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https://www.readbyqxmd.com/read/28927249/gut-microbiota-obesity-and-metabolic-disorders
#1
Alessandro Federico, Marcello Dallio, Rosa DI Sarno, Valentina Giorgio, Luca Miele
Obesity, diabetes and metabolic disorders represent hugely significant problems concerning the health in Western countries and the study of gut microbiota in metabolic pathologies is part of this framework. Diet effects on intestinal microbial composition and its role in pathogenetic mechanisms responsible for both obesity and systemic, hepatic and adipose tissue inflammation, represent at the moment one of this mostpromising topic in gastroenterology research. Gut health safety is essential, but it needs to be further explored in order to understand and interrupt the pathogenetic mechanisms, which support a large number of diseases...
December 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28918138/characterizing-effects-of-feed-restriction-and-glucagon-like-peptide-2-administration-on-biomarkers-of-inflammation-and-intestinal-morphology
#2
S K Kvidera, E A Horst, M V Sanz Fernandez, M Abuajamieh, S Ganesan, P J Gorden, H B Green, K M Schoenberg, W E Trout, A F Keating, L H Baumgard
Inadequate feed consumption reduces intestinal barrier function in both ruminants and monogastrics. Objectives were to characterize how progressive feed restriction (FR) affects inflammation, metabolism, and intestinal morphology, and to investigate if glucagon-like peptide 2 (GLP2) administration influences the aforementioned responses. Twenty-eight Holstein cows (157 ± 9 d in milk) were enrolled in 2 experimental periods. Period 1 [5 d of ad libitum (AL) feed intake] served as baseline for period 2 (5 d), during which cows received 1 of 6 treatments: (1) 100% of AL feed intake (AL100; n = 3), (2) 80% of AL feed intake (n = 5), (3) 60% of AL feed intake (n = 5), (4) 40% of AL feed intake (AL40; n = 5), (5) 40% of AL feed intake + GLP2 administration (AL40G; 75 µg/kg of BW s...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28915390/navy-and-black-bean-supplementation-primes-the-colonic-mucosal-microenvironment-to-improve-gut-health
#3
Jennifer M Monk, Dion Lepp, Wenqing Wu, K Peter Pauls, Lindsay E Robinson, Krista A Power
Common beans (Phaseolus vulgaris L.) are enriched in non-digestible fermentable carbohydrates and phenolic compounds that can modulate the colonic microenvironment (microbiota and host epithelial barrier) to improve gut health. In a comprehensive assessment of the impact of two commonly consumed bean varieties (differing in levels and types of phenolic compounds) within the colonic microenvironment, C57Bl/6 mice were fed diets supplemented with 20% cooked navy bean (NB) or black bean (BB) flours or an isocaloric basal diet control (BD) for 3 weeks...
August 10, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28911547/multifunctions-of-dietary-polyphenols-in-the-regulation-of-intestinal-inflammation
#4
REVIEW
Makoto Shimizu
Food for specified health use is a type of functional food approved by the Japanese government, with more than 1250 products in 10 health-claim categories being approved as of April 2016. Polyphenols are currently used as functional ingredients in seven of the 10 categories. Although they have not yet been used for the food-for-specified-health-use category of "gut health promotion," polyphenols are expected to contribute to the future development of gut-modulating food. Intestinal functions include digestion/absorption, acting as a barrier, recognition of external factors, and signal transduction...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28904372/butyrate-producing-bacteria-supplemented-in-vitro-to-crohn-s-disease-patient-microbiota-increased-butyrate-production-and-enhanced-intestinal-epithelial-barrier-integrity
#5
Annelies Geirnaert, Marta Calatayud, Charlotte Grootaert, Debby Laukens, Sarah Devriese, Guy Smagghe, Martine De Vos, Nico Boon, Tom Van de Wiele
The management of the dysbiosed gut microbiota in inflammatory bowel diseases (IBD) is gaining more attention as a novel target to control this disease. Probiotic treatment with butyrate-producing bacteria has therapeutic potential since these bacteria are depleted in IBD patients and butyrate has beneficial effects on epithelial barrier function and overall gut health. However, studies assessing the effect of probiotic supplementation on microbe-microbe and host-microbe interactions are rare. In this study, butyrate-producing bacteria (three mono-species and one multispecies mix) were supplemented to the fecal microbial communities of ten Crohn's disease (CD) patients in an in vitro system simulating the mucus- and lumen-associated microbiota...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28892507/extreme-genome-diversity-in-the-hyper-prevalent-parasitic-eukaryote-blastocystis
#6
Eleni Gentekaki, Bruce A Curtis, Courtney W Stairs, Vladimír Klimeš, Marek Eliáš, Dayana E Salas-Leiva, Emily K Herman, Laura Eme, Maria C Arias, Bernard Henrissat, Frédérique Hilliou, Mary J Klute, Hiroshi Suga, Shehre-Banoo Malik, Arthur W Pightling, Martin Kolisko, Richard A Rachubinski, Alexander Schlacht, Darren M Soanes, Anastasios D Tsaousis, John M Archibald, Steven G Ball, Joel B Dacks, C Graham Clark, Mark van der Giezen, Andrew J Roger
Blastocystis is the most prevalent eukaryotic microbe colonizing the human gut, infecting approximately 1 billion individuals worldwide. Although Blastocystis has been linked to intestinal disorders, its pathogenicity remains controversial because most carriers are asymptomatic. Here, the genome sequence of Blastocystis subtype (ST) 1 is presented and compared to previously published sequences for ST4 and ST7. Despite a conserved core of genes, there is unexpected diversity between these STs in terms of their genome sizes, guanine-cytosine (GC) content, intron numbers, and gene content...
September 11, 2017: PLoS Biology
https://www.readbyqxmd.com/read/28887965/preparation-characterization-and-anti-colitis-activity-of-curcumin-asafoetida-complex-encapsulated-in-turmeric-nanofiber
#7
Sreeraj Gopi, Augustine Amalraj, Shintu Jude, Karthik Varma, T R Sreeraj, Józef T Haponiuk, Sabu Thomas
Ulcerative colitis (UC) is a main form of inflammatory bowel disease (IBD). Asafoetida (ASF) and turmeric have traditionally been used for the treatment of various inflammatory diseases, including UC, because ASF is rich in sulfur compounds and turmeric contains curcumin (CUR). Turmeric nanofiber (TNF), the modified cell wall component of turmeric is considered to play important role in the human diet, health and can be used as a carrier agent to encapsulate bioactive components. A novel gut health product (GHP) was formulated by encapsulation of ASF and CUR complex onto TNF...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28861741/probiotics-and-the-gut-immune-system-indirect-regulation
#8
REVIEW
Giorgio La Fata, Peter Weber, M Hasan Mohajeri
The gastrointestinal tract (GIT) represents the largest interface between the human organism and the external environment. In the lumen and upper part of the mucus layer, this organ hosts an enormous number of microorganisms whose composition affects the functions of the epithelial barrier and the gut immune system. Consequentially, the microorganisms in the GIT influence the health status of the organism. Probiotics are living microorganisms which, in specific conditions, confer a health benefit to the host...
August 31, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28861074/the-probiotic-combination-of-bifidobacterium-longum-subsp-infantis-cect-7210-and-bifidobacterium-animalis-subsp-lactis-bpl6-reduces-pathogen-loads-and-improves-gut-health-of-weaned-piglets-orally-challenged-with-salmonella-typhimurium
#9
Emili Barba-Vidal, Lorena Castillejos, Victor F B Roll, Gloria Cifuentes-Orjuela, José A Moreno Muñoz, Susana M Martín-Orúe
Probiotics have been demonstrated to be useful to enhance gut health and prevent gastrointestinal infections in humans. Additionally, some multi-strain probiotic combinations have been suggested to have greater efficacy than single strains. The objective of this study is to demonstrate the potential of a combination of the probiotic strains: Bifidobacterium longum subsp. infantis CECT 7210 (brand name B. infantis IM1(®)) and B. animalis subsp. lactis BPL6 to enhance gut health and to ameliorate the outcome of a Salmonella challenge using a weaning piglet model...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28837129/large-scale-comparative-metagenomics-of-blastocystis-a-common-member-of-the-human-gut-microbiome
#10
Francesco Beghini, Edoardo Pasolli, Tin Duy Truong, Lorenza Putignani, Simone M Cacciò, Nicola Segata
The influence of unicellular eukaryotic microorganisms on human gut health and disease is still largely unexplored. Blastocystis spp. commonly colonize the gut, but its clinical significance and ecological role are currently unsettled. We have developed a high-sensitivity bioinformatic pipeline to detect Blastocystis subtypes (STs) from shotgun metagenomics, and applied it to 12 large data sets, comprising 1689 subjects of different geographic origin, disease status and lifestyle. We confirmed and extended previous observations on the high prevalence the microrganism in the population (14...
August 22, 2017: ISME Journal
https://www.readbyqxmd.com/read/28830834/food-contact-materials-and-gut-health-implications-for-toxicity-assessment-and-relevance-of-high-molecular-weight-migrants
#11
REVIEW
Ksenia J Groh, Birgit Geueke, Jane Muncke
Gut health is determined by an intact epithelial barrier and balanced gut microbiota, both involved in the regulation of immune responses in the gut. Disruption of this system contributes to the etiology of various non-communicable diseases, including intestinal, metabolic, and autoimmune disorders. Studies suggest that some direct food additives, but also some food contaminants, such as pesticide residues and substances migrating from food contact materials (FCMs), may adversely affect the gut barrier or gut microbiota...
August 19, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28830091/bacteriocins-and-bacteriophage-a-narrow-minded-approach-to-food-and-gut-microbiology
#12
Susan Mills, R Paul Ross, Colin Hill
Bacteriocins and bacteriophage (phage) are biological tools which exhibit targeted microbial killing, a phenomenon which until recently was seen as a major drawback for their use as antimicrobial agents. However, in an age when the deleterious consequences of broad-spectrum antibiotics on human health have become apparent, there is an urgent need to develop narrow-spectrum substitutes. Indeed, disruption of the microbial communities which exist on and in our bodies can generate immediate and long-term negative effects and this is particularly borne out in the gut microbiota community whose disruption has been linked to a number of disorders reaching as far as the brain...
August 1, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28821240/avbd1-nucleotide-polymorphisms-peptide-antimicrobial-activities-and-microbial-colonisation-of-the-broiler-chicken-gut
#13
Kevin Cadwell, Sherko S Niranji, Vanessa L Armstrong, Catherine A Mowbray, Richard Bailey, Kellie A Watson, Judith Hall
BACKGROUND: The importance of poultry as a global source of protein underpins the chicken genome and associated SNP data as key tools in selecting and breeding healthy robust birds with improved disease resistance. SNPs affecting host peptides involved in the innate defences tend to be rare, but three non-synonymous SNPs in the avian β-defensin (AvBD1) gene encoding the variant peptides NYH, SSY and NYY were identified that segregated specifically to three lines of commercial broiler chickens Line X (LX), Line Y(LY) and Line Z...
August 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28808780/non-cns-pathogenic-origin-of-parkinson-s-disease
#14
Humdoon Choudhry, Lawrence C Perlmuter
The gut with its variety of microbiota may serve as an etiological origin of diseases. Gut microbes may also play a role in the pathogenesis of diseases beyond their simple nutritional maintenance and support. For example, gut protein aggregation, possibly aided by microbes as well as nasal influences, might be linked to disease that may move to the brain through the vagus nerve. To this end, Braak has offered a "dual-hit" hypothesis that proposes a novel etiology for Parkinson's disease (PD). The hypothesis places the initial origin of the disease in the nose and the gastrointestinal tract (GI) after infection by an unknown pathogen that could aggregate in the gut and then eventually spread to the brain via the autonomic plexuses...
August 14, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28805735/dietary-propolis-ameliorates-dextran-sulfate-sodium-induced-colitis-and-modulates-the-gut-microbiota-in-rats-fed-a-western-diet
#15
Kai Wang, Xiaolu Jin, Mengmeng You, Wenli Tian, Richard K Le Leu, David L Topping, Michael A Conlon, Liming Wu, Fuliang Hu
Propolis is an important hive product and considered beneficial to health. However, evidence of its potential for improving gut health is still lacking. Here we use rats to examine whether dietary supplementation with propolis could be used as a therapy for ulcerative colitis. Rats were fed with a Western style diet alone (controls) or supplemented with different amounts of Chinese propolis (0.1%, 0.2%, and 0.3%) to examine effects on acute colitis induced by 3% dextran sulphate sodium (DSS) in drinking water...
August 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28772225/an-lc-ms-ms-method-for-quantitation-of-chemopreventive-sphingadienes-in-food-products-and-biological-samples
#16
J H Suh, A M Makarova, J M Gomez, L A Paul, J D Saba
Colorectal cancer (CRC) is a leading cause of cancer mortality. Diet has a significant influence on colon cancer risk. Identifying chemopreventive agents, dietary constituents, practices and/or diet supplements that promote gut health and reduce the incidence of intestinal neoplasias and CRC could significantly impact public health. Sphingadienes (SDs) are dietary sphingolipids found in plant-based food products. SDs are cytotoxic to colon cancer cells and exhibit chemopreventive properties. The aim of the present study was to develop a sensitive and robust ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method for quantifying SDs in food products and biological samples...
July 24, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28769935/deciphering-the-complex-signaling-systems-that-regulate-intestinal-epithelial-cell-death-processes-and-shedding
#17
REVIEW
Angela M Patterson, Alastair J M Watson
Intestinal epithelial cells play a fundamental role in maintaining homeostasis. Shedding of intestinal cells in a controlled manner is critical to maintenance of barrier function. Barrier function is maintained during this shedding process by a redistribution of tight junctional proteins to facilitate closure of the gap left by the shedding cell. However, despite the obvious importance of epithelial cell shedding to gut health, a central question is how the extrusion of epithelial cells is achieved, enabling barrier integrity to be maintained in the healthy gut and restored during inflammation remains largely unanswered...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28754012/intra-amniotic-administration-gallus-gallus-of-cicer-arietinum-and-lens-culinaris-prebiotics-extracts-and-duck-egg-white-peptides-affects-calcium-status-and-intestinal-functionality
#18
Tao Hou, Nikolai Kolba, Raymond P Glahn, Elad Tako
Calcium (Ca) is one of the most abundant inorganic elements in the human body and has many important physiological roles. Prebiotics and bioactive peptides are two important substances used to promote calcium uptake. However, the difference in mechanisms of the calcium uptake from these two supplements is not clear. By using the Gallus gallus model and the intra-amniotic administration procedure, the aim of this study was to investigate whether Ca status, intestinal functionality, and health-promoting bacterial populations were affected by prebiotics extracted from chickpea and lentil, and duck egg white peptides (DPs)...
July 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28723186/ingestible-sensors
#19
Kourosh Kalantar-Zadeh, Nam Ha, Jian Zhen Ou, Kyle J Berean
Ingestible sensing capsules are fast emerging as a critical technology that has the ability to greatly impact health, nutrition, and clinical areas. These ingestible devices are noninvasive and hence are very attractive for customers. With widespread access to smart phones connected to the Internet, the data produced by this technology can be readily seen and reviewed online, and accessed by both users and physicians. The outputs provide invaluable information to reveal the state of gut health and disorders as well as the impact of food, medical supplements, and environmental changes on the gastrointestinal tract...
April 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28721546/health-benefits-observed-after-probiotic-lactobacillus-fermentum-ccm-7421-application-in-dogs
#20
REVIEW
Viola Strompfová, Ivana Kubašová, Andrea Lauková
The importance of the intestinal microbiota has attracted much interest in recent years particularly with respect to ways in which the microbiota can be manipulated in order to improve health. Improving gut health through the use of probiotic microorganisms has become an area of research activity in both human and animal nutrition. However, the amount of research using companion animals is insufficient. The present review evaluates and compares the effects achieved after application of canine-derived probiotic strain Lactobacillus fermentum CCM 7421 to healthy dogs as well as to dogs suffering from gastrointestinal disorders...
July 18, 2017: Applied Microbiology and Biotechnology
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