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Allergen avoidance and prevention of atopy

Allergen avoidance and prevention of atopy Exclusive breast feeding for 4-6 months may protect against the development of allergic diseases in early childhood and remains good advice. Convincing proof for the preventive effects of the delayed introduction of solid foods and hydrolyzed formula in formula-fed infants is lacking. There is some evidence to support a preventive effect of house dust mite allergen avoidance before sensitization occurs. The effect of exposure to animal allergen is uncertain, with some studies showing an increase in sensitization while others suggest a protective effect. Therefore, no evidence-based advice can be given at this stage regarding allergen avoidance measures to be adopted by families with infants at high risk of atopy, except perhaps to breast feed exclusively for at least 4 months. Data regarding the secondary prevention of allergic disease by allergen avoidance were more secure until the publication this year of two randomized controlled trials which suggest that mattress impermeable covers, the main dust mite allergen avoidance measure, may not work. Allergen avoidance, however, should remain an essential part of the management of allergic diseases, even if the benefit of mattress covers is in doubt. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Current Opinion in Allergy and Clinical Immunology Wolters Kluwer Health

Allergen avoidance and prevention of atopy

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Copyright
Copyright © 2004 by Lippincott Williams & Wilkins. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without either the prior written permission of the Publisher or a licence permitting restricted copying issued in the UK by the Copyright Licensing Authority and in the USA by the Copyright Clearance Center. Applications for permission should be addressed to the International Rights Department, Lippincott Williams & Wilkins, 227 East Washington Square, Philadelphia, PA 19106-380, USA, or faxed to (+1) 215 238 4419. /04.
ISSN
1528-4050
eISSN
1473-6322

Abstract

Exclusive breast feeding for 4-6 months may protect against the development of allergic diseases in early childhood and remains good advice. Convincing proof for the preventive effects of the delayed introduction of solid foods and hydrolyzed formula in formula-fed infants is lacking. There is some evidence to support a preventive effect of house dust mite allergen avoidance before sensitization occurs. The effect of exposure to animal allergen is uncertain, with some studies showing an increase in sensitization while others suggest a protective effect. Therefore, no evidence-based advice can be given at this stage regarding allergen avoidance measures to be adopted by families with infants at high risk of atopy, except perhaps to breast feed exclusively for at least 4 months. Data regarding the secondary prevention of allergic disease by allergen avoidance were more secure until the publication this year of two randomized controlled trials which suggest that mattress impermeable covers, the main dust mite allergen avoidance measure, may not work. Allergen avoidance, however, should remain an essential part of the management of allergic diseases, even if the benefit of mattress covers is in doubt.

Journal

Current Opinion in Allergy and Clinical ImmunologyWolters Kluwer Health

Published: Apr 1, 2004

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