Lactobacillus GG treatment during pregnancy for the prevention of eczema: a randomized controlled trial
Lactobacillus GG treatment during pregnancy for the prevention of eczema: a randomized controlled trial
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DOI:
10.1111/j.1398-9995.2010.02507.x
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发表时间:
2011-04-01
期刊:
影响因子:
12.4
通讯作者:
Tang, M. L. K.
中科院分区:
文献类型:
--
作者:
Boyle, R. J.;Ismail, I. H.;Tang, M. L. K.
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.