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Microbiome bioinformatics

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https://www.readbyqxmd.com/read/28727425/the-database-and-bioinformatics-studies-of-probiotics
#1
Lin Tao, Bohua Wang, Yafen Zhong, Siok Hoon Pow, Xian Zeng, Chu Qin, Peng Zhang, Shangying Chen, Weidong He, Ying Tan, Hongxia Liu, Yuyang Jiang, Weiping Chen, Yu Zong Chen
Probiotics have been widely explored for health benefits, animal cares, and agricultural applications. Recent advances in microbiome, microbiota and microbial dark matter research have fueled greater interests in and paved ways for the study of the mechanisms of probiotics and the discovery of new probiotics from uncharacterized microbial sources. A probiotics database named PROBIO was developed to facilitate these efforts and the need for the information of the known probiotics, which provides the comprehensive information about the probiotic functions of 448 marketed, 167 clinical trial/field trial and 382 research probiotics for use or being studied for use in humans, animals, and plants...
July 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28718274/-microbiome-and-next-generation-sequencing
#2
REVIEW
A Suárez Moya
The human microbiome is an internal ecosystem that refers to the community of microorganisms that populate the human body. These microorganisms are essential to support his health, because the interaction between the host immune system and microorganisms, provide the host with protection against pathogens, and contributes to the preservation of health. Bacteriological culture has been the basis for traditional microbiology; however, most of the bacterial forms observed in nature cannot be isolated with laboratory culture methods...
July 17, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28713344/outer-membrane-proteome-of-veillonella-parvula-a-diderm-firmicute-of-the-human-microbiome
#3
Daniel I Poppleton, Magalie Duchateau, Véronique Hourdel, Mariette Matondo, Jennifer Flechsler, Andreas Klingl, Christophe Beloin, Simonetta Gribaldo
Veillonella parvula is a biofilm-forming commensal found in the lungs, vagina, mouth, and gastro-intestinal tract of humans, yet it may develop into an opportunistic pathogen. Furthermore, the presence of Veillonella has been associated with the development of a healthy immune system in infants. Veillonella belongs to the Negativicutes, a diverse clade of bacteria that represent an evolutionary enigma: they phylogenetically belong to Gram-positive (monoderm) Firmicutes yet maintain an outer membrane (OM) with lipopolysaccharide similar to classic Gram-negative (diderm) bacteria...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28706917/insights-into-study-design-and-statistical-analyses-in-translational-microbiome-studies
#4
REVIEW
Jyoti Shankar
Research questions in translational microbiome studies are substantially more complex than their counterparts in basic science. Robust study designs with appropriate statistical analysis frameworks are pivotal to the success of these translational studies. This review considers how study designs can account for heterogeneous phenotypes by adopting representative sampling schemes for recruiting the study population and making careful choices about the control population. Advantages and limitations of 16S profiling and whole-genome sequencing, the two primary techniques for measuring the microbiome, are discussed followed by an overview of bioinformatic processing of high-throughput sequencing data from these measurements...
June 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28686570/using-metagenomics-to-connect-microbial-community-biodiversity-and-functions
#5
Lucas William Mendes, Lucas Peres Palma Braga, Acacio Aparecido Navarrete, Dennis Goss de Souza, Genivaldo Gueiros Zacarias Silva, Siu Mui Tsai
Microbes constitute about a third of the Earth's biomass and are composed by an enormous genetic diversity. In a majority of environments the microbial communities play crucial roles for the ecosystem functioning, where a drastic biodiversity alteration or loss could lead to negative effects on the environment and sustainability. A central goal in microbiome studies is to elucidate the relation between microbial diversity to functions. A better understanding of the relation diversity-function would increase the ability to manipulate that diversity to improve plant and animal health and also setting conservation priorities...
July 6, 2017: Current Issues in Molecular Biology
https://www.readbyqxmd.com/read/28682460/strategies-for-managing-rival-bacterial-communities-lessons-from-burying-beetles
#6
Ana Duarte, Martin Welch, Chris Swannack, Josef Wagner, Rebecca M Kilner
1.The role of bacteria in animal development, ecology and evolution is increasingly well-understood, yet little is known of how animal behaviour affects bacterial communities. Animals that benefit from defending a key resource from microbial competitors are likely to evolve behaviours to control or manipulate the animal's associated external microbiota. 2.We describe four possible mechanisms by which animals could gain a competitive edge by disrupting a rival bacterial community: 'weeding', 'seeding', 'replanting' and 'preserving'...
July 6, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28677210/gut-microbiome-diversity-influenced-more-by-the-westernized-dietary-regime-than-the-body-mass-index-as-assessed-using-effect-size-statistic
#7
Shannon C Davis, Jagjit S Yadav, Stephanie D Barrow, Boakai K Robertson
Human gut microbiome dysbiosis has been associated with the onset of metabolic diseases and disorders. However, the critical factors leading to dysbiosis are poorly understood. In this study, we provide increasing evidence of the association of diet type and body mass index (BMI) and how they relatively influence the taxonomic structure of the gut microbiota with respect to the causation of gut microbiome dysbiosis. The study included randomly selected Alabama residents (n = 81), including females (n = 45) and males (n = 36)...
July 4, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28669592/personalized-microbiome-dynamics-cytometric-fingerprints-for-routine-diagnostics
#8
REVIEW
Christin Koch, Susann Müller
Microbiomes convoy human life in countless ways. They are an essential part of the human body and interact with its host in countless ways. Currently, extensive microbiome analyses assessing the microbiomes' composition and functions based on sequencing information are still far away from being routine analyses due to the complexity of applied techniques and data analysis, their time demand as well as high costs. With the growing demand for on-time community assessment and monitoring of its dynamic behavior with high resolution, alternative high-throughput methods such as microbial community flow cytometry come into focus...
June 29, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28652796/the-microbiota-in-inflammatory-bowel-disease-current-and-therapeutic-insights
#9
REVIEW
Erin R Lane, Timothy L Zisman, David L Suskind
Inflammatory bowel disease is a heterogeneous group of chronic disorders that result from the interaction of the intestinal immune system with the gut microbiome. Until recently, most investigative efforts and therapeutic breakthroughs were centered on understanding and manipulating the altered mucosal immune response that characterizes these diseases. However, more recent studies have highlighted the important role of environmental factors, and in particular the microbiota, in disease onset and disease exacerbation...
2017: Journal of Inflammation Research
https://www.readbyqxmd.com/read/28625995/novel-antibiotic-resistance-determinants-from-agricultural-soil-exposed-to-antibiotics-widely-used-in-human-medicine-and-animal-farming
#10
Calvin Ho-Fung Lau, Kalene van Engelen, Stephen Gordon, Justin Renaud, Edward Topp
Antibiotic resistance has emerged globally as one of the biggest threats to human and animal health. Although the excessive use of antibiotics is recognized for accelerating the selection for resistance, there is a growing body of evidence suggesting that natural environments are "hotspots" for the development of both ancient and contemporary resistance mechanisms. Given that pharmaceuticals can be entrained onto agricultural land through anthropogenic activities, this could be a potential driver for the emergence and dissemination of resistance in soil bacteria...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28621304/epigenetic-and-gene-expression-analysis-of-ankylosing-spondylitis-associated-loci-implicate-immune-cells-and-the-gut-in-the-disease-pathogenesis
#11
Z Li, K Haynes, D J Pennisi, L K Anderson, X Song, G P Thomas, T Kenna, P Leo, M A Brown
Ankylosing spondylitis (AS) is a common immune-mediated arthropathy primarily affecting the spine and pelvis. Most AS patients have subclinical intestinal inflammation, suggesting the gut microbiome and the immune response play a role in pathogenesis. Susceptibility to AS is primarily genetic, and at least 114 susceptibility variants have been identified to date. We applied bioinformatic methods utilizing epigenetic and gene and protein expression data to identify the cell types through which AS-associated variants operate...
June 15, 2017: Genes and Immunity
https://www.readbyqxmd.com/read/28609785/comprehensive-analysis-of-microorganisms-accompanying-human-archaeological-remains
#12
Anna Philips, Ireneusz Stolarek, Bogna Kuczkowska, Anna Juras, Luiza Handschuh, Janusz Piontek, Piotr Kozlowski, Marek Figlerowicz
Background.: Metagenome analysis has become a common source of information about microbial communities that occupy a wide range of niches, including archaeological specimens. It has been shown that vast majority of DNA extracted from ancient samples come from bacteria (presumably modern contaminants). However, characterization of microbial DNA accompanying human remains has never been done systematically for a wide range of different samples. Findings.: We used metagenomic approaches to perform comparative analyses of microorganism communities present in 161 archaeological human remains...
June 13, 2017: GigaScience
https://www.readbyqxmd.com/read/28609295/clubber-removing-the-bioinformatics-bottleneck-in-big-data-analyses
#13
Maximilian Miller, Chengsheng Zhu, Yana Bromberg
With the advent of modern day high-throughput technologies, the bottleneck in biological discovery has shifted from the cost of doing experiments to that of analyzing results. clubber is our automated cluster-load balancing system developed for optimizing these "big data" analyses. Its plug-and-play framework encourages re-use of existing solutions for bioinformatics problems. clubber's goals are to reduce computation times and to facilitate use of cluster computing. The first goal is achieved by automating the balance of parallel submissions across available high performance computing (HPC) resources...
June 13, 2017: Journal of Integrative Bioinformatics
https://www.readbyqxmd.com/read/28560604/anthropogenic-protection-alters-the-microbiome-in-intertidal-mangrove-wetlands-in-hainan-island
#14
Juanli Yun, Yongcui Deng, Hongxun Zhang
Intertidal mangrove wetlands are of great economic and ecological importance. The regular influence of tides has led to the microbial communities in these wetlands differing significantly from those in other habitats. In this study, we investigated the microbiomes of the two largest mangrove wetlands in Hainan Island, China, which have different levels of anthropogenic protection. Soil samples were collected from the root zone of 13 mangrove species. The microbial composition, including key functional groups, was assessed using Illumina sequencing...
May 30, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28542523/impact-of-maintenance-immunosuppressive-therapy-on-the-fecal-microbiome-of-renal-transplant-recipients-comparison-between-an-everolimus-and-a-standard-tacrolimus-based-regimen
#15
Gianluigi Zaza, Alessandra Dalla Gassa, Giovanna Felis, Simona Granata, Sandra Torriani, Antonio Lupo
BACKGROUND: The gut microbiome is the full set of microbes living in the gastrointestinal tract and is emerging as an important dynamic/fluid system that, if altered by environmental, dietetic or pharmacological factors, could considerably influence drug response. However, the immunosuppressive drug-induced modifications of this system are still poorly defined. METHODS: We employed an innovative bioinformatics approach to assess differences in the whole-gut microbial metagenomic profile of 20 renal transplant recipients undergoing maintenance treatment with two different immunosuppressive protocols...
2017: PloS One
https://www.readbyqxmd.com/read/28509357/characterization-of-microbial-mixtures-by-mass-spectrometry
#16
REVIEW
Todd R Sandrin, Plamen A Demirev
MS applications in microbiology have increased significantly in the past 10 years, due in part to the proliferation of regulator-approved commercial MALDI MS platforms for rapid identification of clinical infections. In parallel, with the expansion of MS technologies in the "omics" fields, novel MS-based research efforts to characterize organismal as well as environmental microbiomes have emerged. Successful characterization of microorganisms found in complex mixtures of other organisms remains a major challenge for researchers and clinicians alike...
May 16, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28505251/false-discovery-rate-control-incorporating-phylogenetic-tree-increases-detection-power-in-microbiome-wide-multiple-testing
#17
Jian Xiao, Hongyuan Cao, Jun Chen
Motivation: Next generation sequencing technologies have enabled the study of the human microbiome through direct sequencing of microbial DNA, resulting in an enormous amount of microbiome sequencing data. One unique characteristic of microbiome data is the phylogenetic tree that relates all the bacterial species. Closely related bacterial species have a tendency to exhibit a similar relationship with the environment or disease. Thus, incorporating the phylogenetic tree information can potentially improve the detection power for microbiome-wide association studies, where hundreds or thousands of tests are conducted simultaneously to identify bacterial species associated with a phenotype of interest...
May 13, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28481971/bioinformatics-tools-for-quantitative-and-functional-metagenome-and-metatranscriptome-data-analysis-in-microbes
#18
Sheng-Yong Niu, Jinyu Yang, Adam McDermaid, Jing Zhao, Yu Kang, Qin Ma
Metagenomic and metatranscriptomic sequencing approaches are more frequently being used to link microbiota to important diseases and ecological changes. Many analyses have been used to compare the taxonomic and functional profiles of microbiota across habitats or individuals. While a large portion of metagenomic analyses focus on species-level profiling, some studies use strain-level metagenomic analyses to investigate the relationship between specific strains and certain circumstances. Metatranscriptomic analysis provides another important insight into activities of genes by examining gene expression levels of microbiota...
May 8, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28467461/16s-rrna-gene-sequencing-and-healthy-reference-ranges-for-28-clinically-relevant-microbial-taxa-from-the-human-gut-microbiome
#19
Daniel E Almonacid, Laurens Kraal, Francisco J Ossandon, Yelena V Budovskaya, Juan Pablo Cardenas, Elisabeth M Bik, Audrey D Goddard, Jessica Richman, Zachary S Apte
Changes in the relative abundances of many intestinal microorganisms, both those that naturally occur in the human gut microbiome and those that are considered pathogens, have been associated with a range of diseases. To more accurately diagnose health conditions, medical practitioners could benefit from a molecular, culture-independent assay for the quantification of these microorganisms in the context of a healthy reference range. Here we present the targeted sequencing of the microbial 16S rRNA gene of clinically relevant gut microorganisms as a method to provide a gut screening test that could assist in the clinical diagnosis of certain health conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28439121/bioinformatic-approaches-including-predictive-metagenomic-profiling-reveal-characteristics-of-bacterial-response-to-petroleum-hydrocarbon-contamination-in-diverse-environments
#20
Arghya Mukherjee, Bobby Chettri, James S Langpoklakpam, Pijush Basak, Aravind Prasad, Ashis K Mukherjee, Maitree Bhattacharyya, Arvind K Singh, Dhrubajyoti Chattopadhyay
Microbial remediation of oil polluted habitats remains one of the foremost methods for restoration of petroleum hydrocarbon contaminated environments. The development of effective bioremediation strategies however, require an extensive understanding of the resident microbiome of these habitats. Recent developments such as high-throughput sequencing has greatly facilitated the advancement of microbial ecological studies in oil polluted habitats. However, effective interpretation of biological characteristics from these large datasets remain a considerable challenge...
April 24, 2017: Scientific Reports
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