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Table of Contents
Vol. 52, No. 5, 1990
Issue release date: 1990
Section title: Original Paper
Neuroendocrinology 1990;52:517–520
(DOI:10.1159/000125637)

In vitro Progesterone Modulates Amphetamine-Stimulated Dopamine Release from the Corpus striatum of Castrated Male Rats Treated with Estrogen

Dluzen D.E. · Ramirez V.D.
Department of Physiology and Biophysics, University of Illinois, Urbana, Ill., USA

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 2/6/1990
Accepted: 1/17/1990
Published online: 4/3/2008
Issue release date: 1990

Number of Print Pages: 4
Number of Figures: 0
Number of Tables: 0

ISSN: 0028-3835 (Print)
eISSN: 1423-0194 (Online)

For additional information: http://www.karger.com/NEN

Abstract

Previous work from our laboratory has indicated that a direct infusion of progesterone (P) into superfusion chambers containing corpus striatum (CS) tissue fragments of ovariectomized/estrogen-treated female rats augmented amphetamine-stimulated dopamine release in vitro. In this report, we examine whether this phenomenon is also present in the male rat. Only in castrated male rats treated with estrogen were we able to demonstrate an increase in amphetamine-stimulated dopamine release in response to a direct infusion of P. Intact and castrated male rats treated with testosterone propionate or vehicle failed to show any significant differences in response to P. These results demonstrate that the CS of male rats can respond to P only if males are exposed to an estrogenic hormonal milieu and indicate an absence of a sexually dimorphic response of the CS to P.

© 1990 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 2/6/1990
Accepted: 1/17/1990
Published online: 4/3/2008
Issue release date: 1990

Number of Print Pages: 4
Number of Figures: 0
Number of Tables: 0

ISSN: 0028-3835 (Print)
eISSN: 1423-0194 (Online)

For additional information: http://www.karger.com/NEN


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