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Yuka Ikeda Kurumi Taniguchi Haruka Sawamura Ai Tsuji Satoru Matsuda 《World journal of gastroenterology : WJG》2022,28(31):4471-4474
Irritable bowel syndrome (IBS) is an important health care concern. Alterations in the microbiota of the gut-brain axis may be linked to the pathophysiology of IBS. Some dietary intake could contribute to produce various metabolites including D-amino acids by the fermentation by the gut microbiota. D-amino acids are the enantiomeric counterparts of L-amino acids, in general, which could play key roles in cellular physiological processes against various oxidative stresses. Therefore, the presence of D-amino acids has been shown to be linked to the protection of several organs in the body. In particular, the gut microbiota could play significant roles in the stability of emotion via the action of D-amino acids. Here, we would like to shed light on the roles of D-amino acids, which could be used for the treatment of IBS. 相似文献
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目的 探讨肥胖患者腹腔镜下袖状胃切除术(LSG)前后肠道菌群的变化,及对非酒精性脂肪肝(NALFD)的影响。方法 收集2020年7月至2021年1月在安徽医科大学第二附属医院胃肠减重代谢外科就诊并接受LSG治疗的30例肥胖合并NAFLD患者的临床资料,观察并记录LSG术前和术后3个月的体质量参数、血清检验结果和粪便菌群测序等指标。计算LSG治疗前后患者肝脏脂肪(FLI)指数和FIB-4评分,评估手术后患者肝脂肪变性和纤维化的改善情况。结果 LSG术后患者身体质量参数、FLI及FIB-4评分较术前降低,差异有统计学意义(P<0.05)。Wilcoxon秩和检验显示术后肠道菌群的丰度和多样性较术前增加,其中梭杆菌的比例增加,厚壁菌比例减少,差异有统计学意义(P<0.05)。白介素-1β(IL-1β)、肿瘤坏死因子-a (TNF-a)水平较术前降低,白介素-4(IL-4)水平较术前升高,差异均有统计学意义(P<0.05)。细胞因子与菌群的Spearman相关性分析显示,梭杆菌与TNF-a,IL-1β呈负相关(r=-0.203、-0.329,P<0.05),厚壁菌与TNF-a,IL-1β呈正相关(r=0.315、0.459,P<0.05)。术前Pearson相关性分析显示TNF-a、IL-1β分别与FLI、FIB-4评分呈正相关(r=0.391、0.435、0.402、0.373,P<0.05),IL-4与FLI、FIB-4评分呈负相关(r=-0.523、-0.410,P<0.05)。术后相关性分析提示同样结果。结论 LSG可改善肠道菌群的丰度及分布,降低FLI和FIB-4评分进而缓解了肥胖患者肝脂肪变性和纤维化,IL-1β、IL-4和TNF-a可能在肠-肝轴中起到调节作用。 相似文献
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目的:探究不同月龄APP/PS1双转基因模型小鼠的肠道菌群特点及补肾法对其肠道菌群失衡的影响。方法:将8只6个月龄雄性APP/PS1小鼠随机分为模型组和补肾组;4只6个月龄雄性C57BL/6小鼠作为正常对照组。补肾组小鼠给予补肾法中药灌胃3个月,模型组和正常对照组小鼠均予以等体积羧甲基纤维素(CMC)溶液灌胃。留取小鼠灌胃干预前后的粪便,运用16SrDNA技术检测各组肠道菌群的组成结构。从肠道微生态方面,探讨补肾中药对APP/PS1双转基因小鼠肠道菌群构成的影响。结果:6个月龄时模型组和正常对照组小鼠的肠道菌群差异无统计学意义;与9个月龄正常组比较,模型组小鼠肠道内芽孢杆菌纲丰度明显升高。与模型组比较,补肾组肠道内芽孢杆菌纲丰度明显下降,疣微菌门丰度呈上升趋势。结论:APP/PS1小鼠体内均存在肠道菌群失衡的情况,主要与芽孢菌纲、疣微菌门的丰度水平的变化相关。补肾法可以通过降低芽孢菌纲、升高疣微菌门的丰度来进一步改善AD小鼠肠道菌群失衡状态。 相似文献
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Bharati Kadamb Patel Kadamb H Patel Madhav Bhatia Shridhar Ganpati Iyer Krishnakumar Madhavan Shabbir M Moochhala 《World journal of gastroenterology : WJG》2021,27(30):5019-5036
The gut microbiome is a complex microbial community, recognized for its potential role in physiology, health, and disease. The available evidence supports the role of gut dysbiosis in pancreatic disorders, including acute pancreatitis (AP). In AP, the presence of gut barrier damage resulting in increased mucosal permeability may lead to translocation of intestinal bacteria, necrosis of pancreatic and peripancreatic tissue, and infection, often accompanied by multiple organ dysfunction syndrome. Preserving gut microbial homeostasis may reduce the systemic effects of AP. A growing body of evidence suggests the possible invo lvement of the gut microbiome in various pancreatic diseases, including AP. This review discusses the possible role of the gut microbiome in AP. It highlights AP treatment and supplementation with prebiotics, synbiotics, and probiotics to maintain gastrointestinal microbial balance and effectively reduce hospitalization, morbidity and mortality in an early phase. It also addresses novel therapeutic areas in the gut microbiome, personalized treatment, and provides a roadmap of human microbial contributions to AP that have potential clinical benefit. 相似文献
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肠道微生物在神经退行性疾病中的研究进展 总被引:1,自引:0,他引:1
肠道微生物可以影响中枢神经系统.肠道微生物能够调节神经系统、内分泌系统、免疫系统等,进而影响神经退行性疾病的发生发展.本文总结了肠道微生物研究的发展历史,重点综述了近年来阿尔茨海默病、帕金森病、肌萎缩侧索硬化等神经退行性疾病在肠道微生物上的研究进展.肠道微生物稳态的破坏是影响神经退行性疾病发生发展的重要因素,而重构肠道微生物稳态,如抗生素与益生菌治疗,以及粪便移植等方式或可成为神经退行性疾病治疗研究的新方向. 相似文献
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Aging is a natural biological event that has some downsides such as increased frailty, decline in cognitive and physical functions leading to chronical diseases, and lower quality of life. There is therefore a pressing need of reliable biomarkers to identify populations at risk of developing age-associated syndromes in order to improve their quality of life, promote healthy ageing and a more appropriate clinical management, when needed. Here we discuss the importance of hippuric acid, an endogenous co-metabolite, as a possible hallmark of human aging and age-related diseases, summarizing the scientific literature over the last years. Hippuric acid, the glycine conjugate of benzoic acid, derives from the catabolism by means of intestinal microflora of dietary polyphenols found in plant-based foods (e.g. fruits, vegetables, tea and coffee). In healthy conditions hippuric acid levels in blood and/or urine rise significantly during aging while its excretion drops in conditions related with aging, including cognitive impairments, rheumatic diseases, sarcopenia and hypomobility. This literature highlights the utility of hippuric acid in urine and plasma as a plausible hallmark of frailty, related to low fruit and vegetable intake and changes in gut microflora. 相似文献
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