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https://www.readbyqxmd.com/read/29772522/bariatric-surgery-drives-major-rearrangements-of-the-intestinal-microbiota-including-the-biofilm-composition
#1
Giuseppina Campisciano, Carolina Cason, Silvia Palmisano, Michela Giuricin, Alessia Rizzardi, Lory Saveria Croce, Nicolo De Manzini, Manola Comar
The intestinal microbiota disequilibrium has been associated with obesity, while the role of the gut mucosal biofilms in this pathology is still unknown. We analysed the changes in the intestinal microbiota of obese patients after bariatric surgery with the aim of disclosing the rearrangement of the biofilm configuration. Although the bariatric surgery drives major rearrangements of the gut microbiota, obese patients maintain the Prevotella enterotype before and after surgery, as shown by normal weight patients, with an increase of Bacteroides vulgatus and Bacteroides uniformis ...
June 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/29738477/microbiome-responses-to-an-uncontrolled-short-term-diet-intervention-in-the-frame-of-the-citizen-science-project
#2
Natalia S Klimenko, Alexander V Tyakht, Anna S Popenko, Anatoly S Vasiliev, Ilya A Altukhov, Dmitry S Ischenko, Tatiana I Shashkova, Daria A Efimova, Dmitri A Nikogosov, Dmitrii A Osipenko, Sergey V Musienko, Kseniya S Selezneva, Ancha Baranova, Alexander M Kurilshikov, Stepan M Toshchakov, Aleksei A Korzhenkov, Nazar I Samarov, Margarita A Shevchenko, Alina V Tepliuk, Dmitry G Alexeev
Personalized nutrition is of increasing interest to individuals actively monitoring their health. The relations between the duration of diet intervention and the effects on gut microbiota have yet to be elucidated. Here we examined the associations of short-term dietary changes, long-term dietary habits and lifestyle with gut microbiota. Stool samples from 248 citizen-science volunteers were collected before and after a self-reported 2-week personalized diet intervention, then analyzed using 16S rRNA sequencing...
May 8, 2018: Nutrients
https://www.readbyqxmd.com/read/29725011/gut-microbiomes-of-wild-great-apes-fluctuate-seasonally-in-response-to-diet
#3
Allison L Hicks, Kerry Jo Lee, Mara Couto-Rodriguez, Juber Patel, Rohini Sinha, Cheng Guo, Sarah H Olson, Anton Seimon, Tracie A Seimon, Alain U Ondzie, William B Karesh, Patricia Reed, Kenneth N Cameron, W Ian Lipkin, Brent L Williams
The microbiome is essential for extraction of energy and nutrition from plant-based diets and may have facilitated primate adaptation to new dietary niches in response to rapid environmental shifts. Here we use 16S rRNA sequencing to characterize the microbiota of wild western lowland gorillas and sympatric central chimpanzees and demonstrate compositional divergence between the microbiotas of gorillas, chimpanzees, Old World monkeys, and modern humans. We show that gorilla and chimpanzee microbiomes fluctuate with seasonal rainfall patterns and frugivory...
May 3, 2018: Nature Communications
https://www.readbyqxmd.com/read/29685983/gut-microbiome-analysis-identifies-potential-aetiological-factors-in-acute-gastroenteritis
#4
Natalia Castaño-Rodríguez, Alexander P Underwood, Juan Merif, Stephen M Riordan, William D Rawlinson, Hazel M Mitchell, Nadeem O Kaakoush
The morbidity and mortality resulting from acute gastroenteritis and associated chronic sequelae represent a substantial burden on health care systems worldwide. Few studies have investigated changes in the gut microbiome following an episode of acute gastroenteritis. Using non-directed 16S rRNA gene amplicon sequencing, the faecal microbiota of 475 patients with acute gastroenteritis was examined. Patient age was correlated to the overall microbial composition, with a decrease in Faecalibacterium observed in older patients...
April 23, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29623708/-gut-microbiota-its-development-and-relation-to-certain-diseases
#5
Hana Kiňová Sepová, Boris Dudík, Andrea Bilková
Coexistence of humans with microorganisms is well known for a long time. Besides the association with infectious diseases, personal microbiota is important for human health, possibly for some non-infectious diseases. Colonization of the human body with appropriate microorganisms after delivery is essential for physiological immune system maturation and also has an influence on central nervous system development. The composition of the gut microbiota is affected by the mode of delivery, early life nutrition and last but not least by lifestyle and drug, especially antibiotics intake...
2018: Ceská a Slovenská Farmacie
https://www.readbyqxmd.com/read/29610662/a-feasibility-study-association-between-gut-microbiota-enterotype-and-antibody-response-to-seasonal-trivalent-influenza-vaccine-in-adults
#6
Nick Shortt, Hazel Poyntz, Wayne Young, Angela Jones, Aurélie Gestin, Anna Mooney, Darmiga Thayabaran, Jenny Sparks, Tess Ostapowicz, Audrey Tay, Sally Poppitt, Sarah Elliott, Georgia Wakefield, Amber Parry-Strong, Jacqui Ralston, Olivier Gasser, Richard Beasley, Mark Weatherall, Irene Braithwaite, Elizabeth Forbes-Blom
Objective: We investigated the potential feasibility of a randomized controlled trial of a nutritional intervention that may alter human gut microbiota and support immune defence against respiratory tract infection in adults (Proposed Study). Methods: In total, 125 healthy adults aged 18-64 participated in a 6-month study that measured antibody response to the seasonal trivalent influenza vaccine. We assessed completion rates, procedure adherence rates and the influence of possible exclusion criteria on potential recruitment into the Proposed Study...
2018: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/29491401/gut-microbial-composition-in-patients-with-psoriasis
#7
Francisco M Codoñer, Ana Ramírez-Bosca, Eric Climent, Miguel Carrión-Gutierrez, Mariano Guerrero, Jose Manuel Pérez-Orquín, José Horga de la Parte, Salvador Genovés, Daniel Ramón, Vicente Navarro-López, Empar Chenoll
Since the last 5-10 years the relevance of the gut microbiome on different intestinal illnesses has been revealed. Recent findings indicate the effect of gut microbiome on certain dermatological diseases such as atopic dermatitis. However, data on other skin diseases such as psoriasis are limited. This is the first time attempting to reveal the gut microbiome composition of psoriatic patients with a prospective study including a group of patients with plaque psoriasis, analyzing their gut microbiome and the relationship between the microbiome composition and bacterial translocation...
February 28, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29440750/publisher-correction-enterotypes-in-the-landscape-of-gut-microbial-community-composition
#8
Paul I Costea, Falk Hildebrand, Manimozhiyan Arumugam, Fredrik Bäckhed, Martin J Blaser, Frederic D Bushman, Willem M de Vos, S Dusko Ehrlich, Claire M Fraser, Masahira Hattori, Curtis Huttenhower, Ian B Jeffery, Dan Knights, James D Lewis, Ruth E Ley, Howard Ochman, Paul W O'Toole, Christopher Quince, David A Relman, Fergus Shanahan, Shinichi Sunagawa, Jun Wang, George M Weinstock, Gary D Wu, Georg Zeller, Liping Zhao, Jeroen Raes, Rob Knight, Peer Bork
In the version of this Perspective originally published, the first and last name of co-author Manimozhiyan Arumugam were switched. This has now been corrected in all versions of the Perspective.
March 2018: Nature Microbiology
https://www.readbyqxmd.com/read/29362424/functional-metagenomics-identifies-novel-genes-abctpp-tmsrp1-and-tlsrp1-among-human-gut-enterotypes
#9
Manoj Kumar Verma, Vasim Ahmed, Shashank Gupta, Jitendra Kumar, Rajesh Pandey, Vibha Mandhan, Nar Singh Chauhan
Every niche in the biosphere is touched by the seemingly endless capacity of microbes to transform the world around them by adapting swiftly and flexibly to the environmental changes, likewise the gastrointestinal tract is no exception. The ability to cope with rapid changes in external osmolarity is an important aspect of gut microbes for their survival and colonization. Identification of these survival mechanisms is a pivotal step towards understanding genomic suitability of a symbiont for successful human gut colonization...
January 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348587/comparative-analyses-of-fecal-microbiota-in-chinese-isolated-yao-population-minority-zhuang-and-rural-han-by-16srna-sequencing
#10
Ming Liao, Yuanliang Xie, Yan Mao, Zheng Lu, Aihua Tan, Chunlei Wu, Zhifu Zhang, Yang Chen, Tianyu Li, Yu Ye, Ziting Yao, Yonghua Jiang, Hongzhe Li, Xiaoming Li, Xiaobo Yang, Qiuyan Wang, Zengnan Mo
The gut microbiome in humans is associated with geography, diet, lifestyles and so on, but its relationship with some isolated populations is not clear. We used the 16sRNA technique to sequence the fecal microbiome in the Chinese isolated Yao population and compared it with the major minority Zhuang and the major ethnic Han populations living in the same rural area. Information about diet frequency and health status and routine serum measurements were collected. The unweighted UniFrac principal coordinates analysis showed significant structural differences in fecal microbiota among the three ethnic groups...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29316320/human-microbiota-blood-group-antigens-and-disease
#11
REVIEW
D Rose Ewald, Susan C J Sumner
Far from being just "bugs in our guts," the microbiota interacts with the body in previously unimagined ways. Research into the genome and the microbiome has revealed that the human body and the microbiota have a long-established but only recently recognized symbiotic relationship; homeostatic balance between them regulates body function. That balance is fragile, easily disturbed, and plays a fundamental role in human health-our very survival depends on the healthy functioning of these microorganisms...
January 9, 2018: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/29301569/host-contributes-to-longitudinal-diversity-of-fecal-microbiota-in-swine-selected-for-lean-growth
#12
Duc Lu, Francesco Tiezzi, Constantino Schillebeeckx, Nathan P McNulty, Clint Schwab, Caleb Shull, Christian Maltecca
BACKGROUND: In pigs, gut bacteria have been shown to play important roles in nutritional, physiological, and immunological processes in the host. However, the contribution of their metagenomes or part of them, which are normally reflected by fragments of 16S rRNA-encoding genes, has yet to be fully investigated. RESULTS: Fecal samples, collected from a population of crossbred pigs at three time points, including weaning, week 15 post weaning (hereafter "week 15"), and end-of-feeding test (hereafter "off-test"), were used to evaluate changes in the composition of the fecal microbiome of each animal over time...
January 4, 2018: Microbiome
https://www.readbyqxmd.com/read/29228901/the-relation-between-blastocystis-and-the-intestinal-microbiota-in-swedish-travellers
#13
Joakim Forsell, Johan Bengtsson-Palme, Martin Angelin, Anders Johansson, Birgitta Evengård, Margareta Granlund
BACKGROUND: Blastocystis sp. is a unicellular eukaryote that is commonly found in the human intestine. Its ability to cause disease is debated and a subject for ongoing research. In this study, faecal samples from 35 Swedish university students were examined through shotgun metagenomics before and after travel to the Indian peninsula or Central Africa. We aimed at assessing the impact of travel on Blastocystis carriage and seek associations between Blastocystis and the bacterial microbiota...
December 11, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/29214176/human-gut-microbiota-associated-with-obesity-in-chinese-children-and-adolescents
#14
Ya-Ping Hou, Qing-Qing He, Hai-Mei Ouyang, Hai-Shan Peng, Qun Wang, Jie Li, Xiao-Fei Lv, Yi-Nan Zheng, Shao-Chuan Li, Hai-Liang Liu, Ai-Hua Yin
Objective: To investigate the gut microbiota differences of obese children compared with the control healthy cohort to result in further understanding of the mechanism of obesity development. Methods: We evaluated the 16S rRNA gene, the enterotypes, and quantity of the gut microbiota among obese children and the control cohort and learned the differences of the gut microbiota during the process of weight reduction in obese children. Results: In the present study, we learned that the gut microbiota composition was significantly different between obese children and the healthy cohort...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29143816/quantitative-microbiome-profiling-links-gut-community-variation-to-microbial-load
#15
Doris Vandeputte, Gunter Kathagen, Kevin D'hoe, Sara Vieira-Silva, Mireia Valles-Colomer, João Sabino, Jun Wang, Raul Y Tito, Lindsey De Commer, Youssef Darzi, Séverine Vermeire, Gwen Falony, Jeroen Raes
Current sequencing-based analyses of faecal microbiota quantify microbial taxa and metabolic pathways as fractions of the sample sequence library generated by each analysis. Although these relative approaches permit detection of disease-associated microbiome variation, they are limited in their ability to reveal the interplay between microbiota and host health. Comparative analyses of relative microbiome data cannot provide information about the extent or directionality of changes in taxa abundance or metabolic potential...
November 23, 2017: Nature
https://www.readbyqxmd.com/read/29129355/a-metagenomic-approach-to-dissect-the-genetic-composition-of-enterotypes-in-han-chinese-and-two-muslim-groups
#16
Jing Li, Ruiqing Fu, Yajun Yang, Hans-Peter Horz, Yaqun Guan, Yan Lu, Haiyi Lou, Lei Tian, Shijie Zheng, Hongjiao Liu, Meng Shi, Kun Tang, Sijia Wang, Shuhua Xu
Distinct enterotypes have been observed in the human gut but little is known about the genetic basis of the microbiome. Moreover, it is not clear how many genetic differences exist between enterotypes within or between populations. In this study, both the 16S rRNA gene and the metagenomes of the gut microbiota were sequenced from 48 Han Chinese, 48 Kazaks, and 96 Uyghurs, and taxonomies were assigned after de novo assembly. Single nucleotide polymorphisms were also identified by referring to data from the Human Microbiome Project...
January 2018: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/28983453/remote-sensing-between-liver-and-intestine-importance-of-microbial-metabolites
#17
Zidong Donna Fu, Julia Yue Cui
Recent technological advancements including metagenomics sequencing and metabolomics have allowed the discovery of critical functions of gut microbiota in obesity, malnutrition, neurological disorders, asthma, and xenobiotic metabolism. Classification of the human gut microbiome into distinct "enterotypes" has been proposed to serve as a new paradigm for understanding the interplay between microbial variation and human disease phenotypes, as many organs are affected by gut microbiota modifications during the pathogenesis of diseases...
June 2017: Current Pharmacology Reports
https://www.readbyqxmd.com/read/28883543/pre-treatment-microbial-prevotella-to-bacteroides-ratio-determines-body-fat-loss-success-during-a-6-month-randomized-controlled-diet-intervention
#18
M F Hjorth, H M Roager, T M Larsen, S K Poulsen, T R Licht, M I Bahl, Y Zohar, A Astrup
On the basis of the abundance of specific bacterial genera, the human gut microbiota can be divided into two relatively stable groups that might have a role in personalized nutrition. We studied these simplified enterotypes as prognostic markers for successful body fat loss on two different diets. A total of 62 participants with increased waist circumference were randomly assigned to receive an ad libitum New Nordic Diet (NND) high in fiber/whole grain or an Average Danish Diet for 26 weeks. Participants were grouped into two discrete enterotypes by their relative abundance of Prevotella spp...
March 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28882708/fermentation-properties-of-isomaltooligosaccharides-are-affected-by-human-fecal-enterotypes
#19
Qinqin Wu, Xiong'e Pi, Wei Liu, Huahai Chen, Yeshi Yin, Hongwei D Yu, Xin Wang, Liying Zhu
Isomaltooligosaccharides (IMOs) are enzymatically synthesized oligosaccharides that have potential prebiotic effects. Five IMO substrates with 2-16° of polymerization (DP) were studied for their fermentation capacities using human microbiomes in an in vitro batch fermentation model. Eleven fecal slurries belonging to three enterotypes, including the Bacteroides-, Prevotella- and Mixed-type, exhibited different degradation rates for long chain IMOs (DP 7 to 16). In contrast, the degradation rates for short chain IMOs (DP 2 to 6) were not affected by enterotypes...
December 2017: Anaerobe
https://www.readbyqxmd.com/read/28864748/novel-interactions-between-gut-microbiome-and-host-drug-processing-genes-modify-the-hepatic-metabolism-of-the-environmental-chemicals-polybrominated-diphenyl-ethers
#20
Cindy Yanfei Li, Soowan Lee, Sara Cade, Li-Jung Kuo, Irvin R Schultz, Deepak K Bhatt, Bhagwat Prasad, Theo K Bammler, Julia Yue Cui
The gut microbiome is a novel frontier in xenobiotic metabolism. Polybrominated diphenyl ethers (PBDEs), especially BDE-47 (2, 2', 4, 4'-tetrabromodiphenyl ether) and BDE-99 (2, 2', 4, 4',5-pentabromodiphenyl ether), are among the most abundant and persistent environmental contaminants that produce a variety of toxicities. Little is known about how the gut microbiome affects the hepatic metabolism of PBDEs and the PBDE-mediated regulation of drug-processing genes (DPGs) in vivo. The goal of this study was to determine the role of gut microbiome in modulating the hepatic biotransformation of PBDEs...
November 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
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