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Probiotics

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https://www.readbyqxmd.com/read/27914002/phenotypic-and-genotypic-characterization-of-bacteriocinogenic-enterococci-against-clostridium-botulinum
#1
Awad A Shehata, Reda Tarabees, Shereen Basiouni, Mahmoud Gamil, Ahmed S Kamal, Monika Krüger
The present study aimed to characterize Enterococcus faecalis (n = -6) and Enterococcus faecium (n = 1) isolated from healthy chickens to find a novel perspective probiotic candidate that antagonize Clostridium botulinum types A, B, D, and E. The isolated enterococci were characterized based on phenotypic properties, PCR, and matrix-assisted laser desorption/ionization time of flight (MALDI-TOF). The virulence determinants including hemolytic activity on blood agar, gelatinase activity, sensitivity to vancomycin, and presence of gelatinase (gelE) and enterococcal surface protein (esp) virulence genes were investigated...
December 2, 2016: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/27913418/a-novel-rhamnose-rich-hetero-exopolysaccharide-isolated-from-lactobacillus-paracasei-dg-activates-thp-1-human-monocytic-cells
#2
Silvia Balzaretti, Valentina Taverniti, Simone Guglielmetti, Walter Fiore, Mario Minuzzo, Hansel N Ngo, Judith B Ngere, Sohaib Sadiq, Paul N Humphreys, Andrew P Laws
: Lactobacillus paracasei DG is a bacterial strain with recognized probiotic properties and is used in commercial probiotic products. However, the mechanisms underlying its probiotic properties are mainly unknown. In this study, we tested the hypothesis that the capability of strain DG to interact with the host is, at least partly, associated with its ability to synthesize a surface-associated exopolysaccharide (EPS). Comparative genomics revealed the presence of putative EPS gene clusters in DG genome; accordingly, EPS was isolated from the surface of the bacterium...
December 2, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27912759/intestinal-dysbiosis-and-allogeneic-hematopoietic-progenitor-cell-transplantation
#3
REVIEW
Vikram M Raghunathan, Iris Sheng, Seah H Lim
The intestinal microbiota is a diverse and dynamic ecosystem that is increasingly understood to play a vital role in human health. Hematopoietic stem cell transplant recipients undergo prolonged exposure to antimicrobials, chemotherapeutic agents, and immunosuppressants, resulting in profound shifts in the gut microbiome. A growing body of research has revealed the ways in which these microbiologic shifts shape immune modulation, affecting susceptibility to infections and graft-versus-host disease, the two major post-transplant complications in this population...
December 3, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27911839/identifying-species-of-symbiont-bacteria-from-the-human-gut-that-alone-can-induce-intestinal-th17-cells-in-mice
#4
Tze Guan Tan, Esen Sefik, Naama Geva-Zatorsky, Lindsay Kua, Debdut Naskar, Fei Teng, Lesley Pasman, Adriana Ortiz-Lopez, Ray Jupp, Hsin-Jung Joyce Wu, Dennis L Kasper, Christophe Benoist, Diane Mathis
Th17 cells accrue in the intestine in response to particular microbes. In rodents, segmented filamentous bacteria (SFB) induce intestinal Th17 cells, but analogously functioning microbes in humans remain undefined. Here, we identified human symbiont bacterial species, in particular Bifidobacterium adolescentis, that could, alone, induce Th17 cells in the murine intestine. Similar to SFB, B. adolescentis was closely associated with the gut epithelium and engendered cognate Th17 cells without attendant inflammation...
November 23, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27909795/altered-gut-microbiota-in-ra-implications-for-treatment
#5
Y Kang, Y Cai, X Zhang, X Kong, J Su
Rheumatoid arthritis (RA) is an autoimmune disease with progressive joint disorder. The complex interplay of genetic and environmental influences is important for the development of the disease. A growing body of evidence has shed light on the association of dysbiosis of gut microbiota with RA. Certain gut microbial strains have been shown to inhibit or attenuate immune responses in RA experimental models, suggesting that specific species among intestinal commensal bacteria may play either a pathogenic or a protective role in the development of RA...
December 1, 2016: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/27909744/in-vitro-and-in-vivo-evaluation-of-the-probiotic-attributes-of-lactobacillus-kefiranofaciens-xl10-isolated-from-tibetan-kefir-grain
#6
Zhuqing Xing, Wei Tang, Weitao Geng, Yongna Zheng, Yanping Wang
Lactobacillus kefiranofaciens XL10, with a high yield of extracellular polysaccharide (EPS), is isolated from Tibetan kefir grain and benefits the health of human beings and has been considered to exhibit probiotic potential in vitro and in vivo. The probiotic function of the strain was studied extensively, viz., acid and bile salt tolerances, cell surface hydrophobicity and autoaggregation, the modulation of gut microbiota, and the distribution and colonization of XL10 in the mouse intestinal tract after oral administration...
December 1, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27907152/dietary-probiotic-bacillus-subtilis-strain-fmbj-increases-antioxidant-capacity-and-oxidative-stability-of-chicken-breast-meat-during-storage
#7
Wen Kai Bai, Fei Jing Zhang, Tian Jin He, Peng Wei Su, Xiong Zhi Ying, Li Li Zhang, Tian Wang
This study was aimed to measure the dietary effects of probiotic Bacillus subtilis strain fmbj (BS fmbj) on antioxidant capacity and oxidative stability of chicken breast meat during storage. Treatment groups were fed the basal diet with BS fmbj at 0 g/kg (CON), 0.2 g/kg (BS-1), 0.3 g/kg (BS-2), or 0.4 g/kg (BS-3) doses without antibiotics. During 8 days of storage at 4°C, BS-2 group showed a significant improvement (P < 0.05) on meat quality (pH, Drip loss, Cooking loss, Shear force, color L*, a*, b*), free radical scavenging activity (DPPH, ABTS+, H2O2), tissues antioxidant enzyme capacity (SOD, CAT, GSH-Px, GSH, T-SH), mitochondria antioxidant enzyme capacity (MnSOD, GPx, GSH), mRNA expression of antioxidant genes (Nrf2, HO-1, SOD, CAT, GSH-Px) and mitochondrial function genes (avUCP, NRF1, NRF2, TFAM, PGC-1α), oxidative damage index (MDA, ROS, PC, 8-OHdG), and MMP level in chicken breast meat as compared to the CON group...
2016: PloS One
https://www.readbyqxmd.com/read/27906800/lactobacillus-reuteri-dsm-17938-in-the-treatment-of-functional-abdominal-pain-in-children-rct-study
#8
Oleg Jadrešin, Iva Hojsak, Zrinjka Mišak, Alemka Jaklin Kekez, Tena Trbojević, Lana Ivković, Sanja Kolaček
OBJECTIVES: Beneficial therapeutic effect of probiotics has been reported in children with the irritable bowel syndrome (IBS) but not consistently in other functional abdominal pain-related disorders. The aim of this study was to investigate the effect of Lactobacillus (L.) reuteri DSM 17938 in the treatment of functional abdominal pain (FAP) and IBS in children. METHODS: Children (age 4-18 years) referred to pediatric gastroenterologist at Children's Hospital Zagreb from May 2012 to December 2014, diagnosed as FAP or IBS, were randomized to receive L...
November 30, 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27904405/evaluation-of-prebiotic-effects-of-high-purity-galactooligosaccharides-in-vitro-and-in-vivo
#9
Ki Bae Hong, Jae Hwan Kim, Hyuk Kon Kwon, Sung Hee Han, Yooheon Park, Hyung Joo Suh
Galactooligosaccharides (GOS) are an important class of dietary prebiotics that exert beneficial effects on intestinal microbiota and gut barrier function. In this study, high-purity GOS (HP-GOS) were investigated in vitro and in vivo and confirmed as prebiotic ingredients in rat diet. HP-GOS were successfully produced using a two-step process, enzymatic hydrolysis and fermentation by yeast. They were found to serve as a good substrate and carbon source for supporting the growth of probiotic bacteria more effectively than other commercial GOS...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27904393/the-production-of-synbiotic-bread-by-microencapsulation
#10
Mojan Seyedain-Ardabili, Anousheh Sharifan, Babak Ghiassi Tarzi
Bread is a global staple food. Despite attempts to develop functional breads containing viable microorganisms, this has not been done yet because of the high temperature during baking. The aim of this study is to obtain synbiotic bread, hence hamburger bun and white pan bread were selected. Lactobacillus acidophilus LA-5 and L. casei 431 were encapsulated with calcium alginate and Hi-maize resistant starch via emulsion technique and coated with chitosan. The morphology and size of microcapsules were measured by scanning electron microscopy and particle size analyser...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27903091/quantification-of-fitc-labelled-probiotic-lactobacillus-salivarius-dspv-001p-during-gastrointestinal-transit-in-broilers
#11
J E Blajman, D M Astesana, J A Zimmermann, E Rossler, A Romero Scharpen, A P Berisvil, M V Zbrun, L P Soto, M R Rosmini, L S Frizzo
The knowledge related to the fate of probiotics in the complex environment of the intestinal microbiota in broilers is just beginning to be elucidated; however, it is not yet well understood. A good method to investigate the mechanisms by which probiotics mediate their effects is to mark probiotic bacteria and trace them. The aim of this research was to develop a new method to estimate in vivo fluorescein isothiocyanate (FITC)-labelled Lactobacillus salivarius DSPV 001P counts during passage through the gastrointestinal tract (GIT) of broilers...
December 1, 2016: Beneficial Microbes
https://www.readbyqxmd.com/read/27903090/pediococcus-acidilactici-lab4-and-lactobacillus-plantarum-lab12-assimilate-cholesterol-and-modulate-abca1-cd36-npc1l1-and-scarb1-in-vitro
#12
F T Lim, S M Lim, K Ramasamy
There is growing interest in the use of probiotic lactic acid bacteria (LAB) for prevention of hypercholesterolaemia. This study assessed the cholesterol lowering ability of Pediococcus acidilactici LAB4 and Lactobacillus plantarum LAB12 in growth media. Both LAB yielded >98% (39.2 μg/ml) cholesterol lowering in growth media. Nile Red staining indicated direct assimilation of cholesterol by the LAB. The LAB were then explored for their prophylactic (pre-treatment of HT29 cells with LAB prior to cholesterol exposure) and biotherapeutic (treatment of HT29 cells with LAB after exposure to cholesterol) use against short and prolonged exposure of HT29 cells to cholesterol, respectively...
December 1, 2016: Beneficial Microbes
https://www.readbyqxmd.com/read/27902414/modulation-of-intestinal-barrier-function-to-ameliorate-salmonella-infection-in-mice-by-oral-administration-of-fermented-milks-produced-with-lactobacillus-plantarum-mtcc-5690-a-probiotic-strain-of-indian-gut-origin
#13
Namita Rokana, Rajbir Singh, Rashmi Hogarehalli Mallappa, Virender Kumar Batish, Sunita Grover
Probiotic Lactobacillus plantarum MTCC 5690 -a probiotic strain of Indian gut origin as such and milk formulations produced with the same were explored in this sudy as biotherapeutics by evauating their functional efficacy against Salmonella infection in mice. The efficacy of milk formulations (fermented/unfermented) of MTCC 5690 for enhancement of intestinal barrier function was determined by monitoring the permeability and histopathology of intestine. The mice fed with probiotic Dahi (PD), Fermented Probiotic Drink (FD) and Sweetened fermented probiotic drink (SFD) maintained the health and integrity of intestinal epithelium in the infected mice as compared to those fed with phosphate buffered saline, milk, unfermented probiotic milk and Dahi...
October 17, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27900876/effects-of-production-methods-and-protective-ingredients-on-the-viability-of-probiotic-lactobacillus-rhamnosus-r0011-in-air-dried-alginate-beads
#14
Claude P Champagne, Yves Raymond, Yves Arcand
The goal of this study was to use a microencapsulation technology to prepare air-dried concentrated cultures of Lactobacillus rhamnosus R0011. The cultures were microencapsulated in alginate beads, which were added to a growth medium to allow cell multiplication inside the matrix; the beads were recovered, dipped in protective solutions, and air-dried. The effects of fermentation technology and of the composition of the protective solutions on subsequent survival during air-drying were examined. The cells prepared under a constant pH of 6...
August 26, 2016: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/27900619/current-perspectives-on-antihypertensive-probiotics
#15
REVIEW
Eric Banan-Mwine Daliri, Byong H Lee, Deog H Oh
Hypertension is a major risk factor for cardiovascular diseases. Optimizing blood pressure results in an overall health outcome. Over the years, the gut microbiota has been found to play a significant role in host metabolic processes, immunity, and physiology. Dietary strategies have therefore become a target for restoring disturbed gut microbiota to treat metabolic diseases. Probiotics and their fermented products have been shown in many studies to lower blood pressure by suppressing nitrogen oxide production in microphages, reducing reactive oxygen species, and enhancing dietary calcium absorption...
November 29, 2016: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/27898740/kluyveromyces-marxianus-and-saccharomyces-boulardii-induce-distinct-levels-of-dendritic-cell-cytokine-secretion-and-significantly-different-t-cell-responses-in-vitro
#16
Ida M Smith, Adam Baker, Jeffrey E Christensen, Teun Boekhout, Hanne Frøkiær, Nils Arneborg, Lene Jespersen
Interactions between members of the intestinal microbiota and the mucosal immune system can significantly impact human health, and in this context, fungi and food-related yeasts are known to influence intestinal inflammation through direct interactions with specialized immune cells in vivo. The aim of the present study was to characterize the immune modulating properties of the food-related yeast Kluyveromyces marxianus in terms of adaptive immune responses indicating inflammation versus tolerance and to explore the mechanisms behind the observed responses...
2016: PloS One
https://www.readbyqxmd.com/read/27898456/the-role-of-nonantibiotic-treatment-of-community-acquired-urinary-tract-infections
#17
Elisabetta Costantini, Konstantinos Giannitsas, Ester Illiano
PURPOSE OF REVIEW: To summarize evidence on the efficacy of nonantibiotic treatments in the prevention of recurrent urinary tract infections (UTIs). The need for antibiotic-free regimens seems to be imperative given the worldwide rates of resistance of uropathogens to available antibiotics. RECENT FINDINGS: In the recently published literature, cranberry products and probiotics are the focus of research. They both seem to be effective in preventing recurrent UTIs compared with placebo, but their benefit becomes less clear when they are compared with antibiotics...
November 24, 2016: Current Opinion in Urology
https://www.readbyqxmd.com/read/27898455/clinical-implications-of-the-microbiome-in-urinary-tract-diseases
#18
Andreas Hiergeist, André Gessner
PURPOSE OF REVIEW: The purpose of this review is to outline and evaluate the most recent literature on the role of the microbiome in urinary tract diseases. RECENT FINDINGS: High throughput molecular DNA sequencing of bacterial 16S rRNA genes enabled the analysis of complex microbial communities inhabiting the human urinary tract. Several recent studies have identified bacterial taxa of the urinary microbiome to impact urinary tract diseases including interstitial cystitis, urgency urinary incontinence or calcium oxalate stone formation...
November 24, 2016: Current Opinion in Urology
https://www.readbyqxmd.com/read/27895415/factoring-the-intestinal-microbiome-into-the-pathogenesis-of-autoimmune-hepatitis
#19
EDITORIAL
Albert J Czaja
The intestinal microbiome is a reservoir of microbial antigens and activated immune cells. The aims of this review were to describe the role of the intestinal microbiome in generating innate and adaptive immune responses, indicate how these responses contribute to the development of systemic immune-mediated diseases, and encourage investigations that improve the understanding and management of autoimmune hepatitis. Alterations in the composition of the intestinal microflora (dysbiosis) can disrupt intestinal and systemic immune tolerances for commensal bacteria...
November 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27894832/development-of-a-rapid-one-step-screening-method-for-the-isolation-of-presumptive-proteolytic-enterococci
#20
Ken Graham, Rosemary Rea, Paul Simpson, Helena Stack
Enterococci show higher proteolytic activities than other lactic acid bacteria and thus have received considerable attention in scientific literature in recent years. Proteolytic enzymes of enterococci have warranted the use of some species as starter, adjuncts or protective cultures and as probiotics, while in some strains they have also been linked with virulence. Consequently, the isolation and identification of proteolytic enterococci is becoming of increasing interest and importance. However, current screening methods for proteolytic enterococci can be time consuming, requiring a two-step procedure which may take up to 96h...
November 25, 2016: Journal of Microbiological Methods
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