Results 51 to 60 of about 2,196 (154)

Effects of Coix Seed on Intestinal Flora Dextran Sulfate Sodium-induced Ulcerative Colitis in Mice [PDF]

open access: yes
Objective: To investigate the effect of coix seed on colitis and intestinal flora in mice induced by dextran sulfate sodium (DSS) and explore its mechanism of action. Methods: UC was induced in mice by freely drinking 3.5% DSS solution for 7 d.
Jiating SUN   +7 more
core   +1 more source

成年雄性海南长臂猿肠道微生物群落组成的宏基因组学分析

open access: yes野生动物学报, 2022
哺乳动物的肠道中存在庞大的微生物群落,这些微生物与宿主自身的消化吸收、能量代谢和免疫防御等生命活动息息相关。海南长臂猿(Nomascus hainanus)是世界上最濒危的灵长类动物之一,现存海南长臂猿种群小、分布范围狭窄、近亲繁殖隐患高,尚未摆脱物种灭绝风险,目前对该物种现存种群的肠道微生态研究匮乏。以海南热带雨林国家公园4个家庭群内的5只成年雄性海南长臂猿为研究对象,在旱季通过非损伤取样法及宏基因组学技术对采集到的粪便中的微生物进行测序分析和功能注释。结果表明 ...
李依蒙, 毕 玉, 金 崑
doaj  

Research Progress on Probiotics in Improving Mental Health of Older Adults [PDF]

open access: yes
As the global population is aging, elderly individuals are increasingly facing significant health challenges, especially mental health issues such as emotional problems, sleep disturbance, and cognitive impairment.
BO Zhihang, WANG Xinyu, YANG Zhenyu, ZHANG Guofang, DU Peng, LI Chun, LIU Libo
core   +1 more source

甘草素对去卵巢APP/PS1转基因小鼠肠道菌群的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2023
目的探讨甘草素(LG)对绝经前后APP/PS1小鼠肠道菌群的影响。方法将40只3月龄雌性APP/PS1双转基因小鼠随机分为假手术组 (sham, n=20)、去卵巢组(OVX, n=20)。术后第7天,将每组小鼠再分别用LG和生理盐水处理,另取10只野生型C57BL/6J小鼠作正常对照组(WT)。LG处理组剂量为30 mg•kg-1•d-1,药物处理90 d后,采集粪便样本,提取基因组,采用16S rDNA扩增子测序对各组小鼠的肠道菌群进行分析;利用水迷宫,评估小鼠的学习与记忆能力 ...
耿清华   +3 more
doaj   +2 more sources

肠道菌群与慢性肾脏病

open access: yesLinchuang shenzangbing zazhi, 2016
人体菌群由总计超过1015、种类达5001000种细菌构成,数目达到人体本身细胞数的10倍以上[1],其中消化道承载了最多种类和数量的菌群。肠道菌群不仅参与了人体重要的营养物质代谢以及部分维生素的合成,还维持了肠道环境稳态,诱导免疫系统成熟和免疫耐受,肠道菌群所产生的代谢产物还可以影响心、肾等脏器以及血管的功能[2]。近20年来大量研究表明,慢性肾脏病(chronic kidney disease,CKD)与肠道菌群之间存在着密切的相互影响和作用 ...
张镭, 聂静
doaj  

Effects of alginate oligosaccharides on depression-like behavior and gut microbiota in zebrafish induced by chronic unpredictable mild stress [PDF]

open access: yes
Objective To investigate the effects of alginate oligosaccharides (AOS) on depression-like behavior and gut microbiota in zebrafish, a model of chronic unpredictable mild stress (CUMS).
HE Naihuan   +8 more
core   +1 more source

内蒙古赛罕乌拉自然保护区马鹿夏季肠道菌群多样性

open access: yes野生动物学报, 2023
为更好地监测马鹿(Cervus elaphus)的生存状态,有效促进隔离小种群复壮,使用16S rRNA高通量测序技术对内蒙古赛罕乌拉国家级自然保护区马鹿夏季肠道菌群多样性及结构进行分析。结果表明:拟杆菌门(Bacteroidetes,29.55%)、变形菌门(Proteobacteria,29.30%)、厚壁菌门(Firmicutes,29.30%)和放线菌门(Actinobacteria,5.78%)是马鹿主要优势菌门;拟杆菌属(Bacteroides,4.30%)、瘤胃球菌属 ...
刘夫仁   +6 more
doaj  

Effects of in Vitro Culture with Chlorophyll a or b on the Fecal Flora Composition of High-Fat-Fed Mice and Metabolomic Analysis of Fermentation Products [PDF]

open access: yes
The objective of this study was to investigate the effect of chlorophyll a versus b on the intestinal flora of mice induced by a high-fat diet (HFD) metabolomics combined with microbial diversity analysis.
CHEN Yuyao, WANG Yuankai, ZENG Quanheng, ZHOU Chunjie, CAI Tian, CHEN Kewei
core   +1 more source

不同生活环境天鹅肠道菌群的多样性分析

open access: yes野生动物学报, 2020
为了探究在不同生活环境的天鹅肠道菌群的差异,我们从3个地点收集了4组天鹅的粪便样品,A组样品来自河南农业大学的黑天鹅(n=3),B组样品为郑州市动物园的黑天鹅(n=4),C组(n=4)和D组(n=4)样品来自迁徙至三门峡越冬的大天鹅。使用粪便DNA提取试剂盒提取粪便DNA,采用Illumina Hiseq平台进行细菌16S rRNA 基因V4—V5区域高通量测序,将下机数据经过处理和拼接后用于研究肠道菌群的差异。结果显示,A组的OTU个数显著高于其他组,OTU主成分与其他组有较大差异 ...
曹乐天 1 王璐阳 1 张艺凡 2 张凯慧 1 董睿龙 2 王悦欣 1 李丰波 2 张龙现 1
doaj  

肠促胰素在PCOS中的作用和机制

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2022
肠道菌群与疾病的关系为近年研究热点之一,肠-脑轴可能参与肥胖、糖尿病、多囊卵巢综合征(PCOS)等代谢相关疾病的发病机制。肠道菌群种类数量庞大,肠-脑轴的神经分泌调节机制尚不清楚,肠道菌群影响下丘脑-垂体-卵巢轴(HPO)的作用靶点难以准确定位。肠道内分泌激素近期受到关注,肠促胰素包括胰高血糖素样肽-1(GLP-1)和葡萄糖依赖性促胰岛素多肽(GIP)。这两种肠源性激素均可促进胰岛素的释放并降低血糖。目前国内外有关肠促胰素与HPO轴的研究较少,肠促胰素对PCOS的影响尚不明确。本文将综述该领域的研究进展,
潘孟茹, 李琳
doaj  

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