Effects of TRH, cyclo-(His-Pro) and (3-Me-His2)TRH on identified septohippocampal neurons in the rat.


Neurons located in the medial septum-nucleus of the diagonal band of Broca (vertical limb) and antidromically activated by electrical stimulation of the fimbria were recorded in urethane anesthetized rats. Forty-three percent of these septohippocampal neurons (SHNs) were excited by the iontophoretic application of thyrotropin-releasing hormone (TRH… (More)