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Article: Long-term potentiation of synaptic response and intrinsic excitability in neurons of the rat medial vestibular nuclei.

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Pettorossi VE; Dieni CV; Scarduzio M; Grassi S
Neuroscience, 2011


Table 3Values of EPSP, IE and AP (mean±SD) before and after HFS in type-A and type-B neurons in the presence of antagonists for NMDAR (AP-5), AMPAR (NBQX) and mGluR1(CPCCOEt)
Type-A neurons
AP-5 (n=5)AP-5+NBQX(n=0)CPCCOEt (n=2)
ControlHFSControlHFS
EPSP
Amplitude (mV)3.2±1.23.2±1.22.8±0.13.5±0.07
Slope (mV/ms)0.64±0.120.64±0.120.44±0.0020.55±0.01
Decay time constant τ (ms)50.4±12.350.4±12.344.9±0.654.5±1.9
AP-5 (n=4)AP-5+NBQX (n=3)CPCCOEt (n=4)
ControlHFSControlHFSControlHFS
IE
SF (spikes/s)2.5±0.43.3±0.62.6±0.53.1±0.42.8±1.20.4±0.1
EF (spikes)12.2±3.519.5±5.712.1±1.116.8±3.312.3±6.23±1.8
Rin (MΩ)640.4±37.1716.7±4.4640±9.1749.4±66.3639.9±57.1160.1±30.3
AP
AHP amplitude (mV)−20.3±1.3−17.4±3.4−20.2±1.2−17.5±1.8−20.3±0.6−22.6±1.2
ISS (mv/s)50.75±2.457.4±3.252.6±454.34±3.956.86±3.19.04±2.4
Type-B neurons
AP-5 (n=7)AP-5+NBQX (n=0)CPCCOEt (n=4)
ControlHFSControlHFSControlHFS
EPSP
Amplitude (mV)4.92±1.24.92±1.24.2±0.35.8±0.4⁎
Slope (mV/ms)1.16±0.51.18±0.51.25±0.11.63±0.1⁎
Decay time constant τ (ms)15.3±5.415.3±5.418.6±0.425.3±2⁎
AP-5 (n=7)AP-5+NBQX (n=3)CPCCOEt (n=3)
ControlHFSControlHFSControlHFS
IE
SF (spikes/s)5.4±1.378.2±3.7⁎5.5±1.88.6±4.1⁎4.8±2.52.1±1.5⁎
EF (spikes)13.7±2.525±4.713.6±1.224.3±4.812.6±4.88.2±5.3⁎
Rin (MΩ)271.7±38.5366.4±50237.8±50.6330.7±90.7270.6±12.4189.5±37⁎
AP
AHP amplitude (mV)−16.9±0.7−13.6±1.9−16.8±0.9−13.7±1.3−16.8±1.6−19.5±3.2
ISS (mv/s)110.5±5.5138.3±9.3⁎110±11.3151.8±14.2⁎49.1±3.7⁎
⁎Indicates significant difference (ANOVA and Tukey's post hoc test, P<0.05) in the change induced by HFS between type-A and type-B neurons.

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