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Molecular Biology for the Endocrinologist:New Insights into Aetiology and Prognosis

Novel Insights into the Aetiology and Pathogenesis of Hypopituitarism

Dattani M.T.

Author affiliations

Department of Paediatric Endocrinology, Institute of Child Health, London, UK

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Horm Res 2004;62(suppl 3):1–13

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Article / Publication Details

First-Page Preview
Abstract of Molecular Biology for the Endocrinologist:New Insights into Aetiology and Prognosis

Published online: November 17, 2004
Issue release date: October 2004

Number of Print Pages: 13
Number of Figures: 0
Number of Tables: 1

ISSN: 1663-2818 (Print)
eISSN: 1663-2826 (Online)

For additional information: http://www.karger.com/HRP

Abstract

Recent advances in our knowledge of pituitary development, acquired mainly from animal models, have enhanced our understanding of the aetiology of isolated growth hormone deficiency (IGHD) and combined pituitary hormone deficiency (CPHD), as well as several syndromic forms of growth hormone deficiency (GHD). A number of developmental genes known to be important for organ commitment and cell differentiation and proliferation (HESX1, LHX3, LHX4, PROP1 and PIT1) have been implicated in CPHD with or without other syndromic features. Phenotypes associated with these genetic mutations and their inheritance may be highly variable. Functional analyses of these mutations reveal valuable insights into the function of the proteins and hence into the effect of these mutations on phenotype. Novel insights have been gained into the mechanisms whereby these genes are associated with particular phenotypes as a result of murine transgenesis, e.g. type II autosomal dominant GHD. Mutations within known genes account for a small proportion of cases of IGHD and CPHD, suggesting the role of other as yet unidentified genetic and environmental factors. Hence, genetic testing will in the future have a greater role to play in understanding the mechanisms leading to particular hypopituitary phenotypes and also in predicting the evolution of these disorders. There is, however, no substitute for careful delineation of the phenotype prior to undertaking genetic studies.

© 2004 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Molecular Biology for the Endocrinologist:New Insights into Aetiology and Prognosis

Published online: November 17, 2004
Issue release date: October 2004

Number of Print Pages: 13
Number of Figures: 0
Number of Tables: 1

ISSN: 1663-2818 (Print)
eISSN: 1663-2826 (Online)

For additional information: http://www.karger.com/HRP


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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 or, in the case of photocopying, direct payment of a specified fee to the Copyright Clearance Center.
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.
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