Effect of a new synbiotic mixture on atopic dermatitis in infants: a randomized-controlled trial
- PMID: 20184604
- DOI: 10.1111/j.1365-2222.2010.03465.x
Effect of a new synbiotic mixture on atopic dermatitis in infants: a randomized-controlled trial
Abstract
Background: Clinical trials investigating the therapeutic effect of probiotics on atopic dermatitis (AD) show inconsistent results. Better results can possibly be achieved by combining probiotics with prebiotics, i.e. synbiotics.
Objective: To investigate the therapeutic effect of a synbiotic mixture on the severity of AD in infants.
Methods: In a double-blind, placebo-controlled multi-centre trial, 90 infants with AD [SCORing Atopic Dermatitis (SCORAD) score > or =15], aged < 7 months and exclusively formula fed, were randomly assigned to receive either an extensively hydrolysed formula with Bifidobacterium breve M-16V and a galacto-/fructooligosaccharide mixture (Immunofortis), or the same formula without synbiotics for 12 weeks. The primary outcome was severity of AD, assessed using the SCORAD index. A secondary outcome measure was intestinal microbiota composition.
Results: There was no difference in SCORAD score improvement between the synbiotic and the placebo group. The synbiotic group did have a significantly higher percentage of bifidobacteria (54.7% vs. 30.1%, P<0.001) and significantly lower percentages of Clostridium lituseburense/Clostridium histolyticum (0.5 vs. 1.8, P=0.02) and Eubacterium rectale/Clostridium coccoides (7.5 vs. 38.1, P<0.001) after intervention than the placebo group. In the subgroup of infants with IgE-associated AD (n=48), SCORAD score improvement was significantly greater in the synbiotic than in the placebo group at week 12 (-18.1 vs. -13.5 points, P=0.04).
Conclusions: This synbiotic mixture does not have a beneficial effect on AD severity in infants, although it does successfully modulate their intestinal microbiota. Further randomized-controlled trials should explore a possible beneficial effect in IgE-associated AD.
Comment in
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Probiotics, prebiotics and synbiotics: a hope or hype in allergy?Clin Exp Allergy. 2010 May;40(5):694-6. doi: 10.1111/j.1365-2222.2010.03471.x. Clin Exp Allergy. 2010. PMID: 20447081 No abstract available.
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