Journal article

Raloxifene blocks estradiol induction of the serotonin transporter and 5-hydroxytryptamine(2A) receptor in female rat brain

BEH Sumner, KE Grant, R Rosie, Ch Hegele-Hartung, K-H Fritzemeier, G Fink

Neuroscience Letters | ELSEVIER IRELAND LTD | Published : 2007


Sex steroids have potent effects on mood, mental state and cognition. Our previous findings and those of others suggest that these effects may be due at least in part to estradiol actions on central serotonergic mechanisms. Specifically, estradiol-17beta in its acute positive feedback mode for gonadotropin release in the female rat induces expression of the genes for the 5-hydroxytryptamine(2A) receptor (5-HT(2A)R) and the serotonin transporter (SERT) in the dorsal raphe nucleus (DRN). This is accompanied by an increase in the densities of 5-HT(2A)R and the SERT in forebrain regions which in the human are concerned with the control of mood, mental state, cognition and emotion. Here we report..

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