Interaction of Aging with  in vitro Adrenocortical Responsiveness to ACTH and Cyclic AMP

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Abstract

In vitro adrenal accumulation of cyclic 3´5´-adenosine monophosphate (cyclic AMP) and release of corticosterone in response to adrenocorticotropic hormone (ACTH), cyclic AMP or theophylline was assessed in 60- and 340-day-old male rats. Adrenal tissue from mature animals secreted significantly smaller quantities of corticosterone in response to ACTH, theophylline or cyclic AMP. Additionally, mature tissue accumulated significantly less cyclic AMP after treatment with ACTH or a combination of ACTH and theophylline. The data suggest an age-related refractoriness of adrenal cortical tissue to ACTH which may in part be related to decreased availability of and/or sensitivity to cyclic AMP.

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Journal

Journal ID (publisher-id): HRE

Journal ID (nlm-ta): Horm Res Paediatr

Journal ID (doi): 10.1159/issn.1663-2818

Title: Hormone Research in Paediatrics

Publisher: S. Karger AG

ISSN (Print): 1663-2818

ISSN (Electronic): 1663-2826

Publication date Subscription-year: 1979

Publication date (Print): 1979

Publication date (Electronic): 25 November 2008

Volume: 10

Issue: 2-3

Pages: 96-103

Affiliations

Physiology Laboratories, Departments of Zoology-Entomology and Animal Science, Agricultural Experiment Station, Auburn University, Auburn, Ala

Article

Publisher ID: 178993 Other ID: Horm Res 1979;10:96–103

DOI: 10.1159/000178993

PubMed ID: 220172

SO-VID: 5315ee54-03ec-460d-a553-cec5551120b0

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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 : 17 October 1977

Date accepted : 10 April 1978

Page count

Pages: 8

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Interaction of Aging with in vitro Adrenocortical Responsiveness to ACTH and Cyclic AMP

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