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Recent advances in systemic lupus erythematosus and microbiota: from bench to bedside

《医学前沿(英文)》 2022年 第16卷 第5期   页码 686-700 doi: 10.1007/s11684-022-0957-7

摘要: Systemic lupus erythematosus (SLE) is a complicated autoimmune disease affecting multiple systems and organs. It is highly heterogeneous, and it preferentially affects women at childbearing age, causing worldwide social burden. The pathogenesis of SLE mostly involves genetic predisposition, epigenetic dysregulation, overactivation of the immune system, and environment factors. Human microbiome, which is mostly composed of microbiota colonized in the gut, skin, and oral cavity, provides a natural microbiome barrier against environmental risks. The past decade of research has demonstrated a strong association between microbiota and metabolic diseases or gastrointestinal diseases. However, the role of microbiota in autoimmunity remains largely unknown until recently, when the technological and methodological progress facilitates further microbiota research in SLE. In this review, the latest research about the role and mechanisms of microbiota in SLE and the advances in the development of diagnostic and therapeutic strategies based on microbiota for SLE were summarized.

关键词: systemic lupus erythematosus     microbiota     biotherapy    

Gut microbiota and its implications in small bowel transplantation

null

《医学前沿(英文)》 2018年 第12卷 第3期   页码 239-248 doi: 10.1007/s11684-018-0617-0

摘要:

The gut microbiota is mainly composed of a diverse population of commensal bacterial species and plays a pivotal role in the maintenance of intestinal homeostasis, immune modulation and metabolism. The influence of the gut microbiota on solid organ transplantation has recently been recognized. In fact, several studies indicated that acute and chronic allograft rejection in small bowel transplantation (SBT) is closely associated with the alterations in microbial patterns in the gut. In this review, we focused on the recent findings regarding alterations in the microbiota following SBT and the potential roles of these alterations in the development of acute and chronic allograft rejection. We also reviewed important advances with respect to the interplays between the microbiota and host immune systems in SBT. Furthermore, we explored the potential of the gut microbiota as a microbial marker and/or therapeutic target for the predication and intervention of allograft rejection and chronic dysfunction. Given that current research on the gut microbiota has become increasingly sophisticated and comprehensive, large cohort studies employing metagenomic analysis and multivariate linkage should be designed for the characterization of host–microbe interaction and causality between microbiota alterations and clinical outcomes in SBT. The findings are expected to provide valuable insights into the role of gut microbiota in the development of allograft rejection and other transplant-related complications and introduce novel therapeutic targets and treatment approaches in clinical practice.

关键词: gut microbiota     small bowel transplantation     acute rejection     chronic rejection     mucosal immunity     biomarker     microbiota-targeted therapy    

ADT-OH improves intestinal barrier function and remodels the gut microbiota in DSS-induced colitis

《医学前沿(英文)》   页码 972-992 doi: 10.1007/s11684-023-0990-1

摘要: Owing to the increasing incidence and prevalence of inflammatory bowel disease (IBD) worldwide, effective and safe treatments for IBD are urgently needed. Hydrogen sulfide (H2S) is an endogenous gasotransmitter and plays an important role in inflammation. To date, H2S-releasing agents are viewed as potential anti-inflammatory drugs. The slow-releasing H2S donor 5-(4-hydroxyphenyl)-3H-1,2-dithiole-3-thione (ADT-OH), known as a potent therapeutic with chemopreventive and cytoprotective properties, has received attention recently. Here, we reported its anti-inflammatory effects on dextran sodium sulfate (DSS)-induced acute (7 days) and chronic (30 days) colitis. We found that ADT-OH effectively reduced the DSS-colitis clinical score and reversed the inflammation-induced shortening of colon length. Moreover, ADT-OH reduced intestinal inflammation by suppressing the nuclear factor kappa-B pathway. In vivo and in vitro results showed that ADT-OH decreased intestinal permeability by increasing the expression of zonula occludens-1 and occludin and blocking increases in myosin II regulatory light chain phosphorylation and epithelial myosin light chain kinase protein expression levels. In addition, ADT-OH restored intestinal microbiota dysbiosis characterized by the significantly increased abundance of Muribaculaceae and Alistipes and markedly decreased abundance of Helicobacter, Mucispirillum, Parasutterella, and Desulfovibrio. Transplanting ADT-OH-modulated microbiota can alleviate DSS-induced colitis and negatively regulate the expression of local and systemic proinflammatory cytokines. Collectively, ADT-OH is safe without any short-term (5 days) or long-term (30 days) toxicological adverse effects and can be used as an alternative therapeutic agent for IBD treatment.

关键词: inflammatory bowel disease     ADT-OH     intestinal permeability     gut microbiota    

Altered intestinal microbiota associated with colorectal cancer

Hong Zhang, Ying Chang, Qingqing Zheng, Rong Zhang, Cheng Hu, Weiping Jia

《医学前沿(英文)》 2019年 第13卷 第4期   页码 461-470 doi: 10.1007/s11684-019-0695-7

摘要: The gut microbiota plays an important role in the development and progression of colorectal cancer (CRC). To learn more about the dysbiosis of carcinogenesis, we assessed alterations in gut microbiota in patients with CRC. A total of 23 subjects were enrolled in this study: 9 had CRC (CRC group) and 14 had normal colons (normal group). The microbiome of the mucosal–luminal interface of each subject was sampled and analyzed using 16S rRNA gene amplicon sequencing. We also used Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) to predict microbial functional profiles. The microbial composition of the mucosal lumen differed between the groups, and the presence of specific bacteria may serve as a potential biomarker for colorectal carcinogenesis. We identified a significant reduction in which is a butyrate-producing genera of bacteria, and a significant increase in in the gut microbiota of CRC patients. Different levels of gut microflora in healthy and CRC samples were identified. The observed abundance of bacterial species belonging to and may serve as a promising biomarker for the early detection of CRC.

关键词: colorectal cancer (CRC)     gut microbiota     intestinal     Eubacterium     Devosia    

鱼类肠道菌群研究进展及潜在应用 Review

栾银银, 黎明, 周伟, 药园园, 杨雅麟, 张震, Einar Ringø, Rolf Erik Olsen, Jihong Liu Clarke, 解绶启, 麦康森, 冉超, 周志刚

《工程(英文)》 2023年 第29卷 第10期   页码 137-146 doi: 10.1016/j.eng.2022.12.011

摘要:

肠道菌群在宿主健康和疾病中起着重要作用。我们对鱼类菌群的理解远落后于人类和其他哺乳动物。尽管如此,现有研究也强调了微生物对鱼类的健康、生长性能和各种生理功能中的重要性。目前,模式动物、经济鱼类和野生鱼类中都展开了微生物的研究。鱼类菌群的组成取决于宿主选择、饮食和环境等因素。肠道菌群可以影响鱼类宿主的营养代谢、免疫和抗病能力,而宿主则通过免疫和非免疫因素以鱼菌互作的方式调节肠道菌群的稳态。目前已经开发出的无菌鱼类模型,对于研究鱼类与微生物互作的机理研究有着重要意义。在本篇综述中,我们讨论了鱼类微生物研究的最新进展,描述了包括鱼类微生物多样性,以及宿主-菌群交互作用的研究结果。同时,还讨论了鱼类菌群对鱼类健康及行业可持续发展的潜在作用。

关键词: 肠道菌群         宿主-菌群交互作用     水产养殖    

Clinical factors associated with composition of lung microbiota and important taxa predicting clinical

《医学前沿(英文)》 2022年 第16卷 第3期   页码 389-402 doi: 10.1007/s11684-021-0856-3

摘要: Few studies have described the key features and prognostic roles of lung microbiota in patients with severe community-acquired pneumonia (SCAP). We prospectively enrolled consecutive SCAP patients admitted to ICU. Bronchoscopy was performed at bedside within 48 h of ICU admission, and 16S rRNA gene sequencing was applied to the collected bronchoalveolar lavage fluid. The primary outcome was clinical improvements defined as a decrease of 2 categories and above on a 7-category ordinal scale within 14 days following bronchoscopy. Sixty-seven patients were included. Multivariable permutational multivariate analysis of variance found that positive bacteria lab test results had the strongest independent association with lung microbiota (R2=0.033; P=0.018), followed by acute kidney injury (AKI; R2=0.032; P=0.011) and plasma MIP-1β level (R2=0.027; P=0.044). Random forest identified that the families Prevotellaceae, Moraxellaceae, and Staphylococcaceae were the biomarkers related to the positive bacteria lab test results. Multivariable Cox regression showed that the increase in α-diversity and the abundance of the families Prevotellaceae and Actinomycetaceae were associated with clinical improvements. The positive bacteria lab test results, AKI, and plasma MIP-1β level were associated with patients’ lung microbiota composition on ICU admission. The families Prevotellaceae and Actinomycetaceae on admission predicted clinical improvements.

关键词: severe community-acquired pneumonia     lung microbiota     clinical improvements     7-category ordinal scale     Prevotellaceae    

通过调控肠道菌群治疗慢性疾病

洪斌, 蒋建东

《工程(英文)》 2022年 第18卷 第11期   页码 17-20 doi: 10.1016/j.eng.2021.08.015

Pien Tze Huang Protects Against Non-Alcoholic Steatohepatitis by Modulating the Gut Microbiota and Metabolites

Xianyi Zeng,Xiang Zhang,Hao Su,Hongyan Gou,Harry Cheuk-Hay Lau,Xiaoxu Hu,Ziheng Huang,Yan Li,Jun Yu,

《工程(英文)》 doi: 10.1016/j.eng.2022.10.010

摘要: Non-alcoholic steatohepatitis (NASH) is a severe form of non-alcoholic fatty liver disease without effective treatment. The traditional Chinese medicine formulation Pien Tze Huang (PTH) can suppress inflammatory diseases. Here, we evaluate the effects of PTH on the evolution of NASH and its underlying mechanisms. We found that PTH prevented the development of steatohepatitis induced by various dietary models, including a high-fat high-cholesterol (HFHC) diet, choline-deficient high-fat diet (CD-HFD), and methionine- and choline-deficient (MCD) diet, along with significant suppression of liver injury, hepatic triglyceride, and lipid peroxidation. Moreover, ten days of PTH treatment after the onset of NASH significantly ameliorated MCD diet-induced steatosis and liver injury in mice. Through the metagenomic sequencing of stool samples, we found that PTH administration restored the gut microbiota with enrichment of probiotics including Lactobacillus acidophilus (L. acidophilus), Lactobacillus plantarum, Lactococcus lactis, and Bacillus subtilis. The enriched L. acidophilus prevented MCD diet-induced steatohepatitis. In addition, PTH restored the gut barrier function in mice with steatohepatitis, as evidenced by reduced intestinal permeability, decreased serum lipopolysaccharides (LPS) level, and increased epithelial tight-junction protein E-cadherin expression. Our metabolomic analysis via liquid chromatography-mass spectrometry profiling identified the alteration in the metabolism of bile acids in the portal vein of PTH-treated mice. We further confirmed that an intact gut microbiota is necessary for PTH to exhibit anti-steatohepatitis effects. In conclusion, PTH protects against steatohepatitis development by modulating the gut microbiota and metabolites. PTH is a potential promising prophylactic and therapeutic option for patients with NASH.

关键词: Pien Tze Huang     Non-alcoholic steatohepatitis     Gut barrier function     Gut microbiota    

Untargeted metabolomic analysis of pregnant women exposure to perfluorooctanoic acid at different degrees

《环境科学与工程前沿(英文)》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1628-x

摘要:

● Metabolome can distinguish pregnant women exposure to PFOA at different degrees.

关键词: Perfluorooctanoic acid     Exposure     Pregnant women     Metabolomic     GSH     Microbiota metabolism    

肠道菌群与肿瘤发生及肝病

吕桂帅, 程宁涛, 王红阳

《工程(英文)》 2017年 第3卷 第1期   页码 110-114 doi: 10.1016/J.ENG.2017.01.017

摘要:

一个多世纪以前,科学家们就首次发现了肿瘤区域中细菌的存在。但是,微生物在肿瘤发生中的作用近年来才被认识到。近几十年来,与肠道菌群失调相关的疾病代表了全世界最严重的一些公共卫生问题。大量的流行病学研究表明,肠道菌群与某些常见肿瘤密切相关。然而,肠道菌群与肿瘤相关联的具体分子机制仍不明确。研究表明,肠道菌群的改变有助于确定肝癌、酒精相关肝病、非酒精性脂肪肝和肝硬化的发生和发展。鉴于益生菌是一种可通过调节免疫系统促进人类健康的药物,其可能会为肝细胞癌(HCC) 和非酒精性脂肪肝的治疗提供新方向。本文总结了肠道菌群在肿瘤及肝病中的研究进展,综述了肠道菌群与肿瘤和肝病之间的关系。此外,考虑到细菌内稳态的重要性,我们也对益生菌进行了概述,旨在为相关疾病的治疗提供指导。

关键词: 肠道菌群     稳态失调     肿瘤发生     肝细胞癌     非酒精性脂肪性肝病    

从农场到微生物工程:微生态与过敏性疾病

Dominique Angèle Vuitton, Jean-Charles Dalphin

《工程(英文)》 2017年 第3卷 第1期   页码 98-109 doi: 10.1016/J.ENG.2017.01.019

摘要:

第二次世界大战之后,IgE 依赖性过敏性疾病的发生呈稳步上升趋势,在人类发展史上,这种现象是很罕见的。许多大规模横断面研究、纵向队列研究及基础实验性研究均指出,在生活方式及生活环境的重大演变过程中人类的一些与过敏相关的“保护性因素”正逐渐消失。其中被广泛认可的观念是:肠道微生态在免疫调节方面扮演着重要角色。本文综述了暴露在不同微生物组成的农场环境对过敏性疾病的保护作用。此外,传统生活环境中的微生物如何促进儿童免疫系统的正常发育,以及此种相互作用在现代生活方式下的不可逆性缺失同样被阐明。“农场效应”的保护作用主要包括:母亲怀孕期间或婴儿期接触动物、谷仓、马厩,饮用未加工的牛奶和其他奶制品。除农场环境中的微生物总量之外,微生物的生物多样性似乎对于这种保护也至关重要,这可能归因于农场环境对机体肠道菌群生物多样性的贡献。过敏性疾病专科医生和儿科医生临床应用传统益生菌(如乳杆菌和双岐杆菌)对过敏性疾病的预防作用并未达到满意的预期效果。小鼠呼吸道过敏性疾病模型研究表明,牛棚中存在着对过敏性疾病起重要预防作用的微生物,如鲁氏不动杆菌(A.lwoffii) F78、乳酸乳球菌(L. lactis) G121 和松鼠葡萄球菌(S.sciuri)W620。然而,在对农场环境的卓有成效的研究基础上,研发新一代益生菌仍需要微生物学家、免疫学家和生物工程师以及儿科医生、过敏性疾病专科医生、临床试验专家和伦理委员会之间的密切合作。

关键词: 过敏     农场     生物多样性     免疫调节     微生态     转化研究    

微生态如何影响人体健康?

李兰娟

《工程(英文)》 2017年 第3卷 第1期   页码 1-1 doi: 10.1016/J.ENG.2017.01.021

Structural shifts in the intestinal microbiota of rats treated with cyclosporine A after orthotropic

Junjun Jia, Xinyao Tian, Jianwen Jiang, Zhigang Ren, Haifeng Lu, Ning He, Haiyang Xie, Lin Zhou, Shusen Zheng

《医学前沿(英文)》 2019年 第13卷 第4期   页码 451-460 doi: 10.1007/s11684-018-0675-3

摘要: Understanding the effect of immunosuppressive agents on intestinal microbiota is important to reduce the mortality and morbidity from orthotopic liver transplantation (OLT). We investigated the relationship between the commonly used immunosuppressive agent cyclosporine A (CSA) and the intestinal microbial variation in an OLT model. The rat samples were divided as follows: (1) N group (normal control); (2) I group (isograft LT, Brown Norway [BN] rat to BN); (3) R group (allograft LT, Lewis to BN rat); and (4) CSA group (R group treated with CSA). The intestinal microbiota was assayed by denaturing gradient gel electrophoresis profiles and by using real-time polymerase chain reaction. The liver histopathology and the alanine/aspartate aminotransferase ratio after LT were both ameliorated by CSA. In the CSA group, the numbers of rDNA gene copies of cluster I, cluster XIV, and Enterobacteriaceae decreased, whereas those of increased compared with the R group. Cluster analysis indicated that the samples from the N, I, and CSA groups were clustered, whereas the other clusters contained the samples from the R group. Hence, CSA ameliorates hepatic graft injury and partially restores gut microbiota following LT, and these may benefit hepatic graft rejection.

关键词: microbial community     liver transplantation     immunosuppressive agents     cyclosporine A    

Arbuscular mycorrhizal associations and the major regulators

Li XUE, Ertao WANG

《农业科学与工程前沿(英文)》 2020年 第7卷 第3期   页码 296-306 doi: 10.15302/J-FASE-2020347

摘要:

Plants growing in natural soils encounter diverse biotic and abiotic stresses and have adapted with sophisticated strategies to deal with complex environments such as changing root system structure, evoking biochemical responses and recruiting microbial partners. Under selection pressure, plants and their associated microorganisms assemble into a functional entity known as a holobiont. The commonest cooperative interaction is between plant roots and arbuscular mycorrhizal (AM) fungi. About 80% of terrestrial plants can form AM symbiosis with the ancient phylum Glomeromycota. A very large network of extraradical and intraradical mycelium of AM fungi connects the underground biota and the nearby carbon and nutrient fluxes. Here, we discuss recent progress on the regulators of AM associations with plants, AM fungi and their surrounding environments, and explore further mechanistic insights.

关键词: AM symbiosis     signal     regulators     nutrients     phosphate     microbiota    

人体微生态与健康

王保红, 姚铭飞, 吕龙贤, 凌宗欣, 李兰娟

《工程(英文)》 2017年 第3卷 第1期   页码 71-82 doi: 10.1016/J.ENG.2017.01.008

摘要:

数以万亿计的微生物寄生于人体表面和体内,并与人类起演变多种环境因素可影响胃肠道微生的平衡,这些改变与人体健康和疾病密切相关本文重点关注人体微生与宿主之间的相互作用,总体概括微生物在人体基本生命过程中以及主要疾病中起的作用,如感染性疾病肝脏疾病胃肠道肿瘤、代谢疾病呼吸系统疾病精神或心理疾病和自身免疫疾病等。我们还综述了微生物研究相关术的重要进展,如DNA 测序、代谢组学和基于计算生物信息学的蛋白质组学目前对人类微生态的研究已经更加复杂和全面建议研究应更多关注–宿主微生物的相互作用和因果关系,这有助于我们更好地了解肠道微生物在人类健康和疾病中的作用,并为临床实践提供新的治疗靶点和方法。

关键词: 微生物     健康     传染病     肝病     胃肠道恶性肿瘤     代谢紊乱     微生物技术     益生菌    

标题 作者 时间 类型 操作

Recent advances in systemic lupus erythematosus and microbiota: from bench to bedside

期刊论文

Gut microbiota and its implications in small bowel transplantation

null

期刊论文

ADT-OH improves intestinal barrier function and remodels the gut microbiota in DSS-induced colitis

期刊论文

Altered intestinal microbiota associated with colorectal cancer

Hong Zhang, Ying Chang, Qingqing Zheng, Rong Zhang, Cheng Hu, Weiping Jia

期刊论文

鱼类肠道菌群研究进展及潜在应用

栾银银, 黎明, 周伟, 药园园, 杨雅麟, 张震, Einar Ringø, Rolf Erik Olsen, Jihong Liu Clarke, 解绶启, 麦康森, 冉超, 周志刚

期刊论文

Clinical factors associated with composition of lung microbiota and important taxa predicting clinical

期刊论文

通过调控肠道菌群治疗慢性疾病

洪斌, 蒋建东

期刊论文

Pien Tze Huang Protects Against Non-Alcoholic Steatohepatitis by Modulating the Gut Microbiota and Metabolites

Xianyi Zeng,Xiang Zhang,Hao Su,Hongyan Gou,Harry Cheuk-Hay Lau,Xiaoxu Hu,Ziheng Huang,Yan Li,Jun Yu,

期刊论文

Untargeted metabolomic analysis of pregnant women exposure to perfluorooctanoic acid at different degrees

期刊论文

肠道菌群与肿瘤发生及肝病

吕桂帅, 程宁涛, 王红阳

期刊论文

从农场到微生物工程:微生态与过敏性疾病

Dominique Angèle Vuitton, Jean-Charles Dalphin

期刊论文

微生态如何影响人体健康?

李兰娟

期刊论文

Structural shifts in the intestinal microbiota of rats treated with cyclosporine A after orthotropic

Junjun Jia, Xinyao Tian, Jianwen Jiang, Zhigang Ren, Haifeng Lu, Ning He, Haiyang Xie, Lin Zhou, Shusen Zheng

期刊论文

Arbuscular mycorrhizal associations and the major regulators

Li XUE, Ertao WANG

期刊论文

人体微生态与健康

王保红, 姚铭飞, 吕龙贤, 凌宗欣, 李兰娟

期刊论文