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https://www.readbyqxmd.com/read/29451876/comparative-genomic-analysis-of-the-multispecies-probiotic-marketed-product-vsl-3
#1
François P Douillard, Diego Mora, Robyn T Eijlander, Michiel Wels, Willem M de Vos
Several probiotic-marketed formulations available for the consumers contain live lactic acid bacteria and/or bifidobacteria. The multispecies product commercialized as VSL#3 has been used for treating various gastro-intestinal disorders. However, like many other products, the bacterial strains present in VSL#3 have only been characterized to a limited extent and their efficacy as well as their predicted mode of action remain unclear, preventing further applications or comparative studies. In this work, the genomes of all eight bacterial strains present in VSL#3 were sequenced and characterized, to advance insights into the possible mode of action of this product and also to serve as a basis for future work and trials...
2018: PloS One
https://www.readbyqxmd.com/read/29433221/colonic-fermentation-of-polyphenolics-from-sea-buckthorn-hippophae-rhamnoides-berries-assessment-of-effects-on-microbial-diversity-by-principal-component-analysis
#2
Sampan Attri, Kavita Sharma, Pinky Raigond, Gunjan Goel
The present study investigates the stability of polyphenolic in Sea buckthorn berries juice (SBJ) during different phases of digestion and its effect on colonic microbial diversity. At each stage, the Total polyphenolic content (TPC), Total antioxidant activity (TAA) and polyphenolic profile was determined. A 1.64 and 2.20 folds increase in TPC with 4.88 and 9.61 folds increase in TAA were observed during gastric and small intestine digestion (p<0.05) with the release of quercetin from food matrix. The digestion resulted in deformation of intact crystalline structure as indicated by scanning electron micrographs...
March 2018: Food Research International
https://www.readbyqxmd.com/read/29409330/bifidobacteria-and-its-rice-fermented-products-on-diet-induced-obese-mice-analysis-of-physical-status-serum-profile-and-gene-expressions
#3
M Ray, P K Hor, D Ojha, J P Soren, S N Singh, K C Mondal
Obesity is highly correlated with the dysbiosis of intestinal microbiota, and bifidobacteria are one of the soft targets of this metabolic syndrome. The aim of this study is to evaluate the efficacy of Bifidobacterium sp. MKK4 and rice-based fermented foods on physical, haematological, gut microbiota and lypogenic-lypolytic marker genes in diet-induced obese mice. Adult male mice (21±0.7 g) were randomly divided into four groups (n=10) according to the type of diet: normal diet (ND), high fat diet (HFD), HFD supplemented with Bifidobacterium sp...
February 7, 2018: Beneficial Microbes
https://www.readbyqxmd.com/read/29398337/the-effect-of-prunes-on-stool-output-gut-transit-time-and-gastrointestinal-microbiota-a-randomised-controlled-trial
#4
Ellen Lever, S Mark Scott, Petra Louis, Peter W Emery, Kevin Whelan
BACKGROUND & AIM: Prunes (dried plums) are perceived to maintain healthy bowel function, however their effects on gastrointestinal (GI) function are poorly researched and potential mechanisms of action are not clear. We aimed to investigate the effect of prunes on stool output, whole gut transit time (WGTT), gut microbiota and short-chain fatty acids (SCFA) in healthy adults METHODS: We conducted a parallel group, randomised controlled trial with three treatment arms in 120 healthy adults with low fibre intakes and stool frequency of 3-6 stools/wk...
February 2, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29397172/immobilization-of-whole-cells-of-lactococcus-lactis-containing-high-levels-of-a-hyperthermostable-%C3%AE-galactosidase-enzyme-in-chitosan-beads-for-efficient-galacto-oligosaccharide-production
#5
L Yu, D J O'Sullivan
Galacto-oligosaccharides (GOS) are prebiotic food ingredients that are proposed to stimulate the growth of beneficial gut microorganisms, particularly bifidobacteria. Previously, we developed a method for efficient GOS production using whole cells of Lactococcus lactis containing high levels of a hyper-thermostable β-galactosidase enzyme from Sulfolobus solfataricus. In this study, a recombinant DNA removal and whole-cell enzyme immobilization process was developed to produce GOS from lactose before removal of the immobilized whole-cell enzyme, which could be reused for subsequent applications...
January 31, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29396587/impact-of-gut-associated-bifidobacteria-and-their-phages-on-health-two-sides-of-the-same-coin
#6
REVIEW
Jennifer Mahony, Gabriele A Lugli, Douwe van Sinderen, Marco Ventura
Bifidobacteria are among the first microbial colonisers of the human infant gut post-partum. Their early appearance and dominance in the human infant gut and the reported health-promoting or probiotic status of several bifidobacterial strains has culminated in intensive research efforts that focus on their activities as part of the gut microbiota and the concomitant implications for human health. In this mini-review, we evaluate current knowledge on the genomics of this diverse bacterial genus, and on the genetic and functional adaptations that have underpinned the success of bifidobacteria in colonising the infant gut...
February 2, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29384067/interplay-of-gut-microbiota-probiotics-in-obesity-a-review
#7
Ramesh Pothuraju, Raj Kumar Sharma
Excess caloric intake and less energy expenditure (eg. physical inactivity) are associated with acquired metabolic disorders due to sedentary life style. Pharmacological treatments are less effective in preventing obesity. Type of diet influence the gut microbiome alteration and it is interrelated with obesity, insulin resistance and type 2 diabetes. Modified gut microbiota by the harmful bacterial components (eg: lipopolysaccharides) is linked with the metabolic endotoxemia (low-grade inflammation) which results in damage to the gut barrier function...
January 30, 2018: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29380644/impact-of-beneficial-bacteria-supplementation-on-the-gut-microbiota-colony-development-and-productivity-of-apis-mellifera-l
#8
D Alberoni, L Baffoni, F Gaggìa, P M Ryan, K Murphy, P R Ross, C Stanton, D Di Gioia
Honey bees are important pollinators of several crops and ecosystems, having a great ecological and economic value. In Europe, the restricted use of chemicals and therapeutic agents in the beekeeping sector has stimulated the search for natural alternatives with a special focus on gut symbionts. The modulation of the gut microbiota has been recognised as a practical and successful approach in the entomological field for the management of insect-related problems. To date, only a few studies have investigated the effect of bacterial supplementation on the health status of colonies, colony productivity and gut symbionts...
January 30, 2018: Beneficial Microbes
https://www.readbyqxmd.com/read/29379536/bifidobacteria-and-lactobacilli-in-the-gut-microbiome-of-children-with-non-alcoholic-fatty-liver-disease-which-strains-act-as-health-players
#9
Valerio Nobili, Lorenza Putignani, Antonella Mosca, Federica Del Chierico, Pamela Vernocchi, Anna Alisi, Laura Stronati, Salvatore Cucchiara, Marco Toscano, Lorenzo Drago
Introduction: Non-alcoholic fatty liver disease (NAFLD), considered the leading cause of chronic liver disease in children, can often progress from non-alcoholic fatty liver (NAFL) to non-alcoholic steatohepatitis (NASH). It is clear that obesity is one of the main risk factors involved in NAFLD pathogenesis, even if specific mechanisms have yet to be elucidated. We investigated the distribution of intestinal bifidobacteria and lactobacilli in the stools of four groups of children: obese, obese with NAFL, obese with NASH, and healthy, age-matched controls (CTRLs)...
January 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29373989/effectiveness-and-safety-of-bifidobacteria-and-berberine-in-people-with-hyperglycemia-study-protocol-for-a-randomized-controlled-trial
#10
Jie Ming, Shaoyong Xu, Chun Liu, Xiangyang Liu, Aihua Jia, Qiuhe Ji
BACKGROUND: Berberine is one of the most important examples of a Chinese traditional medicine that has hypoglycemic effects but there have been no randomized controlled trials of the drug in a larger sample. In addition, the use of probiotic biotherapy to maintain an appropriate intestinal flora may represent an effective early intervention for hyperglycemia. Unfortunately, there has been a shortage of relevant research on this possibility at the population level. This study was designed to determine the hypoglycemic effect and safety of both bifidobacteria and berberine administration to newly diagnosed patients with pre-diabetes or diabetes mellitus...
January 26, 2018: Trials
https://www.readbyqxmd.com/read/29361084/lactobacillus-brevis-kb290-with-vitamin-a-ameliorates-murine-intestinal-inflammation-associated-with-the-increase-of-cd11c-macrophage-cd103-dendritic-cell-ratio
#11
Nobuo Fuke, Tomohisa Takagi, Yasuki Higashimura, Toshifumi Tsuji, Ryohei Umeda, Katsura Mizushima, Makoto Tanaka, Hiroyuki Suganuma, Koichi Aizawa, Nobuhiro Yajima, Yuji Naito
Background: The ratio of colonic anti-inflammatory CD11c+ macrophages (MPs) to inflammatory CD103- dendritic cells (DCs) plays pivotal roles in intestinal inflammation. Little is known about how the ratio is regulated by lactic acid bacteria (LAB) and bifidobacteria (Bif). We investigated the contribution of LAB/Bif to this ratio. Methods: We established an in vitro experimental system using human myeloblastic KG-1 cells, which differentiate into CD11c+ MP-like (CD11c+ MPL) and CD103- DC-like (CD103- DCL) cells, and explored effective LAB/Bif strains...
January 18, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29356451/gene-encoding-the-ctp-synthetase-as-an-appropriate-molecular-tool-for-identification-and-phylogenetic-study-of-the-family-bifidobacteriaceae
#12
Jiří Killer, Chahrazed Mekadim, Radko Pechar, Věra Bunešová, Jakub Mrázek, Eva Vlková
An alternative molecular marker with respect to the 16S rRNA gene demonstrating better identification and phylogenetic parameters has not been designed for the whole Bifidobacteriaceae family, which includes the genus Bifidobacterium and scardovial genera. Therefore, the aim of the study was to find such a gene in available genomic sequences, suggest appropriate means and conditions for asmplification and sequencing of the desired region of the selected gene in various strains of the bacterial family and verify the importance in classification and phylogeny...
January 22, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29339281/bifidogenic-effects-of-cordyceps-sinensis-fungal-exopolysaccharide-and-konjac-glucomannan-after-ultrasound-and-acid-degradation
#13
Ang-Xin Song, Yu-Heng Mao, Ka-Chai Siu, Jian-Yong Wu
The bifidogenic effects of exopolysaccharide (EPS) of a medicinal fungus (Cordyceps sinensis) and a well-known food polysaccharide konjac glucomannan (KGM) with different molecular weight (MW) ranges were evaluated through in vitro experiments in liquid cultures of Bifidobacteria. Native EPS and KGM were partially degraded with power ultrasound (US) to improve the water solubility, and further hydrolysed with trifluoroacetic acid to much lower MW. The acid-hydrolysed fractions (EPS-AH and KGM-AH) supported the growth of all five tested bifidobacterial species, while the US-degraded high MW fractions, EPS-US and KGM-US, could only slightly supported the growth of some species...
January 12, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29299516/clinical-efficacy-of-a-topical-lactic-acid-bacterial-microbiome-in-chronic-rhinosinusitis-a-randomized-controlled-trial
#14
Anders Mårtensson, Milad Abolhalaj, Malin Lindstedt, Anette Mårtensson, Tobias C Olofsson, Alejandra Vásquez, Lennart Greiff, Anders Cervin
Objective: A locally disturbed commensal microbiome might be an etiological factor in chronic rhinosinusitis (CRS) in general and in CRS without nasal polyps (CRSsNP) in particular. Lactic acid bacteria (LAB) have been suggested to restore commensal microbiomes. A honeybee LAB microbiome consisting of various lactobacilli and bifidobacteria have been found potent against CRS pathogens in vitro. Recently, we examined effects of single nasal administrations of this microbiome in healthy subjects and found it inert...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29288684/the-octapetide-nap-alleviates-intestinal-and-extra-intestinal-anti-inflammatory-sequelae-of-acute-experimental-colitis
#15
Markus M Heimesaat, Eliezer Giladi, Anja A Kühl, Stefan Bereswill, Illana Gozes
The octapeptide NAP has been shown to exert neuroprotective properties and reduce neuro-inflammatory responses. The aim of the present study was to investigate if NAP provides anti-inflammatory effects in acute murine colitis. To address this, C57BL/6 j mice were challenged with 3.5% dextran sulfate sodium from day 0 until day 6 to induce colitis, either treated intraperitoneally with NAP or placebo (NaCl 0.9%) from day 1 until day 6 post-induction (p.i.) and subjected to in depth macroscopic, microscopic and immunological evaluations...
December 27, 2017: Peptides
https://www.readbyqxmd.com/read/29284941/a-comparative-evaluation-of-bifidobacteria-levels-in-early-childhood-caries-and-severe-early-childhood-caries
#16
Suraj Nair, V Suresh Kumar, Ramesh Krishnan, Pooja Rajan
Background: Bifidobacteria levels in saliva were found to be significantly correlated in adults with dental caries but less information available in the literature regarding its role in children. Aim: The aim is to compare the salivary levels of Bifidobacteria in children who are caries free with that of early childhood caries (ECC) and severe ECC (S-ECC). Materials and Methods: Saliva was collected using the tongue-loop method from a total of 60 children between the age group of 3-5 years and they were further divided into 3 groups...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29276171/bifidobacteria-or-fiber-protects-against-diet-induced-microbiota-mediated-colonic-mucus-deterioration
#17
Bjoern O Schroeder, George M H Birchenough, Marcus Ståhlman, Liisa Arike, Malin E V Johansson, Gunnar C Hansson, Fredrik Bäckhed
Diet strongly affects gut microbiota composition, and gut bacteria can influence the colonic mucus layer, a physical barrier that separates trillions of gut bacteria from the host. However, the interplay between a Western style diet (WSD), gut microbiota composition, and the intestinal mucus layer is less clear. Here we show that mice fed a WSD have an altered colonic microbiota composition that causes increased penetrability and a reduced growth rate of the inner mucus layer. Both barrier defects can be prevented by transplanting microbiota from chow-fed mice...
December 16, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/29246012/characterization-of-the-urinary-microbiota-of-elderly-women-and-the-effects-of-type-2-diabetes-and-urinary-tract-infections-on-the-microbiota
#18
Fengping Liu, Zongxin Ling, Yonghong Xiao, Qing Yang, Li Zheng, Ping Jiang, Lanjuan Li, Wei Wang
Evidence shows that urine has complex bacterial profiles with considerable variation between individuals. Aging and age-related conditions can lead to the changes to the composition of urine, which means that the available nutrition for bacteria in the bladder changes with age. We explored the characteristics of the urinary microbiota of elderly women and whether these are associated with age-related conditions such as diabetes and urinary tract infections. An elderly and a non-elderly cohort of women were included...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29233677/alzheimer-s-disease-and-gut-microbiota-modifications-the-long-way-between-preclinical-studies-and-clinical-evidence
#19
REVIEW
Cesare Mancuso, Rosaria Santangelo
Recent studies have suggested the role of an infectious component in the pathogenesis of Alzheimer's disease (AD). In light of this, research has focused on some bacteria constituting the intestinal microbial flora which can produce amyloid. Once generated, the latter hypothetically triggers a systemic inflammatory response which compromises complex brain functions, such as learning and memory. Clinical studies have shown that, in cognitively impaired elderly patients with brain amyloidosis, there is lower abundance in the gut of E...
December 9, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29232848/a-metagenomic-and-in-silico-functional-prediction-of-gut-microbiota-profiles-may-concur-in-discovering-new-cystic-fibrosis-patient-targeted-probiotics
#20
Pamela Vernocchi, Federica Del Chierico, Andrea Quagliariello, Danilo Ercolini, Vincenzina Lucidi, Lorenza Putignani
Cystic fibrosis (CF) is a life-limiting hereditary disorder that results in aberrant mucosa in the lungs and digestive tract, chronic respiratory infections, chronic inflammation, and the need for repeated antibiotic treatments. Probiotics have been demonstrated to improve the quality of life of CF patients. We investigated the distribution of gut microbiota (GM) bacteria to identify new potential probiotics for CF patients on the basis of GM patterns. Fecal samples of 28 CF patients and 31 healthy controls (HC) were collected and analyzed by 16S rRNA-based pyrosequencing analysis of GM, to produce CF-HC paired maps of the distribution of operational taxonomic units (OTUs), and by Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) for Kyoto Encyclopedia of Genes and Genomes (KEGG) biomarker prediction...
December 9, 2017: Nutrients
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