Oncology
Effect of Pyridoxine on the Growth of Morris Hepatoma No. 7288Ctc and Enzyme ActivityTryfiates G.P.West Virginia University School of Medicine, Department of Biochemistry, Morgantown, West Virginia
|
|
Log in to MyKarger to check if you already have access to this content.
KAB
Buy a Karger Article Bundle (KAB) and profit from a discount!
If you would like to redeem your KAB credit, please log in.
Save over 20% compared to the individual article price.
Article / Publication Details
Published online: June 09, 2009
Issue release date: 1976
Number of Print Pages: 3
Number of Figures: 0
Number of Tables: 0
ISSN: 0030-2414 (Print)
eISSN: 1423-0232 (Online)
For additional information: https://www.karger.com/OCL
Abstract
The effect(s) of lack of dietary pyridoxine (PX) on the growth of Morris hepatoma no. 7288Ctc was studied. Buffalo strain female rats were fed a diet lacking PX. Pair-fed controls were fed the same diet with PX added. Animals were inoculated with no. 7288Ctc hepatoma cells at 21 days and were sacrificed 16 days later. Host livers and tumors were removed, weights recorded and the activity of tyrosine aminotransferase (TAT; L-tyrosine: 2-oxoglutarate aminotransferase, EC 2.6.1.5) was determined in both host liver and hepatoma. The average weight of 30 hepatomas grown in pair-fed control rats was 11.61 ± 1.5 g while the average weight of the same number of hepatomas grown in animals fed the PX free diet was 4.73 ± 0.7 g (P < 0.001). Further TAT specific activity levels were 39% and 32% higher in host livers and tumors from deficient animals, respectively. The results show that availability of dietary pyridoxine stimulates the growth of this hepatoma and, in addition, exercises a type of control over the expression of TAT activity.
© 1976 S. Karger AG, Basel
Related Articles:
Article / Publication Details
Published online: June 09, 2009
Issue release date: 1976
Number of Print Pages: 3
Number of Figures: 0
Number of Tables: 0
ISSN: 0030-2414 (Print)
eISSN: 1423-0232 (Online)
For additional information: https://www.karger.com/OCL
Copyright / Drug Dosage / Disclaimer
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.

Get Permission