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https://www.readbyqxmd.com/read/28099447/genome-wide-immune-modulation-of-tlr3-mediated-inflammation-in-intestinal-epithelial-cells-differs-between-single-and-multi-strain-probiotic-combination
#1
Chad W MacPherson, Padmaja Shastri, Olivier Mathieu, Thomas A Tompkins, Pierre Burguière
Genome-wide transcriptional analysis in intestinal epithelial cells (IEC) can aid in elucidating the impact of single versus multi-strain probiotic combinations on immunological and cellular mechanisms of action. In this study we used human expression microarray chips in an in vitro intestinal epithelial cell model to investigate the impact of three probiotic bacteria, Lactobacillus helveticus R0052 (Lh-R0052), Bifidobacterium longum subsp. infantis R0033 (Bl-R0033) and Bifidobacterium bifidum R0071 (Bb-R0071) individually and in combination, and of a surface-layer protein (SLP) purified from Lh-R0052, on HT-29 cells' transcriptional profile to poly(I:C)-induced inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28097073/handling-stress-may-confound-murine-gut-microbiota-studies
#2
Cary R Allen-Blevins, Xiaomeng You, Katie Hinde, David A Sela
BACKGROUND: Accumulating evidence indicates interactions between human milk composition, particularly sugars (human milk oligosaccharides or HMO), the gut microbiota of human infants, and behavioral effects. Some HMO secreted in human milk are unable to be endogenously digested by the human infant but are able to be metabolized by certain species of gut microbiota, including Bifidobacterium longum subsp. infantis (B. infantis), a species sensitive to host stress (Bailey & Coe, 2004). Exposure to gut bacteria like B...
2017: PeerJ
https://www.readbyqxmd.com/read/28094284/the-composition-of-human-milk-and-infant-faecal-microbiota-over-the-first-three-months-of-life-a-pilot-study
#3
Kiera Murphy, David Curley, Tom F O'Callaghan, Carol-Anne O'Shea, Eugene M Dempsey, Paul W O'Toole, R Paul Ross, C Anthony Ryan, Catherine Stanton
Human milk contains a diverse array of bioactives and is also a source of bacteria for the developing infant gut. The aim of this study was to characterize the bacterial communities in human milk and infant faeces over the first 3 months of life, in 10 mother-infant pairs. The presence of viable Bifidobacterium and Lactobacillus in human milk was also evaluated. MiSeq sequencing revealed a large diversity of the human milk microbiota, identifying over 207 bacterial genera in milk samples. The phyla Proteobacteria and Firmicutes and the genera Pseudomonas, Staphylococcus and Streptococcus were the predominant bacterial groups...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28079729/effect-of-probiotics-on-diarrhea-in-children-with-severe-acute-malnutrition-a-randomized-controlled-study-in-uganda
#4
Benedikte Grenov, Hanifa Namusoke, Betty Lanyero, Nicolette Nabukeera-Barungi, Christian Ritz, Christian Mølgaard, Henrik Friis, Kim F Michaelsen
OBJECTIVES: To assess the effect of probiotics on diarrhea during in- and outpatient treatment of children with severe acute malnutrition (SAM). METHODS: A randomized, double-blind, placebo-controlled study was conducted involving 400 children admitted with SAM. Patients received one daily dose of a blend of Bifidobacterium animalis subsp. lactis (BB-12) and Lactobacillus rhamnosus (LGG) (10 billion colony-forming units, 50:50) or placebo during hospitalization followed by an 8-12 week outpatient treatment period, depending on patients' recovery rate...
January 11, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28071015/the-changes-of-proteins-fractions-shares-in-milk-and-fermented-milk-drinks
#5
Genowefa Bonczar, Maria Walczycka, Iwona Duda
BACKGROUND: The aim of this research was to observe the changes which take place in the electrophoretic picture of milk proteins after pasteurisation and inoculation with different starter cultures (both traditional and probiotic). After incubation, the yoghurt, kefir, acidified milk, fermented Bifidobacterium bifidum drink and Lactobacillus acidophillus drink were chilled for 14 days to observe the changes which occurred. METHODS: The research materials were raw and pasteurised milk, as well as fermented milk- based drinks...
October 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28071005/fermentation-optimization-of-goat-milk-with-lactobacillus-acidophilus-and-bifidobacterium-bifidum-by-box-behnken-design
#6
Guowei Shu, Chunju Bao, He Chen, Changfeng Wang, Hui Yang
BACKGROUND: Goat milk is only limited to the processing of goat milk powder and liquid milk, the products are mainly about milk powder and a few of them are made as milk tablet. Therefore, the study of probiotic goat milk will have great significance in the full use of goats and the development of the goat milk industry in China. METHODS: The effect of fermentation temperature (35°C, 37°C, 39°C), strain ratio (1:1:1, 2:1:1, 3:1:1) and inoculum size (4%, 5%, 6%) on viable counts of L...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28070662/investigation-of-the-instability-and-low-water-kefir-grain-growth-during-an-industrial-water-kefir-fermentation-process
#7
David Laureys, Amandine Van Jean, Jean Dumont, Luc De Vuyst
A poorly performing industrial water kefir production process consisting of a first fermentation process, a rest period at low temperature, and a second fermentation process was characterized to elucidate the causes of its low water kefir grain growth and instability. The frozen-stored water kefir grain inoculum was thawed and reactivated during three consecutive prefermentations before the water kefir production process was started. Freezing and thawing damaged the water kefir grains irreversibly, as their structure did not restore during the prefermentations nor the production process...
January 9, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28068788/a-double-blind-randomized-placebo-controlled-trial-of-lactobacillus-helveticus-and-bifidobacterium-longum-for-the-symptoms-of-depression
#8
Amy R Romijn, Julia J Rucklidge, Roeline G Kuijer, Chris Frampton
OBJECTIVES: This trial investigated whether probiotics improved mood, stress and anxiety in a sample selected for low mood. We also tested whether the presence or severity of irritable bowel syndrome symptoms, and levels of proinflammatory cytokines, brain-derived neurotrophic factor and other blood markers, would predict or impact treatment response. METHOD: Seventy-nine participants (10 dropouts) not currently taking psychotropic medications with at least moderate scores on self-report mood measures were randomly allocated to receive either a probiotic preparation (containing Lactobacillus helveticus and Bifidobacterium longum) or a matched placebo, in a double-blind trial for 8 weeks...
January 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/28061804/the-extracellular-proteome-of-two-bifidobacterium-species-reveals-different-adaptation-strategies-to-low-iron-conditions
#9
Pamela Vazquez-Gutierrez, Marc J A Stevens, Peter Gehrig, Simon Barkow-Oesterreicher, Christophe Lacroix, Christophe Chassard
BACKGROUND: Bifidobacteria are among the first anaerobic bacteria colonizing the gut. Bifidobacteria require iron for growth and their iron-sequestration mechanisms are important for their fitness and possibly inhibit enteropathogens. Here we used combined genomic and proteomic analyses to characterize adaptations to low iron conditions of B. kashiwanohense PV20-2 and B. pseudolongum PV8-2, 2 strains isolated from the feces of iron-deficient African infants and selected for their high iron-sequestering ability...
January 6, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28056921/bifidobacterium-adolescentis-protects-against-necrotizing-enterocolitis-and-upregulates-tollip-and-sigirr-in-premature-neonatal-rats
#10
Wenshen Wu, Yanli Wang, Jingjing Zou, Fang Long, Huiheng Yan, Lijuan Zeng, Yunbin Chen
BACKGROUND: Necrotizing enterocolitis (NEC) is a serious gastrointestinal disorder that is often seen in premature infants. Probiotics decrease the risk of NEC; however, the mechanism by which probiotics work is not clear. The goal of this study was to evaluate the preventive effect of Bifidobacterium adolescentis in an NEC rat model. METHODS: Sprague-Dawley neonatal rats were obtained by caesarean section after 20-21 d gestation and randomly divided into the following 3 groups: dam fed (DF), formula fed (FF), and formula + B...
January 5, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28049818/impact-of-short-chain-galactooligosaccharides-on-the-gut-microbiome-of-lactose-intolerant-individuals
#11
M Andrea Azcarate-Peril, Andrew J Ritter, Dennis Savaiano, Andrea Monteagudo-Mera, Carlton Anderson, Scott T Magness, Todd R Klaenhammer
Directed modulation of the colonic bacteria to metabolize lactose effectively is a potentially useful approach to improve lactose digestion and tolerance. A randomized, double-blind, multisite placebo-controlled trial conducted in human subjects demonstrated that administration of a highly purified (>95%) short-chain galactooligosaccharide (GOS), designated "RP-G28," significantly improved clinical outcomes for lactose digestion and tolerance. In these individuals, stool samples were collected pretreatment (day 0), after GOS treatment (day 36), and 30 d after GOS feeding stopped and consumption of dairy products was encouraged (day 66)...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28049206/novel-mechanisms-underlying-the-therapeutic-effect-of-glycomacropeptide-on-allergy-change-in-gut-microbiota-upregulation-of-tgf-%C3%AE-and-inhibition-of-mast-cells
#12
Mariela Jiménez, Daniel Cervantes-García, Yualli Haydee Muñoz, Alejandra García, Luis Miguel Haro, Eva Salinas
BACKGROUND: The prevalence of allergic diseases is globally increasing. We have previously described that glycomacropeptide (GMP), a bioactive milk peptide, has therapeutic value in experimental models of skin hypersensitivity, anaphylaxis, and asthma, as it prevents an excessive T helper type 2 cell immune response. The aim of this study was to analyze the effect of GMP on key elements directly involved in the development or control of allergy, in order to improve the precise knowledge about its mechanism of action...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28042704/development-of-an-in-vitro-immunobiotic-evaluation-system-against-rotavirus-infection-in-bovine-intestinal-epitheliocytes
#13
H Kobayashi, P Kanmani, T Ishizuka, A Miyazaki, J Soma, L Albarracin, Y Suda, T Nochi, H Aso, N Iwabuchi, J-Z Xiao, T Saito, J Villena, H Kitazawa
The bovine intestinal epithelial cell line (BIE cells) expresses the Toll-like receptor (TLR)3 and is able to mount an antiviral immune response after the stimulation with poly(I:C). In the present study, we aimed to further characterise the antiviral defence mechanisms in BIE cells by evaluating the innate immune response triggered by rotavirus (RV) infection. In addition, we attempted to determine whether immunobiotic bifidobacteria are able to confer protection of BIE cells against RV infection by beneficially modulating the antiviral immune response...
January 2, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28039392/molecular-characterization-of-tomato-%C3%AE-1-3-4-fucosidase-a-member-of-glycosyl-hydrolase-family-29-involved-in-the-degradation-of-plant-complex-type-n-glycans
#14
Md Ziaur Rahman, Megumi Maeda, Satsuki Itano, Anowar Hossain, Takeshi Ishimizu, Yoshinobu Kimura
In this study, we identified a gene in tomato that encodes an acidic α-fucosidase (LOC101254568 or Solyc03g006980, α-Fuc'ase S1-1), which may be involved in the turnover of plant complex-type N-glycans. Recombinant α-Fuc'ase S1-1 (rFuc'ase S1-1) was expressed using a baculovirus-insect cell expression system. rFuc'ase Sl-1 is 55 kDa in size and has an optimum pH around 4.5. It substantially hydrolyzed the non-reducing terminal α1,3-fucose residue on LNFP III and α1,4-fucose residues of Le(a) epitopes on plant complex-type N-glycans, but not the α1,2-fucose residue on LNFP I or the α1,3-fucose residue on pyridylaminated Fucα1-3GlcNAc...
December 30, 2016: Journal of Biochemistry
https://www.readbyqxmd.com/read/28038333/ultrasound-attenuation-of-lactobacilli-and-bifidobacteria-effect-on-some-technological-and-probiotic-properties
#15
Angela Racioppo, Maria Rosaria Corbo, Claudia Piccoli, Milena Sinigaglia, Barbara Speranza, Antonio Bevilacqua
Attenuation can be regarded as a tool to modulate the metabolism of probiotic bacteria and, consequently, a strategy to reduce the acidification of the active drinks. Attenuation can be done through chemical and physical approaches and ultrasound (US) is a possibility, previously tested to modulate the metabolism of lactic acid bacteria inoculated in a rice drink, but no data are available on the effect of this treatment of the overall profile of probiotic bacteria. Therefore, the main topic of this paper was to study the effect of US-attenuation on some properties of Lactobacillus reuteri, Lactobacillus plantarum, Bifidobacterium longum, and Bifidobacterium infantis (survival at pH2, and 2...
December 21, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28034292/the-effect-of-pullulan-on-the-growth-and-acidifying-activity-of-selected-stool-microflora-of-human
#16
Anna Chlebowska-Śmigiel, Małgorzata Gniewosz, Marek Kieliszek, Anna Bzducha-Wróbel
BACKGROUND: Pullulan is a microbial polysaccharide of low energy value, which can component of low-calorie foods and in dietary snacks for diabetics. The objective of the study was to determine the effect of pullulan on the growth and fermentation activity of selected human intestinal bacteria. METHODS: Commercial pullulan purchased from Focubase (China) of a molecular weight of 100,000 Da constituted as experimental material. Food grade pullulan 99% purity. Two control media were prepared: the first standard RCM composed of (g/100 ml): 0...
December 29, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28029082/probiotics-in-curing-allergic-and-inflammatory-conditions-research-progress-and-futuristic-vision
#17
Kuldeep Dhama, Shyma K Latheef, Ashok Kumar Munjal, Rekha Khandia, Hari Abdul Samad, Hafiz M N Iqbal, Sunil K Joshi
BACKGROUND: Probiotics constitute the viable and beneficial microbes, which offer a dietary means to sustain the balance of gastro-intestinal (GI) microflora. Owing to their multiple health benefits, these have recently gained wide attention among researchers for exploring their potential in safeguarding the health of humans and animals. Probiotics could also modulate host-immune responses, thereby help in counteracting the immunological dysfunctions. Probiotics can inhibit the systemic invasion of pathogens entering through the GI mucosa/ oral cavity and have been found to possess effective prophylactic and therapeutic utilities against various infectious pathogens as well as non-infectious diseases and disorders...
December 26, 2016: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/28027638/effects-of-bifidobacterium-animalis-lactis-hn019-dr10tm-inulin-and-micronutrient-fortified-milk-on-faecal-dr10tm-immune-markers-and-maternal-micronutrients-among-indonesian-pregnant-women
#18
Noroyono Wibowo, Saptawati Bardosono, Rima Irwinda
BACKGROUND AND OBJECTIVES: Maternal nutrition affects fetal growth and development. This study evaluates the effects of milk powder fortified with micronutrients, docosahexaenoic acid (DHA), a prebiotic, and probiotic Bifidobacterium animalis subsp. lactis HN019 DR10TM on the micronutrient status, as well as the presence of faecal probiotic and immune markers in pregnant women. METHODS AND STUDY DESIGN: This randomised, double- blind, placebo-controlled trial was conducted at Budi Kemuliaan and Cipto Mangunkusumo Hospital in Jakarta from 2013 to 2014...
December 2016: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28025886/comparative-analysis-of-the-rats-gut-microbiota-composition-in-animals-with-different-ginsenosides-metabolizing-activity
#19
Wei-Wei Dong, Fang-Ling Xuan, Fei-Liang Zhong, Jun Jiang, Songquan Wu, Donghao Li, Lin-Hu Quan
Following oral intake of Panax ginseng, major ginsenosides are metabolized to deglycosylated ginsenosides by gut microbiota before absorption into the blood. As the composition of gut microbiota varies between individuals, metabolic activities are significantly different. We selected 6 rats with low efficiency metabolism (LEM) and 6 rats with high efficiency metabolism (HEM) from 60 rats following oral administration of Panax ginseng extract, and analyzed their gut microbiota composition using Illumina HiSeq sequencing of the 16S rRNA gene...
January 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28018325/sensitive-quantitative-analysis-of-the-meconium-bacterial-microbiota-in-healthy-term-infants-born-vaginally-or-by-cesarean-section
#20
Ravinder Nagpal, Hirokazu Tsuji, Takuya Takahashi, Kazunari Kawashima, Satoru Nagata, Koji Nomoto, Yuichiro Yamashiro
For decades, babies were thought to be born germ-free, but recent evidences suggest that they are already exposed to various bacteria in utero. However, the data on population levels of such pioneer gut bacteria, particularly in context to birth mode, is sparse. We herein aimed to quantify such bacteria from the meconium of 151 healthy term Japanese infants born vaginally or by C-section. Neonatal first meconium was obtained within 24-48 h of delivery; RNA was extracted and subjected to reverse-transcription-quantitative PCR using specific primers for Clostridium coccoides group, C...
2016: Frontiers in Microbiology
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