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Article: Altered intrinsic excitability of hippocampal CA1 pyramidal neurons in aged PDAPP mice.

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Tamagnini F; Novelia J; Kerrigan TL; Brown JT; Tsaneva-Atanasova K; Randall AD
Front Cell Neurosci, 2015


Passive membrane properties of CA1-PCs in hippocampal slices from 20 to 23 month old PDAPP mice and age-matched WT littermate controls.

WT n = 27 PDAPP n = 30
Property Average SEM Average SEM p
RMP (mV) -76.7 (n = 28) 1.9 -76.3 1.2 0.88
Rin-ss (MΩ) 79.8 6.5 97.1 6.7 0.07
Rin-exp (MΩ) 100.2 8.0 119.9 7.3 0.08
sag_sub (%) 17.2 1.2 17.3 1.1 0.96
sag_fit (%) 20.2 1.5 19.3 1.7 0.69
Rebound (mV) 1.6 0.1 4.2 2.5 0.33
tau (ms) 16.2 1.1 15.4 1.0 0.57
Capacitance (pF) 177.2 13.4 137.4 8.8 0.01

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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Hippocampus CA1 pyramidal cell input resistance (MΩ) 100.2 (27) 100.2 (MΩ) Data Table
Hippocampus CA1 pyramidal cell resting membrane potential (mV) -76.7 (27) -76.7 (mV) Data Table
Hippocampus CA1 pyramidal cell sag ratio 20.2 (27) 0.202 (ratio) Data Table
Hippocampus CA1 pyramidal cell membrane time constant (ms) 16.2 (27) 16.2 (ms) Data Table
Hippocampus CA1 pyramidal cell cell capacitance (pF) 177.2 (27) 177.2 (pF) Data Table