Yingli Qiao1, Jianmin Qian2, Qingyang Lu3, Yaqiang Tian4, Qi Chen1, Yang Zhang5. 1. Department of General Surgery, Liaocheng People's Hospital, Liaocheng, China. 2. Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China. 3. Department of Pathology, Liaocheng People's Hospital, Liaocheng, China. 4. Department of Endocrinology, Liaocheng People's Hospital, Liaocheng, China. 5. Department of General Surgery, Liaocheng People's Hospital, Liaocheng, China. Electronic address: zhangyang5366@163.com.
Abstract
BACKGROUND: Butyrate is normally fermented from undigested fiber by intestinal microflora. The goal of the present study was to determine the effects of butyrate and its underlying mechanisms on intestinal injury in a rat model of ischemia and reperfusion (I/R). METHODS: Male Sprague-Dawley rats were subjected to warm ischemia for 45 min by clamping the superior mesenteric artery after treatment with butyrate, followed by 6 and 72 h of reperfusion. Pathologic histology analysis, enzyme-linked immunosorbent assay, immunofluorescence, and Western blot were performed. RESULTS: Butyrate preconditioning markedly improved intestinal injury. The inflammatory factor levels and leukocyte infiltration were attenuated by butyrate. Butyrate also maintained the intestinal barrier structures, increased the expression of tight junction proteins, and decreased endotoxin translocation. CONCLUSIONS: We conclude that butyrate administration attenuates intestinal I/R injury, which is associated with preservation of intestinal tight junction barrier function and suppression of inflammatory cell infiltration in the intestinal mucosa. This suggests butyrate as a potential strategy to prevent intestinal I/R injury.
BACKGROUND:Butyrate is normally fermented from undigested fiber by intestinal microflora. The goal of the present study was to determine the effects of butyrate and its underlying mechanisms on intestinal injury in a rat model of ischemia and reperfusion (I/R). METHODS: Male Sprague-Dawley rats were subjected to warm ischemia for 45 min by clamping the superior mesenteric artery after treatment with butyrate, followed by 6 and 72 h of reperfusion. Pathologic histology analysis, enzyme-linked immunosorbent assay, immunofluorescence, and Western blot were performed. RESULTS:Butyrate preconditioning markedly improved intestinal injury. The inflammatory factor levels and leukocyte infiltration were attenuated by butyrate. Butyrate also maintained the intestinal barrier structures, increased the expression of tight junction proteins, and decreased endotoxin translocation. CONCLUSIONS: We conclude that butyrate administration attenuates intestinal I/R injury, which is associated with preservation of intestinal tight junction barrier function and suppression of inflammatory cell infiltration in the intestinal mucosa. This suggests butyrate as a potential strategy to prevent intestinal I/R injury.
Authors: Alessandra Bertacco; Carina A Dehner; Giorgio Caturegli; Francesco D'Amico; Raffaella Morotti; Manuel I Rodriguez; David C Mulligan; Martin A Kriegel; John P Geibel Journal: Front Physiol Date: 2017-12-19 Impact factor: 4.566