GRIA2 and epilepsy: GluA subunits show differential spatial and temporal changes in subunit expression throughout development (Talos et al., 2006), and the GluA2/3 subunits are expressed at increased levels during postnatal development (postnatal Days 10–15) in the rat hippocampus (Arai et al., 1997), and long-term expression changes following the development of epilepsy in animal models (Friedman et al., 1994).