Immunohistochemical Localization of GRF-Containing Neurons in Rat Brain

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Abstract

Brains from 4 normal and 4 colchicine-treated rats were studied for the presence of growth hormone-releasing factor (GRF) using an antibody directed against rat hypothalamic GRF (rGRF). Noncolchicine-treated animals showed intense staining in the external layer of the median eminence. Rats pretreated with intraventricular colchicine for 48 h showed localization of GRF-containing cell bodies in the arcuate nucleus, the perifornical area, the lateral basal hypothalamic region and lateral to the ventromedial nucleus and the premammillary nucleus. This pattern of distribution is consistent with the postulated role of GRF in hypothalamic regulation of growth hormone secretion. Our results confirm the predominant localization of GRF perikarya in the arcuate nucleus of the rat which has been noted in studies using antibodies directed against both human pancreas GRF (hpGRF) and rGRF, and demonstrate a unique pattern of rGRF-positive cell bodies elsewhere in the hypothalamus. No rGRF perikarya or processes were seen outside the hypothalamus.

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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: 42

Issue: 2

Pages: 143-147

Affiliations

Division of Endocrinology, Department of Medicine, University of Colorado Health Sciences Center, Denver, Colo., USA

Article

Publisher ID: 124265 Other ID: Neuroendocrinology 1986;42:143–147

DOI: 10.1159/000124265

PubMed ID: 3081825

SO-VID: 921b0b78-f71d-4b65-95cc-8859e4d922e1

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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 : 29 November 1984

Date accepted : 21 March 1985

Page count

Pages: 5

Immunohistochemical Localization of GRF-Containing Neurons in Rat Brain

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Karger: Endocrinology

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