徳島大学 教育・研究者情報データベース(EDB)

1. 柏原 秀也([徳島大学.病院.診療科.外科.消化器・移植外科])

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2. 島田 光生

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3. 栗田 信浩

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4. (英) Sato Hirohiko

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5. 吉川 幸造

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6. 東島 潤

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7. 近清 素也

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8. 西 正暁([徳島大学.大学院医歯薬学研究部.医学域.連携研究部門(医学域).寄附講座系(医学域).実践地域診療・医科学])

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9. 髙須 千絵([徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.消化器・移植外科学])

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(英) Duodenal-jejunal bypass improves diabetes and liver steatosis via enhanced glucagon-like peptide-1 elicited by bile acids.

(英) Bariatric surgery not only elicits weight loss but also rapidly resolves diabetes. However, the mechanisms remain unclear. The present study investigates how diabetes and liver steatosis are improved after duodenal-jejunal bypass (DJB) compared with a glucagon-like peptide-1 (GLP-1) analog and correlations between bile acids and GLP-1 secretion. We initially determined the effects of bile acids on GLP-1 in vitro and then assigned 12 male 16-week-old Otsuka Long-Evans Tokushima Fatty rats to groups that underwent DJB, a sham operation, or were treated with the GLP-1 receptor agonist, liraglutide (n = 4 each). Blood glucose, insulin, GLP-1, serum bile acids, liver steatosis, and the number of GLP-1 positive cells (L cells) in the small intestine and colon were investigated in the three groups at eight weeks postoperatively. Levels of GLP-1mRNA were upregulated and GLP-1 secretion increased in cells incubated with bile acids in vitro. Weight gain was suppressed more in the DJB than in the sham group in vivo. Diabetes was more improved and GLP-1 levels were significantly higher in the DJB than in the sham group. Serum bile acids were significantly increased, the number of L cells in the ileum was upregulated compared with the sham group, and liver steatosis was significantly improved in the DJB compared with the other two groups. Duodenal-jejunal bypass might improve diabetes and liver steatosis by enhancing GLP-1 secretion through increasing serum bile acids and the proliferation of L cells in the ileum, compared with liraglutide.

1. (日) 欧文論文

1. (英) Article.ELocationID: 10.1111/jgh.12690

2. (英) Article.PublicationTypeList.PublicationType: Journal Article

3. (英) KeywordList.Keyword: bariatric surgery

4. (英) KeywordList.Keyword: gastrointestinal hormone

5. (英) KeywordList.Keyword: incretin

6. (英) KeywordList.Keyword: liraglutide