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No effect of probiotics on respiratory allergies: a seven-year follow-up of a randomized controlled trial in infancy
Linköping University, Department of Clinical and Experimental Medicine, Pediatrics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center of Paediatrics and Gynaecology and Obstetrics, Department of Paediatrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Pediatrics. Linköping University, Faculty of Health Sciences.
Karolinska Institute, Sweden.
County Hospital Ryhov, Sweden.
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2013 (English)In: Pediatric Allergy and Immunology, ISSN 0905-6157, E-ISSN 1399-3038, Vol. 24, no 6, 556-561 p.Article in journal (Refereed) Published
Abstract [en]

Background

Supplementation with the probiotic Lactobacillus reuteri reduced the incidence of IgE-associated allergic disease in infancy. This treatment might therefore also reduce the risk of asthma and allergic rhinoconjunctivitis in school age.

Objective

To evaluate whether perinatal and infant supplementation with L. reuteri reduced the prevalence of respiratory allergic disease in school age and to explore whether this supplementation was associated with any long-term side effects.

Methods

A randomized, placebo-controlled trial with oral supplementation with Lreuteri ATCC 55730 (1 × 108 CFU) during the last month of gestation and through the first year of life comprising 232 families with allergic disease, of whom 184 completed a 7-yr follow-up. The primary outcomes at 7 yr of age were allergic disease and skin prick test reactivity (ClinicalTrials.gov ID NCT01285830).

Results

The prevalence of asthma (15% in the probiotic vs. 16% in placebo group), allergic rhinoconjunctivitis (27% vs. 20%), eczema (21% vs. 19%) and skin prick test reactivity (29% vs. 26%) was similar in the probiotic and placebo group. Growth indices and gastrointestinal symptoms were similar in the two groups. No severe adverse events were reported.

Conclusion

The effect of L. reuteri on sensitization and IgE-associated eczema in infancy did not lead to a lower prevalence of respiratory allergic disease in school age. Thus, the effect of L. reuteri on the immune system seems to be transient. Administration of L. reuteri during the last weeks of gestation and in infancy was not associated with any long-term side effects.

Place, publisher, year, edition, pages
Wiley-Blackwell , 2013. Vol. 24, no 6, 556-561 p.
Keyword [en]
allergic rhinoconjunctivitis, asthma, children, eczema, fractional exhaled nitric oxide, prevention, probiotics, randomized, sensitization, skin prick test
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-97655DOI: 10.1111/pai.12104ISI: 000323645500007OAI: oai:DiVA.org:liu-97655DiVA: diva2:650000
Available from: 2013-09-19 Created: 2013-09-19 Last updated: 2017-12-06

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Abrahamsson, ThomasJenmalm, Maria

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