Gut Dysbiosis and Detection of "Live Gut Bacteria" in Blood of Japanese Patients With Type 2 Diabetes.

Autor: Junko Sato, Akio Kanazawa, Fuki Ikeda, Tomoaki Yoshihara, Hiromasa Goto, Hiroko Abe, Koji Komiya, Minako Kawaguchi, Tomoaki Shimizu, Takeshi Ogihara, Yoshifumi Tamura, Yuko Sakurai, Risako Yamamoto, Tomoya Mita, Yoshio Fujitani, Hiroshi Fukuda, Koji Nomoto, Takuya Takahashi, Takashi Asahara, Takahisa Hirose
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Zdroj: Diabetes Care; Aug2014, Vol. 37 Issue 8, p2343-2350, 8p, 4 Charts
Abstrakt: OBJECTIVE Mounting evidence indicates that the gut microbiota are an important modifier of obesity and diabetes. However, so far there is no information on gut microbiota and "live gut bacteria" in the systemic circulation of Japanese patients with type 2 diabetes. RESEARCH DESIGN AND METHODS Using a sensitive reverse transcription-quantitative PCR (RT-qPCR) method, we determined the composition of fecal gut microbiota in 50 Japanese patients with type 2 diabetes and 50 control subjects, and its association with various clinical parameters, including inflammatory markers. We also analyzed the presence of gut bacteria in blood samples. RESULTS The counts of the Clostridium coccoides group, Atopobium cluster, and Prevotella (obligate anaerobes) were significantly lower (P < 0.05), while the counts of total Lactobacillus (facultative anaerobes) were significantly higher (P < 0.05) in fecal samples of diabetic patients than in those of control subjects. Especially, the counts of Lactobacillus reuteri and Lactobacillus plantarum subgroups were significantly higher (P < 0.05). Gut bacteria were detected in blood at a significantly higher rate in diabetic patients than in control subjects (28% vs. 4%, P < 0.01), and most of these bacteria were Gram-positive. CONCLUSIONS This is the first report of gut dysbiosis in Japanese patients with type 2 diabetes as assessed by RT-qPCR. The high rate of gut bacteria in the circulation suggests translocation of bacteria from the gut to the bloodstream. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index