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      Pharmacological Testing of Growth Hormone Secretion

      ,

      Hormone Research in Paediatrics

      S. Karger AG

      Growth hormone tests, Growth hormone deficiency

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          Abstract

          The laboratory confirmation of growth hormone (GH) deficiency (GHD) has been extensively studied. Multiple stimuli induce GH release, but insulin-induced hypoglycemia usually is considered the ‘gold standard’. Seventy-five to 90% of normal children have significant increments of hGH to any single test. Complete and partial syndromes of GHD have been defined, but some patients with a clinical appearance of GHD release hGH during provocative testing. Discordant results on varied tests may occur in the same child. Sequential and simultaneous tests have been attempted with diverse time patterns; testing sequence may significantly affect data interpretation. Persistent problems with GH provocative tests remain: normal data not strictly defined throughout childhood, multiple tests with discordant results, and substantial discrepancies of immunopotency estimates with different radioimmunoassays. Some children with ‘normal’ hGH increments during provocative tests, despite clinical GHD, may require short-term treatment with hGH to finally establish the diagnosis.

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          Author and article information

          Journal
          HRE
          Horm Res Paediatr
          10.1159/issn.1663-2818
          Hormone Research in Paediatrics
          S. Karger AG
          978-3-8055-5289-9
          978-3-318-01976-6
          1663-2818
          1663-2826
          1990
          1990
          02 December 2008
          : 33
          : 2-4
          : 121-127
          Affiliations
          Department .Pof Pediatrics, Baystate Medical Center, Tufts University School of Medicine, Springfield, Mass., USA
          Article
          181495 Horm Res 1990;33:121–127
          10.1159/000181495
          2210616
          © 1990 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.

          Page count
          Pages: 7
          Categories
          IV. Update on Growth Hormone Therapy

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