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. 2009 Dec 21;4(12):e8366. doi: 10.1371/journal.pone.0008366

Table 1. Changes in intrinsic membrane properties of PCs by prolonged application of low and high dose Aβ42.

Aβ42 (1 nM, n = 8) Aβ42 (500 nM, n = 7)
ctrl ctrl
Resting membrane potential (mV) −64.6±2.1 −61.5±2.4 −66.7±2.5 −66.0±2.8
AP analysis
Threshold (mV) −49.4±1.3 −44.1±1.9* −49.1±1.0 −52.5±1.0*
AP_amplitude (mV) 62.5±9.8 55.4±9.2 68.9±5.8 60.7±11.2
AP_half_duration (ms) 2.1±0.3 2.3±0.4 2.2±0.1 1.8±0.4
AP_rise_rate (mV/ms) 39.4±6.1 35.9±6.6 45.1±4.6 38.8±8.0
AHP Analysis
Max_fall_rate (mV/ms) −11.4±2.8 −17.0±2.1$ −21.1±5.0 −20.0±5.0$
Max_rise_rate (mV/ms) 32.2±6.1 47.3±4.6$ 51.5±9.2 47.8±9.1$
*

p<0.05.

$

Net change (Aβ - ctrl) is statistically significant (p<0.05; see Fig. 7D).

Note 1: During application of Aβ, AP and AHP were recorded while clamping membrane potential at the same level as control.

Note 2: Data are mean±SE. (For the data of mean±SD, please see Table S2).