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. 2014 Mar 28;8:88. doi: 10.3389/fncel.2014.00088

FIGURE 7.

FIGURE 7

GABAARs in radially migrating neurons are activated by endogenous taurine. (A) Typical trace of a GABAAR-mediated tonic current in an RFP-positive cell in the SP under normal conditions. VH was -60 mV. (B) SR95531-sensitive inward current induced by the application of GES. The baseline currents immediately before (for 5 s) the initiation and the cessation of SR95531 application were averaged, to determine the tonic currents based on their difference. (C) Averaged tonic current amplitudes before and after GES application. There were no significant differences between the GAD67+/+ (n = 5) and GAD67GFP/GFP (n = 5) mice. (D) HPLC measurements of the taurine concentrations in the cortical slice incubation medium either without (Control, n = 5) or with GES (300 μM, n = 4). Error bar: mean ± SEM. *P < 0.01.