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Article: Local circuit abnormalities in chronically epileptic rats after intrahippocampal tetanus toxin injection in infancy.

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Smith KL; Lee CL; Swann JW
J. Neurophysiol., 1998


Table 1.

Comparison of the neurophysiological properties of CA3C pyramidal cells in experimental and control rats

Control Tetanus Toxin-Injected Contralateral
n 10 10 10
Vm, mV −63.8 ± 4.2 −60.0 ± 3.5 −60.0 ± 4.1
Rm, MΩ 55.5 ± 12.4 44.0 ± 13.3 40.0 ± 10.6
Spike amp, mV 92.2 ± 12.5 90.4 ± 11.0 91.7 ± 11.4
Spike duration, Formula amplitude, ms 0.55 ± 0.08 0.54 ± 0.13 0.55 ± 0.08
Dmax, V/s 269.1 ± 46.4 254.6 ± 23.9 252.2 ± 29.7
Dmin, V/s −147.6 ± 28.4 −136.7 ± 29.0 −138.7 ± 21.6
dV/dt, ratio −1.83 ± 0.13 −1.89 ± 0.35 −1.84 ± 0.25

  • Except in n (number of cells) row, data are mean ± SD. Differences between all measures made in control and tetanus toxin-injected or contralateral hippocampus were not significant (P > 0.05).


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Hippocampus CA3 pyramidal cell input resistance (MΩ) 55.5 ± 12.4 (10) 55.5 (MΩ) Data Table
Hippocampus CA3 pyramidal cell spike amplitude (mV) 92.2 ± 12.5 (10) 92.2 (mV) Data Table
Hippocampus CA3 pyramidal cell spike half-width 0.55 ± 0.08 (10) 0.55 (ms) Data Table
Hippocampus CA3 pyramidal cell spike max rise slope (V/s) 269.1 ± 46.4 (10) 269.1 (mV/ms) Data Table
Hippocampus CA3 pyramidal cell spike max decay slope (V/s) -147.6 ± 28.4 (10) 147.6 (mV/ms) Data Table
Hippocampus CA3 pyramidal cell resting membrane potential (mV) -63.8 ± 4.2 (10) -63.8 (mV) Data Table