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Intestinal microbiota nutrition

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https://www.readbyqxmd.com/read/27914804/nutrition-and-chronic-inflammatory-rheumatic-disease
#1
Luca Semerano, Chantal Julia, Ouidade Aitisha, Marie-Christophe Boissier
Nutrition is a major environmental influence on human health. Epidemiological and interventional studies suggest a pathophysiological or therapeutic role, respectively, for nutrition in inflammatory rheumatic diseases (IRDs). Nevertheless, the associations between nutrition and IRDs are often weak and inconsistent, and the available clinical trials on nutrition are methodologically flawed. Experimental evidence is accumulating that micronutrients in the diet may influence intestinal and systemic immune responses via complex interactions involving the gut microbiota...
November 30, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27908847/homeostasis-of-the-gut-barrier-and-potential-biomarkers
#2
Jerry M Wells, Robert J Brummer, Muriel Derrien, Thomas T MacDonald, Freddy Troost, Patrice D Cani, Vassilia Theodorou, Jan Dekker, Agnes Méheust, Willem M de Vos, Annick Mercenier, Arjen Nauta, Clara L Garcia-Rodenas
The gut barrier plays a crucial role by spatially compartmentalizing bacteria to the lumen through the production of secreted mucus and is fortified by the production of sIgA and antimicrobial peptides and proteins. With exception of sIgA the expression of these protective barrier factors is largely controlled by innate immune recognition of microbial molecular ligands. Several specialized adaptations and checkpoints are operating in the mucosa to scale the immune response according to the threat and prevent overreaction to the trillions of symbionts inhabiting the human intestine...
December 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27890642/protective-effect-of-quercetin-on-high-fat-diet-induced-non-alcoholic-fatty-liver-disease-in-mice-is-mediated-by-modulating-intestinal-microbiota-imbalance-and-related-gut-liver-axis-activation
#3
David Porras, Esther Nistal, Susana Martínez-Flórez, Sandra Pisonero-Vaquero, José Luis Olcoz, Ramiro Jover, Javier González-Gallego, María Victoria García-Mediavilla, Sonia Sánchez-Campos
Gut microbiota is involved in obesity, metabolic syndrome and the progression of nonalcoholic fatty liver disease (NAFLD). It has been recently suggested that the flavonoid quercetin may have the ability to modulate the intestinal microbiota composition, suggesting a prebiotic capacity which highlights a great therapeutic potential in NAFLD. The present study aims to investigate benefits of experimental treatment with quercetin on gut microbial balance and related gut-liver axis activation in a nutritional animal model of NAFLD associated to obesity...
November 25, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27889929/twenty-eight-years-of-intestinal-transplantation-in-paris-experience-of-the-oldest-european-centre
#4
F Lacaille, S Irtan, L Dupic, C Talbotec, F Lesage, V Colomb, N Salvi, F Moulin, F Sauvat, Y Aigrain, Y Revillon, O Goulet, C Chardot
AIM: Our aim is to describe our achievements in pediatric intestinal transplantation (ITx) and define areas for improvement. METHODS: After a period (1987-90) of 9 isolated small bowel transplants (SBTx) where only one patient survived with her graft, 110 ITx were performed on 101 children from 1994 to 2014: 60 SBTx, 45 liver-small bowel, 4 multivisceral (3 with kidneys), 1 modified multivisceral. Indications were short bowel syndrome (36), motility disorders (30), congenital enteropathies (34) and others (1)...
November 27, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27862411/natural-and-artificial-hyperimmune-solutions-impact-on-health-in-puppies
#5
H Mila, A Grellet, C Mariani, A Feugier, B Guard, J Suchodolski, J Steiner, S Chastant-Maillard
Colostrum and milk are complex mammary secretions providing the puppy with many nutritional and immunological factors, which play a crucial role for its correct development and survival. In the case of colostrum and/or milk intake deficiency, puppies are at increased risk of infectious diseases. This work reviews the various nutritional hyperimmune supplementations proposed to provide a passive immune protection and to positively impact puppies' health. Some strategies rely on canine immunoglobulins: canine colostrum banking and canine serum/plasma supplementation...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27856001/enteral-high-fat-polyunsaturated-fatty-acid-blend-alters-the-pathogen-composition-of-the-intestinal-microbiome-in-premature-infants-with-an-enterostomy
#6
Noelle Younge, Qing Yang, Patrick C Seed
OBJECTIVE: To determine the effect of enteral fish oil and safflower oil supplementation on the intestinal microbiome in infants with an enterostomy born premature. STUDY DESIGN: Infants with an enterostomy born premature were randomized to receive early enteral supplementation with a high-fat polyunsaturated fatty acid (HF-PUFA) blend of fish oil and safflower oil vs standard nutritional therapy. We used 16S rRNA gene sequencing for longitudinal profiling of the microbiome from the time of study entry until bowel reanastomosis...
November 15, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27833747/microbiota-host-interplay-at-the-gut-epithelial-level-health-and-nutrition
#7
REVIEW
Jean-Paul Lallès
Growing evidence suggests the implication of the gut microbiota in various facets of health and disease. In this review, the focus is put on microbiota-host molecular cross-talk at the gut epithelial level with special emphasis on two defense systems: intestinal alkaline phosphatase (IAP) and inducible heat shock proteins (iHSPs). Both IAP and iHSPs are induced by various microbial structural components (e.g. lipopolysaccharide, flagellin, CpG DNA motifs), metabolites (e.g. n-butyrate) or secreted signal molecules (e...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27832763/a-comparison-of-intestinal-microbiota-in-a-population-of-low-risk-infants-exposed-and-not-exposed-to-intrapartum-antibiotics-the-baby-microbiota-of-the-intestine-cohort-study-protocol
#8
Julia Simioni, Eileen K Hutton, Elizabeth Gunn, Alison C Holloway, Jennifer C Stearns, Helen McDonald, Andrea Mousseau, Jonathan D Schertzer, Elyanne M Ratcliffe, Lehana Thabane, Michael G Surette, Katherine M Morrison
BACKGROUND: The intestinal microbiota influences metabolic, nutritional, and immunologic processes and has been associated with a broad range of adverse health outcomes including asthma, obesity and Type 2 diabetes. Early life exposures may alter the course of gut microbial colonization leading to differences in metabolic and immune regulation throughout life. Although approximately 50 % of low-risk full-term infants born in Canada are exposed to intrapartum antibiotics, little is known about the influence of this common prophylactic treatment on the developing neonatal intestinal microbiota...
November 10, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27821062/the-highly-variable-microbiota-associated-to-intestinal-mucosa-correlates-with-growth-and-hypoxia-resistance-of-sea-bass-dicentrarchus-labrax-submitted-to-different-nutritional-histories
#9
François-Joël Gatesoupe, Christine Huelvan, Nicolas Le Bayon, Hervé Le Delliou, Lauriane Madec, Olivier Mouchel, Patrick Quazuguel, David Mazurais, José-Luis Zambonino-Infante
BACKGROUND: The better understanding of how intestinal microbiota interacts with fish health is one of the key to sustainable aquaculture development. The present experiment aimed at correlating active microbiota associated to intestinal mucosa with Specific Growth Rate (SGR) and Hypoxia Resistance Time (HRT) in European sea bass individuals submitted to different nutritional histories: the fish were fed either standard or unbalanced diets at first feeding, and then mixed before repeating the dietary challenge in a common garden approach at the juvenile stage...
November 8, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27817790/-research-advances-in-the-relationship-between-childhood-malnutrition-and-gut-microbiota
#10
Hui-Hui Wang, Fei-Qiu Wen, Ju-Rong Wei
Childhood malnutrition is an important disease threatening healthy growth of children worldwide. Gut microbiota has close links to food digestion, absorption and intestinal function. Current research considers that alterations in gut microbiota have been strongly implicated in childhood malnutrition. This review article addresses the latest understanding and evidence of interrelationship between gut microbiota and individual nutrition status, the changes of gut microbiota in different types of malnutrition, and the attribution of gut microbiota in the treatment and prognosis of malnutrition...
November 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/27813269/dietary-fibers-and-associated-phytochemicals-in-cereals
#11
REVIEW
Knud Erik Bach Knudsen, Natalja P Nørskov, Anne Katrine Bolvig, Mette Skou Hedemann, Helle Nygaard Laerke
Epidemiological studies have linked whole-grain (WG) cereal consumption to a reduced risk of developing several chronic diseases - coronary heart disease, arteriosclerosis, type-2 diabetes and some form of cancers. The underlying physiological mechanisms behind the protective effects of WG are unclear, but can most likely be assigned to a concerted action of dietary fiber (DF) and a wide variety of phytochemicals. Physiologically, it is important that soluble non-starch polysaccharides contribute to higher viscosity in the small intestine as this may influence rate and extent of digestion and absorption...
November 4, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27812352/impact-of-different-fecal-processing-methods-on-assessments-of-bacterial-diversity-in-the-human-intestine
#12
Yu-Hsin Hsieh, Courtney M Peterson, Anne Raggio, Michael J Keenan, Roy J Martin, Eric Ravussin, Maria L Marco
The intestinal microbiota are integral to understanding the relationships between nutrition and health. Therefore, fecal sampling and processing protocols for metagenomic surveys should be sufficiently robust, accurate, and reliable to identify the microorganisms present. We investigated the use of different fecal preparation methods on the bacterial community structures identified in human stools. Complete stools were collected from six healthy individuals and processed according to the following methods: (i) randomly sampled fresh stool, (ii) fresh stool homogenized in a blender for 2 min, (iii) randomly sampled frozen stool, and (iv) frozen stool homogenized in a blender for 2 min, or (v) homogenized in a pneumatic mixer for either 10, 20, or 30 min...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27812084/nutrition-oxidative-stress-and-intestinal-dysbiosis-influence-of-diet-on-gut-microbiota-in-inflammatory-bowel-diseases
#13
Giovanni Tomasello, Margherita Mazzola, Angelo Leone, Emanuele Sinagra, Giovanni Zummo, Felicia Farina, Provvidenza Damiani, Francesco Cappello, Alice Gerges Geagea, Abdo Jurjus, Tarek Bou Assi, Massimiliano Messina, Francesco Carini
BACKGROUND: Microbiota refers to the population of microorganisms (bacteria, viruses and fungi) that inhabit the entire gastrointestinal tract, more particularly the colon whose role is to maintain the integrity of the intestinal mucosa and control the proliferation of pathogenic bacteria. Alteration in the composition of the gut microbiota is called dysbiosis. Dysbiosis redisposes to inflammatory bowel diseases such as ulcerative colitis, Crohn disease and indeterminate colitis. METHODS: The purpose of this literature review is to elucidate the influence of diet on the composition of the gastrointestinal microbiota in the healthy gut and the role of diet in the development of dysbiosis...
October 26, 2016: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/27808595/nutrition-and-the-gut-microbiome-in-the-elderly
#14
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/27780972/developmental-origins-of-nafld-a-womb-with-a-clue
#15
REVIEW
Stephanie R Wesolowski, Karim C El Kasmi, Karen R Jonscher, Jacob E Friedman
Changes in the maternal environment leading to an altered intrauterine milieu can result in subtle insults to the fetus, promoting increased lifetime disease risk and/or disease acceleration in childhood and later in life. Particularly worrisome is that the prevalence of NAFLD is rapidly increasing among children and adults, and is being diagnosed at increasingly younger ages, pointing towards an early-life origin. A wealth of evidence, in humans and non-human primates, suggests that maternal nutrition affects the placenta and fetal tissues, leading to persistent changes in hepatic metabolism, mitochondrial function, the intestinal microbiota, liver macrophage activation and susceptibility to NASH postnatally...
October 26, 2016: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27741154/an-advanced-in-vitro-technology-platform-to-study-the-mechanism-of-action-of-prebiotics-and-probiotics-in-the-gastrointestinal-tract
#16
Massimo Marzorati, Tom Van de Wiele
The gastrointestinal tract (GIT) hosts the most complex microbial community in the human body. Given the extensive metabolic potential which is present in this community, this additional organ is of key importance to maintain a healthy status and several diseases are frequently correlated with an alteration of the composition/functionality of the gut microbiota. Consequently, there is a great interest in identifying potential approaches that could modulate the microbiota and its metabolism to bring about a positive health effect...
November 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27733402/protein-and-zinc-deficient-diets-modulate-the-murine-microbiome-and-metabolic-phenotype
#17
Jordi Mayneris-Perxachs, David T Bolick, Joy Leng, Greg L Medlock, Glynis L Kolling, Jason A Papin, Jonathan R Swann, Richard L Guerrant
BACKGROUND: Environmental enteropathy, which is linked to undernutrition and chronic infections, affects the physical and mental growth of children in developing areas worldwide. Key to understanding how these factors combine to shape developmental outcomes is to first understand the effects of nutritional deficiencies on the mammalian system including the effect on the gut microbiota. OBJECTIVE: We dissected the nutritional components of environmental enteropathy by analyzing the specific metabolic and gut-microbiota changes that occur in weaned-mouse models of zinc or protein deficiency compared with well-nourished controls...
November 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27721806/the-terrestrial-isopod-microbiome-an-all-in-one-toolbox-for-animal-microbe-interactions-of-ecological-relevance
#18
Didier Bouchon, Martin Zimmer, Jessica Dittmer
Bacterial symbionts represent essential drivers of arthropod ecology and evolution, influencing host traits such as nutrition, reproduction, immunity, and speciation. However, the majority of work on arthropod microbiota has been conducted in insects and more studies in non-model species across different ecological niches will be needed to complete our understanding of host-microbiota interactions. In this review, we present terrestrial isopod crustaceans as an emerging model organism to investigate symbiotic associations with potential relevance to ecosystem functioning...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27713989/assessment-of-the-prebiotic-effect-of-quinoa-and-amaranth-in-the-human-intestinal-ecosystem
#19
Beatriz Gullón, Patricia Gullón, Freni K Tavaria, Remedios Yáñez
Quinoa and amaranth belong to the group of the so called "superfoods" and have a nutritional composition that confers multiple benefits. In this work, we explored the possibility of these foods exhibiting a prebiotic effect. These pseudocereals were subjected to an in vitro digestion and used as carbon sources in batch cultures with faecal human inocula. The effects on the microbiota composition and their metabolic products were determined by assessment of variations in pH, short-chain fatty acid (SCFA) production and changes in the dynamic bacterial populations by fluorescence in situ hybridization (FISH)...
September 14, 2016: Food & Function
https://www.readbyqxmd.com/read/27713730/high-iron-sequestrating-bifidobacteria-inhibit-enteropathogen-growth-and-adhesion-to-intestinal-epithelial-cells-in-vitro
#20
Pamela Vazquez-Gutierrez, Tomas de Wouters, Julia Werder, Christophe Chassard, Christophe Lacroix
The gut microbiota plays an important role in host health, in particular by its barrier effect and competition with exogenous pathogenic bacteria. In the present study, the competition of Bifidobacterium pseudolongum PV8-2 (Bp PV8-2) and Bifidobacterium kashiwanohense PV20-2 (Bk PV20-2), isolated from anemic infant gut microbiota and selected for their high iron sequestration properties, was investigated against Salmonella Typhimurium (S. Typhi) and Escherichia coli O157:H45 (EHEC) by using co-culture tests and assays with intestinal cell lines...
2016: Frontiers in Microbiology
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