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Effect of Lactobacillus rhamnosus GG on rBet v1 and rMal d1 specific IgA in the saliva of patients with birch pollen allergy
National Public Health Inst Helsinki ,Finland.
Skin and allergy hospital Helsinki University, Finland.
Skin and allergy hospital Helsinki University, Finland.
Valio Ltd Research Center Helsinki, Finland.
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2008 (English)In: Annals of Allergy, Asthma & Immunology, ISSN 1081-1206, E-ISSN 1534-4436, Vol. 100, no 4, 338-342 p.Article in journal (Refereed) Published
Abstract [en]

Background: Lactobacillus rhamnosus GG (LGG) has demonstrated promising results in the treatment and prevention of atopic eczema.

 

 

Objective: To study the effects of LGG on the oral immune response in adolescents and adults with birch pollen allergy combined with oral allergy syndrome.

 

 

Methods: Patients received either LGG (n = 19) or a placebo (n = 19) for 5.5 months (from February 8 to August 6, 1999), starting 2.5 months before the birch pollen season. An oral apple challenge test was performed before, during, and after the pollen season. Saliva samples were collected before and after the challenges, and serum samples were collected before the challenges. Total IgA, IgG, and IgM and rBet v1 and rMal d1 specific IgA, IgG, IgG1, and IgG4 levels were measured from saliva with an enzyme-linked immunosorbent assay (ELISA). Serum rBet v1 specific IgE ELISA and birch radioallergosorbent testing were performed.

 

 

Results: After 5.5 months, rBet v1 and rMal d1 specific IgA levels had increased from baseline in the LGG compared with the placebo group (Δ rBet v1 IgA, 0.319 vs −0.136 relative units; P = .02; Δ rMal d1 IgA, 0.097 vs −0.117, P = .02). rBet v1 specific IgE serum levels did not differ between the groups. In the LGG group, rBet v1 specific IgE levels correlated positively with stimulated total IgA (P = .04) and IgG (P = .003) in saliva. In the placebo group, rBet v1 specific IgE levels correlated negatively with stimulated rBet v1 and rMal d1 IgA levels (P = .009 for both) and IgG (P = .02 and P = .03, respectively).

 

 

Conclusion: LGG showed immunostimulating effects on oral mucosa seen as increased allergen specific IgA levels in saliva.

Place, publisher, year, edition, pages
2008. Vol. 100, no 4, 338-342 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-42376Local ID: 63340OAI: oai:DiVA.org:liu-42376DiVA: diva2:263232
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13

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