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      Effects of Thyroid Hormone on mRNAs of Phosphoglycerate Mutase Subunits in Rat Muscle during Development

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          Abstract

          Background: We previously showed that triiodothyronine (T3) stimulates muscle phosphoglycerate mutase (PGAM) activity and isozyme transition in rat skeletal and cardiac muscles. Methods: The effects of T3 on PGAM types B and M subunit expression in rat muscle during development are reported. Results: T3 administration during the first 21 days of rat life more than doubles type M PGAM mRNA levels, but produces minor effects on type B PGAM mRNA levels. The antihormone propylthiouracil (PTU) slightly decreases both type B and M mRNA levels, but this decrease is not statistically significant. Conclusion: Thyroid hormone influences PGAM mRNA isozyme levels differently and increases type M mRNA.

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          Most cited references6

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          Isolation and sequencing of a cDNA encoding the B isozyme of rat phosphoglycerate mutase

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            Expression of phosphoglycerate mutase mRNA in differentiating rat satellite cell cultures.

            Poly(A)+ mRNA was isolated from rat satellite cell cultures and analyzed by Northern blot analyses for mRNA content of phosphoglycerate mutase (PGAM) isozymes. In non-differentiating satellite cells only PGAM-B mRNA was detected, but when cells were differentiated into myotubes, which undergo spontaneous contraction, mRNA for PGAM-M muscle-specific isozyme was also detected. This finding is in perfect concordance with the transition of PGAM isozymes encountered in the same cell cultures, and strongly supports a transcriptional control of PGAM expression throughout myogenesis independently of nerve influence.
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              The gene encoding rat phosphoglycerate mutase subunit M: cloning and promoter analysis in skeletal muscle cells

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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
                1663-2818
                1663-2826
                2002
                2002
                29 April 2002
                : 57
                : 1-2
                : 48-52
                Affiliations
                Unitat de Bioquimica, Departament de Ciéncies Fisiològiques I, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Facultat de Medicina, Universitat de Barcelona, Spain
                Article
                57947 Horm Res 2002;57:48–52
                10.1159/000057947
                12006720
                bc27d93b-80dc-4850-994e-20fe3459c66b
                © 2002 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
                Page count
                Figures: 2, Tables: 1, References: 39, Pages: 5
                Categories
                Original Paper

                Endocrinology & Diabetes,Neurology,Nutrition & Dietetics,Sexual medicine,Internal medicine,Pharmacology & Pharmaceutical medicine
                Skeletal muscle,mRNA expression,Phosphoglycerate mutase,Thyroid hormones

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