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. 1998 Sep 1;18(17):6963–6976. doi: 10.1523/JNEUROSCI.18-17-06963.1998

Fig. 3.

Fig. 3.

Reduction of NA-induced synaptic currents by tetrodotoxin (TTX). A, NA-induced increase of GABAergic currents was not observed in a solution containing TTX (0.5 μm) and CNQX/APV. B, Dose dependency of NA (3–50 μm)-induced increase of IPSC frequency and its reduction by TTX. The effects of NA are normalized as a percentage of control values. The error bars represent SEM. The numbers of cells investigated are given in parentheses. The effects of NA (10 μm) in the presence or absence of TTX were compared using Mann–Whitney U test. *p < 0.05.