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Article Publish Status: FREE
Abstract Title:

Intermittent fasting prompted recovery from dextran sulfate sodium-induced colitis in mice.

Abstract Source:

J Clin Biochem Nutr. 2017 Sep ;61(2):100-107. Epub 2017 Jul 28. PMID: 28955126

Abstract Author(s):

Toshihiko Okada, Takeshi Otsubo, Teruki Hagiwara, Fumika Inazuka, Eiko Kobayashi, Shinji Fukuda, Takuya Inoue, Kazuhide Higuchi, Yuki I Kawamura, Taeko Dohi

Article Affiliation:

Toshihiko Okada

Abstract:

Fasting-refeeding in mice induces transient hyperproliferation of colonic epithelial cells, which is dependent on the lactate produced as a metabolite of commensal bacteria. We attempted to manipulate colonic epithelial cell turnover with intermittent fasting to prompt recovery from acute colitis. Acute colitis was induced in C57BL/6 mice by administration of dextran sulfate sodium in the drinking water for 5 days. From day 6, mice were fasted for 36 h and refed normal bait, glucose powder, or lactylated high-amylose starch. On day 9, colon tissues were subjected to analysis of histology and cytokine expression. The effect of lactate on the proliferation of colonocytes was assessed by enema in vivo and primary culture in vitro. Intermittent fasting resulted in restored colonic crypts and less expression of interleukin-1β and interleukin-17 in the colon than in mice fed ad libitum. Administration of lactate in the colon at refeeding time by enema or by feeding lactylated high-amylose starch increased the number of regenerating crypts. Addition of lactate but not butyrate or acetate supported colony formation of colonocytes in vitro. In conclusion, intermittent fasting in the resolution phase of acute colitis resulted in better recovery of epithelial cells and reduced inflammation.

Study Type : Animal Study, In Vitro Study

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