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Effect of a Probiotic on Grass Pollen Allergic Rhinitis Subjects

2014-07-23 21:08:41 | BioPortfolio

Summary

Various studies in animals and humans have shown a potential beneficial effect of probiotics consumption on allergy. However, few studies exist that document their efficacy for upper airways allergies such as allergic rhinitis. The objective of this study is to investigate the effect of short-term oral administration of a Lactobacillus paracasei on a nasal provocation test (NPT) with grass pollen, performed out of pollen season. Adult volunteers with allergic rhinitis are enrolled in a randomized, double-blind, placebo-controlled study, based on two 4-weeks cross-over periods of product consumption (probiotic-fermented milk versus placebo), separated by a washout period of 6-8 weeks. Objective and subjective clinical parameters of NPT as well as systemic and nasal immunological parameters are compared between the two treatment periods.

Study Design

Intervention Model: Crossover Assignment

Conditions

Allergic Rhinitis

Intervention

L. paracasei fermented milk

Location

Centre Hospitalier Universitaire Vaudois
Lausanne
Switzerland
1011

Status

Completed

Source

Nestle Research Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:08:41-0400

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Medical and Biotech [MESH] Definitions

Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS.

A species of Lactobacillus that occurs in the GUT MICROBIOTA of healthy humans as well as FERMENTED DAIRY PRODUCTS and fermented vegetables. It is used as a PROBIOTIC.

Allergic reaction to milk (usually cow's milk) or milk products. MILK HYPERSENSITIVITY should be differentiated from LACTOSE INTOLERANCE, an intolerance to milk as a result of congenital deficiency of lactase.

A group of symptoms that are two- to three-fold more common in those who work in large, energy-efficient buildings, associated with an increased frequency of headaches, lethargy, and dry skin. Clinical manifestations include hypersensitivity pneumonitis (ALVEOLITIS, EXTRINSIC ALLERGIC); allergic rhinitis (RHINITIS, ALLERGIC, PERENNIAL); ASTHMA; infections, skin eruptions, and mucous membrane irritation syndromes. Current usage tends to be less restrictive with regard to the type of building and delineation of complaints. (From Segen, Dictionary of Modern Medicine, 1992)

A form of non-allergic rhinitis that is characterized by nasal congestion and posterior pharyngeal drainage.

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