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https://www.readbyqxmd.com/read/28328981/dysbiosis-and-compositional-alterations-with-aging-in-the-gut-microbiota-of-patients-with-heart-failure
#1
Takehiro Kamo, Hiroshi Akazawa, Wataru Suda, Akiko Saga-Kamo, Yu Shimizu, Hiroki Yagi, Qing Liu, Seitaro Nomura, Atsuhiko T Naito, Norifumi Takeda, Mutsuo Harada, Haruhiro Toko, Hidetoshi Kumagai, Yuichi Ikeda, Eiki Takimoto, Jun-Ichi Suzuki, Kenya Honda, Hidetoshi Morita, Masahira Hattori, Issei Komuro
Emerging evidence has suggested a potential impact of gut microbiota on the pathophysiology of heart failure (HF). However, it is still unknown whether HF is associated with dysbiosis in gut microbiota. We investigated the composition of gut microbiota in patients with HF to elucidate whether gut microbial dysbiosis is associated with HF. We performed 16S ribosomal RNA gene sequencing of fecal samples obtained from 12 HF patients and 12 age-matched healthy control (HC) subjects, and analyzed the differences in gut microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28320465/reduced-microbial-diversity-in-adult-survivors-of-childhood-acute-lymphoblastic-leukemia-and-microbial-associations-with-increased-immune-activation
#2
Ling Ling Chua, Reena Rajasuriar, Mohamad Shafiq Azanan, Noor Kamila Abdullah, Mei San Tang, Soo Ching Lee, Yin Ling Woo, Yvonne Ai Lian Lim, Hany Ariffin, P'ng Loke
BACKGROUND: Adult survivors of childhood cancers such as acute lymphoblastic leukemia (ALL) have health problems that persist or develop years after cessation of therapy. These late effects include chronic inflammation-related comorbidities such as obesity and type 2 diabetes, but the underlying cause is poorly understood. RESULTS: We compared the anal microbiota composition of adult survivors of childhood ALL (N = 73) with healthy control subjects (N = 61)...
March 20, 2017: Microbiome
https://www.readbyqxmd.com/read/28286571/we-are-not-alone-a-case-for-the-human-microbiome-in-extra-intestinal-diseases
#3
EDITORIAL
S Shivaji
BACKGROUND: "Dysbiosis" in the gut microbiome has been implicated in auto-immune diseases, in inflammatory diseases, in some cancers and mental disorders. The challenge is to unravel the cellular and molecular basis of dysbiosis so as to understand the disease manifestation. MAIN BODY: Next generation sequencing and genome enabled technologies have led to the establishment of the composition of gut microbiomes and established that "dysbiosis" is the cause of several diseases...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28281639/influence-of-dairy-by-product-waste-milk-on-the-microbiomes-of-different-gastrointestinal-tract-components-in-pre-weaned-dairy-calves
#4
Y F Deng, Y J Wang, Y Zou, A Azarfar, X L Wei, S K Ji, J Zhang, Z H Wu, S X Wang, S Z Dong, Y Xu, D F Shao, J X Xiao, K L Yang, Z J Cao, S L Li
The community structure of colonised bacteria in the gastrointestinal tracts (GITs) of pre-weaned calves is affected by extrinsic factors, such as the genetics and diet of the calves; however, the dietary impact is not fully understood and warrants further research. Our study revealed that a total of 6, 5, 2 and 10 bacterial genera showed biologically significant differences in the GITs of pre-weaned calves fed four waste-milk diets: acidified waste milk, pasteurised waste milk, untreated bulk milk, and untreated waste milk, respectively...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28280715/enterotype-may-drive-the-dietary-associated-cardiometabolic-risk-factors
#5
Ana C F de Moraes, Gabriel R Fernandes, Isis T da Silva, Bianca Almeida-Pititto, Everton P Gomes, Alexandre da Costa Pereira, Sandra R G Ferreira
Analyses of typical bacterial clusters in humans named enterotypes may facilitate understanding the host differences in the cardiometabolic profile. It stills unknown whether the three previously described enterotypes were present in populations living below the equator. We examined how the identification of enterotypes could be useful to explain the dietary associations with cardiometabolic risk factors in Brazilian subjects. In this cross-sectional study, a convenience sample of 268 adults (54.2% women) reported their dietary habits and had clinical and biological samples collected...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28265505/key-bacterial-families-clostridiaceae-erysipelotrichaceae-and-bacteroidaceae-are-related-to-the-digestion-of-protein-and-energy-in-dogs
#6
Emma N Bermingham, Paul Maclean, David G Thomas, Nicholas J Cave, Wayne Young
BACKGROUND: Much of the recent research in companion animal nutrition has focussed on understanding the role of diet on faecal microbiota composition. To date, diet-induced changes in faecal microbiota observed in humans and rodents have been extrapolated to pets in spite of their very different dietary and metabolic requirements. This lack of direct evidence means that the mechanisms by which microbiota influences health in dogs are poorly understood. We hypothesised that changes in faecal microbiota correlate with physiological parameters including apparent macronutrient digestibility...
2017: PeerJ
https://www.readbyqxmd.com/read/28262770/fecal-bacterial-communities-in-treated-hiv-infected-individuals-on-two-antiretroviral-regimens
#7
Sandra Pinto-Cardoso, Catherine Lozupone, Olivia Briceño, Selma Alva-Hernández, Norma Téllez, Aguilar Adriana, Akio Murakami-Ogasawara, Gustavo Reyes-Terán
Intestinal microbiome changes that occur in HIV positive individuals on different antiretroviral therapy (ART) regimens are important to understand, as they are potentially linked with chronic inflammation and microbiome-linked comorbidities that occur at increased incidence in this population. We conducted a cross-sectional study comparing the fecal microbiomes of HIV-uninfected (HIV SN) to HIV-infected individuals on long-term ART (HIV+ LTART) from Mexico using 16S ribosomal RNA (16sRNA) targeted sequencing...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28255158/altered-intestinal-microbiota-in-patients-with-chronic-pancreatitis-implications-in-diabetes-and-metabolic-abnormalities
#8
Sai Manasa Jandhyala, A Madhulika, G Deepika, G Venkat Rao, D Nageshwar Reddy, Chivukula Subramanyam, Mitnala Sasikala, Rupjyoti Talukdar
Intestinal dysbiosis and its functional implications in chronic pancreatitis (CP) have not been elaborately studied. We evaluated the taxonomic and functional alterations in intestinal microbiota in 30 well-characterised patients with CP (16 without, 14 with diabetes) and 10 healthy controls. The patients with CP and diabetes had significantly longer disease duration and greater degree of malnutrition. There was increase in plasma endotoxin concentrations from controls to CP non-diabetics to CP diabetics. We observed significant differences in richness and alpha diversity between the groups...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28251782/one-year-calorie-restriction-impacts-gut-microbial-composition-but-not-its-metabolic-performance-in-obese-adolescents
#9
Alicia Ruiz, Tomás Cerdó, Ruy Jáuregui, Dietmar H Pieper, Ascensión Marcos, Alfonso Clemente, Federico García, Abelardo Margolles, Manuel Ferrer, Cristina Campoy, Antonio Suárez
Recent evidence has disclosed a connection between gut microbial glycosidase activity and adiposity in obese. Here, we measured microbial α-glucosidase and β-galactosidase activities and sorted fluorescently labeled β-galactosidase containing (βGAL) microorganisms in faecal samples of eight lean and thirteen obese adolescents that followed a controlled calorie restriction program during one year. β-galactosidase is a highly distributed functional trait, mainly expressed by members of Blautia, Bacteroides, Alcaligenes, Acinetobacter and Propionibacterium...
March 2, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28249045/pili-like-proteins-of-akkermansia-muciniphila-modulate-host-immune-responses-and-gut-barrier-function
#10
Noora Ottman, Justus Reunanen, Marjolein Meijerink, Taija E Pietilä, Veera Kainulainen, Judith Klievink, Laura Huuskonen, Steven Aalvink, Mikael Skurnik, Sjef Boeren, Reetta Satokari, Annick Mercenier, Airi Palva, Hauke Smidt, Willem M de Vos, Clara Belzer
Gut barrier function is key in maintaining a balanced response between the host and its microbiome. The microbiota can modulate changes in gut barrier as well as metabolic and inflammatory responses. This highly complex system involves numerous microbiota-derived factors. The gut symbiont Akkermansia muciniphila is positively correlated with a lean phenotype, reduced body weight gain, amelioration of metabolic responses and restoration of gut barrier function by modulation of mucus layer thickness. However, the molecular mechanisms behind its metabolic and immunological regulatory properties are unexplored...
2017: PloS One
https://www.readbyqxmd.com/read/28244658/nutritional-microbiological-and-psychosocial-implications-of-the-low-fodmap-diet
#11
REVIEW
Heidi Maria Staudacher
Dietary restriction of certain fermentable carbohydrates (low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) diet) is effective for managing symptoms of irritable bowel syndrome (IBS). However, there are potential consequences of this diet that relate to its impact on nutritional, microbiological, and health-related quality of life outcomes. Evidence suggests that the low FODMAP diet leads to some alterations in nutrient intake. For example, carbohydrate intake is reduced, and there is a decrease in the proportion of patients meeting the recommended intake for calcium...
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28239378/enterococcus-durans-ep1-a-promising-anti-inflammatory-probiotic-able-to-stimulate-siga-and-to-increase-faecalibacterium-prausnitzii-abundance
#12
Paula Carasi, Silvia María Racedo, Claudine Jacquot, Anne Marie Elie, María de Los Ángeles Serradell, María C Urdaci
Enterococcus species, principally Enterococcus faecium are used as probiotics since a long time with preference in animal applications but safety considerations were updated and also new uses as probiotics can be envisaged. Fifteen Enterococcus strains isolated from different foods were identified and analyzed for virulence factors and antibiotic resistance. Three Enterococcus durans strains were selected to study their immunomodulatory properties on PBMC and Caco2 cells. Two strains presented a profile toward a mild inflammatory Th1 response considering TNF-α/IL-10 and IL-1β/IL-10 cytokines ratios...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28213609/gut-microbial-profile-is-altered-in-primary-biliary-cholangitis-and-partially-restored-after-udca-therapy
#13
Ruqi Tang, Yiran Wei, Yanmei Li, Weihua Chen, Haoyan Chen, Qixia Wang, Fan Yang, Qi Miao, Xiao Xiao, Haiyan Zhang, Min Lian, Xiang Jiang, Jun Zhang, Qin Cao, Zhuping Fan, Maoying Wu, Dekai Qiu, Jing-Yuan Fang, Aftab Ansari, M Eric Gershwin, Xiong Ma
OBJECTIVE: A close relationship between gut microbiota and some chronic liver disorders has recently been described. Herein, we systematically performed a comparative analysis of the gut microbiome in primary biliary cholangitis (PBC) and healthy controls. DESIGN: We first conducted a cross-sectional study of 60 ursodeoxycholic acid (UDCA) treatment-naïve patients with PBC and 80 matched healthy controls. Second, an independent cohort composed of 19 treatment-naïve patients and 34 controls was used to validate the results...
February 17, 2017: Gut
https://www.readbyqxmd.com/read/28203226/microbial-anti-inflammatory-molecule-mam-from-faecalibacterium-prausnitzii-shows-a-protective-effect-on-dnbs-and-dss-induced-colitis-model-in-mice-through-inhibition-of-nf-%C3%AE%C2%BAb-pathway
#14
Natalia M Breyner, Cristophe Michon, Cassiana S de Sousa, Priscilla B Vilas Boas, Florian Chain, Vasco A Azevedo, Philippe Langella, Jean M Chatel
Faecalibacterium prausnitzii and its supernatant showed protective effects in different chemically-induced colitis models in mice. Recently, we described 7 peptides found in the F. prausnitzii supernatant, all belonging to a protein called Microbial Anti-inflammatory Molecule (MAM). These peptides were able to inhibit NF-κB pathway in vitro and showed anti-inflammatory properties in vivo in a DiNitroBenzene Sulfate (DNBS)-induced colitis model. In this current proof we tested MAM effect on NF-κB pathway in vivo, using a transgenic model of mice producing luciferase under the control of NF-κB promoter...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28191503/differences-in-gut-metabolites-and-microbial-composition-and-functions-between-egyptian-and-u-s-children-are-consistent-with-their-diets
#15
V Shankar, M Gouda, J Moncivaiz, A Gordon, N V Reo, L Hussein, O Paliy
Previous studies indicated that populations consuming a Mediterranean diet rich in fiber, vegetables, and fruits have a significantly lower risk of cardiovascular and metabolic diseases than populations of industrialized societies consuming diets enriched in processed carbohydrates, animal proteins, and fats. To explore the potential contributions of gut microbiota to the observed diet-related metabolic effects, we conducted an integrative analysis of distal gut microbiota composition and functions and intestinal metabolites in Egyptian and U...
January 2017: MSystems
https://www.readbyqxmd.com/read/28187199/differences-in-gut-microbiota-profile-between-women-with-active-lifestyle-and-sedentary-women
#16
Carlo Bressa, María Bailén-Andrino, Jennifer Pérez-Santiago, Rocío González-Soltero, Margarita Pérez, Maria Gregoria Montalvo-Lominchar, Jose Luis Maté-Muñoz, Raúl Domínguez, Diego Moreno, Mar Larrosa
Physical exercise is a tool to prevent and treat some of the chronic diseases affecting the world's population. A mechanism through which exercise could exert beneficial effects in the body is by provoking alterations to the gut microbiota, an environmental factor that in recent years has been associated with numerous chronic diseases. Here we show that physical exercise performed by women to at least the degree recommended by the World Health Organization can modify the composition of gut microbiota. Using high-throughput sequencing of the 16s rRNA gene, eleven genera were found to be significantly different between active and sedentary women...
2017: PloS One
https://www.readbyqxmd.com/read/28179092/altered-molecular-signature-of-intestinal-microbiota-in-irritable-bowel-syndrome-patients-compared-with-healthy-controls-a-systematic-review-and-meta-analysis
#17
REVIEW
Hai-Ning Liu, Hao Wu, Yu-Zhuo Chen, Yan-Jie Chen, Xi-Zhong Shen, Tao-Tao Liu
BACKGROUND: Many studies have reported significant changes in intestinal microbiota in irritable bowel syndrome (IBS) patients based on quantitative real-time PCR analysis. AIMS: We aimed to review the alterations in intestinal microbiota. METHODS: An online search up to June 9, 2016, was conducted. This systematic review and meta-analysis included differential expression of intestinal microbiota in patients with IBS versus healthy controls (HCs) and subgroup analysis...
January 21, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28175005/p143-from-biopsies-to-fecal-samples-challenging-faecalibacterium-prausnitzii-and-related-phylogroups-as-potential-biomarkers-for-ibd
#18
J Amoedo, M Serra-Pagès, M Serrano, A Bahí, M Malagόn, P Gilabert, J Guardiola, D Busquets, X Aldeguer, J Garcia-Gil
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28167665/microbial-strain-level-population-structure-and-genetic-diversity-from-metagenomes
#19
Duy Tin Truong, Adrian Tett, Edoardo Pasolli, Curtis Huttenhower, Nicola Segata
Among the human health conditions linked to microbial communities, phenotypes are often associated with only a subset of strains within causal microbial groups. While it has been critical for decades in microbial physiology to characterize individual strains, this has been challenging when using culture-independent high-throughput metagenomics. We introduce StrainPhlAn, a novel metagenomic strain identification approach, and apply it to characterize the genetic structure of thousands of strains from >125 species in >1,500 gut metagenomes drawn from populations spanning North/South American, European, Asian, and African countries...
February 6, 2017: Genome Research
https://www.readbyqxmd.com/read/28130771/effects-of-acarbose-on-the-gut-microbiota-of-prediabetic-patients-a-randomized-double-blind-controlled-crossover-trial
#20
Xiuying Zhang, Zhiwei Fang, Chunfang Zhang, Huihua Xia, Zhuye Jie, Xueyao Han, Yingli Chen, Linong Ji
INTRODUCTION: The α-glucosidase inhibitor acarbose is an efficacious medicine for the treatment and prevention of type 2 diabetes mellitus (T2DM). However, the response of gut microbiota to acarbose is important, as the microbiota may have a critical role in the development of metabolic diseases, and acarbose is metabolized exclusively within the gastrointestinal tract. We explored the changes in the proportion and diversity of gut microbiota before and after treatment with acarbose in patients with prediabetes...
January 27, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
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