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Effect of Lactobacillus rhamnosus GG and vitamin D supplementation on the immunologic effectiveness of grass-specific sublingual immunotherapy in children with allergy

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Background:

An important issue in sublingual immunotherapy (SLIT) is how to improve efficacy.

Objective:

To compare the clinical and immunologic efficacy of SLIT given alone and, to enhance clinical efficacy, given with probiotic or vitamin D supplementation.

Methods:

One hundred children, ages 5‐12 years, sensitive to grass pollen, with allergic rhinitis participated in a 5-month prospective, randomized, double-blind, placebo-controlled trial. Children received 5-grass SLIT 300 IR tablets with either vitamin D 1000 IU daily supplementation, probiotic, or placebo. The control group included children with allergy who did not qualify for immunotherapy. Primary end points included a symptom-medication score, lung function, and exhaled nitric oxide concentration. The secondary end point was the immunologic efficacy measured by the following: CD4+CD25+Foxp3+ (forkhead box P3) cells, Toll-like receptor (TLR) 4, interleukin (IL) 1, IL-6, tumor necrosis factor, IL-10, and transforming growth factor β-1 levels in cell culture supernatants.

Results:

Reduction in the symptom-medication score and improvement in lung function as well as a significant increase in the percentage of CD4+CD25+Foxp3+ in children who received SLIT in all the groups were observed compared with control group. In the SLIT-probiotic group, between-group analysis showed significantly higher CD4+CD25+Foxp3+ induction compared with the SLIT group and higher reduction in the percentage of TLR-positive cell group compared with the SLIT‐vitamin D group (Fig. 1). An increase in CD4+CD25+Foxp3+ induction, reduction in TLR-positive cells recruitment and an increase in transforming growth factor β-1 production were independently associated with a better clinical effect of SLIT in children.

Conclusions:

We demonstrated the clinical and immunologic effect of probiotic and vitamin D supplementation on SLIT. Probiotic supplementation showed better clinical and immunologic response in children with allergic rhinitis.
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Keywords: Sublingual immunotherapy; allergic rhinitis; children; probiotic supplementation; vitamin D supplementation

Document Type: Research Article

Affiliations: Department of Social Pediatrics and Allergy, N Copernicus Hospital, Medical University of Lodz, Lodz, Poland

Publication date: 01 July 2016

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  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma and by having the potential to directly impact the quality of patient care. AAP welcomes the submission of original works including peer-reviewed original research and clinical trial results. Additionally, as the official journal of the Eastern Allergy Conference (EAC), AAP will publish content from EAC poster sessions as well as review articles derived from EAC lectures.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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