Description_x000D_ Application_x000D_ SL327 was used to study the role of MAPK signaling in interictal spiking and behavior of epileptic rats. It was used to study the effect of estradiol on ERK signaling in mouse dorsal hippocampus._x000D_ Packaging_x000D_ 5, 25 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ SL327 is a selective MEK1/2inhibitor (IC50 values are 0.18 and 0.22 μM for MEK1 and MEK2 respectively), which blocks hippocampal LTP in vitro. SL327 is a brain penetrant in vivo blocking fear conditioning and learning in rats, and producing neuroprotection in mice following systemic administration.