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      Insulin-Like Growth Factors, Insulin-Like Growth Factor Binding Proteins and Ovarian Androgen Production

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          Abstract

          Increasing evidence indicates that the ovary contains an insulin-like growth factor (IGF) system complete with ligands, binding proteins, and receptors. Through their interaction with IGF receptors on theca-interstitial cell surface membranes, the ligands, IGF-I and IGF-II, synergize with luteinizing hormone (LH) to increase ovarian androgen production. The actions of these growth factors are modulated by intraovarian binding proteins, especially IGFBP-1, IGFBP-2, and IGFBP-3, that enhance or inhibit the biological actions of the IGFs. These observations suggest that the IGF system plays a role in normal ovarian function and in the pathophysiology of ovarian hyperandrogenism and polycystic ovary syndrome.

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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
          978-3-8055-6037-5
          978-3-318-00054-2
          1663-2818
          1663-2826
          1994
          1994
          05 December 2008
          : 42
          : 1-2
          : 49-54
          Affiliations
          Wyler Children’s Hospital, University of Chicago, Ill., USA
          Article
          184145 Horm Res 1994;42:49–54
          10.1159/000184145
          7525445
          © 1994 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: 6
          Categories
          Growth Factors in Endocrinology: Recent Advances, Therapeutic Prospects

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