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Abstract Title:Dietary Red Raspberry Reduces Colorectal Inflammation and Carcinogenic Risk in Mice with Dextran Sulfate钠诱导的结肠炎。
摘要来源:
j nutr。 2018 05 1; 148(5):667-674。 PMID: 29897487“> 29897487
shima bibi
摘要:
背景: 溃疡性结肠炎会导致重复的肠粘膜损伤和持续炎症,从而增加了结直肠癌(CRC)发育的可能性。饮食红覆盆子(RB)是已知具有抗炎活性的植物营养素的丰富来源。但是,尚未研究RB在CRC预防中的作用。
目标: 这项研究检查了补充饮食RB对炎症,上皮修复和致癌信号的影响 六周大的雄性C57BL/6J小鼠被喂食10周的对照或RB(占干饲料重量的5%; n = 12/组)饮食。从第四周开始,对小鼠进行了2个重复的循环,该循环为1%DSS(7-D DSS治疗加14-D恢复),并每天监测疾病活动指数(DAI)得分。 Colonic tissues were collected at the end of the study for histochemical, immunohistochemical, and biochemical analysis of inflammation, differentiation and proliferation markers.
RESULTS: RB supplementation reduced the DAI score and histologic damage (by 38.9%; P ≤ 0.01), expression of炎症介质(乘20-70%;P≤0.01),CD4 T细胞的浸润(50%;P≤0.05)和α4β7整合素和相关的粘附分子(33.3%;P≤0.01)。此外,RB补充促进了上皮修复,这是由杯状细胞密度增强,转录因子的表达,包括Kruppel样因子4(KLF4)(KLF4)以及分裂1(Hes1)的毛茸茸和增强子,末端差异标记,末端差异标记,粘液菌素2(MUC2)(MUC2)和肠道碱性碱磷酸磷酸2.00%;相反,通过补充RB,RB补充减少了增殖的细胞核抗原(70%;P≤0.01),β-catenin和Transcription 3(STAT3)信号传导的信号传感器和激活剂(STAT3)信号传导(19-33%;P≤0.05)。 In addition, RB supplementation enhanced p53 stability (by 53%) and reduced oncogenic gene expression (by 50-60%).
CONCLUSION: RB supplementation reduced DAI score and the risk of CRC development during recurring colitis in mice, suggesting that RB is a possible dietary su溃疡性结肠炎和相关肠道炎症性疾病的患者的pple。