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https://www.readbyqxmd.com/read/28346936/differential-establishment-of-bifidobacteria-in-the-breastfed-infant-gut
#1
Zachery T Lewis, David A Mills
The composition of an infant's gut microbiome can impact their immediate and long-term health. Bifdobacteria play a major role in structuring the gut microbiome of breastfed infants due to their ability to consume oligosaccharides found in human milk. However, recent studies have revealed that bifidobacteria are often absent in the gut microbiome of breastfed infants in some locations. This lack of colonization may be due either to differences in the environmental conditions in the gastrointestinal tract of uncolonized infants which prohibit the growth of bifidobacteria or a dearth of sources from which infants may acquire these specialized bacterial species...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346926/microbiota-and-obesity
#2
Erika Isolauri
Obesity is globally the most prevalent nutritional disorder. Multifaceted therapeutic approaches are called for to halt the cascade from neonatal adiposity/high birth weight to childhood excessive weight gain/adult obesity with comorbidities. Recent experimental and clinical data provide one new target for interventions aiming to close this vicious circle: the microbiota. An aberrant gut microbiota, dysbiosis, induces immune and metabolic disturbances both locally and, consequent upon impaired gut barrier function, also systemic low-grade inflammation, which is causally linked to insulin resistance...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28339522/influence-of-postbiotic-rg14-and-inulin-combination-on-cecal-microbiota-organic-acid-concentration-and-cytokine-expression-in-broiler-chickens
#3
K Y Kareem, T C Loh, H L Foo, S A Asmara, H Akit
This study examined the effects of different combinations of inulin and postbiotics RG14 on growth performance, cecal microbiota, volatile fatty acids (VFA), and ileal cytokine expression in broiler chickens. Two-hundred-and sixteen, one-day-old chicks were allocated into 6 treatment groups, namely, a basal diet (negative control, NC), basal diet + neomycin and oxytetracycline (positive control, PC), T1 = basal diet + 0.15% postbiotic RG14 + 1.0% inulin, T2 = basal diet + 0.3% postbiotic RG14 + 1.0% inulin, T3 = basal diet + 0...
October 6, 2016: Poultry Science
https://www.readbyqxmd.com/read/28316118/late-preterm-birth-has-direct-and-indirect-effects-on-infant-gut-microbiota-development-during-the-first-six-months-of-life
#4
M Forsgren, E Isolauri, S Salminen, S Rautava
AIM: Preterm infants display aberrant gut microbial colonisation. We investigated whether the differences in gut microbiota between late preterm and full-term infants results from prematurity or external exposures. METHODS: This study comprised 43 late preterm infants (34(0/7) - 36(6/7) ) and 75 full-term infants based on faecal samples collected following birth and at two to four weeks and six months of age. We assessed clinically relevant bacteria using quantitative polymerase chain reaction...
March 17, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28293225/bacterial-composition-genotoxicity-and-cytotoxicity-of-fecal-samples-from-individuals-consuming-omnivorous-or-vegetarian-diets
#5
Ermanno Federici, Roberta Prete, Camilla Lazzi, Nicoletta Pellegrini, Massimo Moretti, Aldo Corsetti, Giovanni Cenci
This study analyzes the composition of viable fecal bacteria and gut toxicology biomarkers of 29 healthy volunteers, who followed omnivorous, lacto-ovo-vegetarian, or vegan diets. In particular, the research was focused on the prevalence of some representative viable bacteria from the four dominant phyla (Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria) commonly present in human feces, in order to evaluate the relationship between microorganisms selected by the habitual dietary patterns and the potential risk due to fecal water (FW) genotoxicity and cytotoxicity, considered as biomarkers for cancer risk and protective food activity...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28292554/selected-lactobacilli-and-bifidobacteria-development-in-solid-state-fermentation-using-soybean-paste
#6
Antonieta Rodríguez de Olmos, Maria Alejandra Correa Deza, Marisa S Garro
At present, consumers are looking for more natural foods so as to improve health through their active compounds. Within this context, soybean is an excellent substrate due to its beneficial effects on consumers' health. Moreover, lactic cultures are widely used in the food industry to improve the technological, nutritional and functional characteristics of fermented foods. It is interesting to find new matrices in which to transport these starter cultures (potentially probiotic microorganisms). The aim of this research was to obtain a solid state fermentation system from soybean to analyze the behavior of selected lactobacilli and bifidobacteria, with the potential to develop a functional vegetarian food to serve as carrier for the microorganisms...
March 12, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28286292/metabolic-engineering-of-escherichia-coli-for-the-production-of-2-fucosyllactose-and-3-fucosyllactose-through-modular-pathway-enhancement
#7
Di Huang, Kexin Yang, Jia Liu, Yingying Xu, Yuanyuan Wang, Ru Wang, Bin Liu, Lu Feng
Fucosyllactoses, including 2'-fucosyllactose (2'-FL) and 3-fucosyllactose (3-FL), are important oligosaccharides in human milk that are commonly used as nutritional additives in infant formula due to their biological functions, such as the promotion of bifidobacteria growth, inhibition of pathogen infection, and improvement of immune response. In this study, we developed a synthetic biology approach to promote the efficient biosynthesis of 2'-FL and 3-FL in engineered Escherichia coli. To boost the production of 2'-FL and 3-FL, multiple modular optimization strategies were applied in a plug-and-play manner...
March 9, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28273274/effects-of-probiotic-intake-on-intestinal-bifidobacteria-of-celiac-patients
#8
Flávia Martinello, Camila Fontana Roman, Paula Alves de Souza
BACKGROUND: Healthy individuals exhibit a significantly higher concentration of faecal bifidobacteria in comparison to celiac patients. Even though there are potential benefits in probiotic usage, they have been little explored as an adjunctive therapy in celiac disease. OBJECTIVE: This study aimed at the comparison of faecal bifidobacteria concentration and pH among celiac patients and healthy subjects before and after the daily intake of 100 g of yogurt containing probiotic for a thirty-day period...
February 23, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28270216/bifidobacterium-mixture-b-longum-bb536-b-infantis-m-63-b-breve-m-16v-treatment-in-children-with-seasonal-allergic-rhinitis-and-intermittent-asthma
#9
Michele Miraglia Del Giudice, Cristiana Indolfi, Michele Capasso, Nunzia Maiello, Fabio Decimo, Giorgio Ciprandi
BACKGROUND: Allergic rhinitis (AR) and allergic asthma are caused by an IgE-mediated inflammatory reaction. Probiotics may exert anti-inflammatory and immune-modulatory activity. Thus, this study aimed at investigating whether a Bifidobacteria mixture could be able to relieve nasal symptoms, and affect quality of life (QoL) in children with AR and intermittent asthma due to Parietaria allergy. MATERIALS AND METHODS: The present study was conducted as placebo-controlled, double-blinded, and randomized...
March 7, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28270173/efficacy-of-a-mixture-of-probiotic-agents-as-complementary-therapy-for-chronic-functional-constipation-in-childhood
#10
Marina Russo, Francesca Paola Giugliano, Paolo Quitadamo, Valeria Mancusi, Erasmo Miele, Annamaria Staiano
BACKGROUND: About 30% of constipated children continue to struggle with constipation beyond puberty. Growing interest has recently raised on the use of probiotics as complementary therapy for FC, in order to prevent the possible PEG-related intestinal dysbiosis. Our study aimed at evaluating the effect on childhood FC of a probiotic mixture (PM), including Bifidobacteria breve M-16 V®, infantis M-63®, and longum BB536®. METHODS: Fifty-five consecutive children suffering from FC were randomly assigned into two groups: group A received a daily oral combination of PEG plus PM and group B received oral PEG only...
March 7, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28261168/common-distribution-of-gad-operon-in-lactobacillus-brevis-and-its-gada-contributes-to-efficient-gaba-synthesis-toward-cytosolic-near-neutral-ph
#11
Qinglong Wu, Hein Min Tun, Yee-Song Law, Ehsan Khafipour, Nagendra P Shah
Many strains of lactic acid bacteria (LAB) and bifidobacteria have exhibited strain-specific capacity to produce γ-aminobutyric acid (GABA) via their glutamic acid decarboxylase (GAD) system, which is one of amino acid-dependent acid resistance (AR) systems in bacteria. However, the linkage between bacterial AR and GABA production capacity has not been well established. Meanwhile, limited evidence has been provided to the global diversity of GABA-producing LAB and bifidobacteria, and their mechanisms of efficient GABA synthesis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28253911/childhood-bmi-in-relation-to-microbiota-in-infancy-and-lifetime-antibiotic-use
#12
K Korpela, M A C Zijlmans, M Kuitunen, K Kukkonen, E Savilahti, A Salonen, C de Weerth, W M de Vos
BACKGROUND: Children with high body mass index (BMI) at preschool age are at risk of developing obesity. Early identification of factors that increase the risk of excessive weight gain could help direct preventive actions. The intestinal microbiota and antibiotic use have been identified as potential modulators of early metabolic programming and weight development. To test if the early microbiota composition is associated with later BMI, and if antibiotic use modifies this association, we analysed the faecal microbiota composition at 3 months and the BMI at 5-6 years in two cohorts of healthy children born vaginally at term in the Netherlands (N = 87) and Finland (N = 75)...
March 3, 2017: Microbiome
https://www.readbyqxmd.com/read/28245628/maternal-prebiotic-ingestion-increased-the-number-of-fecal-bifidobacteria-in-pregnant-women-but-not-in-their-neonates-aged-one-month
#13
Shinji Jinno, Takayuki Toshimitsu, Yoshitaka Nakamura, Takayuki Kubota, Yuka Igoshi, Naoko Ozawa, Shuichi Suzuki, Taiji Nakano, Yoshinori Morita, Takayasu Arima, Fumiya Yamaide, Yoichi Kohno, Kentaro Masuda, Naoki Shimojo
Fructooligosaccharides (FOS) can selectively stimulate the growth of bifidobacteria. Here, we investigated the effect of maternal FOS ingestion on maternal and neonatal gut bifidobacteria. In a randomized, double-blind, placebo-controlled study, we administered 8 g/day of FOS or sucrose to 84 women from the 26th week of gestation to one month after delivery. The bifidobacteria count was detected using quantitative PCR in maternal (26 and 36 weeks of gestation) and neonatal (one month after delivery) stools...
February 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28244671/prebiotic-inulin-type-fructans-and-galacto-oligosaccharides-definition-specificity-function-and-application-in-gastrointestinal-disorders
#14
REVIEW
Bridgette Wilson, Kevin Whelan
Prebiotics are non-digestible selectively fermented dietary fibers that specifically promote the growth of one or more bacterial genera in the gastrointestinal tract and thus provide health benefit to the host. The two most investigated prebiotics being the inulin-type fructans and galacto-oligosaccharides. Prebiotic specificity is mediated through species-specific gene clusters within saccharolytic bacteria controlled by signaling sensors for various substrates. Prebiotic health benefits are attributed to immune regulation and bacterial metabolite production...
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28244658/nutritional-microbiological-and-psychosocial-implications-of-the-low-fodmap-diet
#15
REVIEW
Heidi Maria Staudacher
Dietary restriction of certain fermentable carbohydrates (low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) diet) is effective for managing symptoms of irritable bowel syndrome (IBS). However, there are potential consequences of this diet that relate to its impact on nutritional, microbiological, and health-related quality of life outcomes. Evidence suggests that the low FODMAP diet leads to some alterations in nutrient intake. For example, carbohydrate intake is reduced, and there is a decrease in the proportion of patients meeting the recommended intake for calcium...
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28243549/the-effect-of-soymilk-intake-on-the-fecal-microbiota-particularly-bifidobacterium-species-and-intestinal-environment-of-healthy-adults-a-pilot-study
#16
Tomohiko Fujisawa, Yuji Ohashi, Ryoichi Shin, Asako Narai-Kanayama, Takenori Nakagaki
The influence of soymilk on the fecal microbiota, particularly Bifidobacterium species, and metabolic activities were investigated in eight healthy adult humans. During the soymilk intake period, the number of bifidobacteria in feces was significantly higher (p<0.05) on day 14 of the soymilk intake period than before the intake period, whereas that of Enterobacteriaceae was significantly lower (p<0.05) on days 7 and 14 of the soymilk intake period than before the intake period. In an investigation of Bifidobacterium at the species or group level, the numbers of all species and groups studied slightly increased during the soymilk intake period...
2017: Bioscience of Microbiota, Food and Health
https://www.readbyqxmd.com/read/28243548/transition-of-the-intestinal-microbiota-of-dogs-with-age
#17
Hiroaki Masuoka, Kouya Shimada, Tomoyo Kiyosue-Yasuda, Masaharu Kiyosue, Yukie Oishi, Seiji Kimura, Akio Yamada, Kazuhiro Hirayama
Although it is established that the composition of the human intestinal microbiota changes with age, transition of the intestinal microbiota of animals with age has not been well studied. In the present study, we collected fresh fecal samples from dogs of 5 different age groups (pre-weanling, weanling, young, aged, senile) and analyzed the compositions of their intestinal microbiota with a culture-based method. The results suggested that the composition of the canine intestinal microbiota also changes with age...
2017: Bioscience of Microbiota, Food and Health
https://www.readbyqxmd.com/read/28225489/immunoregulation-effects-of-different-%C3%AE-%C3%AE-t-cells-and-toll-like-receptor-signaling-pathways-in-neonatal-necrotizing-enterocolitis
#18
Lei Hui, Yi Dai, Zhi Guo, Jiahui Zhang, Fang Zheng, Xiangli Bian, Zhimin Wu, Qin Jiang, Miaomiao Guo, Ke Ma, Jinping Zhang
The aim of the study was to observe cytokine and T-cell-related toll-like-receptor (TLR) changes in intestinal samples of neonatal necrotizing enterocolitis patients.Four necrotic bowels were collected from neonatal NEC patients with gestational ages of 28 to 29 weeks in our hospital, whereas 4 neonatal patients who underwent intestinal atresia surgery served as the controls. Intestinal flora was examined and IL-1, IL-2, IL-4, IL-6, IL-8, IL-10, TNF-α, IFN-γ, and IL-17 expressions in resected intestine samples, as well as in isolated gamma delta T (γδT) cells, were analyzed immunohistochemically and via quantitative RT-PCR...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28213540/characterization-of-the-physical-and-functional-interplay-between-mazf1-bif-and-its-noncognate-antitoxins-from-bifidobacterium-longum
#19
Yanxia Wei, Yang Li, Fan Yang, Qiong Wu, Dianbin Liu, Xiangyang Li, Hui Hua, Xiaomei Liu, Yugang Wang, Kuiyang Zheng, Renxian Tang
Bifidobacterium longum strain JDM301, a widely used commercial strain in China, encodes at least two MazEF-like modules and one RelBE-like toxin-antitoxin (TA) systems in its chromosome, designated as MazE1F1(Bif), MazE2F2(Bif) and RelBE(Bif), respectively. Bacterial TA systems play an important role in several stress responses, but the relationship between these TA systems is largely unknown. In this study, the interaction between MazF1(Bif) and MazE2(Bif) or RelB(Bif) was assessed in B. longum strain JDM301...
February 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28212383/novel-molecular-structural-and-evolutionary-characteristics-of-the-phosphoketolases-from-bifidobacteria-and-coriobacteriales
#20
Radhey S Gupta, Anish Nanda, Bijendra Khadka
Members from the order Bifidobacteriales, which include many species exhibiting health promoting effects, differ from all other organisms in using a unique pathway for carbohydrate metabolism, known as the "bifid shunt", which utilizes the enzyme phosphoketolase (PK) to carry out the phosphorolysis of both fructose-6-phosphate (F6P) and xylulose-5-phosphate (X5P). In contrast to bifidobacteria, the PKs found in other organisms (referred to XPK) are able to metabolize primarily X5P and show very little activity towards F6P...
2017: PloS One
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