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      Sleep Organization in Hypo- and Hyperthyroid Rats

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          Abstract

          The relationship between thyroid hormones and mammalian sleep organization was studied in control, hypothyroid (with and without replacement therapy) and thyroxine-injected adult male rats. The results show an increased number of awakenings during slow wave sleep (SWS) in hypothyroid animals, whereas total sleep time, levels of SWS, paradoxical sleep, and diurnal organization were unaffected by thyroid status. Our findings indicate that adequate levels of thyroid hormone are necessary to sustain extended periods of SWS in the adult rat while hyperthyroid animals show no disruption of sleep organization. A corollary finding is that daily sleep quotas are independent of whole body metabolic rates.

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          Author and article information

          Journal
          NEN
          Neuroendocrinology
          10.1159/issn.0028-3835
          Neuroendocrinology
          S. Karger AG
          0028-3835
          1423-0194
          1982
          1982
          26 March 2008
          : 34
          : 6
          : 438-443
          Affiliations
          Department of Physiology-Anatomy, University of California, Berkeley, Calif., USA
          Article
          123342 Neuroendocrinology 1982;34:438–443
          10.1159/000123342
          7201573
          ec97a823-80c8-474b-8175-b87e76a3a49c
          © 1982 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
          : 10 August 1981
          : 04 December 1981
          Page count
          Pages: 6
          Categories
          Original Paper

          Endocrinology & Diabetes,Neurology,Nutrition & Dietetics,Sexual medicine,Internal medicine,Pharmacology & Pharmaceutical medicine
          Paradoxical sleep,EEG,Slow wave sleep,Hypothyroidism,Thyroid hormones,Hyperthyroidism,Thyroxine,Sleep,Thyroidectomy

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