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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/28923170/prebiotics-in-the-management-of-components-of-the-metabolic-syndrome
#2
REVIEW
Sarah O'Connor, Sarah Chouinard-Castonguay, Claudia Gagnon, Iwona Rudkowska
Components of the metabolic syndrome (MetS), including abdominal obesity, low-grade chronic systemic inflammation, altered glucose metabolism, dyslipidemia and high blood pressure, are major threats to healthy aging in modern societies. The connection between MetS components and gut microflora is now acknowledged and multiple therapeutic strategies have been proposed to change the composition of the gut microbiota in order to promote optimal metabolic health. Prebiotics have the ability to favour growth of beneficial bacteria, especially short-chain fatty-acids (SCFA) producers...
October 2017: Maturitas
https://www.readbyqxmd.com/read/28914372/the-role-of-gut-microbiota-in-the-pathogenesis-of-rheumatic-diseases
#3
Danli Zhong, Chanyuan Wu, Xiaofeng Zeng, Qian Wang
Rheumatic diseases refer to many diseases with a loss of immune self-tolerance, leading to a chronic inflammation, degeneration, or metabolic derangement in multiple organs or tissues. The cause of rheumatic diseases remains to be elucidated, though both environmental and genetic factors are required for the development of rheumatic diseases. Over the past decades, emerging studies suggested that alteration of intestinal microbiota, known as gut dysbiosis, contributed to the occurrence or development of a range of rheumatic diseases, including rheumatoid arthritis, systemic lupus erythematosus, ankylosing spondylitis, systemic sclerosis, and Sjogren's syndrome, through profoundly affecting the balance between pro- and anti-inflammatory immune responses...
September 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28894048/the-role-of-bile-acids-in-the-pathogenesis-of-bowel-diseases
#4
Magdalena Panek-Jeziorna, Agata Mulak
Bile acids not only play a cardinal role in the digestion and absorption of fat and fat-soluble vitamins, but also significantly affect gastrointestinal motor, sensory and secretory functions, intestinal barrier permeability and the regulation of the inflammatory response. The results of recent studies have revealed complex interactions between bile acids and the gut microbiota. In addition, bile acids also play a role of signaling molecules regulating the activity of lipid and glucose metabolic pathways, as well as a role of ligands for transcription factors...
August 24, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28885302/postinfection-irritable-bowel-syndrome-the-links-between-gastroenteritis-inflammation-the-microbiome-and-functional-disease
#5
Ian A Downs, Olga C Aroniadis, Libusha Kelly, Lawrence J Brandt
Postinfection irritable bowel syndrome (PI-IBS) is a diarrheal disease that develops after infectious gastroenteritis (IGE). Profound alterations in the microbiota accompany IGE yet only 10% of IGE patients progress to PI-IBS. This review explores research linking IGE severity, psychological comorbidity, PI-IBS, and the microbiome in various patient populations. Selective pressures caused by inflammation and increased gastrointestinal motility during gastroenteritis can alter intestinal bacterial phyla including Bacteroidetes, Firmicutes, and Proteobacteria...
September 6, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28875188/alterations-to-metabolically-active-bacteria-in-the-mucosa-of-the-small-intestine-predict-anti-obesity-and-anti-diabetic-activities-of-grape-seed-extract-in-mice
#6
Laura E Griffin, Katherine A Witrick, Courtney Klotz, Melanie R Dorenkott, Katheryn M Goodrich, Gabrielle Fundaro, Ryan P McMillan, Matthew W Hulver, Monica A Ponder, Andrew P Neilson
Epidemiological and clinical studies suggest that grapes and grape-derived products may reduce the risk for chronic disease. Grape seed extract specifically has been gaining interest due to its reported ability to prevent weight gain, moderate hyperglycemia, and reduce inflammation. The purpose of this study was to examine the long-term effects of two doses of grape seed extract (10 and 100 mg kg(-1) body wt per d in mice) on markers of metabolic syndrome in the context of a moderately high-fat diet. After 12 weeks, the lower dose of grape seed extract was more effective at inhibiting fat gain and improving glucose tolerance and insulin sensitivity...
September 6, 2017: Food & Function
https://www.readbyqxmd.com/read/28874357/reduced-obesity-diabetes-and-steatosis-upon-cinnamon-and-grape-pomace-are-associated-with-changes-in-gut-microbiota-and-markers-of-gut-barrier
#7
Matthias Van Hul, Lucie Geurts, Hubert Plovier, Céline Druart, Amandine Everard, Marcus Ståhlman, Moez Rhimi, Kleopatra Chira, Pierre-Louis Teissedre, Nathalie M Delzenne, Emmanuelle Maguin, Angèle Guilbot, Amandine Brochot, Philippe Gerard, Fredrik Bäckhed, Patrice D Cani
Increasing evidence suggests that polyphenols have a significant potential in the prevention and treatment of risk factors associated with metabolic syndrome. The objective of this study was to assess the metabolic outcomes of two polyphenol-containing extracts from cinnamon bark (CBE) and grape pomace (GPE) on C57BL/6J mice fed a high-fat diet (HFD) for 8 weeks. Both CBE and GPE were able to decrease fat mass gain and adipose tissue inflammation in mice fed a HFD without reducing food intake. This was associated with reduced liver steatosis and lower plasma non-esterified fatty acids levels...
September 5, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28858426/insights-on-the-impact-of-diet-mediated-microbiota-alterations-on-immunity-and-diseases
#8
Akihito Harusato, Benoit Chassaing
The intestinal tract is inhabited by a large and diverse community of bacteria collectively referred to as the gut microbiota. The intestinal microbiota is composed by 500-1000 distinct species, and alterations in its composition are associated with a variety of diseases including obesity, diabetes, and inflammatory bowel disease (IBD). Importantly, microbiota transplantation from diseased patients or mice (IBD, metabolic syndrome, etc.) to germ-free mice was found to be sufficient to transfer some aspects of disease phenotypes, indicating that altered microbiota is playing a direct role in those particular conditions...
August 31, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28858273/-microbiocenosis-of-subgingival-biofilm-and-intestinal-content-in-chronic-periodontal-disease-in-patients-with-metabolic-syndrome
#9
N B Petrukhina, O A Zorina, E V Shikh, E V Kartysheva
The aim of the study was to assess correlations of subgingival biofilm and intestinal microbiota in patients with chronic periodontal disease (CPD) and metabolic syndrome (MS). The study included 80 patients divided in 2 groups: 40 healthy individuals with no signs of periodontal disease and 40 patients with CPD and MS. Oral and intestinal microbial consortia compositions were revealed using deep sequencing libraries of 16S rDNA. The study showed than the qualitative composition of the intestinal microbiome in patients with CPD differ significantly from the microbiome of controls...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28829397/precision-nutrition-a-review-of-personalized-nutritional-approaches-for-the-prevention-and-management-of-metabolic-syndrome
#10
REVIEW
Juan de Toro-Martín, Benoit J Arsenault, Jean-Pierre Després, Marie-Claude Vohl
The translation of the growing increase of findings emerging from basic nutritional science into meaningful and clinically relevant dietary advices represents nowadays one of the main challenges of clinical nutrition. From nutrigenomics to deep phenotyping, many factors need to be taken into account in designing personalized and unbiased nutritional solutions for individuals or population sub-groups. Likewise, a concerted effort among basic, clinical scientists and health professionals will be needed to establish a comprehensive framework allowing the implementation of these new findings at the population level...
August 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28737484/the-effect-of-fiber-and-prebiotics-on-children-s-gastrointestinal-disorders-and-microbiome
#11
Carrie A M Wegh, Margriet H C Schoterman, Elaine E Vaughan, Clara Belzer, Marc A Benninga
The bacteria received upon birth are the start of colonization of the approximately 10(14) bacteria that are present in the mature human gastrointestinal tract, better known as the microbiota. The gut microbiota is implicated in gastrointestinal health, nutrient metabolism and benefits such as prevention of infection. Dietary fiber, including prebiotics, escape digestion in the small intestine and reach the colon intact, where they are partially or completely fermented by the gut microbiota. Areas covered: The possible interactions between dietary fiber, prebiotics and microbiota are discussed as well as how this relates to functional gastrointestinal disorders...
July 24, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28736228/dbz-is-a-putative-ppar%C3%AE-agonist-that-prevents-high-fat-diet-induced-obesity-insulin-resistance-and-gut-dysbiosis
#12
Pengfei Xu, Fan Hong, Jialin Wang, Jing Wang, Xia Zhao, Sheng Wang, Tingting Xue, Jingwei Xu, Xiaohui Zheng, Yonggong Zhai
BACKGROUND: The nuclear receptor PPARγ is an effective pharmacological target for some types of metabolic syndrome, including obesity, diabetes, nonalcoholic fatty liver disease, and cardiovascular disease. However, the current PPARγ-targeting thiazolidinedione drugs have undesirable side effects. Danshensu Bingpian Zhi (DBZ), also known as tanshinol borneol ester derived from Salvia miltiorrhiza, is a synthetic derivative of natural compounds used in traditional Chinese medicine for its anti-inflammatory activity...
July 20, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28723981/intestinal-microbiota-in-digestive-diseases
#13
Maria do Carmo Friche Passos, Joaquim Prado Moraes-Filho
BACKGROUND: In recent years, especially after the development of sophisticated metagenomic studies, research on the intestinal microbiota has increased, radically transforming our knowledge about the microbiome and its association with health maintenance and disease development in humans. Increasing evidence has shown that a permanent alteration in microbiota composition or function (dysbiosis) can alter immune responses, metabolism, intestinal permeability, and digestive motility, thereby promoting a proinflammatory state...
July 6, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28713266/significance-of-microbiota-in-obesity-and-metabolic-diseases-and-the-modulatory-potential-by-medicinal-plant-and-food-ingredients
#14
REVIEW
Hoda M Eid, Michelle L Wright, N V Anil Kumar, Abdel Qawasmeh, Sherif T S Hassan, Andrei Mocan, Seyed M Nabavi, Luca Rastrelli, Atanas G Atanasov, Pierre S Haddad
Metabolic syndrome is a cluster of three or more metabolic disorders including insulin resistance, obesity, and hyperlipidemia. Obesity has become the epidemic of the twenty-first century with more than 1.6 billion overweight adults. Due to the strong connection between obesity and type 2 diabetes, obesity has received wide attention with subsequent coining of the term "diabesity." Recent studies have identified unique contributions of the immensely diverse gut microbiota in the pathogenesis of obesity and diabetes...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28701081/gut-microbiota-dysbiosis-associated-with-glucose-metabolism-disorders-and-the-metabolic-syndrome-in-older-adults
#15
K Lippert, L Kedenko, L Antonielli, I Kedenko, C Gemeier, M Leitner, A Kautzky-Willer, B Paulweber, E Hackl
Obesity and associated metabolic disorders have become highly prevalent diseases worldwide, and the human gut microbiota, due to its influence on host energy metabolism, has been attributed an important role therein. This pilot study explores host-microbiota relationships in men and women affected by various types of glucose metabolism disorder. Among 20 individuals aged 58 to 71 years with either normal glucose tolerance, prediabetes, or type 2 diabetes mellitus the gut bacterial communities were compared based on barcoded 454 sequencing of 16S rRNA genes amplified from stool samples...
August 24, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28696041/the-contribution-of-microbial-biotechnology-to-sustainable-development-goals-microbiome-therapies
#16
Paul W O'Toole, Max Paoli
Complex communities of microbes live on and in plants, humans and other animals. These communities are collectively referred to as the microbiota or microbiome. Plants and animals evolved to co-exist with these microbes. In mammals, particular kinds of alteration of the microbiome (dysbiosis) are associated with loss of health, most likely due to loss of microbial metabolites, signalling molecules, or regulators of host pathways. Modern life-style diseases such as Inflammatory Bowel Disease (IBD), Irritable Bowel Syndrome (IBS), type 2 diabetes, obesity and metabolic syndrome have been linked to dysbiosis...
July 11, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28690599/gut-dysbiosis-and-adaptive-immune-response-in-diet-induced-obesity-vs-systemic-inflammation
#17
Jana Pindjakova, Claudio Sartini, Oriana Lo Re, Francesca Rappa, Berengere Coupe, Benjamin Lelouvier, Valerio Pazienza, Manlio Vinciguerra
A mutual interplay exists between adaptive immune system and gut microbiota. Altered gut microbial ecosystems are associated with the metabolic syndrome, occurring in most obese individuals. However, it is unknown why 10-25% of obese individuals are metabolically healthy, while normal weight individuals can develop inflammation and atherosclerosis. We modeled these specific metabolic conditions in mice fed with a chow diet, an obesogenic but not inflammatory diet-mimicking healthy obesity, or Paigen diet-mimicking inflammation in the lean subjects...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28659913/lactobacillus-johnsonii-n6-2-modulates-the-host-immune-responses-a-double-blind-randomized-trial-in-healthy-adults
#18
Guillermo E Marcial, Amanda L Ford, Michael J Haller, Salvador A Gezan, Natalie A Harrison, Dan Cai, Julie L Meyer, Daniel J Perry, Mark A Atkinson, Clive H Wasserfall, Timothy Garrett, Claudio F Gonzalez, Todd M Brusko, Wendy J Dahl, Graciela L Lorca
Lactobacillus johnsonii N6.2 mitigates the onset of type 1 diabetes (T1D) in biobreeding diabetes-prone rats, in part, through changes in kynurenine:tryptophan (K:T) ratios. The goal of this pilot study was to determine the safety, tolerance, and general immunological response of L. johnsonii N6.2 in healthy subjects. A double-blind, randomized clinical trial in 42 healthy individuals with no known risk factors for T1D was undertaken to evaluate subject responses to the consumption of L. johnsonii N6.2. Participants received 1 capsule/day containing 10(8) colony-forming units of L...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28652650/role-of-non-steroidal-anti-inflammatory-drugs-on-intestinal-permeability-and-nonalcoholic-fatty-liver-disease
#19
REVIEW
Erika Utzeri, Paolo Usai
The use of non-steroidal anti-inflammatory drugs (NSAIDs) is widespread worldwide thanks to their analgesic, anti-inflammatory and antipyretic effects. However, even more attention is placed upon the recurrence of digestive system complications in the course of their use. Recent data suggests that the complications of the lower gastro-intestinal tract may be as frequent and severe as those of the upper tract. NSAIDs enteropathy is due to enterohepatic recycling of the drugs resulting in a prolonged and repeated exposure of the intestinal mucosa to the compound and its metabolites...
June 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28649593/colonic-microbiota-encroachment-correlates-with-dysglycemia-in-humans
#20
Benoit Chassaing, Shreya M Raja, James D Lewis, Shanthi Srinivasan, Andrew T Gewirtz
BACKGROUND AND AIMS: Mucoid structures that coat the epithelium play an essential role in keeping the intestinal microbiota at a safe distance from host cells. Encroachment of bacteria into the normally almost-sterile inner mucus layer has been observed in inflammatory bowel disease and in mouse models of colitis. Moreover, such microbiota encroachment has also been observed in mouse models of metabolic syndrome, which are associated low-grade intestinal inflammation. Hence, we investigated if microbiota encroachment might correlate with indices of metabolic syndrome in humans...
September 2017: Cellular and Molecular Gastroenterology and Hepatology
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