positive interneuron other 1.16 ± 0.07 (53) 1.16 (None) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 oriens–alveus large regular-firing somatostatin-positive interneuron AHP amplitude from resting (mV) 18.8 ± 2.9 (53) 18.8 (mV) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 oriens–alveus large regular-firing somatostatin-positive interneuron cell capacitance (pF) 63.4 ± 22.4 (53) 63.4 (pF) Data Table
Hippocampus CA1 oriens lacunosum moleculare neuron Hippocampus CA1 oriens–alveus large regular-firing somatostatin-positive interneuron input resistance (MΩ) 382.9 ± 94.7 (53) 382.9 (MΩ) Data Table