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Microbiome prebiotics

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https://www.readbyqxmd.com/read/28029408/gut-microbiota-and-allergy-asthma-from-pathogenesis-to-new-therapeutic-strategies
#1
REVIEW
Y B Kang, Y Cai, H Zhang
Asthma and atopy, classically associated with hyper-activation of the T helper 2 (Th2) arm of adaptive immunity, are among the most common chronic illnesses worldwide. Emerging evidence relates atopy and asthma to the composition and function of gut microbiota composition. Moreover, certain gut microbial strains have been shown to inhibit or attenuate immune responses associated with chronic inflammation in experimental models. Although still a relatively nascent field of research, evidence to date suggests that the gut microbiome may represent fertile targets for prevention or management of allergic asthma and other diseases in which adaptive immune dysfunction is a prominent feature...
October 28, 2016: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/27997976/the-microbiome-what-will-the-future-hold
#2
Howard Paul Monsour, Eamonn M M Quigley
Current research on the human microbiome has opened our eyes to the intimate relationship that we have with the bacteria that populate our gastrointestinal tract and its potential relationship to health and disease. To date, clinical research on the microbiome has identified intriguing associations between an altered microbiome and disease states, but proven therapeutic applications have been very limited. The ingestion of prebiotics, probiotics, and/or synbiotics is appealing to the general public and has significant commercial value, but as yet, solid evidence for clinical efficacy in liver disease has been lacking due, in large part, to the paucity of high-quality clinical trials...
September 2016: Seminars in Liver Disease
https://www.readbyqxmd.com/read/27989793/community-metabolic-modeling-approaches-to-understanding-the-gut-microbiome-bridging-biochemistry-and-ecology
#3
REVIEW
Helena Mendes-Soares, Nicholas Chia
Interest in the human microbiome is at an all time high. The number of human microbiome studies is growing exponentially, as are reported associations between microbial communities and disease. However, we have not been able to translate the ever-growing amount of microbiome sequence data into better health. To do this, we need a practical means of transforming a disease-associated microbiome into a health-associated microbiome. This will require a framework that can be used to generate predictions about community dynamics within the microbiome under different conditions, predictions that can be tested and validated...
December 15, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27974055/host-microbiome-interactions-in-human-type-2-diabetes-following-prebiotic-fibre-galacto-oligosaccharide-intake
#4
Camilla Pedersen, Edith Gallagher, Felicity Horton, Richard J Ellis, Umer Z Ijaz, Huihai Wu, Etana Jaiyeola, Onyinye Diribe, Thibaut Duparc, Patrice D Cani, Glenn R Gibson, Paul Hinton, John Wright, Roberto La Ragione, M Denise Robertson
Aberrant microbiota composition and function have been linked to several pathologies, including type 2 diabetes. In animal models, prebiotics induce favourable changes in the intestinal microbiota, intestinal permeability (IP) and endotoxaemia, which are linked to concurrent improvement in glucose tolerance. This is the first study to investigate the link between IP, glucose tolerance and intestinal bacteria in human type 2 diabetes. In all, twenty-nine men with well-controlled type 2 diabetes were randomised to a prebiotic (galacto-oligosaccharide mixture) or placebo (maltodextrin) supplement (5·5 g/d for 12 weeks)...
December 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27924137/exercise-induced-stress-behavior-gut-microbiota-brain-axis-and-diet-a-systematic-review-for-athletes
#5
REVIEW
Allison Clark, Núria Mach
Fatigue, mood disturbances, under performance and gastrointestinal distress are common among athletes during training and competition. The psychosocial and physical demands during intense exercise can initiate a stress response activating the sympathetic-adrenomedullary and hypothalamus-pituitary-adrenal (HPA) axes, resulting in the release of stress and catabolic hormones, inflammatory cytokines and microbial molecules. The gut is home to trillions of microorganisms that have fundamental roles in many aspects of human biology, including metabolism, endocrine, neuronal and immune function...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27922565/a-perspective-on-brain-gut-communication-the-american-gastroenterology-association-and-american-psychosomatic-society-joint-symposium-on-brain-gut-interactions-and-the-intestinal-microenvironment
#6
Olga C Aroniadis, Douglas A Drossman, Magnus Simren
BACKGROUND: Alterations in brain-gut communication and the intestinal microenvironment have been implicated in a variety of medical and neuropsychiatric diseases. Three central areas require basic and clinical research: (1) how the intestinal microenvironment interacts with the host immune system, central nervous system and enteric nervous system; (2) the role of the intestinal microenvironment in the pathogenesis of medical and neuropsychiatric disease; (3) the effects of diet, prebiotics, probiotics and fecal microbiota transplantation on the intestinal microenvironment and the treatment of disease...
December 2, 2016: Psychosomatic Medicine
https://www.readbyqxmd.com/read/27912759/intestinal-dysbiosis-and-allogeneic-hematopoietic-progenitor-cell-transplantation
#7
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/27910783/recent-advances-and-challenges-in-studies-of-control-of-cancer-stem-cells-and-the-gut-microbiome-by-the-trametes-derived-polysaccharopeptide-psp-review
#8
Joseph M Wu, Barbara B Doonan, Tze-Chen Hsieh, Qingyao Yang, Xiao-Tong Yang, Ming-Tat Ling
The medicinal mushroom Trametes versicolor has been well recognized for its activity in maintaining the general health of the population and in managing and treating human diseases in various cultures. Its use has been recently gaining acceptance and popularity in Western countries. The reported health benefits of T. versicolor led to a search for the identity of its bioactive ingredients. These efforts have resulted in the isolation of the polysaccharopeptide PSP from cultured mycelia of strain Cov-1, which expresses large amounts of PSP...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27893069/new-medical-and-surgical-insights-into-neonatal-necrotizing-enterocolitis-a-review
#9
Brandy L Frost, Biren P Modi, Tom Jaksic, Michael S Caplan
Importance: Necrotizing enterocolitis (NEC) has long remained a significant cause of morbidity and mortality in neonatal intensive care units. While the mainstay of treatment for this devastating condition remains largely supportive, research efforts continue to be directed toward understanding pathophysiology as well as how best to approach surgical management when indicated. Observations: In this review, we first examine recent medical observations, including overviews on the microbiome and a brief review of the use of probiotics...
January 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/27892611/towards-a-bacterial-treatment-for-armpit-malodour
#10
Chris Callewaert, Jo Lambert, Tom Van de Wiele
Axillary malodour is a frustrating condition for many people. It can lead to significant discomforts and various psychological effects. The underarm microbiome generally plays a major role in axillary malodour formation. Not only the bacteria on the armpit epidermis, but especially those living in the sweat glands, sweat pores and hair follicles play a pivotal role in malodour development. In order to treat underarm malodour, this viewpoint paper envisions a bacterial treatment. Replacing the autochthonous malodour causing microbiome with a non-odour causing microbiome, through an armpit bacterial transplantation or direct application of probiotics/non-odour causing bacteria could resolve the condition...
November 28, 2016: Experimental Dermatology
https://www.readbyqxmd.com/read/27872611/hypocholesterolemic-and-prebiotic-effects-of-a-whole-grain-oat-based-granola-breakfast-cereal-in-a-cardio-metabolic-at-risk-population
#11
Michael L Connolly, Xenofon Tzounis, Kieran M Tuohy, Julie A Lovegrove
Meta-analyses of randomized controlled trials (RTC) have confirmed the hypocholesterolaemic effect of oats and oat based fibers. However, the mechanisms by which oats or oat fractions lower cholesterol is not totally clear. Recognizing the important role of the gut microbiome in metabolism and metabolic disease risk, we examined the impact of whole grain oat Granola (WGO) on the human gut microbiota and cardio-metabolic risk factors using a randomized crossover dietary intervention in at risk individuals (ClinicalTrials...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27864534/microbiome-and-nutrition-in-autism-spectrum-disorder-current-knowledge-and-research-needs
#12
Kirsten Berding, Sharon M Donovan
Autism spectrum disorder (ASD) is the fastest growing neurodevelopmental disorder in the United States. Besides genetic risks, environmental factors have been suggested to contribute to the increase in ASD diagnosis over the past decade. Several studies have reported abnormalities in microbiota composition and differences in microbial metabolites in children with ASD. Gastrointestinal discomfort is commonly reported in children with ASD. Additionally, food selectivity and picky eating patterns are commonly reported...
December 2016: Nutrition Reviews
https://www.readbyqxmd.com/read/27808595/nutrition-and-the-gut-microbiome-in-the-elderly
#13
Nuria Salazar, Lorena Valdés-Varela, Sonia González, Miguel Gueimonde, Clara G de Los Reyes-Gavilán
The gut microbiota is the assembly of microorganisms living in our intestine and their genomes are known as the microbiome. The correct composition and functionality of this microbiome is essential for maintaining a "healthy status." Aging is related to changes in the gut microbiota which are frequently associated with physiological modifications of the gastrointestinal tract, as well as, to changes in dietary patterns, together with a concomitant decline in cognitive and immune function, all together contributing to frailty...
November 3, 2016: Gut Microbes
https://www.readbyqxmd.com/read/27802157/gut-microbiome-and-liver-diseases
#14
REVIEW
Herbert Tilg, Patrice D Cani, Emeran A Mayer
The gut microbiota has recently evolved as a new important player in the pathophysiology of many intestinal and extraintestinal diseases. The liver is the organ which is in closest contact with the intestinal tract, and is exposed to a substantial amount of bacterial components and metabolites. Various liver disorders such as alcoholic liver disease, non-alcoholic liver disease and primary sclerosing cholangitis have been associated with an altered microbiome. This dysbiosis may influence the degree of hepatic steatosis, inflammation and fibrosis through multiple interactions with the host's immune system and other cell types...
October 8, 2016: Gut
https://www.readbyqxmd.com/read/27795585/the-gut-microbiome-and-its-role-in-obesity
#15
Cindy D Davis
The human body is host to a vast number of microbes, including bacterial, fungal and protozoal microoganisms, which together constitute our microbiota. Evidence is emerging that the intestinal microbiome is intrinsically linked with overall health, including obesity risk. Obesity and obesity-related metabolic disorders are characterized by specific alterations in the composition and function of the human gut microbiome. Mechanistic studies have indicated that the gastrointestinal microbiota can influence both sides of the energy balance equation; namely, as a factor influencing energy utilization from the diet and as a factor that influences host genes that regulate energy expenditure and storage...
July 2016: Nutrition Today
https://www.readbyqxmd.com/read/27793434/psychobiotics-and-the-manipulation-of-bacteria-gut-brain-signals
#16
REVIEW
Amar Sarkar, Soili M Lehto, Siobhán Harty, Timothy G Dinan, John F Cryan, Philip W J Burnet
Psychobiotics were previously defined as live bacteria (probiotics) which, when ingested, confer mental health benefits through interactions with commensal gut bacteria. We expand this definition to encompass prebiotics, which enhance the growth of beneficial gut bacteria. We review probiotic and prebiotic effects on emotional, cognitive, systemic, and neural variables relevant to health and disease. We discuss gut-brain signalling mechanisms enabling psychobiotic effects, such as metabolite production. Overall, knowledge of how the microbiome responds to exogenous influence remains limited...
November 2016: Trends in Neurosciences
https://www.readbyqxmd.com/read/27793220/the-influence-of-prebiotics-on-neurobiology-and-behavior
#17
A C C Kao, S Harty, P W J Burnet
Manipulating the intestinal microbiota for the benefit of the brain is a concept that has become widely acknowledged. Prebiotics are nondigestible nutrients (i.e., fibers, carbohydrates, or various saccharides) that proliferate intrinsic, beneficial gut bacteria, and so provide an alternative strategy for effectively altering the enteric ecosystem, and thence brain function. Rodent studies demonstrating neurobiological changes following prebiotic intake are slowly emerging, and have thus far revealed significant benefits in disease models, including antiinflammatory and neuroprotective actions...
2016: International Review of Neurobiology
https://www.readbyqxmd.com/read/27774001/the-significance-of-the-enteric-microbiome-on-the-development-of-childhood-disease-a-review-of-prebiotic-and-probiotic-therapies-in-disorders-of-childhood
#18
REVIEW
John Slattery, Derrick F MacFabe, Richard E Frye
Recent studies have highlighted the fact that the enteric microbiome, the trillions of microbes that inhabit the human digestive tract, has a significant effect on health and disease. Methods for manipulating the enteric microbiome, particularly through probiotics and microbial ecosystem transplantation, have undergone some study in clinical trials. We review some of the evidence for microbiome alteration in relation to childhood disease and discuss the clinical trials that have examined the manipulation of the microbiome in an effort to prevent or treat childhood disease with a primary focus on probiotics, prebiotics, and/or synbiotics (ie, probiotics + prebiotics)...
2016: Clinical Medicine Insights. Pediatrics
https://www.readbyqxmd.com/read/27743467/therapeutic-modulation-of-the-gut-microbiota-in-ibd-more-questions-to-be-answered
#19
Yu Qi Qiao, Chen Wen Cai, Zhi Hua Ran
Inflammatory bowel disease (IBD) patients exhibit impaired control of the microbiome in the gut. "Dysbiosis" is commonly observed. A Western diet is a risk factor for the development of IBD but may have different effects on the gut microbiota in IBD and non-IBD individuals. Exclusive enteral nutrition (EEN) can induce remission in pediatric Crohn's disease (CD) with a decrease in gut microbiome diversity after EEN treatment. Although there are some theoretical benefits, the actual treatment effects of prebiotics and probiotics in IBD patients can vary...
October 15, 2016: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/27702710/fructans-in-the-first-1000-days-of-life-and-beyond-and-for-pregnancy
#20
REVIEW
Agus Firmansyah, Nalinee Chongviriyaphan, Drupadi Hs Dillon, Nguyen Cong Khan, Tatsuya Morita, Kraisid Tontisirin, Le Danh Tuyen, Weiping Wang, Jacques Bindels, Paul Deurenberg, Sherlin Ong, Jo Hautvast, Diederick Meyer, Elaine E Vaughan
Inulin-based prebiotics are non-digestible polysaccharides that influence the composition of the gut microbiota in infants and children, notably eliciting a bifidogenic effect with high short chain fatty acid levels. Inulin, a generic term that comprises β-(2,1)-linked linear fructans, is typically isolated from the chicory plant root, and derivatives such as oligofructose and long chain inulin appear to have different physiological properties. The first 1000 days of a child's life are increasingly recognized as a critical timeframe for health also into adulthood, whereby nutrition plays a key role...
December 2016: Asia Pacific Journal of Clinical Nutrition
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