Abstract Title:

Evaluation of Lactobacillus rhamnosus strain GG for the prevention of atopic dermatitis in dogs.

Abstract Source:

Proc Natl Acad Sci U S A. 2009 Jun 30;106(26):10859-64. Epub 2009 Jun 18. PMID: 19496662

Abstract Author(s):

Rosanna Marsella

Article Affiliation:

Blanche Saunders Dermatology Laboratory, Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA.


OBJECTIVE: To evaluate the efficacy of the probiotic Lactobacillus rhamnosus strain GG for the alleviation or prevention of clinical signs of atopic dermatitis (AD) in genetically predisposed dogs. ANIMALS: 2 adult Beagles with severe AD and 16 puppies. PROCEDURES: The 2 adult Beagles were bred twice, with a year between breedings. Lactobacillus rhamnosus GG was administered to the bitch during the second pregnancy and to the puppies of the second litter from 3 weeks to 6 months of age. Both litters were epicutaneously sensitized to Dermatophagoides farinae. Blood samples were collected from puppies every 6 weeks to measure serum titers of allergen-specific IgE. At 6 months of age, all puppies underwent intradermal allergen testing and environmental challenge with D farinae. Clinical signs were scored. RESULTS: In the first litter, at 6 months of age, 7 of 7 puppies were strongly seropositive for IgE against D farinae, 6 had a positive reaction to intradermal testing, and 7 developed severe clinical signs of AD after the environmental challenge. In the second litter, 7 of 9 puppies were seropositive, 3 had a positive reaction to intradermal testing, and 6 developed dermatitis and pruritus after the challenge. The second litter had a significantly lower serum titer of allergen-specific IgE and milder reaction to intradermal testing, compared with the first litter. Clinical scores did not differ between litters. CONCLUSIONS AND CLINICAL RELEVANCE: Administration of L rhamnosus GG to puppies appeared to reduce immunologic indicators of AD, although no significant decrease in clinical signs was detected.

Study Type : Animal Study

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