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. 2011 Oct 14;6(10):e26065. doi: 10.1371/journal.pone.0026065

Figure 8. D1 receptor-dependent reduction of the threshold of LTP induction requires calcium influx, and induction of the cAMP-PKA and MEK-MAPK signaling cascades.

Figure 8

A) Inclusion of the calcium chelator, BAPTA (10 mM) in the patch pipette (n = 5) abolished the GBR12783 mediated LTP induction by 2xHFS. B) Inclusion of the PKA inhibitor, KT5720 (100 nM) (n = 5) also blocked the GBR12783 mediated LTP induction by 2xHFS. C) Bar chart summarizing the group effects of GBR12783 on LTP induction using 2xHFS. As illustrated, pretreatment with SCH23390 (black bar), BAPTA (hooped bar), KT5720 (diagonal bar), and U0126 (hatched bar) all fully blocked the GBR12783-facilitated LTP (n = 5 in each case). ** P<0.01. Error bars indicate SEM.