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植物发酵液对肠易激综合征患者肠道菌群的调节 被引量:3
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作者 杨莉丽 吴彬彬 梁岩 《世界华人消化杂志》 CAS 2016年第19期2982-2987,共6页
目的:通过高通量测序方法研究植物发酵液(plant fermented extract,PFE)对肠易激综合征(irritable bowel syndrome,IBS)患者肠道菌群的影响.方法:分别收集PFE作用0 d和30 d的人体粪便样本,采用Illumima系统MiSeq平台对PFE作用前后的样... 目的:通过高通量测序方法研究植物发酵液(plant fermented extract,PFE)对肠易激综合征(irritable bowel syndrome,IBS)患者肠道菌群的影响.方法:分别收集PFE作用0 d和30 d的人体粪便样本,采用Illumima系统MiSeq平台对PFE作用前后的样本进行16SrRNA测序,分析肠道菌群的结构和丰度.结果:PFE作用后,IBS患者的肠道菌群多样性无显著变化.在门水平上,硬壁菌门(Firmicutes)丰度显著降低(P<0.01),拟杆菌门(Bacteroidete)和变形菌门(Proteobacterias)的丰度以及Bacteroidetes/Firmicutes的比值增加.在最佳分类水平(科水平)上,P F E作用后的粪便肠道菌群中检测到弯曲菌科(Campylobacteraceae)、蟑螂杆状体科(Cryomorphaceae)、丹毒丝菌科(Erysipelotrichaceae)和纤维杆菌科(Fibrobacteraceae),且丰度变化具有显著差异(P<0.05).结论:PFE能够改善IBS患者肠道菌群丰度,调节肠道菌群,可能在IBS疾病的诊断和治疗中具有重要作用. 展开更多
关键词 植物发酵液 肠易激综合征 肠道菌群高通量测序 16SrRNA
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From Phenotypes to Molecules: Revolutionizing Gut Microbiota Identification Methods
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作者 WANG Xuan LV Chang-Long ZHAI Jing-Bo 《中国生物化学与分子生物学报》 CAS CSCD 北大核心 2024年第8期1065-1077,共13页
The gut microbiota is a complex ecosystem composed of many bacteria and their metabolites.It plays an irreplaceable role in human digestion,nutrient absorption,energy supply,fat metabolism,immune regulation,and many o... The gut microbiota is a complex ecosystem composed of many bacteria and their metabolites.It plays an irreplaceable role in human digestion,nutrient absorption,energy supply,fat metabolism,immune regulation,and many other aspects.Exploring the structure and function of the gut microbiota,as well as their key genes and metabolites,will enable the early diagnosis and auxiliary diagnosis of diseases,new treatment methods,better effects of drug treatments,and better guidance in the use of antibiotics.The identification of gut microbiota plays an important role in clinical diagnosis and treatment,as well as in drug research and development.Therefore,it is necessary to conduct a comprehensive review of this rapidly evolving topic.Traditional identification methods cannot comprehensively capture the diversity of gut microbiota.Currently,with the rapid development of molecular biology,the classification and identification methods for gut microbiota have evolved from the initial phenotypic and chemical identification to identification at the molecular level.This review integrates the main methods of gut microbiota identification and evaluates their application.We pay special attention to the research progress on molecular biological methods and focus on the application of high-throughput sequencing technology in the identification of gut microbiota.This revolutionary method for intestinal flora identification heralds a new chapter in our understanding of the microbial world. 展开更多
关键词 gut microbiota 16S rRNA real-time fluorescent qPCR high-throughput sequencing mass spectrum
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果糖与蔗糖摄入对大鼠肠道菌群结构的影响
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作者 宋歌 孙学谦 +4 位作者 王勇 庞邵杰 方微 彭文婷 綦文涛 《营养学报》 CAS CSCD 北大核心 2022年第3期284-292,共9页
目的探索相同剂量下果糖和蔗糖对大鼠生理生化指标和肠道菌群的影响,为促进糖类健康消费提供参考。方法36只健康成年雄性SD大鼠被随机分成3组:(1)对照组(Control):饲喂正常日粮;(2)果糖组(Fru):饲喂日粮中添加了13.2%果糖;(3)蔗糖组(Sa... 目的探索相同剂量下果糖和蔗糖对大鼠生理生化指标和肠道菌群的影响,为促进糖类健康消费提供参考。方法36只健康成年雄性SD大鼠被随机分成3组:(1)对照组(Control):饲喂正常日粮;(2)果糖组(Fru):饲喂日粮中添加了13.2%果糖;(3)蔗糖组(Sac):饲喂日粮中添加了13.2%蔗糖;实验持续20w。实验期间测定大鼠空腹血糖,OGTT变化,实验结束时收集血清和结肠内容物,对大鼠血液生化指标及肠道菌群结构进行分析。结果添加果糖导致大鼠血清中胰岛素和超氧化物歧化酶降低,脂肪酶、丙二醛和游离脂肪酸升高,但提高了肠道中丁酸的含量(P<0.05);添加蔗糖导致结肠中乳酸菌相对丰度降低;果糖和蔗糖的添加均引起了大鼠结肠菌群物种丰富度下降,蔗糖组中乳酸菌相对丰度降低(P<0.05)。结论在大鼠日粮中适量添加果糖,不会对糖代谢和脂代谢的主要脏器胰腺和肝脏造成明显伤害,但仍对大鼠血清中相关酶类及肠道菌群产生了一定影响。 展开更多
关键词 蔗糖 果糖 肠道菌群高通量测序 短链脂肪酸
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