GAD1 and Anxiety: To this end, we aimed here at evaluating potential regional differences in the expression of essential elements of the GABAergic system: glutamic acid decarboxylase [GAD, the principal synthesizing enzyme of GABA [32]] and GABA-A receptor subunits α2 and α3, across several amygdala nuclei (lateral, basolateral, basomedial, medial and central) in adult rats subjected to a peripuberty stress (PPS) protocol that leads to altered anxiety-like behaviors and amygdala function [9].