Journal
ALLERGY
Volume 66, Issue 4, Pages 509-516Publisher
WILEY
DOI: 10.1111/j.1398-9995.2010.02507.x
Keywords
breast milk; cord blood; eczema; immune; pregnancy; probiotic
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Funding
- Jack Brockhoff Foundation
- Murdoch Children's Research Institute
- Australian National Health and Medical Research Council
- Ilhan Food Allergy Foundation
- University of Melbourne
- National Institute for Health Research Comprehensive Biomedical Research Centre
- Ministry of Higher Education, Malaysia
- Universiti Putra Malaysia
- Applied Biosciences Graduate School
- Elintarvikkeiden Tutkimussaatio, Finland
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P>Background: Probiotic supplementation in early life may be effective for preventing eczema. Previous studies have suggested that prenatal administration may be particularly important for beneficial effects. Objective: We examined whether prenatal treatment with the probiotic Lactobacillus rhamnosus GG (LGG) can influence the risk of eczema during infancy. Methods: We recruited 250 pregnant women carrying infants at high risk of allergic disease to a randomized controlled trial of probiotic supplementation (LGG 1.8 x 1010 cfu/day) from 36 weeks gestation until delivery. Infants were assessed during their first year for eczema or allergic sensitization. Immunological investigations were performed in a subgroup. Umbilical cord blood was examined for dendritic cell and regulatory T cell numbers and production of TGF beta, IL-10, IL-12, IL-13, IFN-gamma and TNF alpha. Maternal breast milk was examined for total IgA, soluble CD14 and TGF beta. Results: Prenatal probiotic treatment was not associated with reduced risk of eczema (34% probiotic, 39% placebo; RR 0.88; 95% CI 0.63, 1.22) or IgE-associated eczema (18% probiotic, 19% placebo; RR 0.94; 95% CI 0.53, 1.68). Prenatal probiotic treatment was not associated with any change in cord blood immune markers, but was associated with decreased breast milk soluble CD14 and IgA levels. Conclusions: Prenatal treatment with Lactobacillus rhamnosus GG was not sufficient for preventing eczema. If probiotics are effective for preventing eczema, then a postnatal component to treatment or possibly an alternative probiotic strain is necessary.
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