| LKM512 yogurt consumption improves the intestinal environment and induces the T-helper type 1 cytokine in adult patients with intractable atopic dermatitis. | |
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MedLine Citation:
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PMID: 17359386 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: In atopic dermatitis (AD) patients, the intestinal mucosal barrier function is weakened, permiting frequent invasion by antigens. Polyamines and short-chain fatty acids (SCFA) produced by intestinal bacteria are involved in the promotion of intestinal mucosal barrier functions. AIM: Our aim was to investigate the effect of pro-biotic yogurt containing Bifidobacterium animalis subsp. lactis LKM512 (LKM512 yogurt) on subjective symptoms, intestinal microbiota, intestinal bacterial metabolites (polyamines and SCFA), and T-helper type 1 (Th1)/Th2 balance in intractable AD patients. METHODS: In a double-blind, placebo-controlled, crossover study, LKM512 yogurt was given for 4 weeks to 10 adult AD patients who were diagnosed with moderate AD (four males and six females; average age, 22.1 years). The subjective symptoms were recorded after each intervention. The dynamics of fecal microbiota were analysed by the terminal-restriction fragment length polymorphism method. The effects of LKM512 yogurt on fecal polyamines, SCFA, and serum cytokines were evaluated. RESULTS: Scores of itch and burning tended to improve to a greater extent by LKM512 yogurt consumption than by placebo consumption. LKM512 yogurt (P<0.005) and placebo consumption (P<0.05) significantly increased the serum IFN-gamma concentration by six- and threefold, respectively. Fecal microbiota was altered dynamically by LKM512 yogurt consumption, in particular, the bacterial species and phylotypes of Bifidobacterium, Clostridium cluster IV and subcluster XIVa were increased in number. In addition, fecal spermidine concentration was significantly (P<0.05) increased, while fecal butyrate also tended to be increased by LKM512 yogurt consumption. CONCLUSION: We conclude that LKM512 yogurt consumption may be effective against intractable adult-type AD and this effect depends on the recovery of the intestinal mucosal barrier function and the induction of the Th1-type cytokine by polyamines and SCFA, particularly, butyrate, produced by the altered intestinal microbiota. |
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Authors:
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M Matsumoto; A Aranami; A Ishige; K Watanabe; Y Benno |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology Volume: 37 ISSN: 0954-7894 ISO Abbreviation: Clin. Exp. Allergy Publication Date: 2007 Mar |
Date Detail:
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Created Date: 2007-03-15 Completed Date: 2007-09-26 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8906443 Medline TA: Clin Exp Allergy Country: England |
Other Details:
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Languages: eng Pagination: 358-70 Citation Subset: IM |
Affiliation:
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Dairy Science and Technology Institute, Kyodo Milk Industry Co. Ltd., Hinode-cho, Tokyo, Japan. m-matsumoto@meito.co.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Bifidobacterium / metabolism* Cross-Over Studies Cytokines / immunology, metabolism* Dermatitis, Atopic / diet therapy*, immunology Digestive System / chemistry* Double-Blind Method Female Humans Male Probiotics / metabolism* Questionnaires Randomized Controlled Trials as Topic Severity of Illness Index Yogurt / microbiology* |
| Chemical | |
Reg. No./Substance:
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0/Cytokines |
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