BACKGROUND Colitis-associated cancer(CAC)accounts for 2%-3%of colorectal cancer(CRC)cases preceded by inflammatory bowel diseases(IBD)such as Crohn's disease and ulcerative *** microbiota has been reported to play a c...
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BACKGROUND Colitis-associated cancer(CAC)accounts for 2%-3%of colorectal cancer(CRC)cases preceded by inflammatory bowel diseases(IBD)such as Crohn's disease and ulcerative *** microbiota has been reported to play a central role in the pathogenesis of IBD and ***,numerous prebiotics and probiotics have being investigated as antitumor agents due to their capacity to modulate inflammatory *** studies have indicated that lactic acid bacteria could be successfully used in managing sporadic CRC,however little is known about their role in *** To investigate the effect of the probiotic Lactobacillus bulgaricus(***)during the development of an experimental model of colitis associated colon cancer(CAC).METHODS C57BL/6 mice received an intraperitoneal injection of azoxymethane(10 mg/kg),followed by three cycles of sodium dextran sulphate diluted in water(5%w/v).Probiotic group received daily *** inflammation was determined by scoring clinical *** levels were determined from colon and/or tumor samples by ELISA BD OptEIATM *** level of significance was set at P<*** were generated and statistical analysis performed using the software GraphPad Prism *** *** treatment inhibited of total tumor volume and mean size of *** addition,the probiotic also attenuated the clinical signs of intestinal inflammation inducing a decrease in intestinal and tumor levels of IL-6,TNF-α,IL-17,IL-23 and IL-1β.CONCLUSION Our results suggest a potential chemopreventive effect of probiotic on *** regulates the inflammatory response and preventing CAC.
目的基于随机对照试验和非随机对照试验产生的证据,在因急慢性疾病住院的儿童和青少年中,评价医院小丑对一系列症状群的干预效果。研究设计基于随机和非随机对照试验的系统综述。数据来源美国国立医学图书馆(MEDLINE).美国科学情报研究所数据库(ISI of Knowledge).考科蓝对照试验注册中心(Cochrane Cental Registerof Controled Trials)、Science Diret全文数据库、Sopus数据库、美国心理协会数据库(American Psychalogical Association PeyeINFO)、护理和健康文献累积指数数据库(Curmulative Index to Nursing and Alied Heauth Literature),以及拉丁美洲和加勒比健康科学文献数据库(Lain Ameriean and Caribbean Health Sciences Literature)。研究筛选经間行评议后筛选随机和非随机对照试脸,纳人标准如下:因急性或慢性疾病人院的儿童和青少年,比较医院小丑与标准护理的研究,此外研究将医院小丑对住院儿童和青少年症状管理的影响作为主要结局指标。数据提取与整合由两名研究者独立完成研究筛选,数据摘录,以及偏倚风险评价。方法学评价也由两名研究者独立进行,评价工具有:Jadnd量表、随机对照试验的偏倚风险评估工具(RoB 2)和非随机对照试验的偏倚风险评估工具(ROBINS-I)。结果24项研究(n=1612)符合纳入标准,对其进行数据摘录和分析。大多数研究是随机对照试验(n=13)。最常分析的症状是焦虑(n=13),其次是疼痛(n=9)、心理和情绪反应以及幸福感(n=4)、压力(n=4)、癌症相关疲劳(n-3)和哭泣(n=2)。5项研究使用生物标志物(主要为皮质醇)来评估医院小丑对压力或疲劳的影响。方法学评价显示,大多数随机对照试验(n=11;85%)存在潜在偏倚风险,2项试验具有高度偏倚风险。ROBINS-I评价结果显示,大多数非随机对照试验(n=6;55%)存在中度偏倚风险。研究表明,无论父母是否在场,医院小丑出现时,儿童和青少年在一系列医疗程序中的焦虑显著降低,心理调节也得到改善(P<0.05)。3项针对慢性病患者的研究显示,医院小丑的干预有明显获益,显著减少了患儿的压力、疲劳、疼痛和痛营(PC0.05)。结论这些研究表明,在医疗程序术前诱导麻醉,以及慢性病常规护理中进行医院小丑干预,可能是症状管理的有效策略。此外,与接受标准护理的患儿相比,医院小丑干预可能有助于改善患有急慢性疾病的儿童和青少年的心理健康状态。
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