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The protective effect of farm milk consumption on childhood asthma and atopy: The GABRIELA study

Georg Loss*, Silvia Apprich, Marco Waser, Wolfgang Kneifel, Jon Genuneit, Gisela Bu¨chele, Juliane Weber, Barbara Sozanska, Hanna Danielewicz, Elisabeth Horak, R. J. Joost van Neerven, Dick Heederik, Peter C. Lorenzen, Erika von Mutius, Charlotte Braun-Fahrla¨nder, Andrzej Boznanski, William Cookson, Paul Cullinan, Anna Debin´ska, Martin DepnerMarkus Ege, Urs Frey, Oliver Fuchs, Anne Hyva¨rinen, Sabina Illi, Michael Kabesch, Katalin Kovacs, Aleksandra Kosmeda, Philipp Latzin, Roger Lauener, Stephanie MacNeill, Bernhard Morass, Anne Ce´cile Normand, Renaud Piarroux, Helena Rintala, Mascha K. Rochat, Nikolaos Sitaridis, David Strachan, Christine Strunz-Lehner, Bertrand Sudre, Marco Waser, Inge M. Wouters

*Korrespondierende/r Autor/-in für diese Arbeit

Abstract

Background: Farm milk consumption has been identified as an exposure that might contribute to the protective effect of farm life on childhood asthma and allergies. The mechanism of action and the role of particular constituents of farm milk, however, are not yet clear. Objective: We sought to investigate the farm milk effect and determine responsible milk constituents. Methods: In rural regions of Germany, Austria, and Switzerland, a comprehensive questionnaire about farm milk consumption and other farm-related exposures was completed by parents of 8334 school-aged children, and 7606 of them provided serum samples to assess specific IgE levels. In 800 cow's milk samples collected at the participants' homes, viable bacterial counts, whey protein levels, and total fat content were analyzed. Asthma, atopy, and hay fever were associated to reported milk consumption and for the first time to objectively measured milk constituents by using multiple regression analyses. Results: Reported raw milk consumption was inversely associated to asthma (adjusted odds ratio [aOR], 0.59; 95% CI, 0.46-0.74), atopy (aOR, 0.74; 95% CI, 0.61-0.90), and hay fever (aOR, 0.51; 95% CI, 0.37-0.69) independent of other farm exposures. Boiled farm milk did not show a protective effect. Total viable bacterial counts and total fat content of milk were not significantly related to asthma or atopy. Increased levels of the whey proteins BSA (aOR for highest vs lowest levels and asthma, 0.53; 95% CI, 0.30-0.97), α-lactalbumin (aOR for interquartile range and asthma, 0.71; 95% CI, 0.52-0.97), and β-lactoglobulin (aOR for interquartile range and asthma, 0.62; 95% CI, 0.39-0.97), however, were inversely associated with asthma but not with atopy. Conclusions: The findings suggest that the protective effect of raw milk consumption on asthma might be associated with the whey protein fraction of milk.

OriginalspracheEnglisch
ZeitschriftJournal of Allergy and Clinical Immunology
Jahrgang128
Ausgabenummer4
Seiten (von - bis)766-773
Seitenumfang8
ISSN0091-6749
DOIs
PublikationsstatusVeröffentlicht - 01.10.2011

Fördermittel

Supported by a European Union Research grant under the FP6-LifeSCIHEALTH Integrated Program LSH-2004-1.2.5-1 (contract no. 018996 ). Disclosure of potential conflict of interest: J. Weber, B. Sozanska, H. Danielewicz, A Boznanski, A. Dębińska, M. Depner, A. Kosmęda, and C. Strunz-Lehner have received research support from the European Commission . D. Heederik and I. M. Wouters have received research support from the European Union . E. von Mutius is a consultant for Novartis, GlaxoSmithKline, ALK-Abelló, and Protectimmun; has received a speaker's fee from InfectoPharm; has received research support from Airsonett AB ; is a member of the Expert Panel for UK Research Excellence Framework; and is an Associate Editor for the Journal of Allergy and Clinical Immunology. M. Ege has received research support from the European Commission and the Deutsche Forschungsgemeinschaft (DFG) . M. Kabesch has financial interests in Roxall, GlaxoSmithKline, Novartis, Sanofi-Aventis, Allergopharma, and AstraZeneca GmbH and has received research support from DFG, BMBF, and the European Union . The rest of the authors have declared that they have no conflict of interest.

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

  1. SDG 3 – Gesundheit und Wohlergehen
    SDG 3 – Gesundheit und Wohlergehen

Strategische Forschungsbereiche und Zentren

  • Forschungsschwerpunkt: Gehirn, Hormone, Verhalten - Center for Brain, Behavior and Metabolism (CBBM)

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