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. 2017 Feb 2;7:41439. doi: 10.1038/srep41439

Figure 3. GABAergic transmission in the VB in chronic inflammatory pain revealed by whole-cell patch clamp recording.

Figure 3

(A) Representative synaptic GABAARs-mediated mIPSC traces in thalamic relay neurons in the control (normal saline, n = 16 cells), CFA-1D (n = 14 cells) and CFA-7D (n = 20 cells) groups. (B) Similar amplitudes of mIPSCs in three groups. (C) Compared with the control group, the frequency of mIPSCs remained unchanged in the CFA-1D group, but significantly increased in the CFA-7D group. (D) Representative IPSC pairs evoked by paired-pulse stimulations with a 50-ms interval in the control (n = 7 cells) and CFA-7D (chronic inflammatory pain, n = 9 cells) groups. (E) Increased paired-pulse ratios (PPRs = IPSC2nd/IPSC1st) induced by paired-pulse stimulation with 25-, 50-, 100- or 200-ms intervals in the CFA-7D group. Error bars indicated SEMs. *P < 0.05, **P < 0.01, one-way ANOVA with Tukey post-test for mIPSCs and two-way ANOVA with Bonferroni post-test for PPR analysis.