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https://www.readbyqxmd.com/read/28092810/expectation-and-futurity-the-remarkable-success-of-genetic-determinism
#1
Maurizio Esposito
Genetic determinism is nowadays largely questioned and widely criticized. However, if we look at the history of biology in the last one hundred years, we realize that genetic determinism has always been controversial. Why, then, did it acquire such relevance in the past despite facing longstanding criticism? Through the analysis of some of the ambitious expectations of future scientific applications, this article explores the possibility that part of the historical success of genetic determinism lies in the powerful rhetorical strategies that have connected the germinal matter with alluring bio-technological visions...
January 13, 2017: Studies in History and Philosophy of Biological and Biomedical Sciences
https://www.readbyqxmd.com/read/28092796/global-open-data-management-in-metabolomics
#2
REVIEW
Kenneth Haug, Reza M Salek, Christoph Steinbeck
Chemical Biology employs chemical synthesis, analytical chemistry and other tools to study biological systems. Recent advances in both molecular biology such as next generation sequencing (NGS) have led to unprecedented insights towards the evolution of organisms' biochemical repertoires. Because of the specific data sharing culture in Genomics, genomes from all kingdoms of life become readily available for further analysis by other researchers. While the genome expresses the potential of an organism to adapt to external influences, the Metabolome presents a molecular phenotype that allows us to asses the external influences under which an organism exists and develops in a dynamic way...
January 13, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28092683/case-control-association-mapping-by-proxy-using-family-history-of-disease
#3
Jimmy Z Liu, Yaniv Erlich, Joseph K Pickrell
Collecting cases for case-control genetic association studies can be time-consuming and expensive. In some situations (such as studies of late-onset or rapidly lethal diseases), it may be more practical to identify family members of cases. In randomly ascertained cohorts, replacing cases with their first-degree relatives enables studies of diseases that are absent (or nearly absent) in the cohort. We refer to this approach as genome-wide association study by proxy (GWAX) and apply it to 12 common diseases in 116,196 individuals from the UK Biobank...
January 16, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28092682/limited-heterogeneity-of-known-driver-gene-mutations-among-the-metastases-of-individual-patients-with-pancreatic-cancer
#4
Alvin P Makohon-Moore, Ming Zhang, Johannes G Reiter, Ivana Bozic, Benjamin Allen, Deepanjan Kundu, Krishnendu Chatterjee, Fay Wong, Yuchen Jiao, Zachary A Kohutek, Jungeui Hong, Marc Attiyeh, Breanna Javier, Laura D Wood, Ralph H Hruban, Martin A Nowak, Nickolas Papadopoulos, Kenneth W Kinzler, Bert Vogelstein, Christine A Iacobuzio-Donahue
The extent of heterogeneity among driver gene mutations present in naturally occurring metastases-that is, treatment-naive metastatic disease-is largely unknown. To address this issue, we carried out 60× whole-genome sequencing of 26 metastases from four patients with pancreatic cancer. We found that identical mutations in known driver genes were present in every metastatic lesion for each patient studied. Passenger gene mutations, which do not have known or predicted functional consequences, accounted for all intratumoral heterogeneity...
January 16, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28092681/genomic-analysis-of-globally-diverse-mycobacterium-tuberculosis-strains-provides-insights-into-the-emergence-and-spread-of-multidrug-resistance
#5
Abigail L Manson, Keira A Cohen, Thomas Abeel, Christopher A Desjardins, Derek T Armstrong, Clifton E Barry, Jeannette Brand, Sinéad B Chapman, Sang-Nae Cho, Andrei Gabrielian, James Gomez, Andreea M Jodals, Moses Joloba, Pontus Jureen, Jong Seok Lee, Lesibana Malinga, Mamoudou Maiga, Dale Nordenberg, Ecaterina Noroc, Elena Romancenco, Alex Salazar, Willy Ssengooba, A A Velayati, Kathryn Winglee, Aksana Zalutskaya, Laura E Via, Gail H Cassell, Susan E Dorman, Jerrold Ellner, Parissa Farnia, James E Galagan, Alex Rosenthal, Valeriu Crudu, Daniela Homorodean, Po-Ren Hsueh, Sujatha Narayanan, Alexander S Pym, Alena Skrahina, Soumya Swaminathan, Martie Van der Walt, David Alland, William R Bishai, Ted Cohen, Sven Hoffner, Bruce W Birren, Ashlee M Earl
Multidrug-resistant tuberculosis (MDR-TB), caused by drug-resistant strains of Mycobacterium tuberculosis, is an increasingly serious problem worldwide. Here we examined a data set of whole-genome sequences from 5,310 M. tuberculosis isolates from five continents. Despite the great diversity of these isolates with respect to geographical point of isolation, genetic background and drug resistance, the patterns for the emergence of drug resistance were conserved globally. We have identified harbinger mutations that often precede multidrug resistance...
January 16, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28092679/genome-wide-analysis-of-p53-regulated-transcription-in-myc-driven-lymphomas
#6
C Tonelli, M J Morelli, A Sabò, A Verrecchia, L Rotta, T Capra, S Bianchi, S Campaner, B Amati
The tumour suppressor p53 is a transcription factor that controls cellular stress responses. Here, we dissected the transcriptional programmes triggered upon restoration of p53 in Myc-driven lymphomas, based on the integrated analysis of p53 genomic occupancy and gene regulation. p53 binding sites were identified at promoters and enhancers, both characterized by the pre-existence of active chromatin marks. Only a small fraction of these sites showed the 20 base-pair p53 consensus motif, suggesting that p53 recruitment to genomic DNA was primarily mediated through protein-protein interactions in a chromatin context...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28092471/genomics-pipelines-and-data-integration-challenges-and-opportunities-in-the-research-setting
#7
Jeremy Davis-Turak, Sean M Courtney, E Starr Hazard, W Bailey Glen, Willian da Silveira, Timothy Wesselman, Larry P Harbin, Bethany J Wolf, Dongjun Chung, Gary Hardiman
The emergence and mass utilization of high-throughput (HT) technologies, including sequencing technologies (genomics) and mass spectrometry (proteomics, metabolomics, lipids), has allowed geneticists, biologists, and biostatisticians to bridge the gap between genotype and phenotype on a massive scale. These new technologies have brought rapid advances in our understanding of cell biology, evolutionary history, microbial environments, and are increasingly providing new insights and applications towards clinical care and personalized medicine...
January 16, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28092388/exploration-and-analysis-of-drug-modes-of-action-through-feature-integration
#8
Mingyuan Xin, Jun Fan, Mingyao Liu, Zhenran Jiang
Identifying drug modes of action (MoA) is of paramount importance for having a good grasp of drug indications in clinical tests. Anticipating MoA can help to discover new uses for approved drugs. Here we first used a drug-set enrichment analysis method to discover significant biological activities in every mode of action category. Then, we proposed a new computational model, a probability ensemble approach based on Bayesian network theory, which integrated chemical, therapeutic, genomic and phenotypic properties of over a thousand of FDA approved drugs to assist with the prediction of MoA...
January 16, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28092170/a-single-molecular-marker-to-distinguish-between-species-of-dioscorea
#9
Natascha Techen, Iffat Parveen, Ikhlas A Khan
Yams are species of the genus Dioscorea (family Dioscoreaceae), which consists of approximately 630 species. The majority of the world production of yams occurs in Africa with 58.8 million t annually, but they are also produced in the Americas and Asia. The saponins in yams have been reported to possess various properties to improve health. The tuber and aerial parts of various species often share morphological similarities, which can cause problems in the proper identification of sample material. For example, the rootstocks and aerial parts of Dioscorea villosa L...
November 3, 2016: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28092137/isolation-and-characterization-of-rhizobium-sp-strain-ys-1r-that-degrades-lignin-in-plant-biomass
#10
Colin A Jackson, Matthew B Couger, Madhu Prabhakaran, Karthikeyan D Ramachandriya, Patricia Canaan, Babu Z Fathepure
AIMS: The aim of this work was to isolate novel lignin degrading organisms. METHODS AND RESULTS: Several pure cultures of bacteria that degrade lignin were isolated from bacterial consortia developed from decaying biomass. Among the isolates, Rhizobium sp. strain YS-1r (closest relative of Rhizobium petrolearium Strain SL-1) was explored for its lignin degrading ability. Microcosm studies showed that strain YS-1r was able to degrade a variety of lignin monomers, dimers, and also native lignin in switchgrass and alfalfa...
January 16, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28092050/microwestern-arrays-for-systems-level-analysis-of-sh2-domain-containing-proteins
#11
Mark F Ciaccio, Richard B Jones
The Microwestern Array (MWA) method combines the scalability and miniaturization afforded by the Reverse Phase Lysate Array (RPLA) approach with the electrophoretic separation characteristic of the Western blot. This technology emulates the creation of an array of small Western blots on a single sheet of nitrocellulose allowing for the sensitive and quantitative measurement of hundreds of proteins from hundreds of cell lysates with minimal cost and maximal accuracy, precision, and reproducibility. The MWA is a versatile technology that can be easily configured for purposes such as antibody screening, cell signaling network inference, protein modification/phenotype regression analysis, and genomic/proteomic relationships...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28092027/classification-and-lineage-tracing-of-sh2-domains-throughout-eukaryotes
#12
Bernard A Liu
Today there exists a rapidly expanding number of sequenced genomes. Cataloging protein interaction domains such as the Src Homology 2 (SH2) domain across these various genomes can be accomplished with ease due to existing algorithms and predictions models. An evolutionary analysis of SH2 domains provides a step towards understanding how SH2 proteins integrated with existing signaling networks to position phosphotyrosine signaling as a crucial driver of robust cellular communication networks in metazoans. However organizing and tracing SH2 domain across organisms and understanding their evolutionary trajectory remains a challenge...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28091882/identification-of-some-main-streptococcus-iniae-associated-proteins-relationship
#13
Fatima El Aamri, José Ángel Guillén, Daniel Padilla, Félix Acosta, Fernando Real
The surface-associated proteins play a key role in bacterial physiology and pathogenesis, and are the major targets in the development of new vaccines. These proteins contribute to the adaptation of bacteria to different hosts and environments. To study differences at the genomic level, we first sequenced the whole genome of Streptococcus iniae from fish (IUSA-1 strain) and compared it to Streptococcus iniae from human (9117 strain), revealing a high similitude between both strains. To gain further insights into host- and environment-specific differences, we then studied proteins in silico and by High Performance Liquid Chromatography...
January 14, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28091681/microbial-rrna-sequencing-analysis-of-evaporative-cooler-indoor-environments-located-in-the-great-basin-desert-region-of-the-united-states
#14
Angela R Lemons, Mary Beth Hogan, Ruth A Gault, Kathleen Holland, Edward Sobek, Kimberly A Olsen-Wilson, Yeonmi Park, Ju-Hyeong Park, Ja Kook Gu, Michael L Kashon, Brett J Green
Recent studies conducted in the Great Basin Desert region of the United States have shown that skin test reactivity to fungal and dust mite allergens are increased in children with asthma or allergy living in homes with evaporative coolers (EC). The objective of this study was to determine if the increased humidity previously reported in EC homes leads to varying microbial populations compared to homes with air conditioners (AC). Children with physician-diagnosed allergic rhinitis living in EC or AC environments were recruited into the study...
January 16, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28091575/development-and-evaluation-of-a-high-density-genotyping-axiom_arachis-array-with-58%C3%A2-k-snps-for-accelerating-genetics-and-breeding-in-groundnut
#15
Manish K Pandey, Gaurav Agarwal, Sandip M Kale, Josh Clevenger, Spurthi N Nayak, Manda Sriswathi, Annapurna Chitikineni, Carolina Chavarro, Xiaoping Chen, Hari D Upadhyaya, Manish K Vishwakarma, Soraya Leal-Bertioli, Xuanqiang Liang, David J Bertioli, Baozhu Guo, Scott A Jackson, Peggy Ozias-Akins, Rajeev K Varshney
Single nucleotide polymorphisms (SNPs) are the most abundant DNA sequence variation in the genomes which can be used to associate genotypic variation to the phenotype. Therefore, availability of a high-density SNP array with uniform genome coverage can advance genetic studies and breeding applications. Here we report the development of a high-density SNP array 'Axiom_Arachis' with 58 K SNPs and its utility in groundnut genetic diversity study. In this context, from a total of 163,782 SNPs derived from DNA resequencing and RNA-sequencing of 41 groundnut accessions and wild diploid ancestors, a total of 58,233 unique and informative SNPs were selected for developing the array...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28091568/identification-of-misexpressed-genetic-elements-in-hybrids-between-drosophila-related-species
#16
Hélène Lopez-Maestre, Elias A G Carnelossi, Vincent Lacroix, Nelly Burlet, Bruno Mugat, Séverine Chambeyron, Claudia M A Carareto, Cristina Vieira
Crosses between close species can lead to genomic disorders, often considered to be the cause of hybrid incompatibility, one of the initial steps in the speciation process. How these incompatibilities are established and what are their causes remain unclear. To understand the initiation of hybrid incompatibility, we performed reciprocal crosses between two species of Drosophila (D. mojavensis and D. arizonae) that diverged less than 1 Mya. We performed a genome-wide transcriptomic analysis on ovaries from parental lines and on hybrids from reciprocal crosses...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28091548/genome-analysis-of-a-zygomycete-fungus-choanephora-cucurbitarum-elucidates-necrotrophic-features-including-bacterial-genes-related-to-plant-colonization
#17
Byoungnam Min, Ji-Hyun Park, Hongjae Park, Hyeon-Dong Shin, In-Geol Choi
A zygomycete fungus, Choanephora cucurbitarum is a plant pathogen that causes blossom rot in cucurbits and other plants. Here we report the genome sequence of Choanephora cucurbitarum KUS-F28377 isolated from squash. The assembled genome has a size of 29.1 Mbp and 11,977 protein-coding genes. The genome analysis indicated that C. cucurbitarum may employ a plant pathogenic mechanism similar to that of bacterial plant pathogens. The genome contained 11 genes with a Streptomyces subtilisin inhibitor-like domain, which plays an important role in the defense against plant immunity...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090814/personalized-dynamic-prediction-of-death-according-to-tumour-progression-and-high-dimensional-genetic-factors-meta-analysis-with-a-joint-model
#18
Takeshi Emura, Masahiro Nakatochi, Shigeyuki Matsui, Hirofumi Michimae, Virginie Rondeau
Developing a personalized risk prediction model of death is fundamental for improving patient care and touches on the realm of personalized medicine. The increasing availability of genomic information and large-scale meta-analytic data sets for clinicians has motivated the extension of traditional survival prediction based on the Cox proportional hazards model. The aim of our paper is to develop a personalized risk prediction formula for death according to genetic factors and dynamic tumour progression status based on meta-analytic data...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/28090760/expression-patterns-of-cardiac-aging-in-drosophila
#19
Leah Cannon, Alexander C Zambon, Anthony Cammarato, Zhi Zhang, Georg Vogler, Matthew Munoz, Erika Taylor, Jérôme Cartry, Sanford I Bernstein, Simon Melov, Rolf Bodmer
Aging causes cardiac dysfunction, often leading to heart failure and death. The molecular basis of age-associated changes in cardiac structure and function is largely unknown. The fruit fly, Drosophila melanogaster, is well-suited to investigate the genetics of cardiac aging. Flies age rapidly over the course of weeks, benefit from many tools to easily manipulate their genome, and their heart has significant genetic and phenotypic similarities to the human heart. Here, we performed a cardiac-specific gene expression study on aging Drosophila and carried out a comparative meta-analysis with published rodent data...
February 2017: Aging Cell
https://www.readbyqxmd.com/read/28090405/transcriptomic-analysis-of-diplomonad-parasites-reveals-a-trans-spliced-intron-in-a-helicase-gene-in-giardia
#20
Scott William Roy
BACKGROUND: The mechanisms by which DNA sequences are expressed is the central preoccupation of molecular genetics. Recently, ourselves and others reported that in the diplomonad protist Giardia lamblia, the coding regions of several mRNAs are produced by ligation of independent RNA species expressed from distinct genomic loci. Such trans-splicing of introns was found to affect nearly as many genes in this organism as does classical cis-splicing of introns. These findings raised questions about the incidence of intron trans-splicing both across the G...
2017: PeerJ
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