CCL2 and Anxiety: To test whether CeA projection neurons contain CCL2, retrograde fluorescent nanobeads were injected into two brain regions associated with anxiety-like behavior the BNST (Gungor and Paré, 2016; Shackman and Fox, 2016) and the VPAG (Bertotto et al., 2010; Bonassoli et al., 2011, 2013).