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https://www.readbyqxmd.com/read/28527760/restoration-of-cefixime-induced-gut-microbiota-changes-by-lactobacillus-cocktails-and-fructooligosaccharides-in-a-mouse-model
#1
Ying Shi, Qixiao Zhai, Dongyao Li, Bingyong Mao, Xiaoming Liu, Jianxin Zhao, Hao Zhang, Wei Chen
Probiotics have been used to rebuild the antibiotic-induced dysfunction in gut microbiota, but whether the different strains of probiotics result in similar or reverse effects remains unclear. In this study, the different recovery effects of two cocktails (each contains four strains) of Lactobacillus and fructooligosaccharide against cefixime-induced change of gut microbiota were evaluated in C57BL/6J mice. The results show that the use of cefixime caused a reduction in the diversities of the microbial community and led to significantly decreasing to one preponderant Firmicutes phylum, which was difficult to restore naturally in the short term...
July 2017: Microbiological Research
https://www.readbyqxmd.com/read/28512779/structure-of-protein-emulsion-in-food-impacts-intestinal-microbiota-caecal-luminal-content-composition-and-distal-intestine-characteristics-in-rats
#2
Martin Beaumont, Daphné Jaoui, Véronique Douard, Damien Mat, Fanny Koeth, Bénédicte Goustard, Camille Mayeur, Stanislas Mondot, Anais Hovaghimian, Steven Le Feunteun, Catherine Chaumontet, Anne-Marie Davila, Daniel Tomé, Isabelle Souchon, Camille Michon, Gilles Fromentin, François Blachier, Marion Leclerc
SCOPE: Few studies have evaluated in vivo the impact of food structure on digestion, absorption of nutrients and on microbiota composition and metabolism. In this study we evaluated in rat the impact of two structures of protein emulsion in food on gut microbiota, luminal content composition, and intestinal characteristics. METHODS AND RESULTS: Rats received for 3 weeks two diets of identical composition but based on lipid-protein matrices of liquid fine (LFE) or gelled coarse (GCE) emulsion...
May 17, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28497729/-optimization-and-safety-assessment-of-akkermansia-muciniphila-for-human-administration
#3
Hubert Plovier, Patrice D Cani
No abstract text is available yet for this article.
April 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28487606/effect-of-lactobacillus-rhamnosus-hn001-and-bifidobacterium-longum-bb536-on-the-healthy-gut-microbiota-composition-at-phyla-and-species-level-a-preliminary-study
#4
Marco Toscano, Roberta De Grandi, Laura Stronati, Elena De Vecchi, Lorenzo Drago
AIM: To evaluate the ability of Lactobacillus rhamnosus HN001 and Bifidobacterium longum BB536 to colonize the intestinal environment of healthy subjects and modify the gut microbiota composition. METHODS: Twenty healthy Italian volunteers, eight males and twelve females, participated in the study. Ten subjects took a sachet containing 4 × 10(9) colony-forming units (CFU) of Bifidobacterium longum BB536 and 10(9) CFU of Lactobacillus rhamnosus HN001, 30 min before breakfast (pre-prandial administration), while ten subjects took a sachet of probiotic product 30 min after breakfast (post-prandial administration)...
April 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28449715/functional-implications-of-microbial-and-viral-gut-metagenome-changes-in-early-stage-l-dopa-na%C3%A3-ve-parkinson-s-disease-patients
#5
J R Bedarf, F Hildebrand, L P Coelho, S Sunagawa, M Bahram, F Goeser, P Bork, U Wüllner
BACKGROUND: Parkinson's disease (PD) presently is conceptualized as a protein aggregation disease in which pathology involves both the enteric and the central nervous system, possibly spreading from one to another via the vagus nerves. As gastrointestinal dysfunction often precedes or parallels motor symptoms, the enteric system with its vast diversity of microorganisms may be involved in PD pathogenesis. Alterations in the enteric microbial taxonomic level of L-DOPA-naïve PD patients might also serve as a biomarker...
April 28, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28449706/chemical-and-pathogen-induced-inflammation-disrupt-the-murine-intestinal-microbiome
#6
Mikayla A Borton, Anice Sabag-Daigle, Jikang Wu, Lindsey M Solden, Bridget S O'Banion, Rebecca A Daly, Richard A Wolfe, Juan F Gonzalez, Vicki H Wysocki, Brian M M Ahmer, Kelly C Wrighton
BACKGROUND: Salmonella is one of the most significant food-borne pathogens to affect humans and agriculture. While it is well documented that Salmonella infection triggers host inflammation, the impacts on the gut environment are largely unknown. A CBA/J mouse model was used to evaluate intestinal responses to Salmonella-induced inflammation. In parallel, we evaluated chemically induced inflammation by dextran sodium sulfate (DSS) and a non-inflammation control. We profiled gut microbial diversity by sequencing 16S ribosomal ribonucleic acid (rRNA) genes from fecal and cecal samples...
April 27, 2017: Microbiome
https://www.readbyqxmd.com/read/28446519/cationic-polystyrene-resolves-nonalcoholic-steatohepatitis-nash-obesity-and-metabolic-disorders-by-promoting-eubiosis-of-gut-microbiota-and-decreasing-endotoxemia
#7
Airu Zhu, Jingjing Chen, Pengfei Wu, Mei Luo, Yilan Zeng, Han Zheng, Li Zhang, Zishou Cheng, Qun Sun, Wenwen Li, Yixiang Duan, Danmei Su, Zhixiong Xiao, Zhongping Duan, Sujun Zheng, Li Bei, Xiaohui Zhang, Zhongyuan Ju, Richard Hu, Stephen J Pandol, Yuan-Ping Han
A pandemic of metabolic diseases, consisting of type-2 diabetes, non-alcoholic fatty liver diseases (NAFLD) and obesity, has imposed critical challenges for societies worldwide, prompting investigation of underlying mechanisms and exploration of low cost and effective treatment. In this report, we demonstrate that metabolic disorders in mice generated by feeding with a high-fat diet without dietary vitamin D (HD) can be prevented by oral administration of polycationic amine resin. Oral administration of cholestyramine , but not the control uncharged polystyrene, was able to sequester negatively charged bacterial endotoxin in the gut, leading to (1) reducing plasma endotoxin levels, (2) resolving systemic inflammation and hepatic steatohepatitis,and (3) improving insulin sensitivity...
April 26, 2017: Diabetes
https://www.readbyqxmd.com/read/28445725/nlrp6-protects-il10-mice-from-colitis-by-limiting-colonization-of-akkermansia-muciniphila
#8
Sergey S Seregin, Natasha Golovchenko, Bryan Schaf, Jiachen Chen, Nicholas A Pudlo, Jonathan Mitchell, Nielson T Baxter, Lili Zhao, Patrick D Schloss, Eric C Martens, Kathryn A Eaton, Grace Y Chen
Dysfunction in host immune responses and pathologic alterations in the gut microbiota, referred to as dysbiosis, can both contribute to the development of inflammatory bowel disease (IBD). However, it remains unclear how specific changes in host immunity or the microbiota cause disease. We previously demonstrated that the loss of the innate immune receptor NLRP6 in mice resulted in impaired production of interleukin-18 (IL-18) and increased susceptibility to epithelial-induced injury. Here, we show that NLRP6 is important for suppressing the development of spontaneous colitis in the Il10(-/-) mice model of IBD and that NLRP6 deficiency results in the enrichment of Akkermansia muciniphila...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28443082/inbred-mouse-populations-exhibit-intergenerational-changes-in-intestinal-microbiota-composition-and-function-following-introduction-to-a-facility
#9
Jocelyn M Choo, Paul J Trim, Lex E X Leong, Guy C J Abell, Carly Brune, Nicole Jeffries, Steve Wesselingh, T N Dear, Marten F Snel, Geraint B Rogers
Inbred mice are used to investigate many aspects of human physiology, including susceptibility to disease and response to therapies. Despite increasing evidence that the composition and function of the murine intestinal microbiota can substantially influence a broad range of experimental outcomes, relatively little is known about microbiome dynamics within experimental mouse populations. We investigated changes in the intestinal microbiome between C57BL/6J mice spanning six generations (assessed at generations 1, 2, 3, and 6), following their introduction to a stringently controlled facility...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28431497/effect-of-ensiled-mulberry-leaves-and-sun-dried-mulberry-fruit-pomace-on-the-fecal-bacterial-community-composition-in-finishing-steers
#10
Yan Li, Qingxiang Meng, Bo Zhou, Zhenming Zhou
BACKGROUND: Here, we aimed to investigate the effects of ensiled mulberry leaves (EML) and sun-dried mulberry fruit pomace (SMFP) on fecal bacterial communities in Simmental crossbred finishing steers. To this end, the steers were reared on a standard TMR diet, standard diet containing EML, and standard diet containing SMFP. The protein and energy levels of all the diets were similar. Illumina MiSeq sequencing of the V4 region of the 16S rRNA gene and quantitative real-time PCR were used to analyze and detect the fecal bacterial community...
April 21, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28428272/hur-small-molecule-inhibitor-elicits-differential-effects-in-adenomatosis-polyposis-and-colorectal-carcinogenesis
#11
Michaela Lang, David Berry, Katharina Passecker, Ildiko Mesteri, Sabin Bhuju, Florian Ebner, Vitaly Sedlyarov, Rayko Evstatiev, Kyle Dammann, Alexander Loy, Orest Kuzyk, Pavel Kovarik, Vineeta Khare, Martin Beibel, Guglielmo Roma, Nicole Meisner-Kober, Christoph Gasche
HuR is an RNA-binding protein implicated in immune homeostasis and various cancers, including colorectal cancer. HuR binding to AU-rich elements within the 3' untranslated region of mRNAs encoding oncogenes, growth factors, and various cytokines leads message stability and translation. In this study, we evaluated HuR as a small-molecule target for preventing colorectal cancer in high-risk groups such as those with familial adenomatosis polyposis (FAP) or inflammatory bowel disease (IBD). In human specimens, levels of cytoplasmic HuR were increased in colonic epithelial cells from patients with IBD, IBD-cancer, FAP-adenoma, and colorectal cancer, but not in patients with IBD-dysplasia...
May 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28407078/inulin-with-different-degrees-of-polymerization-modulates-composition-of-intestinal-microbiota-in-mice
#12
Limeng Zhu, Song Qin, Shixiang Zhai, Yonglin Gao, Lili Li
The study aimed to analyse the global influences of dietary inulin with different degrees of polymerization (DP) on intestinal microbial communities. 6-week-old male C57BL/6J mice were treated with fructo-oligosaccharides (FOS) and inulin for 6 weeks. Fecal samples were obtained at time point 0 and 6th week. 16S rRNA sequence analysis was used to measure intestinal microbiota performed on Illumina MiSeq platform. Influences of dietary inulin on intestinal microbiota were more complex effects than bifidogenic effects, relative abundance of butyrate-producing bacteria increased after interventions...
April 12, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28382453/metabolic-adaptation-to-the-aqueous-leaf-extract-of-moringa-oleifera-lam-supplemented-diet-is-related-to-the-modulation-of-gut-microbiota-in-mice
#13
Xiaoyu Gao, Qiuhong Xie, Ling Liu, Ping Kong, Jun Sheng, Hongyu Xiang
The aqueous leaf extract of Moringa oleifera Lam. (LM-A) is reported to have many health beneficial bioactivities and no obvious toxicity, but have mild adverse effects. Little is known about the mechanism of these reported adverse effects. Notably, there has been no report about the influence of LM-A on intestinal microecology. In this study, animal experiments were performed to explore the relationships between metabolic adaptation to an LM-A-supplemented diet and gut microbiota changes. After 8-week feeding with normal chow diet, the body weight of mice entered a stable period, and one of the group received daily doses of 750-mg/kg body weight LM-A by gavage for 4 weeks (assigned as LM); the other group received the vehicle (assigned as NCD)...
April 5, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28377388/targeting-the-gut-microbiota-with-inulin-type-fructans-preclinical-demonstration-of-a-novel-approach-in-the-management-of-endothelial-dysfunction
#14
Emilie Catry, Laure B Bindels, Anne Tailleux, Sophie Lestavel, Audrey M Neyrinck, Jean-François Goossens, Irina Lobysheva, Hubert Plovier, Ahmed Essaghir, Jean-Baptiste Demoulin, Caroline Bouzin, Barbara D Pachikian, Patrice D Cani, Bart Staels, Chantal Dessy, Nathalie M Delzenne
OBJECTIVE: To investigate the beneficial role of prebiotics on endothelial dysfunction, an early key marker of cardiovascular diseases, in an original mouse model linking steatosis and endothelial dysfunction. DESIGN: We examined the contribution of the gut microbiota to vascular dysfunction observed in apolipoprotein E knockout (Apoe(-/-)) mice fed an n-3 polyunsaturated fatty acid (PUFA)-depleted diet for 12 weeks with or without inulin-type fructans (ITFs) supplementation for the last 15 days...
April 4, 2017: Gut
https://www.readbyqxmd.com/read/28350851/alcohol-related-changes-in-the-intestinal-microbiome-influence-neutrophil-infiltration-inflammation-and-steatosis-in-early-alcoholic-hepatitis-in-mice
#15
Patrick P Lowe, Benedek Gyongyosi, Abhishek Satishchandran, Arvin Iracheta-Vellve, Aditya Ambade, Karen Kodys, Donna Catalano, Doyle V Ward, Gyongyi Szabo
BACKGROUND: Alcohol-induced intestinal dysbiosis disrupts homeostatic gut-liver axis function and is essential in the development of alcoholic liver disease. Here, we investigate changes in enteric microbiome composition in a model of early alcoholic steatohepatitis and dissect the pathogenic role of intestinal microbes in alcohol-induced liver pathology. MATERIALS AND METHODS: Wild type mice received a 10-day diet that was either 5% alcohol-containing or an isocaloric control diet plus a single binge...
2017: PloS One
https://www.readbyqxmd.com/read/28349946/gut-metagenomic-analysis-reveals-prominent-roles-of-lactobacillus-and-cecal-microbiota-in-chicken-feed-efficiency
#16
Wei Yan, Congjiao Sun, Jingwei Yuan, Ning Yang
Interactions between the host and gut microbiota can affect gut metabolism. In this study, the individual performances of 252 hens were recorded to evaluate feed efficiency. Hens with contrasting feed efficiencies (14 birds per group) were selected to investigate their duodenal, cecal and fecal microbial composition by sequencing the 16S rRNA gene V4 region. The results showed that the microbial community in the cecum was quite different from those in the duodenum and feces. The highest biodiversity and all differentially abundant taxa between the different efficiency groups were observed in the cecal microbial community with false discovery rate (FDR) <0...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28346358/genomic-evidence-for-bacterial-determinants-influencing-obesity-development
#17
Raphael D Isokpehi, Shaneka S Simmons, Matilda O Johnson, Marinelle Payton
Obesity is a major global public health problem requiring multifaceted interventional approaches including dietary interventions with probiotic bacteria. High-throughput genome sequencing of microbial communities in the mammalian gastrointestinal system continues to present diverse protein function information to understand the bacterial determinants that influence obesity development. The goal of the research reported in this article was to identify biological processes in probiotic bacteria that could influence the mechanisms for the extraction of energy from diet in the human gastrointestinal system...
March 26, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28300176/nanoscale-zero-valent-iron-persulfate-enhanced-upflow-anaerobic-sludge-blanket-reactor-for-dye-removal-insight-into-microbial-metabolism-and-microbial-community
#18
Fei Pan, Xiaohan Zhong, Dongsheng Xia, Xianze Yin, Fan Li, Dongye Zhao, Haodong Ji, Wen Liu
This study investigated the efficiency of nanoscale zero-valent iron combined with persulfate (NZVI/PS) for enhanced degradation of brilliant red X-3B in an upflow anaerobic sludge blanket (UASB) reactor, and examined the effects of NZVI/PS on anaerobic microbial communities during the treatment process. The addition of NZVI (0.5 g/L) greatly enhanced the decolourization rate of X-3B from 63.8% to 98.4%. The Biolog EcoPlate(TM) technique was utilized to examine microbial metabolism in the reactor, and the Illumina MiSeq high-throughput sequencing revealed 22 phyla and 88 genera of the bacteria...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28293234/dysbiosis-of-gut-microbiota-associated-with-clinical-parameters-in-polycystic-ovary-syndrome
#19
Rui Liu, Chenhong Zhang, Yu Shi, Feng Zhang, Linxia Li, Xuejiao Wang, Yunxia Ling, Huaqing Fu, Weiping Dong, Jian Shen, Andrew Reeves, Andrew S Greenberg, Liping Zhao, Yongde Peng, Xiaoying Ding
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder in women. Gut microbiota has been implicated to play a critical role in metabolic diseases and may modulate the secretion of mediators of the brain-gut axis. Interaction between gut microbiota and the endocrine and biochemical disturbances in PCOS still remains elusive. Here, we showed an altered gut microbiota significantly correlated with PCOS phenotype. There were 33 patients with PCOS (non-obese PCOS individuals, PN, n = 12; obese PCOS individuals, PO, n = 21) as well as 15 control subjects (non-obese control individuals, CN, n = 9; obese control individuals, CO, n = 6) enrolled in our study...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28286571/we-are-not-alone-a-case-for-the-human-microbiome-in-extra-intestinal-diseases
#20
EDITORIAL
S Shivaji
BACKGROUND: "Dysbiosis" in the gut microbiome has been implicated in auto-immune diseases, in inflammatory diseases, in some cancers and mental disorders. The challenge is to unravel the cellular and molecular basis of dysbiosis so as to understand the disease manifestation. MAIN BODY: Next generation sequencing and genome enabled technologies have led to the establishment of the composition of gut microbiomes and established that "dysbiosis" is the cause of several diseases...
2017: Gut Pathogens
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