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Akkermansia

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https://www.readbyqxmd.com/read/28630461/antrodia-cinnamomea-reduces-obesity-and-modulates-the-gut-microbiota-in-high-fat-diet-fed-mice
#1
C-J Chang, C-C Lu, C-S Lin, J Martel, Y-F Ko, D M Ojcius, T-R Wu, Y-H Tsai, T-S Yeh, J-J Lu, H-C Lai, J D Young
BACKGROUND: Obesity is associated with gut microbiota dysbiosis, disrupted intestinal barrier and chronic inflammation. Given the high and increasing prevalence of obesity worldwide, anti-obesity treatments that are safe, effective and widely available would be beneficial. We examined whether the medicinal mushroom Antrodia cinnamomea may reduce obesity in mice fed with a high-fat diet (HFD). METHODS: Male C57BL/6J mice were fed a HFD for eight weeks to induce obesity and chronic inflammation...
June 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28630433/gut-microbiota-of-liver-transplantation-recipients
#2
Li-Ying Sun, Yun-Sheng Yang, Wei Qu, Zhi-Jun Zhu, Lin Wei, Zhi-Sheng Ye, Jian-Rui Zhang, Xiao-Ye Sun, Zhi-Gui Zeng
The characteristics of intestinal microbial communities may be affected by changes in the pathophysiology of patients with end-stage liver disease. Here, we focused on the characteristics of intestinal fecal microbial communities in post-liver transplantation (LT) patients in comparison with those in the same individuals pre-LT and in healthy individuals. The fecal microbial communities were analyzed via MiSeq-PE250 sequencing of the V4 region of 16S ribosomal RNA and were then compared between groups. We found that the gut microbiota of patients with severe liver disease who were awaiting LT was significantly different from that of healthy controls, as represented by the first principal component (p = 0...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629947/temporal-microbiota-changes-of-high-protein-diet-intake-in-a-rat-model
#3
Chunlong Mu, Yuxiang Yang, Zhen Luo, Weiyun Zhu
Alterations of specific microbes serve as important indicators that link gut health with specific diet intake. Although a six-week high-protein diet (45% protein) upregulates the pro-inflammatory response and oxidative stress in colon of rats, the dynamic alteration of gut microbiota remains unclear. To dissect temporal changes of microbiota, dynamic analyses of fecal microbiota were conducted using a rat model. Adult rats were fed a normal-protein diet or an HPD for 6 weeks, and feces collected at different weeks were used for microbiota and metabolite analysis...
June 17, 2017: Anaerobe
https://www.readbyqxmd.com/read/28618237/effect-of-sweetened-dried-cranberry-consumption-on-urinary-proteome-and-fecal-microbiome-in-healthy-human-subjects
#4
Nell Bekiares, Christian G Krueger, Jennifer J Meudt, Dhanansayan Shanmuganayagam, Jess D Reed
The relationship among diet, human health, and disease is an area of growing interest in biomarker research. Previous studies suggest that the consumption of cranberries (Vaccinium macrocarpon) could beneficially influence urinary and digestive health. The present study sought to determine if daily consumption of sweetened dried cranberries (SDC) changes the urinary proteome and fecal microbiome, as determined in a prospective sample of 10 healthy individuals. Baseline urine and fecal samples were collected from the subjects in the fasted (8-12 h) state...
June 15, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28616977/the-gastrointestinal-simulation-model-twin-shime%C3%A2-shows-differences-between-human-urolithin-metabotypes-in-gut-microbiota-composition-pomegranate-polyphenol-metabolism-and-transport-along-the-intestinal-tract
#5
Rocio Garcia-Villalba, Hanne Vissenaekens, Judit Pitart, Maria Romo-Vaquero, Juan Carlos Espín, Charlotte Grootaert, María V Selma, Katleen Raes, Guy Smagghe, Sam Possemiers, John Van Camp, Francisco A Tomas-Barberan
A TWIN-SHIME® system was used to compare the metabolism of pomegranate polyphenols by the gut microbiota from two individuals with different urolithin metabotypes. Gut microbiota, ellagitannin metabolism, short-chain fatty acids (SCFA), transport of metabolites and phase II metabolism using Caco-2 cells were explored. The simulation reproduced the in vivo metabolic profiles for each metabotype. The study shows for the first time that microbial composition, metabolism of ellagitannins and SCFA differ between metabotypes and along the large intestine...
June 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28591587/nlrp6-protects-il10-mice-from-colitis-by-limiting-colonization-of-akkermansia-muciniphila
#6
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
No abstract text is available yet for this article.
June 6, 2017: Cell Reports
https://www.readbyqxmd.com/read/28570438/surgically-induced-changes-in-gut-microbiome-and-hedonic-eating-as-related-to-weight-loss-preliminary-findings-in-obese-women-undergoing-bariatric-surgery
#7
Claudia P Sanmiguel, Jonathan Jacobs, Arpana Gupta, Tiffany Ju, Jean Stains, Kristen Coveleskie, Venu Lagishetty, Anna Balioukova, Yijun Chen, Erik Dutson, Emeran Mayer, Jennifer S Labus
OBJECTIVE: Weight-loss surgery results in significant changes in the anatomy, function and intraluminal environment of the gastrointestinal tract affecting the gut microbiome. While bariatric surgery results in sustained weight loss, decreased appetite and hedonic eating; it is unknown if the surgery-induced alterations in gut microbiota play a role in the observed changes in hedonic eating. We explored the following hypotheses 1) Laparoscopic sleeve gastrectomy results in changes in gut microbial composition ; 2) Alterations in gut microbiota are related to weight loss; 3) Alterations in gut microbiome are associated with changes in appetite and hedonic eating...
May 30, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28550049/recovery-of-ethanol-induced-akkermansia-muciniphila-depletion-ameliorates-alcoholic-liver-disease
#8
Christoph Grander, Timon E Adolph, Verena Wieser, Patrick Lowe, Laura Wrzosek, Benedek Gyongyosi, Doyle V Ward, Felix Grabherr, Romana R Gerner, Alexandra Pfister, Barbara Enrich, Dragos Ciocan, Sophie Macheiner, Lisa Mayr, Matthias Drach, Patrizia Moser, Alexander R Moschen, Gabriel Perlemuter, Gyongyi Szabo, Anne Marie Cassard, Herbert Tilg
OBJECTIVE: Alcoholic liver disease (ALD) is a global health problem with limited therapeutic options. Intestinal barrier integrity and the microbiota modulate susceptibility to ALD. Akkermansia muciniphila, a Gram-negative intestinal commensal, promotes barrier function partly by enhancing mucus production. The aim of this study was to investigate microbial alterations in ALD and to define the impact of A. muciniphila administration on the course of ALD. DESIGN: The intestinal microbiota was analysed in an unbiased approach by 16S ribosomal DNA (rDNA) sequencing in a Lieber-DeCarli ALD mouse model, and faecal A...
May 26, 2017: Gut
https://www.readbyqxmd.com/read/28530168/microbe-profile-akkermansia-muciniphila-a-conserved-intestinal-symbiont-that-acts-as-the-gatekeeper-of-our-mucosa
#9
Willem M de Vos
Akkermansia muciniphila is an abundant inhabitant of the intestinal tract of humans and many other animals. It is the sole intestinal representative of the verrucomicrobia in human stools and depleted in adults suffering from obesity, diabetes and several other diseases. A. muciniphila degrades intestinal mucin into mainly propionic and acetic acid, and lives in symbiosis with its host, marked by signalling to immune and metabolic pathways, priming trophic chains and likely providing competitive exclusion at the host-microbe interface...
May 22, 2017: Microbiology
https://www.readbyqxmd.com/read/28527760/restoration-of-cefixime-induced-gut-microbiota-changes-by-lactobacillus-cocktails-and-fructooligosaccharides-in-a-mouse-model
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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