Coordinate Expression of Hypothalamic Pro-Dynorphin and Pro-Vasopressin mRNAs with Osmotic Stimulation

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Abstract

Peptides derived from pro-dynorphin and pro-vasopressin precursors coexist within neurosecretory vesicles of magnocellular neurons in the rat hypothalamus projecting to the posterior pituitary. The secretory activity of these neurons can be stimulated using physiological manipulations known to increase plasma vasopressin levels, such as dehydration and salt-loading. With chronic osmotic challenge, the mRNAs for both pro-dynorphin and pro-vasopressin increase in parallel in the supraoptic and paraventricular nuclei of the hypothalamus, but not within the nonmagnocellular suprachiasmatic nucleus cell groups projecting elsewhere than the neural lobe. The results indicate an example of coordinate regulation of mRNA expression for coexisting peptides within the brain.

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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: 1986

Publication date (Print): 1986

Publication date (Electronic): 01 April 2008

Volume: 44

Issue: 2

Pages: 222-228

Affiliations

^aMental Health Research Institute, University of Michigan, Ann Arbor, Mich., and ^bInstitute for Advanced Biomedical Research, Oregon Health Sciences University, Portland, Oreg., USA

Article

Publisher ID: 124649 Other ID: Neuroendocrinology 1986;44:222–228

DOI: 10.1159/000124649

PubMed ID: 2432438

SO-VID: a74d7436-f93d-44de-9eaa-c738cab67ffe

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 : 26 February 1986

Date accepted : 08 May 1986

Page count

Pages: 7

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