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https://www.readbyqxmd.com/read/28636668/microbiota-in-anorexia-nervosa-the-triangle-between-bacterial-species-metabolites-and-psychological-tests
#1
Francesca Borgo, Alessandra Riva, Alberto Benetti, Maria Cristina Casiraghi, Sara Bertelli, Stefania Garbossa, Simona Anselmetti, Silvio Scarone, Antonio E Pontiroli, Giulia Morace, Elisa Borghi
Anorexia nervosa (AN) is a psychiatric disease with devastating physical consequences, with a pathophysiological mechanism still to be elucidated. Metagenomic studies on anorexia nervosa have revealed profound gut microbiome perturbations as a possible environmental factor involved in the disease. In this study we performed a comprehensive analysis integrating data on gut microbiota with clinical, anthropometric and psychological traits to gain new insight in the pathophysiology of AN. Fifteen AN women were compared with fifteen age-, sex- and ethnicity-matched healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28632732/fructo-oligosaccharides-and-intestinal-barrier-function-in-a-methionine-choline-deficient-mouse-model-of-nonalcoholic-steatohepatitis
#2
Kotaro Matsumoto, Mayuko Ichimura, Koichi Tsuneyama, Yuki Moritoki, Hiromichi Tsunashima, Katsuhisa Omagari, Masumi Hara, Ichiro Yasuda, Hiroshi Miyakawa, Kentaro Kikuchi
Impairments in intestinal barrier function, epithelial mucins, and tight junction proteins have been reported to be associated with nonalcoholic steatohepatitis. Prebiotic fructo-oligosaccharides restore balance in the gastrointestinal microbiome. This study was conducted to determine the effects of dietary fructo-oligosaccharides on intestinal barrier function and steatohepatitis in methionine-choline-deficient mice. Three groups of 12-week-old male C57BL/6J mice were studied for 3 weeks; specifically, mice were fed a methionine-choline-deficient diet, a methionine-choline-deficient diet plus 5% fructo-oligosaccharides in water, or a normal control diet...
2017: PloS One
https://www.readbyqxmd.com/read/28630614/a-plant-based-diet-for-the-prevention-and-treatment-of-type-2-diabetes
#3
REVIEW
Michelle McMacken, Sapana Shah
The prevalence of type 2 diabetes is rising worldwide, especially in older adults. Diet and lifestyle, particularly plant-based diets, are effective tools for type 2 diabetes prevention and management. Plant-based diets are eating patterns that emphasize legumes, whole grains, vegetables, fruits, nuts, and seeds and discourage most or all animal products. Cohort studies strongly support the role of plant-based diets, and food and nutrient components of plant-based diets, in reducing the risk of type 2 diabetes...
May 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28628112/gut-microbiome-and-serum-metabolome-alterations-in-obesity-and-after-weight-loss-intervention
#4
Ruixin Liu, Jie Hong, Xiaoqiang Xu, Qiang Feng, Dongya Zhang, Yanyun Gu, Juan Shi, Shaoqian Zhao, Wen Liu, Xiaokai Wang, Huihua Xia, Zhipeng Liu, Bin Cui, Peiwen Liang, Liuqing Xi, Jiabin Jin, Xiayang Ying, Xiaolin Wang, Xinjie Zhao, Wanyu Li, Huijue Jia, Zhou Lan, Fengyu Li, Rui Wang, Yingkai Sun, Minglan Yang, Yuxin Shen, Zhuye Jie, Junhua Li, Xiaomin Chen, Huanzi Zhong, Hailiang Xie, Yifei Zhang, Weiqiong Gu, Xiaxing Deng, Baiyong Shen, Xun Xu, Huanming Yang, Guowang Xu, Yufang Bi, Shenghan Lai, Jian Wang, Lu Qi, Lise Madsen, Jiqiu Wang, Guang Ning, Karsten Kristiansen, Weiqing Wang
Emerging evidence has linked the gut microbiome to human obesity. We performed a metagenome-wide association study and serum metabolomics profiling in a cohort of lean and obese, young, Chinese individuals. We identified obesity-associated gut microbial species linked to changes in circulating metabolites. The abundance of Bacteroides thetaiotaomicron, a glutamate-fermenting commensal, was markedly decreased in obese individuals and was inversely correlated with serum glutamate concentration. Consistently, gavage with B...
June 19, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28620315/you-are-what-you-eat-a-genomic-analysis-of-the-gut-microbiome-of-captive-and-wild-octopus-vulgaris-paralarvae-and-their-zooplankton-prey
#5
Álvaro Roura, Stephen R Doyle, Manuel Nande, Jan M Strugnell
The common octopus (Octopus vulgaris) is an attractive species for aquaculture, however, several challenges inhibit sustainable commercial production. Little is known about the early paralarval stages in the wild, including diet and intestinal microbiota, which likely play a significant role in development and vitality of this important life stage. High throughput sequencing was used to characterize the gastrointestinal microbiome of wild O. vulgaris paralarvae collected from two different upwelling regions off the coast of North West Spain (n = 41) and Morocco (n = 35)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28618237/effect-of-sweetened-dried-cranberry-consumption-on-urinary-proteome-and-fecal-microbiome-in-healthy-human-subjects
#6
Nell Bekiares, Christian G Krueger, Jennifer J Meudt, Dhanansayan Shanmuganayagam, Jess D Reed
The relationship among diet, human health, and disease is an area of growing interest in biomarker research. Previous studies suggest that the consumption of cranberries (Vaccinium macrocarpon) could beneficially influence urinary and digestive health. The present study sought to determine if daily consumption of sweetened dried cranberries (SDC) changes the urinary proteome and fecal microbiome, as determined in a prospective sample of 10 healthy individuals. Baseline urine and fecal samples were collected from the subjects in the fasted (8-12 h) state...
June 15, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28615382/factors-influencing-the-gut-microbiota-inflammation-and-type-2-diabetes
#7
REVIEW
Li Wen, Andrew Duffy
The gut microbiota is a complex community of bacteria residing in the intestine. Animal models have demonstrated that several factors contribute to and can significantly alter the composition of the gut microbiota, including genetics; the mode of delivery at birth; the method of infant feeding; the use of medications, especially antibiotics; and the diet. There may exist a gut microbiota signature that promotes intestinal inflammation and subsequent systemic low-grade inflammation, which in turn promotes the development of type 2 diabetes...
June 14, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28614379/microbiome-restoration-diet-improves-digestion-cognition-and-physical-and-emotional-wellbeing
#8
Kate Lawrence, Jeannette Hyde
Manipulating gut bacteria in the microbiome, through the use of probiotics and prebiotics, has been found to have an influence on both physical and emotional wellbeing. This study uses a dietary manipulation 'The Gut Makeover' designed to elicit positive changes to the gut bacteria within the microbiome. 21 healthy participants undertook 'The Gut Makeover' for a four week period. Weight and various aspects of health were assessed pre and post intervention using the Functional Medicine Medical Symptoms Questionnaire (MSQ)...
2017: PloS One
https://www.readbyqxmd.com/read/28610958/sulfate-nitrate-and-blood-pressure-an-epic-interaction-between-sulfur-and-nitrogen
#9
Gunter G Kuhnle, Robert Luben, Kay-Tee Khaw, Martin Feelisch
Nitrate (NO3(-))-rich foods such as green leafy vegetables are not only part of a healthy diet, but increasingly marketed for primary prevention of cardiovascular disease (CVD) and used as ergogenic aids by competitive athletes. While there is abundant evidence for mild hypotensive effects of nitrate on acute application there is limited data on chronic intake in humans, and results from animal studies suggest no long-term benefit. This is important as nitrate can also promote the formation of nitrosamines...
June 10, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28604704/thermoneutral-housing-exacerbates-nonalcoholic-fatty-liver-disease-in-mice-and-allows-for-sex-independent-disease-modeling
#10
Daniel A Giles, Maria E Moreno-Fernandez, Traci E Stankiewicz, Simon Graspeuntner, Monica Cappelletti, David Wu, Rajib Mukherjee, Calvin C Chan, Matthew J Lawson, Jared Klarquist, Annika Sünderhauf, Samir Softic, C Ronald Kahn, Kerstin Stemmer, Yoichiro Iwakura, Bruce J Aronow, Rebekah Karns, Kris A Steinbrecher, Christopher L Karp, Rachel Sheridan, Shiva K Shanmukhappa, Damien Reynaud, David B Haslam, Christian Sina, Jan Rupp, Simon P Hogan, Senad Divanovic
Nonalcoholic fatty liver disease (NAFLD), a common prelude to cirrhosis and hepatocellular carcinoma, is the most common chronic liver disease worldwide. Defining the molecular mechanisms underlying the pathogenesis of NAFLD has been hampered by a lack of animal models that closely recapitulate the severe end of the disease spectrum in humans, including bridging hepatic fibrosis. Here we demonstrate that a novel experimental model employing thermoneutral housing, as opposed to standard housing, resulted in lower stress-driven production of corticosterone, augmented mouse proinflammatory immune responses and markedly exacerbated high-fat diet (HFD)-induced NAFLD pathogenesis...
June 12, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28604703/cold-induced-conversion-of-cholesterol-to-bile-acids-in-mice-shapes-the-gut-microbiome-and-promotes-adaptive-thermogenesis
#11
Anna Worthmann, Clara John, Malte C Rühlemann, Miriam Baguhl, Femke-Anouska Heinsen, Nicola Schaltenberg, Markus Heine, Christian Schlein, Ioannis Evangelakos, Chieko Mineo, Markus Fischer, Maura Dandri, Claus Kremoser, Ludger Scheja, Andre Franke, Philip W Shaul, Joerg Heeren
Adaptive thermogenesis is an energy-demanding process that is mediated by cold-activated beige and brown adipocytes, and it entails increased uptake of carbohydrates, as well as lipoprotein-derived triglycerides and cholesterol, into these thermogenic cells. Here we report that cold exposure in mice triggers a metabolic program that orchestrates lipoprotein processing in brown adipose tissue (BAT) and hepatic conversion of cholesterol to bile acids via the alternative synthesis pathway. This process is dependent on hepatic induction of cytochrome P450, family 7, subfamily b, polypeptide 1 (CYP7B1) and results in increased plasma levels, as well as fecal excretion, of bile acids that is accompanied by distinct changes in gut microbiota and increased heat production...
June 12, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28604259/reduced-susceptibility-to-antiseptics-is-conferred-by-heterologous-housekeeping-genes
#12
Supathep Tansirichaiya, Liam J Reynolds, Gianmarco Cristarella, Li Chin Wong, Kimie Rosendahl, Adam P Roberts
Antimicrobial resistance is common in the microbial inhabitants of the human oral cavity. Antimicrobials are commonly encountered by oral microbes as they are present in our diet, both naturally and anthropogenically, and also used in oral healthcare products and amalgam fillings. We aimed to determine the presence of genes in the oral microbiome conferring reduced susceptibility to common antimicrobials. From an Escherichia coli library, 12,277 clones were screened and ten clones with reduced susceptibility to triclosan were identified...
June 12, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28604101/post-dieting-weight-gain-the-role-of-persistent-microbiome-changes
#13
Christoph A Thaiss, Hagit Shapiro, Eran Elinav
No abstract text is available yet for this article.
June 12, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28602659/long-term-multi-species-lactobacillus-and-bifidobacterium-dietary-supplement-enhances-memory-and-changes-regional-brain-metabolites-in-middle-aged-rats
#14
Caroline O'Hagan, Jia V Li, Julian R Marchesi, Sue Plummer, Iveta Garaiova, Mark A Good
Ageing is associated with changes in the gut microbiome that may contribute to age-related changes in cognition. Previous work has shown that dietary supplements with multi-species live microorganisms can influence brain function, including induction of hippocampal synaptic plasticity and production of brain derived neurotrophic factor, in both young and aged rodents. However, the effect of such dietary supplements on memory processes has been less well documented, particularly in the context of aging. The main aim of the present study was to examine the impact of a long-term dietary supplement with a multi-species live Lactobacillus and Bifidobacteria mixture (Lactobacillus acidophilus CUL60, L...
June 5, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28600319/microbiome-and-nafld-potential-influence-of-aerobic-fitness-and-lifestyle-modification
#15
Matthew R Panasevich, Willem T Peppler, Daniel B Oerther, David C Wright, R Scott Rector
Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease with prevalence rates that are on the rise in the US and worldwide. NAFLD encompasses a spectrum of liver pathologies including simple steatosis to nonalcoholic steatohepatitis (NASH) with inflammation and fibrosis. The gut microbiome has emerged as a potential therapeutic target in combating metabolic diseases including obesity, type 2 diabetes, and NAFLD/NASH. Diet-induced obesity/Western style diet feeding causes severe microbial dysbiosis initiating a microbiome signature that promotes metabolite production that directly impacts hepatic metabolism...
June 9, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28599622/alteration-of-gut-microbiota-in-association-with-cholesterol-gallstone-formation-in-mice
#16
Qihan Wang, Long Jiao, Chuanqi He, Haidong Sun, Qu Cai, Tianquan Han, Hai Hu
BACKGROUND: The gut microbiome exerts extensive roles in metabolism of nutrients, pharmaceuticals, organic chemicals. Little has been known for the role of gut microbiota in regulating cholesterol and bile acids in association with gallstone formation. This study investigated the changes in the composition of gut microbiota in mice fed with lithogenic diet (LD). METHODS: Adult male C57BL/6 J mice were fed with either lithogenic diet (1.25% cholesterol and 0.5% cholic acid) or chow diet as control for 56 days...
June 9, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28595639/diet-shifts-provoke-complex-and-variable-changes-in-the-metabolic-networks-of-the-ruminal-microbiome
#17
Sara M Wolff, Melinda J Ellison, Yue Hao, Rebecca R Cockrum, Kathy J Austin, Michael Baraboo, Katherine Burch, Hyuk Jin Lee, Taylor Maurer, Rocky Patil, Andrea Ravelo, Tasia M Taxis, Huan Truong, William R Lamberson, Kristi M Cammack, Gavin C Conant
BACKGROUND: Grazing mammals rely on their ruminal microbial symbionts to convert plant structural biomass into metabolites they can assimilate. To explore how this complex metabolic system adapts to the host animal's diet, we inferred a microbiome-level metabolic network from shotgun metagenomic data. RESULTS: Using comparative genomics, we then linked this microbial network to that of the host animal using a set of interface metabolites likely to be transferred to the host...
June 8, 2017: Microbiome
https://www.readbyqxmd.com/read/28594855/the-artificial-sweetener-acesulfame-potassium-affects-the-gut-microbiome-and-body-weight-gain-in-cd-1-mice
#18
Xiaoming Bian, Liang Chi, Bei Gao, Pengcheng Tu, Hongyu Ru, Kun Lu
Artificial sweeteners have been widely used in the modern diet, and their observed effects on human health have been inconsistent, with both beneficial and adverse outcomes reported. Obesity and type 2 diabetes have dramatically increased in the U.S. and other countries over the last two decades. Numerous studies have indicated an important role of the gut microbiome in body weight control and glucose metabolism and regulation. Interestingly, the artificial sweetener saccharin could alter gut microbiota and induce glucose intolerance, raising questions about the contribution of artificial sweeteners to the global epidemic of obesity and diabetes...
2017: PloS One
https://www.readbyqxmd.com/read/28594642/ce-health-and-the-human-microbiome-a-primer-for-nurses
#19
Katie Gresia McElroy, Seon-Yoon Chung, Mary Regan
What findings about the GI and vaginal microbiota mean for patient care. ABSTRACT: The profound impact of the human microbiome on health makes it imperative that nurses understand the basic structures and functions of the various microbial communities. In studying the human microbiome, advances in DNA and RNA sequencing technology offer benefits over traditional culturebased methods. Such technology has permitted more thorough investigations of microbial communities, particularly those of the gastrointestinal (GI) and female reproductive tracts...
June 7, 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28592442/the-low-fodmap-diet-recent-advances-in-understanding-its-mechanisms-and-efficacy-in-ibs
#20
REVIEW
Heidi M Staudacher, Kevin Whelan
There is an intensifying interest in the interaction between diet and the functional GI symptoms experienced in IBS. Recent studies have used MRI to demonstrate that short-chain fermentable carbohydrates increase small intestinal water volume and colonic gas production that, in those with visceral hypersensitivity, induces functional GI symptoms. Dietary restriction of short-chain fermentable carbohydrates (the low fermentable oligosaccharide, disaccharide, monosaccharide and polyol (FODMAP) diet) is now increasingly used in the clinical setting...
June 7, 2017: Gut
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