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Probiotic AND METABOLISM

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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
#1
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/28432400/-the-intestinal-microbiome-and-metabolic-diseases-from-obesity-to-diabetes-and-nonalcoholic-steatohepatitis
#2
S C Bischoff
BACKGROUND: The intestinal microbiome consists of about 10 million genes, many of which encode digestive enzymes. This explains why animal and human experiments revealed that the intestinal microbiome adapts to food intake and optimizes energy harvest from food. This function is considered beneficial in states of lack of food, but following overnutrition, it might support the development of obesity. OBJECTIVES: The relevance of the intestinal microbiome for the pathogenesis of obesity and associated metabolic diseases such as fatty liver disease and type 2 diabetes mellitus and for the clinical management of such diseases shall be discussed...
April 21, 2017: Der Internist
https://www.readbyqxmd.com/read/28429701/-microbiota-and-metabolic-syndrome
#3
Yüksel Altuntaş, Adnan Batman
The role of gut bacteria in the pathogenesis and treatment of various diseases has been a focus of attention in the last 10 years. Prevalence of diabetes, obesity, and cardiovascular diseases continues to increase, in spite of technological developments and treatment alternatives. Microbial dysbiosis, described as the decrease of useful bacteria and the increase of harmful bacteria, has been associated with diabetes, obesity, atherosclerosis, and metabolic syndrome. In microbial dysbiosis, increase of harmful metabolites and changes to composition of bile acids occur via carbohydrate and protein fermentation...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28426878/microbiota-nash-hcc-and-the-potential-role-of-probiotics
#4
Giovanni Brandi, Stefania De Lorenzo, Marco Candela, Maria Abbondanza Pantaleo, Stefano Bellentani, Francesco Tovoli, Gioconda Saccoccio, Guido Biasco
Hepatocellular carcinoma (HCC) accounts for the majority of primary liver cancers. Clearly identifiable risk factors are lacking in up to 30% of HCC patients and most of these cases are attributed to non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH). Beyond the known risk factors for NAFLD, the intestinal microbiota, in particular dysbiosis (defined as any change in the composition of the microbiota commonly found in healthy conditions) is emerging as a new factor promoting the development of chronic liver diseases and HCC...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28421057/gut-microbiota-modulation-and-its-relationship-with-obesity-using-prebiotic-fibers-and-probiotics-a-review
#5
REVIEW
Dinesh K Dahiya, Renuka, Monica Puniya, Umesh K Shandilya, Tejpal Dhewa, Nikhil Kumar, Sanjeev Kumar, Anil K Puniya, Pratyoosh Shukla
In the present world scenario, obesity has almost attained the level of a pandemic and is progressing at a rapid rate. This disease is the mother of all other metabolic disorders, which apart from placing an added financial burden on the concerned patient also has a negative impact on his/her well-being and health in the society. Among the various plausible factors for the development of obesity, the role of gut microbiota is very crucial. In general, the gut of an individual is inhabited by trillions of microbes that play a significant role in host energy homeostasis by their symbiotic interactions...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28411221/an-extracellular-cell-attached-pullulanase-confers-branched-%C3%AE-glucan-utilization-in-human-gut-lactobacillus-acidophilus
#6
Marie S Møller, Yong Jun Goh, Kasper Bøwig Rasmussen, Wojciech Cypryk, Hasan Ufuk Celebioglu, Todd R Klaenhammer, Birte Svensson, Maher Abou Hachem
Of the few predicted extracellular glycan-active enzymes, glycoside hydrolase family 13 subfamily 14 (GH13_14) pullulanases are the most common in human gut lactobacilli. These enzymes share a unique modular organization, not observed in other bacteria, featuring a catalytic module, two starch binding modules, a domain of unknown function, and a C-terminal surface layer association protein (SLAP) domain. Here we explore the specificity of a representative of this group of pullulanases, LaPul13_14 and its role in branched α-glucans metabolism in the well characterized Lactobacillus acidophilus NCFM that is widely used as a probiotic...
April 14, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28408909/the-maternal-diet-gut-bacteria-and-bacterial-metabolites-during-pregnancy-influence-offspring-asthma
#7
REVIEW
Lawrence E K Gray, Martin O'Hely, Sarath Ranganathan, Peter David Sly, Peter Vuillermin
This review focuses on the current evidence that maternal dietary and gut bacterial exposures during pregnancy influence the developing fetal immune system and subsequent offspring asthma. Part 1 addresses exposure to a farm environment, antibiotics, and prebiotic and probiotic supplementation that together indicate the importance of bacterial experience in immune programming and offspring asthma. Part 2 outlines proposed mechanisms to explain these associations including bacterial exposure of the fetoplacental unit; immunoglobulin-related transplacental transport of gut bacterial components; cytokine signaling producing fetomaternal immune alignment; and immune programming via metabolites produced by gut bacteria...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28402523/role-of-short-chain-fatty-acids-in-colonic-inflammation-carcinogenesis-and-mucosal-protection-and-healing
#8
Christina M van der Beek, Cornelis H C Dejong, Freddy J Troost, Ad A M Masclee, Kaatje Lenaerts
Short-chain fatty acids (SCFAs), mainly acetate, propionate, and butyrate, produced by microbial fermentation of undigested food substances are believed to play a beneficial role in human gut health. Short-chain fatty acids influence colonic health through various mechanisms. In vitro and ex vivo studies show that SCFAs have anti-inflammatory and anticarcinogenic effects, play an important role in maintaining metabolic homeostasis in colonocytes, and protect colonocytes from external harm. Animal studies have found substantial positive effects of SCFAs or dietary fiber on colonic disease, but convincing evidence in humans is lacking...
April 10, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28389641/dual-function-of-tropodithietic-acid-as-antibiotic-and-signaling-molecule-in-global-gene-regulation-of-the-probiotic-bacterium-phaeobacter-inhibens
#9
Paul G Beyersmann, Jürgen Tomasch, Kwangmin Son, Roman Stocker, Markus Göker, Irene Wagner-Döbler, Meinhard Simon, Thorsten Brinkhoff
Antibiotics are typically regarded as microbial weapons, but whereas their function at concentrations lethal for bacteria is often well characterized, the role of antibiotics at much lower concentrations as possibly found under natural conditions remains poorly understood. By using whole-transcriptome analyses and phenotypic screenings of the marine bacterium Phaeobacter inhibens we found that the broad-spectrum antibiotic tropodithietic acid (TDA) causes the same regulatory effects in quorum sensing (QS) as the common signaling molecule N-acyl-homoserine lactone (AHL) at concentrations 100-fold lower than the minimal inhibitory concentration against bacteria...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28389560/introduction-to-the-thematic-minireview-series-host-microbiome-metabolic-interplay
#10
Ruma Banerjee
Long before the recent thrust of scientific research on the microbiome, the importance of its interface with the host was being acknowledged by practices such as probiotic supplementation e.g., after a course of antibiotics, which has the unwanted side effect of depleting commensal bacteria. The shared metabolite capital between the host and the microbiome is extensive and tightly controlled. However, despite the influence of microbial-derived metabolites on many aspects of host physiology, behavior and pathology, our understanding of this metabolic interface is still in its infancy and its therapeutic targeting is largely untapped...
April 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28387884/the-probiotics-in-dentistry-a-narrative-review
#11
A M Pujia, M Costacurta, L Fortunato, G Merra, S Cascapera, M Calvani, S Gratteri
The total number of microbes that colonize the human body is far greater than the number of cells that make it up. In recent years, it has been shown that bacteria play an essential role in the body; in fact, they are essential for the maturation of the intestine, the development and control of the immune system, the development of the brain, the metabolism of macronutrients, the synthesis of vitamins, and the energy balance. Bacteria play an essential role in defense of their territory against the entry of other bacteria that may be pathogenic to health...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28384412/second-era-of-omics-in-caries-research-moving-past-the-phase-of-disillusionment
#12
M M Nascimento, E Zaura, A Mira, N Takahashi, J M Ten Cate
Novel approaches using OMICS techniques enable a collective assessment of multiple related biological units, including genes, gene expression, proteins, and metabolites. In the past decade, next-generation sequencing ( NGS) technologies were improved by longer sequence reads and the development of genome databases and user-friendly pipelines for data analysis, all accessible at lower cost. This has generated an outburst of high-throughput data. The application of OMICS has provided more depth to existing hypotheses as well as new insights in the etiology of dental caries...
April 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28376573/the-gut-microbiome
#13
Mayenaaz Sidhu, David van der Poorten
BACKGROUND: More than a trillion, mostly good, microbes live within our gastrointestinal tract and are responsible for vital metabolic, immune and nutritional functions. Dysbiosis, meaning a maladaptive imbalance of the microbiome, is associated with many common diseases and is a target for therapy. OBJECTIVE: This article provides an overview of the gut microbiome in health and disease, highlighting conditions such as Clostridium difficile infection, inflammatory bowel disease, irritable bowel syndrome, obesity and non-alcoholic fatty liver disease, with which dysbiosis is associated...
2017: Australian Family Physician
https://www.readbyqxmd.com/read/28375181/dietary-metabolites-and-chronic-kidney-disease
#14
REVIEW
Sho Hasegawa, Tzu-Ming Jao, Reiko Inagi
Dietary contents and their metabolites are closely related to chronic kidney disease (CKD) progression. Advanced glycated end products (AGEs) are a type of uremic toxin produced by glycation. AGE accumulation is not only the result of elevated glucose levels or reduced renal clearance capacity, but it also promotes CKD progression. Indoxyl sulfate, another uremic toxin derived from amino acid metabolism, accumulates as CKD progresses and induces tubulointerstitial fibrosis and glomerular sclerosis. Specific types of amino acids (d-serine) or fatty acids (palmitate) are reported to be closely associated with CKD progression...
April 4, 2017: Nutrients
https://www.readbyqxmd.com/read/28372330/the-gut-microbiota-and-alzheimer-s-disease
#15
Chunmei Jiang, Guangning Li, Pengru Huang, Zhou Liu, Bin Zhao
The gut microbiota comprises a complex community of microorganism species that resides in our gastrointestinal ecosystem and whose alterations influence not only various gut disorders but also central nervous system disorders such as Alzheimer's disease (AD). AD, the most common form of dementia, is a neurodegenerative disorder associated with impaired cognition and cerebral accumulation of amyloid-β peptides (Aβ). Most notably, the microbiota-gut-brain axis is a bidirectional communication system that is not fully understood, but includes neural, immune, endocrine, and metabolic pathways...
March 29, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28371001/lactobacillus-paracasei-metabolism-of-rice-bran-reveals-metabolome-associated-with-salmonella-typhimurium-growth-reduction
#16
Nora Jean Nealon, Colette R Worcester, Elizabeth P Ryan
AIMS: This study aimed to determine the effect of a cell-free supernatant of Lactobacillus paracasei ATCC27092 with and without rice bran extract (RBE) on Salmonella Typhimurium 14028s growth, and to identify a metabolite profile with antimicrobial functions. METHODS AND RESULTS: Supernatant was collected from overnight cultures of L. paracasei incubated in the presence (LP+RBE) or absence (LP) of RBE and applied to S. Typhimurium. LP+RBE reduced 13.1% more S. Typhimurium growth than LP after 16 h (P<0...
March 29, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28368910/iron-supplements-modulate-colon-microbiota-composition-and-potentiate-the-protective-effects-of-probiotics-in-dextran-sodium-sulfate-induced-colitis
#17
Marco Constante, Gabriela Fragoso, Joseph Lupien-Meilleur, Annie Calvé, Manuela M Santos
BACKGROUND: Iron is an important nutrient for both the host and colonizing bacteria. Oral iron supplementation may impact the composition of the microbiota and can be particularly damaging to patients suffering from inflammatory bowel disease (IBD). However, patients with IBD may require iron supplementation to treat their anemia. METHODS: We fed mice with diets supplemented with ferrous sulfate at different doses (5, 50, and 500 mg of iron/kg chow) and with different iron formulations (ferrous sulfate, ferrous bisglycinate and ferric ethylenediaminetetraacetic acid [FEDTA]), and analyzed the effects on the composition of the gut microbiota by 16S ribosomal RNA gene sequencing...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28356129/the-effects-of-probiotic-and-synbiotic-supplementation-on-metabolic-syndrome-indices-in-adults-at-risk-of-type-2-diabetes-study-protocol-for-a-randomized-controlled-trial
#18
Nazila Kassaian, Ashraf Aminorroaya, Awat Feizi, Parvaneh Jafari, Masoud Amini
BACKGROUND: The incidence of type 2 diabetes, cardiovascular diseases, and obesity has been rising dramatically; however, their pathogenesis is particularly intriguing. Recently, dysbiosis of the intestinal microbiota has emerged as a new candidate that may be linked to metabolic diseases. We hypothesize that selective modulation of the intestinal microbiota by probiotic or synbiotic supplementation may improve metabolic dysfunction and prevent diabetes in prediabetics. In this study, a synthesis and study of synbiotics will be carried out for the first time in Iran...
March 29, 2017: Trials
https://www.readbyqxmd.com/read/28349378/gastrointestinal-tract-a-promising-target-for-the-management-of-hypertension
#19
REVIEW
Shiqiang Xiong, Qiang Li, Daoyan Liu, Zhiming Zhu
The pathogenesis of hypertension remains elusive. Current treatments on hypertension have only achieved modest reductions. Facilitating theoretical research and looking for new therapeutic strategy are urgently needed. Besides food digestion and nutrients absorption, the gastrointestinal tract (GI) has been shown to influence the status of the central nervous system, immune system, metabolism, and cardiovascular homeostasis. Emerging findings demonstrate that endogenous factors derived from GI including gut hormones, autonomic nerve, and gut microbiota play important roles in the regulation of vascular function and/or blood pressure...
April 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28348560/specific-strains-of-lactic-acid-bacteria-differentially-modulate-the-profile-of-adipokines-in-vitro
#20
Emanuel Fabersani, María Claudia Abeijon-Mukdsi, Romina Ross, Roxana Medina, Silvia González, Paola Gauffin-Cano
Obesity induces local/systemic inflammation accompanied by increases in macrophage infiltration into adipose tissue and production of inflammatory cytokines, chemokines, and hormones. Previous studies have shown that probiotics could improve the intestinal dysbiosis induced by metabolic diseases such as obesity, diabetes, and metabolic syndrome. Microorganisms could (directly or indirectly) affect adipokine levels due to their capacity to induce translocation of several intestinal microbial antigens into systemic circulation, which could lead to metabolic endotoxemia or produce immunomodulation in different organs...
2017: Frontiers in Immunology
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