کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6123917 | 1219954 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of culture-independent analysis to reveal alteration of intestinal microflora by heat-killed Lactobacillus pentosus in a mouse model of endogenous sepsis
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
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چکیده انگلیسی
In this study we evaluated alteration of intestinal microflora by terminal-restriction fragment length polymorphism (T-RFLP) analysis and quantitative PCR (qPCR) for specific microbes. The effects of orally administered heat-killed Lactobacillus pentosus strain b240 (HK-b240) in immunosuppressed mice with endogenous Pseudomonas aeruginosa sepsis was estimated. By T-RFLP analysis, 5 dominant operational taxonomic units (OTUs) including Bacteroides spp. (OTU460) and Lactobacillus spp. (OTU657) were consistently observed, irrespective of treatment, at all time points. A significantly higher population of segmented filamentous bacteria (SFB) was observed by qPCR after 3Â weeks of HK-b240 administration; thereafter, the difference was not sustained during immunosuppression and progression of sepsis. Although not significant, Lactobacillus spp. accounted for a larger population in the HK-b240-treated group. In conclusion, this study demonstrated successful application of culture-independent assays for evaluating biological agents by detecting changes in microflora even if the protection was not sufficient to result in significant survival change.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Infection and Chemotherapy - Volume 19, Issue 4, 2013, Pages 673-676
Journal: Journal of Infection and Chemotherapy - Volume 19, Issue 4, 2013, Pages 673-676
نویسندگان
Yasuyuki Sugasawa, Tomoo Saga, Soichiro Kimura, Yoshikazu Ishii, Keizo Yamaguchi, Kazuhiro Tateda,