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https://www.readbyqxmd.com/read/29212851/omics-of-bifidobacteria-research-and-insights-into-their-health-promoting-activities
#1
REVIEW
Francesca Bottacini, Douwe van Sinderen, Marco Ventura
Members of the genus Bifidobacterium include gut commensals that are particularly abundant among the microbial communities residing in the gut of healthy breast-fed infants, where their presence has been linked to many beneficial host effects. Next-generation DNA sequencing and comparative and functional genome methodologies have been shown to be particularly useful in exploring the diversity of this genus. These combined approaches have allowed the identification of genetic features related to bifidobacterial establishment in the gut, involving host-microbe as well as microbe-microbe interactions...
December 6, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/29212822/effect-of-probiotics-on-pharmacokinetics-of-orally-administered-acetaminophen-in-mice
#2
Jeon-Kyung Kim, Min Sun Choi, Jin-Ju Jeong, Su-Min Lim, In Sook Kim, Hye Hyun Yoo, Dong-Hyun Kim
Orally administered probiotics change gut microbiota composition and enzyme activities. Thus, coadministration of probiotics with drugs may lead to changes in the pharmacokinetic parameters of the drugs. In this study, we investigated the pharmacokinetics of acetaminophen in rats treated with probiotics. Oral administration of probiotics changed the gut microbiota composition in the mice. Of these probiotics, Lactobacillus reuteri K8 increased the numbers of clostridia, bifidobacteria, and enterococci, and Lactobacillus rhamnosus K9 decreased the number of bifidobacteria, determined by culturing in selective media...
December 6, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29211897/effect-of-yeast-cell-wall-on-the-growth-performance-and-gut-health-of-broilers-challenged-with-aflatoxin-b1-and-necrotic-enteritis
#3
N Liu, J Q Wang, S C Jia, Y K Chen, J P Wang
This study aimed to investigate the effect of yeast cell walls (YCW) on the growth performance, visceral lesions, intestinal integrity, enterotoxicity, and bacteria of broilers challenged with aflatoxin B1 (AF) and necrotic enteritis (NE) from 1 to 21 d of age. A total of 576 one-day-old broilers were assigned to a 2 × 2 × 2 design for diets containing AFB1 (0 or 40 μg/kg), NE (challenged or unchallenged), or YCW (0 or 500 mg/kg). The main effect analysis showed that AF depressed (P < 0.01) average daily feed intake (ADFI), average daily body weight gain (ADG), the mRNA profiles of polymeric Ig receptor (pIgR), claudin-1, and occludin, but increased (P < 0...
December 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/29210899/distinct-microbial-populations-exist-in-the-mucosa-associated-microbiota-of-diarrhea-predominant-irritable-bowel-syndrome-and-ulcerative-colitis
#4
Wenting Zhong, Xiaolan Lu, Haitao Shi, Gang Zhao, Yahua Song, Yonghua Wang, Jing Zhang, Yaofeng Jin, Shenhao Wang
GOALS: The goal of this study was to observe the bacterial colonization in the intestinal mucosa in the patients with diarrhea predominant irritable bowel syndrome (IBS-D) and ulcerative colitis (UC), and compare the mucosa-associated microbiota among the IBS-D patients, UC patients and the healthy control, and explore the correlation of the mucosa-associated microbiota with clinical manifestations. STUDY: A total of 20 IBS-D patients, 28 patients with UC (16 active, 12 inactive) and 16 healthy subjects were enrolled in the study...
November 28, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29209439/comparative-study-of-probiotic-effects-of-lactobacillus-and-bifidobacteria-strains-on-cholesterol-levels-liver-morphology-and-the-gut-microbiota-in-obese-mice
#5
Rostyslav V Bubnov, Lidiia P Babenko, Liudmyla M Lazarenko, Viktoria V Mokrozub, Oleksandr A Demchenko, Oleksiy V Nechypurenko, Mykola Ya Spivak
Background: Microbiome-modulating interventions are promising for treatment and prevention of metabolic syndrome. The number of probiotic strains demonstrated ability to decrease cholesterol level in vivo, however, it was poorly confirmed in a clinical setting. The aim was to study the effects of L. acidophilus IMV B-7279, L. casei IMV B-7280, B. animalіs VKL and B. animalіs VKB separately and in various compositions on the level of serum cholesterol, gut microbiota contents and liver morphology on a high-calorie-induced obesity model in BALB/c mice...
December 2017: EPMA Journal
https://www.readbyqxmd.com/read/29207065/estrogen-inhibits-the-overgrowth-of-escherichia%C3%A2-coli-in-the-rat-intestine-under-simulated-microgravity
#6
Yongtao Yang, Changmin Qu, Shuwen Liang, Gang Wang, Haolun Han, Na Chen, Xiaoying Wang, Zhiwen Luo, Changqing Zhong, Yan Chen, Lianyong Li, Wei Wu
Microgravity can affect many aspects of intestinal homeostasis, leading to an increased risk of colitis. Estrogen, the most frequently affected hormone when under simulated microgravity, regulates the permeability of the colonic mucosa barrier. The associations between alterations in intestinal microbiota and increased susceptibility under microgravity have not been thoroughly elucidated. The aim of the present study was to evaluate the changes in intestinal microbiota under simulated microgravity and to investigate the protective effect of estrogen against those changes...
November 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29202875/postoperative-changes-of-the-microbiome-are-surgical-complications-related-to-the-gut-flora-a-systematic-review
#7
Ann-Kathrin Lederer, Przemyslaw Pisarski, Lampros Kousoulas, Stefan Fichtner-Feigl, Carolin Hess, Roman Huber
BACKGROUND: The purpose of this review was to identify the relationship between the gut microbiome and the development of postoperative complications like anastomotic leakage or a wound infection. Recent reviews focusing on underlying molecular biology suggested that postoperative complications might be influenced by the patients' gut flora. Therefore, a review focusing on the available clinical data is needed. METHODS: In January 2017 a systematic search was carried out in Medline and WebOfScience to identify all clinical studies, which investigated postoperative complications after gastrointestinal surgery in relation to the microbiome of the gut...
December 4, 2017: BMC Surgery
https://www.readbyqxmd.com/read/29192561/genetic-engineering-as-a-powerful-tool-to-improve-probiotic-strains
#8
Daniel Bravo, José M Landete
Over the last decade, there has been increasing interest in the use of probiotic microorganisms. However, certain doubts have arisen around probiotics, because of the beneficial effects of these microorganisms are not clear yet, and in many occasions those beneficial effects have not been proven. Therefore, it would be of interest if these probiotic strains were able to acquire new attributes to allow them improve and increase their beneficial characteristics. Genetic engineering can be used for human applications; for instance, the resistance to antibiotics is removed and the probiotic bacteria are modified in its own DNA...
December 1, 2017: Biotechnology & Genetic Engineering Reviews
https://www.readbyqxmd.com/read/29184537/probiotics-ingestion-does-not-directly-affect-thyroid-hormonal-parameters-in-hypothyroid-patients-on-levothyroxine-treatment
#9
Giorgia Spaggiari, Giulia Brigante, Sara De Vincentis, Umberto Cattini, Laura Roli, Maria Cristina De Santis, Enrica Baraldi, Simonetta Tagliavini, Manuela Varani, Tommaso Trenti, Vincenzo Rochira, Manuela Simoni, Daniele Santi
Purpose: The relationship between probiotics and levothyroxine (LT4) requirement has not yet been investigated. The aim of this study was to assess whether a mixture of highly charged Lactobacilli and Bifidobacteria (VSL#3®) is able to influence LT4 metabolism acting on the gut microbiota. Methods: A prospective, randomized, single-blind, controlled, investigator-started clinical trial was carried out. Patients with primary hypothyroidism were randomly assigned to the study (VSL#3® + LT4) and the control group (LT4)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29167659/balancing-herbal-medicine-and-functional-food-for-prevention-and-treatment-of-cardiometabolic-diseases-through-modulating-gut-microbiota
#10
REVIEW
Ming Lyu, Yue-Fei Wang, Guan-Wei Fan, Xiao-Ying Wang, Shuang-Yong Xu, Yan Zhu
It has become apparent that gut microbiota is closely associated with cardiometabolic diseases (CMDs), and alteration in microbiome compositions is also linked to the host environment. Next generation sequencing (NGS) has facilitated in-depth studies on the effects of herbal medicine and functional food on gut microbiota. Both herbal medicine and functional food contain fiber, polyphenols and polysaccharides, exerting prebiotics-like activities in the prevention and treatment of CMDs. The administrations of herbal medicine and functional food lead to increased the abundance of phylum Bacteroidetes, and genus Akkermansia, Bifidobacteria, Lactobacillus, Bacteroides and Prevotella, while reducing phylum Firmicutes and Firmicutes/Bacteroidetes ratio in gut...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29164569/correlation-between-intestinal-flora-and-serum-inflammatory-factors-in-patients-with-crohn-s-disease
#11
J Zhang, S-L Chen, L-B Li
OBJECTIVE: We investigated the correlation between intestinal flora and serum inflammatory factors in patients with Crohn's disease. PATIENTS AND METHODS: From February 2014 to June 2016, 132 patients with Crohn's were enrolled in this study. There were 84 males and 48 females. The age range was from 28 to 72 years. We had 62 patients in active stage (the activity group) and 70 patients in remission stage (the remission group). We also enrolled 71 healthy cases in the control group...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29163538/efficacy-and-safety-of-a-multistrain-probiotic-formulation-depends-from-manufacturing
#12
Vito Trinchieri, Luca Laghi, Beatrice Vitali, Carola Parolin, Ilaria Giusti, Daniela Capobianco, Paola Mastromarino, Claudio De Simone
Background: Variability in probiotics manufacturing may affect their properties, with potential implications for their efficacy and safety. This is of particular concern with probiotic products destined for use in patients with serious medical conditions, including human immunodeficiency virus (HIV) infection. The purpose of the study was to carry out a series of experiments comparing the properties of the US-made probiotic formulation originally commercialized under the brand name VSL#3®, with those of the Italian-made formulation now commercialized under the same name...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29160815/assessment-of-bifidobacterium-species-using-groel-gene-on-the-basis-of-illumina-miseq-high-throughput-sequencing
#13
Lujun Hu, Wenwei Lu, Linlin Wang, Mingluo Pan, Hao Zhang, Jianxin Zhao, Wei Chen
The next-generation high-throughput sequencing techniques have introduced a new way to assess the gut's microbial diversity on the basis of 16S rRNA gene-based microbiota analysis. However, the precise appraisal of the biodiversity of Bifidobacterium species within the gut remains a challenging task because of the limited resolving power of the 16S rRNA gene in different species. The groEL gene, a protein-coding gene, evolves quickly and thus is useful for differentiating bifidobacteria. Here, we designed a Bifidobacterium-specific primer pair which targets a hypervariable sequence region within the groEL gene that is suitable for precise taxonomic identification and detection of all recognized species of the genus Bifidobacterium so far...
November 21, 2017: Genes
https://www.readbyqxmd.com/read/29155807/a-synbiotic-containing-amino-acid-based-formula-improves-gut-microbiota-in-non-ige-mediated-allergic-infants
#14
David C A Candy, Marleen T J Van Ampting, Manon M Oude Nijhuis, Harm Wopereis, Assad M Butt, Diego G Peroni, Yvan Vandenplas, Adam T Fox, Neil Shah, Christina E West, Johan Garssen, Lucien F Harthoorn, Jan Knol, Louise J Michaelis
BACKGROUND: Prebiotics and probiotics (synbiotics) can modify gut microbiota and have potential in allergy management when combined with amino acid-based formula (AAF) for infants with cow's milk allergy (CMA). METHODS: This multicenter, double-blind, randomized controlled trial investigated the effects of an AAF including synbiotic blend on percentages of bifidobacteria and Eubacterium rectale/Clostridium coccoides group (ER/CC) in feces from infants with suspected non-IgE-mediated CMA...
November 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29148175/treatment-efficacy-of-a-probiotic-preparation-for-non-alcoholic-steatohepatitis-a-pilot-trial
#15
Elina Manzhalii, Oleksandr Virchenko, Tetyana Falalyeyeva, Tetyana Beregova, Wolfgang Stremmel
AIM: To evaluate the therapeutic effect of a probiotic cocktail containing lactobacilli, bifidobacteria, and Streptococcus thermophilus on non-alcoholic steatohepatitis (NASH). METHODS: In this open-label trial, 75 patients with NASH fed a low-fat/low-calorie diet were randomly divided into the control group (n = 37) and the experimental group (n = 38) also receiving the probiotic cocktail once daily for 12 weeks. RESULTS: All patients were diagnosed with fatty liver by ultrasound examination and had elevated levels of gamma-glutamyl transferase (GGT) and alanine aminotransferase (ALT), and slightly increased body mass index (BMI) and cholesterol levels...
November 17, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/29130669/-a-preliminary-analysis-of-bifidobacterial-species-dependent-influence-on-the-health-of-the-elderly
#16
Shu-Yue Wang, Xiao-Hong Yu, Ming Li, Shan-Shan Li, Jun-Jie Miao, Qian Yu, Fang He
OBJECTIVE: To analyze the species dependent effect of bifidobacteria to the heath of the middle and elderly. METHODS: Total 148 healthy volunteers living in Chengdu with 5074 years old were recruited in 2015. The blood samples were collected from them and analyzed physiologically and immunologically. The fecal bifidobacterial were also analyzed by realtime fluorescence quantitative PCR (qPCR) using 16S rRNA targeting designed gene and species specific primers. RESULTS: Bifidobacterium can be detected in feces of the elderly,the detection rate was 100%,10⁸/g fecal...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29129233/low-fermentable-oligo-di-mono-saccharides-and-polyol-diet-in-the-treatment-of-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis
#17
Dania Schumann, Petra Klose, Romy Lauche, Gustav Dobos, Jost Langhorst, Holger Cramer
OBJECTIVES: The aim of this review was to systematically assess and meta-analyze the effects of a low fermentable, oligo-, di-, mono-saccharides and polyol (FODMAP) diet (LFD) on the severity of symptoms, quality of life, and safety in patients with irritable bowel syndrome (IBS). METHODS: The MEDLINE/PubMed, Scopus, and Cochrane Library databases were screened through January 19, 2016. Randomized controlled trials (RCTs) that compared LFD to other diets were included if they assessed symptoms of IBS or abdominal pain in patients with IBS...
January 2018: Nutrition
https://www.readbyqxmd.com/read/29124388/measuring-the-impact-of-olive-pomace-enriched-biscuits-on-the-gut-microbiota-and-its-metabolic-activity-in-mildly-hypercholesterolaemic-subjects
#18
Lorenza Conterno, Francesca Martinelli, Matteo Tamburini, Francesca Fava, Andrea Mancini, Maddalena Sordo, Massimo Pindo, Stefan Martens, Domenico Masuero, Urska Vrhovsek, Claudia Dal Lago, Gabriele Ferrario, Mario Morandini, Kieran Tuohy
PURPOSE: Olive pomace is a major waste product of olive oil production but remains rich in polyphenols and fibres. We measured the potential of an olive pomace-enriched biscuit formulation delivering 17.1 ± 4.01 mg/100 g of hydroxytyrosol and its derivatives, to modulate the composition and metabolic activity of the human gut microbiota. METHODS: In a double-blind, controlled parallel dietary intervention 62 otherwise healthy hypercholesterolemic (total plasma cholesterol 180-240 mg/dl) subjects were randomly assigned to eat 90 g of olive pomace-enriched biscuit (olive-enriched product, OEP) or an isoenergetic control (CTRL) for 8 weeks...
November 9, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29118049/the-first-microbial-colonizers-of-the-human-gut-composition-activities-and-health-implications-of-the-infant-gut-microbiota
#19
REVIEW
Christian Milani, Sabrina Duranti, Francesca Bottacini, Eoghan Casey, Francesca Turroni, Jennifer Mahony, Clara Belzer, Susana Delgado Palacio, Silvia Arboleya Montes, Leonardo Mancabelli, Gabriele Andrea Lugli, Juan Miguel Rodriguez, Lars Bode, Willem de Vos, Miguel Gueimonde, Abelardo Margolles, Douwe van Sinderen, Marco Ventura
The human gut microbiota is engaged in multiple interactions affecting host health during the host's entire life span. Microbes colonize the neonatal gut immediately following birth. The establishment and interactive development of this early gut microbiota are believed to be (at least partially) driven and modulated by specific compounds present in human milk. It has been shown that certain genomes of infant gut commensals, in particular those of bifidobacterial species, are genetically adapted to utilize specific glycans of this human secretory fluid, thus representing a very intriguing example of host-microbe coevolution, where both partners are believed to benefit...
December 2017: Microbiology and Molecular Biology Reviews: MMBR
https://www.readbyqxmd.com/read/29109959/probiotic-bacteria-for-healthier-aging-immunomodulation-and-metabolism-of-phytoestrogens
#20
REVIEW
José María Landete, Pilar Gaya, Eva Rodríguez, Susana Langa, Ángela Peirotén, Margarita Medina, Juan L Arqués
Age-related degeneration gives rise to a number of pathologies, many of them associated with imbalances of the microbiota and the gut-associated immune system. Thus, the intestine is considered a key target organ to improve the quality of life in senescence. Gut microbiota can have a powerful impact in the deterioration linked to aging by its nutritional and immunomodulatory activity. Reduced numbers of beneficial species and low microbial biodiversity in the elderly have been linked with pathogenesis of many diseases...
2017: BioMed Research International
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