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https://www.readbyqxmd.com/read/29341443/stachyose-improves-inflammation-through-modulating-gut-microbiota-of-high-fat-diet-streptozotocin-induced-type-2-diabetes-in-rats
#1
Guimei Liu, Jia Bei, Li Liang, Guoyong Yu, Lu Li, Quanhong Li
SCOPE: The present study was undertaken to assess the effects of stachyose (STS) on type 2 diabetes in rats, and changes in the gut microbiota compared to metformin (MET). METHODS AND RESULTS: The type 2 diabetic model was successfully established via a high-fat diet (HFD) / streptozotocin (STZ) in Wistar rats, and STS or MET was administered for 4 weeks. Blood was collected to analyze biochemical parameters, pancreas for mRNA expression of related gene and contents of colon for gut microbiota...
January 16, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29322139/effects-of-polysaccharides-from-purple-sweet-potatoes-on-immune-response-and-gut-microbiota-composition-in-normal-and-cyclophosphamide-treated-mice
#2
Chao Tang, Jian Sun, Bo Zhou, Changhai Jin, Jun Liu, Juan Kan, Chunlu Qian, Nianfeng Zhang
In this study, three polysaccharides including water-soluble polysaccharide (WSP), dilute alkali-soluble polysaccharide (DASP) and concentrated alkali-soluble polysaccharide (CASP) were extracted from purple sweet potatoes and then administered to normal and cyclophosphamide (CTX) treated mice by gavage. The results showed that WSP and CASP could restore the spleen index and immune cytokine (IL-2 and IL-6) levels in CTX treated mice, while DASP could enhance the levels of TNF-α, IL-2 and IL-6. As compared to the normal control group, WSP and CASP treatment groups exhibited increased levels of Bacteroidetes, Lachnospiraceae and Oscillospira, but decreased levels of Firmicutes, Alcaligenaceae and Sutterella in normal mice...
January 11, 2018: Food & Function
https://www.readbyqxmd.com/read/29194468/characteristics-of-fecal-microbiota-in-pediatric-crohn-s-disease-and-their-dynamic-changes-during-infliximab-therapy
#3
Yizhong Wang, Xuefeng Gao, Amine Ghozlane, Hui Hu, Xiaolu Li, Yongmei Xiao, Dan Li, Guangjun Yu, Ting Zhang
Background: Crohn's disease [CD] is known to be associated with gut microbial dysbiosis. Infliximab [IFX] is increasingly used to treat pediatric CD, however it is not clear how gut microbiota is modified during IFX treatment. The aim of this study was to characterize the fecal microbiota community composition in pediatric CD patients and to assess its dynamic changes during IFX therapy. Methods: 16S rRNA sequencing approach was applied to determine the compositions of microbial communities in fecal samples...
November 29, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29017628/effects-of-microencapsulated-lactobacillus-plantarum-lip-1-on-the-gut-microbiota-of-hyperlipidaemic-rats
#4
Jiao J Song, Wen J Tian, Lai-Yu Kwok, Ya L Wang, Yi N Shang, Bilige Menghe, Jun G Wang
The in vivo effects of administering free and microencapsulated Lactobacillus plantarum LIP-1 cells (2·0×109 colony-forming units/d) were evaluated in high-fat-diet-induced hyperlipidaemic rats. Results from real-time quantitative PCR targeting to LIP-1 cells showed a higher colon colonisation count of LIP-1 in the rats receiving microencapsulated cells compared with free cells (P<0·05). Moreover, the microencapsulated LIP-1 treatment resulted in a more obvious lipid-lowering effect (P<0·05). Meanwhile, their faecal samples had significantly less lipopolysaccharide-producing bacteria (especially Bilophila, Sutterella and Oscillibacter) and mucosa-damaging bacteria (Bilophila and Akkermansia muciniphila), whereas significantly more SCFA-producing bacteria (P<0·05) (namely Lactobacillus, Alloprevotella, Coprococcus, Eubacterium and Ruminococcus) and bacteria that potentially possessed bile salt hydrolase activity (Bacteroides, Clostridium, Eubacterium and Lactobacillus), and other beneficial bacteria (Alistipes and Turicibacter)...
October 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28994235/lipo-protein-emulsion-structure-in-the-diet-affects-protein-digestion-kinetics-intestinal-mucosa-parameters-and-microbiota-composition
#5
Marion Oberli, Véronique Douard, Martin Beaumont, Daphné Jaoui, Fabienne Devime, Sandy Laurent, Catherine Chaumontet, Damien Mat, Steven Le Feunteun, Camille Michon, Anne-Marie Davila, Gilles Fromentin, Daniel Tomé, Isabelle Souchon, Marion Leclerc, Claire Gaudichon, François Blachier
SCOPE: Food structure is a key factor controlling digestion and nutrient absorption. We tested the hypothesis that protein emulsion structure in the diet may affect digestive and absorptive processes. METHODS & RESULTS: Rats (n = 40) were fed for 3 weeks two diets chemically identical but based on lipid-protein liquid-fine (LFE) or gelled-coarse (GCE) emulsions that differ at the macro- and micro-structure levels. After an overnight fasting, they ingested a (15) N-labeled LFE or GCE test meal and were euthanized 0, 15min, 1h and 5h later...
October 10, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28893994/gut-microbiota-from-multiple-sclerosis-patients-enables-spontaneous-autoimmune-encephalomyelitis-in-mice
#6
Kerstin Berer, Lisa Ann Gerdes, Egle Cekanaviciute, Xiaoming Jia, Liang Xiao, Zhongkui Xia, Chuan Liu, Luisa Klotz, Uta Stauffer, Sergio E Baranzini, Tania Kümpfel, Reinhard Hohlfeld, Gurumoorthy Krishnamoorthy, Hartmut Wekerle
There is emerging evidence that the commensal microbiota has a role in the pathogenesis of multiple sclerosis (MS), a putative autoimmune disease of the CNS. Here, we compared the gut microbial composition of 34 monozygotic twin pairs discordant for MS. While there were no major differences in the overall microbial profiles, we found a significant increase in some taxa such as Akkermansia in untreated MS twins. Furthermore, most notably, when transplanted to a transgenic mouse model of spontaneous brain autoimmunity, MS twin-derived microbiota induced a significantly higher incidence of autoimmunity than the healthy twin-derived microbiota...
October 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28842640/cross-sectional-evaluation-of-the-gut-microbiome-metabolome-axis-in-an-italian-cohort-of-ibd-patients
#7
Maria Laura Santoru, Cristina Piras, Antonio Murgia, Vanessa Palmas, Tania Camboni, Sonia Liggi, Ivan Ibba, Maria Antonia Lai, Sandro Orrù, Anna Lisa Loizedda, Julian Leether Griffin, Paolo Usai, Pierluigi Caboni, Luigi Atzori, Aldo Manzin
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract of uncertain origin, which includes ulcerative colitis (UC) and Crohn's disease (CD). The composition of gut microbiota may change in IBD affected individuals, but whether dysbiosis is the cause or the consequence of inflammatory processes in the intestinal tissue is still unclear. Here, the composition of the microbiota and the metabolites in stool of 183 subjects (82 UC, 50 CD, and 51 healthy controls) were determined...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801639/investigation-into-the-stability-and-culturability-of-chinese-enterotypes
#8
Yeshi Yin, Bin Fan, Wei Liu, Rongrong Ren, Huahai Chen, Shaofeng Bai, Liying Zhu, Gang Sun, Yunsheng Yang, Xin Wang
Although many gut microbial enterotypes have been reported in Europe, Africa and the U.S., their effects on human health are still not yet clear. Culturing gut microbial enterotypes in vitro will be helpful to study their effects and applications. Here, fecal samples from 13 healthy Chinese volunteers were collected and subjected to next-generation sequencing. The results showed that seven of these samples belong to the Bacteroides enterotype and another six to the Prevotella enterotype. Stability of these Chinese gut microbial enterotypes was also evaluated...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28783713/aging-and-sarcopenia-associate-with-specific-interactions-between-gut-microbes-serum-biomarkers-and-host-physiology-in-rats
#9
Jay Siddharth, Anirikh Chakrabarti, Alice Pannérec, Sonia Karaz, Delphine Morin-Rivron, Mojgan Masoodi, Jerome N Feige, Scott James Parkinson
The microbiome has been demonstrated to play an integral role in the maintenance of many aspects of health that are also associated with aging. In order to identify areas of potential exploration and intervention, we simultaneously characterized age-related alterations in gut microbiome, muscle physiology and serum proteomic and lipidomic profiles in aged rats to define an integrated signature of the aging phenotype. We demonstrate that aging skews the composition of the gut microbiome, in particular by altering the Sutterella to Barneseilla ratio, and alters the metabolic potential of intestinal bacteria...
July 17, 2017: Aging
https://www.readbyqxmd.com/read/28740260/richer-gut-microbiota-with-distinct-metabolic-profile-in-hiv-infected-elite-controllers
#10
Jan Vesterbacka, Javier Rivera, Kajsa Noyan, Mariona Parera, Ujjwal Neogi, Malu Calle, Roger Paredes, Anders Sönnerborg, Marc Noguera-Julian, Piotr Nowak
Gut microbiota dysbiosis features progressive HIV infection and is a potential target for intervention. Herein, we explored the microbiome of 16 elite controllers (EC), 32 antiretroviral therapy naive progressors and 16 HIV negative controls. We found that the number of observed genera and richness indices in fecal microbiota were significantly higher in EC versus naive. Genera Succinivibrio, Sutterella, Rhizobium, Delftia, Anaerofilum and Oscillospira were more abundant in EC, whereas Blautia and Anaerostipes were depleted...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28603641/dakarella-massiliensis-gen-nov-sp-nov-strain-nd3-t-a-new-bacterial-genus-isolated-from-the-female-genital-tract
#11
N Dione, J Rathored, E Tomei, J-C Lagier, S Khelaifia, C Robert, F Bretelle, D Raoult, P-E Fournier, F Fenollar
Strain ND3(T) was isolated from the genital tract of a 28-year-old woman with bacterial vaginosis. This strain exhibited a 16S rRNA gene sequence similarity of 92.4% with Sutterella wadsworthensis, the phylogenetically closest species with standing in nomenclature. Strain ND3(T) was a strictly anaerobic Gram-negative rod and member of the family Sutterellaceae. It exhibited a genome of 2 476 884 bp containing 2175 protein-coding and 62 RNA genes. On the basis of these data, we propose the creation of 'Dakarella massiliensis' sp...
July 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28409003/-collinsella-phocaeensis-sp-nov-clostridium-merdae-sp-nov-sutterella-massiliensis-sp-nov-sutturella-timonensis-sp-nov-enorma-phocaeensis-sp-nov-mailhella-massiliensis-gen-nov-sp-nov-mordavella-massiliensis-gen-nov-sp-nov-and-massiliprevotella-massiliensis-gen
#12
S Ndongo, F Cadoret, G Dubourg, J Delerce, P-E Fournier, D Raoult, J-C Lagier
Here we report of summary of the characteristics of 'Collinsella phocaeensis' strain Marseille-P3245(T) sp. nov., 'Clostridium merdae' strain Marseille-P2953(T), 'Sutterella massiliensis' strain Marseille-P2435(T) sp. nov., 'Sutturella timonensis' strain Marseille-P3282(T) sp. nov., 'Enorma phocaeensis' Marseille-P3242(T) sp. nov., 'Mailhella massiliensis' strain Marseille-P3199(T) gen. nov., sp. nov., 'Mordavella massiliensis' strain Marseille-P3246(T) sp. nov. and 'Massiliprevotella massiliensis' strain Marseille-P2439(T) sp...
May 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28392784/structure-and-function-of-the-fecal-microbiota-in-diarrheic-neonatal-piglets
#13
Qiaoli Yang, Xiaoyu Huang, Shengguo Zhao, Wenyang Sun, Zunqiang Yan, Pengfei Wang, Shenggui Li, Wangzhou Huang, Shengwei Zhang, Lixia Liu, Shuangbao Gun
Diarrhea is a leading cause of increased mortality in neonatal and young piglets. Aberration of the gut microbiota is one important factor in the etiology of piglet diarrhea. However, information regarding the structure and function of the gut microbiome in diarrheic neonatal piglets is limited. To investigate the composition and functional potential of the fecal microbiota in neonatal piglets, we performed 16S rRNA gene sequencing on 20 fecal samples from diarrheic piglets and healthy controls, and metagenomics sequencing on a subset of six samples...
2017: Frontiers in Microbiology
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
#14
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)...
June 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28349974/sex-related-alterations-of-gut-microbiota-composition-in-the-btbr-mouse-model-of-autism-spectrum-disorder
#15
Lorena Coretti, Claudia Cristiano, Ermanno Florio, Giovanni Scala, Adriano Lama, Simona Keller, Mariella Cuomo, Roberto Russo, Raffaela Pero, Orlando Paciello, Giuseppina Mattace Raso, Rosaria Meli, Sergio Cocozza, Antonio Calignano, Lorenzo Chiariotti, Francesca Lembo
Alterations of microbiota-gut-brain axis have been invoked in the pathogenesis of autism spectrum disorders (ASD). Mouse models could represent an excellent tool to understand how gut dysbiosis and related alterations may contribute to autistic phenotype. In this study we paralleled gut microbiota (GM) profiles, behavioral characteristics, intestinal integrity and immunological features of colon tissues in BTBR T + tf/J (BTBR) inbred mice, a well established animal model of ASD. Sex differences, up to date poorly investigated in animal models, were specifically addressed...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28275689/distinct-microbiome-neuroimmune-signatures-correlate-with%C3%A2-functional-abdominal-pain-in-children-with-autism-spectrum-disorder
#16
Ruth Ann Luna, Numan Oezguen, Miriam Balderas, Alamelu Venkatachalam, Jessica K Runge, James Versalovic, Jeremy Veenstra-VanderWeele, George M Anderson, Tor Savidge, Kent C Williams
BACKGROUND & AIMS: Emerging data on the gut microbiome in autism spectrum disorder (ASD) suggest that altered host-microbe interactions may contribute to disease symptoms. Although gut microbial communities in children with ASD are reported to differ from individuals with neurotypical development, it is not known whether these bacteria induce pathogenic neuroimmune signals. METHODS: Because commensal clostridia interactions with the intestinal mucosa can regulate disease-associated cytokine and serotonergic pathways in animal models, we evaluated whether microbiome-neuroimmune profiles (from rectal biopsy specimens and blood) differed in ASD children with functional gastrointestinal disorders (ASD-FGID, n = 14) compared with neurotypical (NT) children with FGID (NT-FGID, n = 15) and without abdominal pain (NT, n = 6)...
March 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28249783/diet-driven-microbiota-dysbiosis-is-associated-with-vagal-remodeling-and-obesity
#17
Tanusree Sen, Carolina R Cawthon, Benjamin Thomas Ihde, Andras Hajnal, Patricia M DiLorenzo, Claire B de La Serre, Krzysztof Czaja
Obesity is one of the major health issues in the United States. Consumption of diets rich in energy, notably from fats and sugars (high-fat/high-sugar diet: HF/HSD) is linked to the development of obesity and a popular dietary approach for weight loss is to reduce fat intake. Obesity research traditionally uses low and high fat diets and there has been limited investigation of the potential detrimental effects of a low-fat/high-sugar diet (LF/HSD) on body fat accumulation and health. Therefore, in the present study, we investigated the effects of HF/HSD and LF/HSD on microbiota composition, gut inflammation, gut-brain vagal communication and body fat accumulation...
May 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28219687/structural-modulation-of-gut-microbiota-during-alleviation-of-antibiotic-associated-diarrhea-with-herbal-formula
#18
Weijie Lv, Cui Liu, Chunxin Ye, Jiaqi Sun, Xiaowen Tan, Chao Zhang, Qian Qu, Dayou Shi, Shining Guo
The gut microbiome is hypothesized to play a critical role in gastrointestinal diseases, including antibiotic-associated diarrhea (AAD). To determine whether the traditional Chinese herbal formula of Shen Ling Bai Zhu San (SLBZS) modulates the composition of the gut microbiome during AAD treatment, an AAD diarrhea model was prepared in rats by gastric gavage with lincomycin for 7 successive days, followed by administration of SLBZS for one week. At all time points after the SLBZS treatment, the diarrhea rates were significantly or at least numerically lower than that of the untreated model group...
December 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28197578/chemical-characterization-of-the-glycated-myofibrillar-proteins-from-grass-carp-ctenopharyngodon-idella-and-their-impacts-on-the-human-gut-microbiota-in-vitro-fermentation
#19
Kaining Han, Ye Yao, Shiyuan Dong, Sun Jin, Hang Xiao, Haohao Wu, Mingyong Zeng
In this study, the chemical characterization of glycoconjugates of myofibrillar proteins from grass carp conjugated with glucose via Maillard reaction for up to 24 h of dry-heating was investigated, and their impacts on the microbial community in vitro human fecal fermentation were firstly evaluated by high-throughput sequencing technologies. The glycation greatly increased the furosine levels in glycoconjugates, which reached the maximum level (2.87 ± 0.08 mg per 100 mg protein) for 9 h of heating, and resulted in the structural changes of myofibrillar proteins based on the sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and Fourier transform infrared spectroscopy (FTIR) analysis...
March 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28178201/rett-syndrome-a-focus-on-gut-microbiota
#20
Elisa Borghi, Francesca Borgo, Marco Severgnini, Miriam Nella Savini, Maria Cristina Casiraghi, Aglaia Vignoli
Rett syndrome (RTT) is an X-linked neurodevelopmental disorder affecting 1 in 10,000 live female births. Changes in microbiota composition, as observed in other neurological disorders such as autism spectrum disorders, may account for several symptoms typically associated with RTT. We studied the relationship between disease phenotypes and microbiome by analyzing diet, gut microbiota, and short-chain fatty acid (SCFA) production. We enrolled eight RTT patients and 10 age- and sex-matched healthy women, all without dietary restrictions...
February 7, 2017: International Journal of Molecular Sciences
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