酸奶可防止小鼠与结肠炎相关的结直肠癌。
摘要来源:
mol Nutr Food Res。 2023年10月28日:E2300444。 EPUB 2023 10月28日。PMID: 37897323“> 37897323 Du, Hao Zhang, Haitao Li, Wei Chen
Article Affiliation:Xiaojing Li
Abstract:SCOPE: Epidemiological studies indicate an inverse correlation between yogurt consumption and colorectal cancer (CRC), but whether there is a cause-and-effect relationship has not尚未得到验证。 This study aims to investigate the effects and possible mechanisms of yogurt on colitis-associated colorectal cancer (CAC) in mice.
METHODS AND RESULTS: Experimental CAC is induced by azoxymethane (AOM, 10 mg kg, ip) followed by three cycles of dextran sulfate SodiUM(DSS,3%)治疗。结肠炎是通过在饮用水中添加DSS(3%)5天引起的。将原发性小鼠巨噬细胞分离出来进行机械研究。数据清楚地表明,在小鼠中,酸奶(15 g kg的体重)将结肠肿瘤的多重性显着降低了38.83%。酸奶可保护小鼠免受依赖于乳酸受体GPR81的结肠炎。 GPR81的缺乏加剧了小鼠的结肠炎和CAC。进一步的研究表明,GPR81对于肠道屏障功能可能是可分配的,但对于结肠粘膜修复至关重要。 Yogurt中的D-乳酸可以激活GPR81以抑制促炎的巨噬细胞极化,从而促进结肠损伤后的炎症分辨率,从而抑制CAC的进展。