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      Functional and Non-Functional Nerve-Smooth Muscle Transmission in the Renal Arteries of the Newborn and Adult Rabbit and Guinea-Pig

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          Abstract

          Isolated renal arteries from newborn and adult guinea-pigs failed to respond to electrical stimulation of the intramural nerves, using parameters identical to those which elicit large neurogenic contractions in renal arteries from newborn and adult rabbits. The threshold stimulation frequency was lower and responses were greater in adult compared with neonatal rabbits. Comparisons of noradrenaline EC<sub>50</sub> values showed that guinea-pig renal arteries are significantly less sensitive to noradrenaline than rabbit vessels. Quantitative fluorescence histochemistry of the perivascular adrenergic nerves in renal arteries revealed that the density of innervation gradually declines in the guinea-pig but substantially increases in the rabbit during postnatal development. The lack of neurogenic response of the guinea-pig renal artery, despite the existence of a varicose, adrenergic nerve plexus, is discussed.

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          Author and article information

          Journal
          JVR
          J Vasc Res
          10.1159/issn.1018-1172
          Journal of Vascular Research
          S. Karger AG
          1018-1172
          1423-0135
          1982
          1982
          19 September 2008
          : 19
          : 5
          : 237-246
          Affiliations
          Department of Anatomy and Embryology and Centre for Neuroscience, University College London, England
          Article
          158390 Blood Vessels 1982;19:237–246
          10.1159/000158390
          985e676c-8f35-42fa-a0d3-fb9fd25248c1
          © 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
          : 21 July 1981
          : 01 December 1981
          Page count
          Pages: 10
          Categories
          Research Paper

          General medicine,Neurology,Cardiovascular Medicine,Internal medicine,Nephrology
          Innervation,Sympathetic,Noradrenaline,Renal artery,Development,Histochemistry,Neurotransmission

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