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https://www.readbyqxmd.com/read/29702167/pumpkin-polysaccharide-modifies-the-gut-microbiota-during-alleviation-of-type-2-diabetes-in-rats
#1
Guimei Liu, Li Liang, Guoyong Yu, Quanhong Li
Pumpkin polysaccharide is able to alleviate diabetes, but understanding of the underlining mechanism is still limited. In this study, we hypothesized that the alleviating effects of pumpkin polysaccharide is modulated via changes in the gut microbiota and short-chain fatty acid (SCFA) production in type 2 diabetic rats. After the type 2 diabetic model successfully was established, three groups of high-fat diet induced diabetic rats were intragastrically administered pumpkin polysaccharide, metformin, or saline solution respectively...
April 24, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29668250/the-effects-of-baicalein-on-cortical-pro-inflammatory-cytokines-and-the-intestinal-microbiome-in-senescence-accelerated-mouse-prone-8
#2
Li Gao, Jia-Qi Li, Yu-Zhi Zhou, Xudong Huang, Xue-Mei Qin, Guan-Hua Du
Baicalein, a flavonoid derived from the roots of Scutellariae baicalensis Georgi, has shown health benefits for an array of human diseases including dementia. The senescence-accelerated mouse prone 8 (SAMP8) strain is extensively used as a senile dementia model. To further investigate the effects of baicalein in SAMP8 mice, behavioral testing, biochemical detection and gut microbiota analysis were performed. The results demonstrated that treatment with baicalein ameliorated the senescence status of the SAMP8 mice, as manifested by reducing the grading score of senescence...
April 18, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29575030/shifts-in-gut-microbiota-composition-in-an-app-pss1-transgenic-mouse-model-of-alzheimer-s-disease-during-lifespan
#3
Christine Bäuerl, M Carmen Collado, Ana Diaz Cuevas, José Viña, Gaspar Pérez Martínez
Alzheimer's disease (AD) is the most common form of dementia and one of the major causes of disability and dependency in older people. Accumulating evidences link gut microbiota with different diseases and its relationship with neurodegenerative diseases is becoming most intriguing. This study was aimed to compare the gut microbiota of transgenic APP/PS1 (TG) mice, a well-established deterministic mouse model of AD, with their C57BL/6 wild-type (WT) littermates. Faecal samples were collected from 3, 6 and 24 months old mice and analysed by pyrosequencing of the V1-V3 region of the bacterial 16S rRNA genes...
March 25, 2018: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/29572539/methodology-challenges-in-studying-human-gut-microbiota-effects-of-collection-storage-dna-extraction-and-next-generation-sequencing-technologies
#4
Marina Panek, Hana Čipčić Paljetak, Anja Barešić, Mihaela Perić, Mario Matijašić, Ivana Lojkić, Darija Vranešić Bender, Željko Krznarić, Donatella Verbanac
The information on microbiota composition in the human gastrointestinal tract predominantly originates from the analyses of human faeces by application of next generation sequencing (NGS). However, the detected composition of the faecal bacterial community can be affected by various factors including experimental design and procedures. This study evaluated the performance of different protocols for collection and storage of faecal samples (native and OMNIgene.GUT system) and bacterial DNA extraction (MP Biomedicals, QIAGEN and MO BIO kits), using two NGS platforms for 16S rRNA gene sequencing (Ilumina MiSeq and Ion Torrent PGM)...
March 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29556409/-collinsella-provencensis-sp-nov-parabacteroides-bouchesdurhonensis-sp-nov-and-sutterella-seckii-sp-nov-three-new-bacterial-species-identified-from-human-gut-microbiota
#5
N Dione, I I Ngom, C Valles, F Cadoret, P E Fournier, D Raoult, J C Lagier
We report here the main characteristics of 'Collinsella provencensis' strain Marseille-P3740 (CSUR P3740), 'Parabacteroides bouchesdurhonensis' strain Marseille-P3763 (CSUR P3763) and 'Sutterella seckii' strain Marseille-P3660 (CSUR P3660), which were isolated using culturomics from the human gut microbiota of healthy individuals living in Marseille.
May 2018: New Microbes and New Infections
https://www.readbyqxmd.com/read/29545946/supplementation-of-amylase-combined-with-glucoamylase-or-protease-changes-intestinal-microbiota-diversity-and-benefits-for-broilers-fed-a-diet-of-newly-harvested-corn
#6
Dafei Yin, Xiaonan Yin, Xingyu Wang, Zhao Lei, Maofei Wang, Yuming Guo, Samuel E Aggrey, Wei Nie, Jianmin Yuan
Background: The effect of amylases combined with exogenous carbohydrase and protease in a newly harvested corn diet on starch digestibility, intestine health and cecal microbiota was investigated in broiler chickens. Methods: Two hunderd and eighty-eight 5-day-old female chickens were randomly divided into six treatments: a newly harvested corn-soybean meal diet (control); control supplemented with 1,500 U/g α-amylase (Enzyme A); Enzyme A + 300 U/g amylopectase + 20,000 U/g glucoamylase (Enzyme B); Enzyme B + protease 10,000 U/g (Enzyme C); Enzyme C + xylanase 15,000 U/g (Enzyme D); and Enzyme D + cellulase 200 U/g + pectinase 1,000 U/g (Enzyme E)...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29449892/possible-correlation-between-gut-microbiota-and-immunity-among-healthy-middle-aged-and-elderly-people-in-southwest-china
#7
Xi Shen, Junjie Miao, Qun Wan, Shuyue Wang, Ming Li, Fangfang Pu, Guoqing Wang, Wei Qian, Qian Yu, Francesco Marotta, Fang He
Background: The present study was conducted to investigate the possible association between gut microbes and immunity among healthy middle-aged and elderly individuals in southwest China. A total of 148 healthy adults aged ≥ 50 years were divided into two age groups: middle-aged group (50-59 years; n = 67, 54.13 ± 3.32) and elderly group (≥ 60 years; n = 81, 64.70 ± 3.93). Blood samples were collected to measure serum immune and biochemical indices. Gut microbiota compositions of the groups were characterized on the basis of faecal DNA using 16S rRNA gene sequencing...
2018: Gut Pathogens
https://www.readbyqxmd.com/read/29379988/aberrant-intestinal-microbiota-in-individuals-with-prediabetes
#8
Kristine H Allin, Valentina Tremaroli, Robert Caesar, Benjamin A H Jensen, Mads T F Damgaard, Martin I Bahl, Tine R Licht, Tue H Hansen, Trine Nielsen, Thomas M Dantoft, Allan Linneberg, Torben Jørgensen, Henrik Vestergaard, Karsten Kristiansen, Paul W Franks, Torben Hansen, Fredrik Bäckhed, Oluf Pedersen
AIMS/HYPOTHESIS: Individuals with type 2 diabetes have aberrant intestinal microbiota. However, recent studies suggest that metformin alters the composition and functional potential of gut microbiota, thereby interfering with the diabetes-related microbial signatures. We tested whether specific gut microbiota profiles are associated with prediabetes (defined as fasting plasma glucose of 6.1-7.0 mmol/l or HbA1c of 42-48 mmol/mol [6.0-6.5%]) and a range of clinical biomarkers of poor metabolic health...
April 2018: Diabetologia
https://www.readbyqxmd.com/read/29341443/stachyose-improves-inflammation-through-modulating-gut-microbiota-of-high-fat-diet-streptozotocin-induced-type-2-diabetes-in-rats
#9
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
#10
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...
February 21, 2018: Food & Function
https://www.readbyqxmd.com/read/29194468/characteristics-of-faecal-microbiota-in-paediatric-crohn-s-disease-and-their-dynamic-changes-during-infliximab-therapy
#11
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 paediatric CD; however, it is not clear how the gut microbiota is modified during IFX treatment. The aim of this study was to characterise the faecal microbiota community composition in paediatric CD patients and to assess its dynamic changes during IFX therapy. Methods: A 16S rRNA sequencing approach was applied to determine the compositions of microbial communities in faecal samples...
February 28, 2018: 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
#12
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
#13
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 test the hypothesis that protein emulsion structure in the diet may affect digestive and absorptive processes. METHODS & RESULTS: Rats (n = 40) are fed for 3 weeks with two diets chemically identical but based on lipid-protein liquid-fine (LFE) or gelled-coarse (GCE) emulsions that differ at the macro- and microstructure levels. After an overnight fasting, they ingest a15 N-labeled LFE or GCE test meal and are euthanized 0, 15 min, 1 h, and 5 h later...
January 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28893994/gut-microbiota-from-multiple-sclerosis-patients-enables-spontaneous-autoimmune-encephalomyelitis-in-mice
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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