“…Furthermore, learning enhances the expression of genes containing NF-κB regulatory elements, supporting a role for NF-ΚB -mediated transcriptional regulation in cognitive function (Levenson, et al, 2004;O'Sullivan, et al, 2007). The presence of certain NF-κB subunits has been characterized as a determinant in regulating CNS development and in synaptic plasticity, learning and memory, specifically implicating the p50, RelA/p65 and cRel subunits (Ahn, et al, 2008;Kaltschmidt, et al, 2006;Meffert & Baltimore, 2005;O'Riordan, et al, 2006). In addition, NF-κB subunit composition, particularly the p65:p50 heterodimer is activated by excitatory stimulation at hippocampal synapses (Kaltschmidt, et al, 1993;Meffert, et al, 2003;Suzuki, et al, 1997), a region key to learning and memory.…”