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      Endogenous Excitatory Amino Acid Regulation of the Progesterone-Induced LH and FSH Surge in Estrogen-Primed Ovariectomized Rats

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          Abstract

          The role of endogenous excitatory amino acid neurotransmission in the regulation of progesterone and triamcinolone acetonide-induced LH and FSH release was examined. Estrogen-primed ovariectomized rats were utilized in this study. Progesterone or triamcinolone acetonide (1 mg/kg body weight) treatment led to a highly significant elevation of serum LH and FSH levels 5 h later. Treatment with the selective noncompetitive NMDA receptor antagonist, MK801, had no effect on serum LH and FSH levels when compared to estrogen controls. However, MK801 administered 1 h prior to progesterone or triamcinolone acetonide administration completely blocked their ability to induce LH and FSH surges. These studies demonstrate for the first time the involvement of endogenous excitatory amino acid neurotransmission in the mediation of progesterone and corticosteroid-induced LH and FSH surges.

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          Author and article information

          Journal
          NEN
          Neuroendocrinology
          10.1159/issn.0028-3835
          Neuroendocrinology
          S. Karger AG
          0028-3835
          1423-0194
          1991
          1991
          04 April 2008
          : 53
          : 1
          : 107-110
          Affiliations
          Department of Physiology and Endocrinology, Medical College of Georgia, Augusta, Ga., USA
          Article
          125706 Neuroendocrinology 1991;53:107–110
          10.1159/000125706
          1828545
          52f6a2a7-1491-4e13-8a9c-166ea2f968a2
          © 1991 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          History
          : 03 August 1990
          : 03 October 1990
          Page count
          Pages: 4
          Categories
          Rapid Communication

          Endocrinology & Diabetes,Neurology,Nutrition & Dietetics,Sexual medicine,Internal medicine,Pharmacology & Pharmaceutical medicine
          N-methyl-<italic>D</italic>-aspartate,Follicle-stimulating hormone,Progesterone,Luteinizing hormone,Corticosteroid

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