Effects of Docosahexaenoic Acid and Sardine Oil Diets on the Ultrastructure of Jejunal Absorptive Cells in Adult Mice

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Abstract

The influence of docosahexaenoic acid (DHA) and sardine oil diets on the ultrastructure of jejunal absorptive cells was studied. Adult male Crj:CD-l (ICR) mice were fed a fat-free semi-synthetic diet supplemented with 5% (by weight) purified DHA ethyl ester, refined sardine oil, or palm oil. The mice received the DHA or palm oil diets for 7 days (groups 1 and 2) and the refined sardine oil or palm oil diets for 30 days (groups 3 and 4). There were significant ultrastructural changes in the jejunal absorptive cells between the mice fed on the palm oil diet and those receiving the DHA and sardine oil diets. The endoplasmic reticulum and Golgi apparatus of some jejunal absorptive cells in the mice fed on the palm oil diet for 7 and 30 days developed vacuolation on the upper site of the nucleus. In contrast, many granules, which appeared to be lip-id droplets, were observed in the endoplasmic reticulum and Golgi apparatus of the jejunal absorptive cells in the DHA and sardine oil diet groups. These results suggest that ultrastructural differences in the jejunal absorptive cells between mice in the omega-3 fatty acid and palm oil diet groups may be associated with the changes in lipid metabolism.

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Journal

Journal ID (publisher-id): ANM

Journal ID (nlm-ta): Ann Nutr Metab

Journal ID (doi): 10.1159/issn.0250-6807

Title: Annals of Nutrition and Metabolism

Publisher: S. Karger AG

ISSN (Print): 0250-6807

ISSN (Electronic): 1421-9697

Publication date Subscription-year: 1996

Publication date (Print): 1996

Publication date (Electronic): 20 November 2008

Volume: 40

Issue: 5

Pages: 263-268

Affiliations

National Food Research Institute, Ibaraki, Japan

Article

Publisher ID: 177966 Other ID: Ann Nutr Metab 1996;40:263–268

DOI: 10.1159/000177966

PubMed ID: 9001686

SO-VID: 654cf278-535f-4702-80ff-0983bee9e724

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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. 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

Date received : 21 July 1995

Date accepted : 17 January 1996

Page count

Pages: 6

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