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Article: Hyperexcitability, interneurons, and loss of GABAergic synapses in entorhinal cortex in a model of temporal lobe epilepsy.

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Kumar SS; Buckmaster PS
J. Neurosci., 2006


Table 1.

Frequency and amplitude of PSCs in layer II stellate cells and interneurons in layer III of the medial entorhinal cortex in control and epileptic rats

Control Epileptic
Layer II stellate cells
    sIPSCs (n = 30) (n = 22)
        Frequency (Hz) 21.3 ± 1.4 12.2 ± 0.8****
        Amplitude (pA) 26.3 ± 0.9 25.7 ± 0.8
    mIPSCs (n = 23) (n = 20)
        Frequency 14.4 ± 1.4 8.6 ± 0.8**
        Amplitude 21.2 ± 1.0 22.1 ± 0.8
    sEPSCs (n = 21) (n = 17)
        Frequency 1.7 ± 0.3 4.5 ± 0.8***
        Amplitude 11.5 ± 0.7 11.6 ± 0.7
    mEPSCs (n = 10) (n = 8)
        Frequency 1.5 ± 0.4 0.8 ± 0.2
        Amplitude 9.8 ± 0.6 9.8 ± 0.7
Layer III interneurons
    Type I sEPSCs (n = 13) (n = 7)
        Frequency 13.7 ± 2.0 18.1 ± 2.2
        Amplitude 25.2 ± 1.9 28.8 ± 2.5
    Type II sEPSCs (n = 11) (n = 7)
        Frequency 2.9 ± 1.2 3.2 ± 1.4
        Amplitude 13.7 ± 1.0 14.9 ± 1.6

  • Values are mean ± SEM. The total number of cells tested (n) is indicated. Statistically significant differences between epileptic and control groups are indicated:

  • ↵**p < 0.005,

  • ↵***p < 0.001,

  • ↵****p < 0.0001, t test.


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