Chronic Sodium or Chloride Depletion Upregulates Angiotensin II Receptors in the Anterior Pituitary Lobe of Young Rats

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Abstract

The effect of chronic (35 days) and selective sodium or chloride depletion on the regulation of angiotensin II receptors in the anterior pituitary gland of young male rats was studied by quantitative autoradiography. Both chronic sodium or chloride depletion produced significant extracellular fluid volume contraction, stimulation of the circulating renin-angiotensin system and increased the number of angiotensin II receptors in the anterior pituitary gland. Changes in angiotensin II receptors in both sodium- and chloride-depleted animals were associated with increased plasma prolactin levels. Our results suggest a participation of the pituitary renin-angiotensin system in the physiological response and/or possible adaptation to chronic sodium or chloride depletion. Extracellular fluid volume contraction and profound chronic stimulation of the circulating renin-angiotensin system may contribute to regulate anterior pituitary angiotensin II receptors and may influence prolactin release.

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Author and article information

Journal

Journal ID (publisher-id): NEN

Journal ID (nlm-ta): Neuroendocrinology

Journal ID (doi): 10.1159/issn.0028-3835

Title: Neuroendocrinology

Publisher: S. Karger AG

ISSN (Print): 0028-3835

ISSN (Electronic): 1423-0194

Publication date Subscription-year: 1991

Publication date (Print): 1991

Publication date (Electronic): 04 April 2008

Volume: 53

Issue: 6

Pages: 556-561

Affiliations

Section on Pharmacology, Laboratory of Clinical Science, National Institute of Mental Health, Bethesda, Md.; Department of Nephrology, Children’s National Medical Center, Washington, D.C., USA

Article

Publisher ID: 125774 Other ID: Neuroendocrinology 1991;53:556–561

DOI: 10.1159/000125774

PubMed ID: 1876234

SO-VID: 54d87ab0-36dc-45dc-81cf-e6a12dd880f5

License:

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

Date received : 12 March 1990

Date accepted : 23 October 1990

Page count

Pages: 6

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