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https://www.readbyqxmd.com/read/28447345/in-vitro-microbial-protein-synthesis-ruminal-degradation-and-post-ruminal-digestibility-of-crude-protein-of-dairy-rations-containing-quebracho-tannin-extract
#1
J Castro-Montoya, E Westreicher-Kristen, A Henke, M Diaby, A Susenbeth, U Dickhoefer
This study evaluated the effects of Quebracho tannin extract (QTE) on in vitro ruminal fermentation, chemical composition of rumen microbes, ruminal degradation and intestinal digestibility of crude protein (iCPd). Three treatments were tested, the control (basal diet without QTE), the basal diet with 15 g QTE/kg dry matter (DM) and the basal diet with 30 g QTE/kg DM. The basal diet contained (g/kg DM): 339 grass silage, 317 maize silage and 344 concentrate. In vitro gas production kinetic was determined using the Hohenheim gas test (Experiment 1)...
April 26, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28444346/resistant-starch-as-a-novel-dietary-strategy-to-maintain-kidney-health-in-diabetes-mellitus
#2
Gar Yee Koh, Matthew J Rowling
The worldwide prevalence of diabetes mellitus is expected to reach 439 million by 2030. Diabetes increases the risk for developing secondary complications such as nephropathy and cardiovascular disease, critical factors that dictate the survival rate of diabetes patients. Compelling evidence has indicated that the positive impact of fermentable carbohydrates in obesity-related diabetes is mediated by the production of short-chain fatty acids and the modulation of colonic microbiota. This review summarizes the potential implications of dietary resistant starch, a class of fermentable fiber, in glucose homeostasis and kidney health in obesity-associated diabetes and examines the mechanisms underlying the protective effect of resistant starch...
April 22, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28444216/dietary-metabolites-derived-from-gut-microbiota-critical-modulators-of-epigenetic-changes-in-mammals
#3
Mohd Iqbal Bhat, Rajeev Kapila
The mammalian gastrointestinal tract harbors trillions of commensal microorganisms, collectively known as the microbiota. The microbiota is a critical source of environmental stimuli and, thus, has a tremendous impact on the health of the host. The microbes within the microbiota regulate homeostasis within the gut, and any alteration in their composition can lead to disorders that include inflammatory bowel disease, allergy, autoimmune disease, diabetes, mental disorders, and cancer. Hence, restoration of the gut flora following changes or imbalance is imperative for the host...
April 22, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28443847/the-impact-of-dietary-sn-2-palmitic-triacylglycerols-in-combination-with-docosahexaenoic-acid-or-arachidonic-acid-on-lipid-metabolism-and-host-faecal-microbiota-composition-in-sprague-dawley-rats
#4
Jianchun Wan, Songyou Hu, Jörg J Jacoby, Jie Liu, Yaqiong Zhang, Liangli Lucy Yu
Sn-2 palmitic acid triacylglycerols (sn2PA fat) and polyunsaturated fatty acids are thought to influence the metabolic status and intestinal bacterial population of the host. In this study, the impact of sn2PA fat in combination with DHA or ARA in the diet on lipid metabolism in the liver and faecal microbiota composition were investigated in rats fed diets containing sn2PA fat, 90% sn2PA fat + 10% DHA oil (wt%), or 90% sn2PA fat + 10% ARA oil (wt%). Tissue fatty acid composition was measured using gas chromatography (GC), whereas the faecal microbial composition was assessed using 16S rRNA high-throughput sequencing technology...
April 26, 2017: Food & Function
https://www.readbyqxmd.com/read/28443284/fecal-short-chain-fatty-acid-variations-by-breastfeeding-status-in-infants-at-4%C3%A2-months-differences-in-relative-versus-absolute-concentrations
#5
Sarah L Bridgman, Meghan B Azad, Catherine J Field, Andrea M Haqq, Allan B Becker, Piushkumar J Mandhane, Padmaja Subbarao, Stuart E Turvey, Malcolm R Sears, James A Scott, David S Wishart, Anita L Kozyrskyj
Our gut microbiota provide a number of important functions, one of which is the metabolism of dietary fiber and other macronutrients that are undigested by the host. The main products of this fermentation process are short-chain fatty acids (SCFAs) and other intermediate metabolites including lactate and succinate. Production of these metabolites is dependent on diet and gut microbiota composition. There is increasing evidence for the role of SCFAs in host physiology and metabolic processes as well as chronic inflammatory conditions such as allergic disease and obesity...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28443068/evaluation-of-the-probiotic-strain-bifidobacterium-longum-subsp-infantis-cect-7210-capacities-to-improve-health-status-and-fight-digestive-pathogens-in-a-piglet-model
#6
Emili Barba-Vidal, Lorena Castillejos, Paola López-Colom, Montserrat Rivero Urgell, José A Moreno Muñoz, Susana M Martín-Orúe
Probiotics have been demonstrated to be useful to enhance gut health and prevent gastrointestinal infections. The objective of this study is to demonstrate the potential of the probiotic strain Bifidobacterium longum subsp. infantis CECT 7210 (B. infantis IM1) to prevent and fight intestinal disease by using a Salmonella Typhimurium (Trial 1) or an enterotoxigenic Escherichia coli K88 (Trial 2) oral challenge in a weaning piglet model. Seventy-two piglets were used in each trial. After an adaptation period, animals were orally challenged...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28437455/effect-of-a-probiotic-beverage-consumption-enterococcus-faecium-crl-183-and-bifidobacterium-longum-atcc-15707-in-rats-with-chemically-induced-colitis
#7
Larissa Sbaglia Celiberto, Raquel Bedani, Naiara Naiana Dejani, Alexandra Ivo de Medeiros, José Antonio Sampaio Zuanon, Luis Carlos Spolidorio, Maria Angela Tallarico Adorno, Maria Bernadete Amâncio Varesche, Fábio Carrilho Galvão, Sandro Roberto Valentini, Graciela Font de Valdez, Elizeu Antonio Rossi, Daniela Cardoso Umbelino Cavallini
BACKGROUND: Some probiotic strains have the potential to assist in relieving the symptoms of inflammatory bowel disease. The impact of daily ingestion of a soy-based product fermented by Enterococcus faecium CRL 183 and Lactobacillus helveticus 416 with the addition of Bifidobacterium longum ATCC 15707 on chemically induced colitis has been investigated thereof within a period of 30 days. METHODS: Colitis was induced by dextran sulfate sodium. The animals were randomly assigned into five groups: Group C: negative control; Group CL: positive control; Group CLF: DSS with the fermented product; Group CLP: DSS with the non-fermented product (placebo); Group CLS: DSS with sulfasalazine...
2017: PloS One
https://www.readbyqxmd.com/read/28436589/short-chain-fatty-acids-augment-rat-duodenal-mucosal-barrier-function
#8
Wan Salman Wan Saudi, Markus Sjöblom
Short-chain fatty acids (SCFAs) are produced by bacterial fermentation in the large intestine, particularly from diets containing fibres and carbohydrates. The small intestinal epithelium is exposed to SCFAs derived mainly from oral bacteria or food supplementation. Although luminal nutrients are important in regulation of intestinal functions the role of SCFAs in regulation of small intestinal mucosal barrier function and motility has not been fully described. The aim of the present study was to elucidate the effects of acetate and propionate on duodenal mucosal barrier function and motility...
April 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28434722/prediction-of-milk-fatty-acid-content-with-mid-infrared-spectroscopy-in-canadian-dairy-cattle-using-differently-distributed-model-development-sets
#9
A Fleming, F S Schenkel, J Chen, F Malchiodi, V Bonfatti, R A Ali, B Mallard, M Corredig, F Miglior
The fatty acid profile of milk is a prevailing issue due to the potential negative or positive effects of different fatty acids to human health and nutrition. Mid-infrared spectroscopy can be used to obtain predictions of otherwise costly fatty acid phenotypes in a widespread and rapid manner. The objective of this study was to evaluate the prediction of fatty acid content for the Canadian dairy cattle population from mid-infrared spectral data and to compare the results produced by altering the partial least squares (PLS) model development set used...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28434033/the-gut-microbiome-as-a-target-for-prevention-and-treatment-of-hyperglycaemia-in-type-2-diabetes-from-current-human-evidence-to-future-possibilities
#10
REVIEW
Louise Brunkwall, Marju Orho-Melander
The totality of microbial genomes in the gut exceeds the size of the human genome, having around 500-fold more genes that importantly complement our coding potential. Microbial genes are essential for key metabolic processes, such as the breakdown of indigestible dietary fibres to short-chain fatty acids, biosynthesis of amino acids and vitamins, and production of neurotransmitters and hormones. During the last decade, evidence has accumulated to support a role for gut microbiota (analysed from faecal samples) in glycaemic control and type 2 diabetes...
April 22, 2017: Diabetologia
https://www.readbyqxmd.com/read/28431945/in-vitro-fermentation-behaviors-of-fucosylated-chondroitin-sulfate-from-pearsonothuria-graeffei-by-human-gut-microflora
#11
Chao-Yang Wei, Ning-Bo Liao, Yu Zhang, Xing-Qian Ye, Shan Li, Ya-Qin Hu, Dong-Hong Liu, Robert J Linhardt, Xin Wang, Shi-Guo Chen
A fucosylated chondroitin sulfate (FCS-pg) with highly repeated structure from Pearsonothuria graeffei was subjected to a in vitro fermentation model to investigate its fermentability and effects on human gut microflora. High performance liquid chromatography (HPLC) measurement found FCS-pg can be fermented to short chain fatty acids (SCFAs) by gut microflora from partial human fecal samples. 16S rRNA gene-based polymerase chain reaction-based denaturing gradient gel electrophoresis (PCR-DGGE) profiling and real-time quantitative PCR analysis showed that FCS-pg mainly increased the proportions of Clostridium cluster XI, Bacteriodes prevotella group, Bifidobacterium genus, Clostridium cluster I and Clostridium cluster XIVab, whereas the numbers of the Enterobacteriaceae and Lactobacillus decreased...
April 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28429671/ethanolamine-metabolism-in-the-mammalian-gastrointestinal-tract-mechanisms-patterns-and-importance
#12
J Zhou, X Xiong, K Wang, L Zou, D Lv, Y Yin
Nutritional exchanges and cooperation between bacteria in the gastrointestinal tract and the mammalian host play an important role in health and disease. Ethanolamine is an essential dietary lipid nutrient for animals and is abundant in both intestinal and bacterial cell membranes. Ethanolamine can be utilized by intestinal eukaryotic cells via the cytidine phosphoethanolamine pathway for de novo synthesis of phosphatidylethanolamine, and certain bacteria are able to catabolize it as a major carbon and/or nitrogen source with the help of ethanolamine utilization proteins...
March 31, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28427779/fish-oil-lc-pufas-do-not-affect-blood-coagulation-parameters-and-bleeding-manifestations-analysis-of-8-clinical-studies-with-selected-patient-groups-on-omega-3-enriched-medical-nutrition
#13
Stephanie Jeansen, Renger F Witkamp, Jossie A Garthoff, Ardy van Helvoort, Philip C Calder
BACKGROUND & AIMS: The increased consumption of fish oil enriched-products exposes a wide diversity of people, including elderly and those with impaired health to relatively high amounts of n-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs). There is an ongoing debate around the possible adverse effects of n-3 LC-PUFAs on bleeding risk, particularly relevant in people with a medical history of cardiovascular events or using antithrombotic drugs. METHODS: This analysis of 8 clinical intervention studies conducted with enteral medical nutrition products containing fish oil as a source of n-3 LC-PUFAs addresses the occurrence of bleeding-related adverse events and effects on key coagulation parameters (Prothrombin Time [PT], (activated) and Partial Thromboplastin Time [(a)PTT])...
March 29, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28425937/gamma-aminobutyric-acid-increases-the-production-of-short-chain-fatty-acids-and-decreases-ph-values-in-mouse-colon
#14
Min Xie, Hai-Hong Chen, Shao-Ping Nie, Jun-Yi Yin, Ming-Yong Xie
Gamma-Aminobutyric acid (GABA) could regulate physiological functions in the gastrointestinal tract. The present study aimed to investigate the effect of GABA on colon health in mice. The female Kunming mice were given GABA at doses of 5, 10, 20 and 40 mg/kg/d for 14 days. Afterwards, the short-chain fatty acids (SCFAs) concentrations, pH values, colon index, colon length and weight of colonic and cecal contents were determined to evaluate the effects of GABA on colon health. The results showed that intake of GABA could increase the concentrations of acetate, propionate, butyrate and total SCFAs in colonic and cecal contents, as well as the weight of colonic and cecal contents...
April 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28424507/heat-stress-in-dairy-cattle-alters-lipid-composition-of-milk
#15
Z Liu, V Ezernieks, J Wang, N Wanni Arachchillage, J B Garner, W J Wales, B G Cocks, S Rochfort
Heat stress, potentially affecting both the health of animals and the yield and composition of milk, occurs frequently in tropical, sub-tropical and temperate regions. A simulated acute heat stress experiment was conducted in controlled-climate chambers and milk samples collected before, during and after the heat challenge. Milk lipid composition, surveyed using LC-MS, showed significant changes in triacylglycerol (TAG) and polar lipid profiles. Heat stress (temperature-humidity index up to 84) was associated with a reduction in TAG groups containing short- and medium-chain fatty acids and a concomitant increase in those containing long-chain fatty acids...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28420790/honeybee-gut-microbiota-promotes-host-weight-gain-via-bacterial-metabolism-and-hormonal-signaling
#16
Hao Zheng, J Elijah Powell, Margaret I Steele, Carsten Dietrich, Nancy A Moran
Social bees harbor a simple and specialized microbiota that is spatially organized into different gut compartments. Recent results on the potential involvement of bee gut communities in pathogen protection and nutritional function have drawn attention to the impact of the microbiota on bee health. However, the contributions of gut microbiota to host physiology have yet to be investigated. Here we show that the gut microbiota promotes weight gain of both whole body and the gut in individual honey bees. This effect is likely mediated by changes in host vitellogenin, insulin signaling, and gustatory response...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28419937/validation-and-application-of-an-ultrahigh-performance-liquid-chromatographic-orbitrap-mass-spectrometric-method-for-the-simultaneous-detection-and-quantification-of-volatile-and-non-volatile-organic-acids-in-human-faecal-samples
#17
Claudio Gardana, Cristian Del Bo', Paolo Simonetti
A simple and selective ultrahigh-performance liquid chromatographic-Orbitrap mass spectrometric (UHPLC-HR-MS) method was developed and validated for the simultaneous detection and quantification of short-chain fatty acids (SCFAs) such as acetic, propionic, butyric, isobutyric, valeric, isovaleric, 2-methyl-butyric (IS) and lactic, pyruvic and succinic acid in human faecal samples. A simple extraction procedure with 0.001% formic acid in water was performed on 40 samples. The extracts were centrifuged and analyzed by UHPLC-HR-MS on a sub-2μm column using gradient elution; meanwhile, the same samples were analyzed by GC-FID and HPLC-UV as reference methods The UHPLC-HR-MS method showed a recovery of 83-105%, a repeatability of 2...
April 10, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28418384/dietary-short-chain-fatty-acids-protect-against-type-1-diabetes
#18
Li Wen, F Susan Wong
No abstract text is available yet for this article.
April 18, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28415978/bacterial-communities-and-metabolic-activity-of-faecal-cultures-from-equol-producer-and-non-producer-menopausal-women-under-treatment-with-soy-isoflavones
#19
Lucía Guadamuro, Anja B Dohrmann, Christoph C Tebbe, Baltasar Mayo, Susana Delgado
BACKGROUND: Isoflavones are polyphenols with estrogenic activity found mainly in soy and soy-derived products that need to be metabolised in the intestine by the gut bacteria to be fully active. There is little knowledge about isoflavone bioconversion and equol production in the human intestine. In this work, we developed an in vitro anaerobic culture model based on faecal slurries to assess the impact of isoflavone supplementation on the overall intestinal bacterial composition changes and associated metabolic transformations...
April 17, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28414469/correlations-between-structure-and-near-infrared-spectra-of-saturated-and-unsaturated-carboxylic-acids-an-insight-from-anharmonic-dft-calculations
#20
Justyna Grabska, Mika Ishigaki, Krzysztof Bernard Beć, Marek Janusz Wojcik, Yukihiro Ozaki
By near-infrared (NIR) spectroscopy and anharmonic DFT calculations we investigate five kinds of saturated and unsaturated carboxylic acids belonging to the group of short-chain fatty acids; propionic acid, butyric acid, acrylic acid, crotonic acid and vinylacetic acid. The experimental NIR spectra of these five kinds of carboxylic acids are reproduced by quantum chemical calculations in a broad spectral region of 7500-4000 cm(-1) and for a wide range of concentrations. By employing anharmonic GVPT2 calculations on DFT level, a detailed interpretation of experimental spectra is achieved, elucidating structure-spectra correlations of these molecules in the NIR region...
April 17, 2017: Journal of Physical Chemistry. A
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