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https://www.readbyqxmd.com/read/27926791/high-prevalence-of-mitf-staining-in-undifferentiated-pleomorphic-sarcoma-caution-in-use-of-melanocytic-markers-in-sarcoma
#1
Bonnie Choy, Elizabeth Hyjek, Anthony G Montag, Peter Pytel, Rex Haydon, Hue H Luu, Chao Jie Zhen, Bradley C Long, Sabah Kadri, Jeremy P Segal, Larissa V Furtado, Nicole A Cipriani
AIMS: Diagnosis of undifferentiated pleomorphic sarcoma (UPS) may be challenging, as other lesions with undifferentiated spindle cell morphology must be excluded, including melanoma. Microphthalmia-associated transcription factor (MiTF) stains nevi and epithelioid melanomas, as well as some mesenchymal neoplasms. We evaluated the prevalence of MiTF and melanocytic markers in UPS and a subset of atypical fibroxanthoma (AFX). METHODS AND RESULTS: MiTF, SOX10, Melan-A, HMB45, and S100 immunostains were performed on resection specimens from 19 UPS and 5 AFX...
December 7, 2016: Histopathology
https://www.readbyqxmd.com/read/27924912/next-generation-systematics-an-innovative-approach-to-resolve-the-structure-of-complex-prokaryotic-taxa
#2
Vartul Sangal, Michael Goodfellow, Amanda L Jones, Edward C Schwalbe, Jochen Blom, Paul A Hoskisson, Iain C Sutcliffe
Prokaryotic systematics provides the fundamental framework for microbiological research but remains a discipline that relies on a labour- and time-intensive polyphasic taxonomic approach, including DNA-DNA hybridization, variation in 16S rRNA gene sequence and phenotypic characteristics. These techniques suffer from poor resolution in distinguishing between closely related species and often result in misclassification and misidentification of strains. Moreover, guidelines are unclear for the delineation of bacterial genera...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924603/differential-expression-and-functional-analysis-of-high-throughput-omics-data-using-open-source-tools
#3
Moritz Kebschull, Melanie Julia Fittler, Ryan T Demmer, Panos N Papapanou
Today, -omics analyses, including the systematic cataloging of messenger RNA and microRNA sequences or DNA methylation patterns in a cell population, organ, or tissue sample, allow for an unbiased, comprehensive genome-level analysis of complex diseases, offering a large advantage over earlier "candidate" gene or pathway analyses. A primary goal in the analysis of these high-throughput assays is the detection of those features among several thousand that differ between different groups of samples. In the context of oral biology, our group has successfully utilized -omics technology to identify key molecules and pathways in different diagnostic entities of periodontal disease...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924599/tools-and-strategies-for-analysis-of-genome-wide-and-gene-specific-dna-methylation-patterns
#4
Aniruddha Chatterjee, Euan J Rodger, Ian M Morison, Michael R Eccles, Peter A Stockwell
DNA methylation is a stable epigenetic mechanism that has important roles in the normal function of a cell and therefore also in disease etiology. Accurate measurements of normal and altered DNA methylation patterns are important to understand its role in regulating gene expression and cell phenotype. Remarkable progress has been made over the last decade in developing methodologies to investigate DNA methylation. The availability of next-generation sequencing has enabled the profiling of methylation marks at an unprecedented scale...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924575/genome-wide-analysis-of-ras-erk-signaling-targets
#5
Joshua P Plotnik, Peter C Hollenhorst
Identifying gene expression changes mediated by signaling pathways is necessary to determine mechanisms that cause phenotypic change. Recent advances in next-generation sequencing and informatic pipelines have streamlined the ability for laboratories to create and analyze transcriptomic data. Here, we describe the preparation of samples and transcriptomic analysis in order to determine gene expression programs regulated by RAS/ERK signaling.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924046/new-data-and-features-for-advanced-data-mining-in-manteia
#6
Olivier Tassy
Manteia is an integrative database available online at http://manteia.igbmc.fr which provides a large array of OMICs data related to the development of the mouse, chicken, zebrafish and human. The system is designed to use different types of data together in order to perform advanced datamining, test hypotheses or provide candidate genes involved in biological processes or responsible for human diseases. In this new version of the database, Manteia has been enhanced with new expression data originating from microarray and next generation sequencing experiments...
October 24, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27923841/biological-and-clinical-relevance-of-associated-genomic-alterations-in-myd88-l265p-and-non-l265p-mutated-diffuse-large-b-cell-lymphoma-analysis-of-361-cases
#7
Sydney Dubois, Pierre-Julien Viailly, Elodie Bohers, Philippe Bertrand, Philippe Ruminy, Vinciane Marchand, Catherine Maingonnat, Sylvain Mareschal, Jean-Michel Picquenot, Dominique Penther, Jean-Philippe Jais, Bruno Tesson, Pauline Peyrouze, Martin Figeac, Fabienne Desmots, Thierry Fest, Corinne Haioun, Thierry Lamy, Christiane Copie-Bergman, Bettina Fabiani, Richard Delarue, Frederic Peyrade, Marc André, Nicolas Ketterer, Karen Leroy, Gilles Salles, Thierry J Molina, Herve Tilly, Fabrice Jardin
PURPOSE: MYD88 mutations, notably the recurrent gain-of-function L265P variant, are a distinguishing feature of Activated B-Cell like (ABC) Diffuse Large B Cell Lymphoma (DLBCL), leading to constitutive NFkB pathway activation. The aim of this study was to examine the distinct genomic profiles of MYD88 mutant DLBCL, notably according to the presence of the L265P or other non-L265P MYD88 variants. EXPERIMENTAL DESIGN: A cohort of 361 DLBCL cases (94 MYD88 mutant and 267 MYD88 wild-type) was submitted to next generation sequencing (NGS) focusing on 34 genes in order to analyze associated mutations and copy number variations, as well as gene expression profiling, and clinical and prognostic analyses...
December 6, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27923345/combined-transcriptome-and-metabolome-analyses-to-understand-the-dynamic-responses-of-rice-plants-to-attack-by-the-rice-stem-borer-chilo-suppressalis-lepidoptera-crambidae
#8
Qingsong Liu, Xingyun Wang, Vered Tzin, Jörg Romeis, Yufa Peng, Yunhe Li
BACKGROUND: Rice (Oryza sativa L.), which is a staple food for more than half of the world's population, is frequently attacked by herbivorous insects, including the rice stem borer, Chilo suppressalis. C. suppressalis substantially reduces rice yields in temperate regions of Asia, but little is known about how rice plants defend themselves against this herbivore at molecular and biochemical level. RESULTS: In the current study, we combined next-generation RNA sequencing and metabolomics techniques to investigate the changes in gene expression and in metabolic processes in rice plants that had been continuously fed by C...
December 7, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27923065/mutations-in-the-heme-exporter-flvcr1-cause-sensory-neurodegeneration-with-loss-of-pain-perception
#9
Deborah Chiabrando, Marco Castori, Maja di Rocco, Martin Ungelenk, Sebastian Gießelmann, Matteo Di Capua, Annalisa Madeo, Paola Grammatico, Sophie Bartsch, Christian A Hübner, Fiorella Altruda, Lorenzo Silengo, Emanuela Tolosano, Ingo Kurth
Pain is necessary to alert us to actual or potential tissue damage. Specialized nerve cells in the body periphery, so called nociceptors, are fundamental to mediate pain perception and humans without pain perception are at permanent risk for injuries, burns and mutilations. Pain insensitivity can be caused by sensory neurodegeneration which is a hallmark of hereditary sensory and autonomic neuropathies (HSANs). Although mutations in several genes were previously associated with sensory neurodegeneration, the etiology of many cases remains unknown...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27923045/tumor-evolution-in-two-patients-with-basal-like-breast-cancer-a-retrospective-genomics-study-of-multiple-metastases
#10
Katherine A Hoadley, Marni B Siegel, Krishna L Kanchi, Christopher A Miller, Li Ding, Wei Zhao, Xiaping He, Joel S Parker, Michael C Wendl, Robert S Fulton, Ryan T Demeter, Richard K Wilson, Lisa A Carey, Charles M Perou, Elaine R Mardis
BACKGROUND: Metastasis is the main cause of cancer patient deaths and remains a poorly characterized process. It is still unclear when in tumor progression the ability to metastasize arises and whether this ability is inherent to the primary tumor or is acquired well after primary tumor formation. Next-generation sequencing and analytical methods to define clonal heterogeneity provide a means for identifying genetic events and the temporal relationships between these events in the primary and metastatic tumors within an individual...
December 2016: PLoS Medicine
https://www.readbyqxmd.com/read/27922076/identification-of-bnayucca6-as-a-candidate-gene-for-branch-angle-in-brassica-napus-by-qtl-seq
#11
Hui Wang, Hongtao Cheng, Wenxiang Wang, Jia Liu, Mengyu Hao, Desheng Mei, Rijin Zhou, Li Fu, Qiong Hu
Oilseed rape (Brassica napus L.) is one of the most important oil crops in China as well as worldwide. Branch angle as a plant architecture component trait plays an important role for high density planting and yield performance. In this study, bulked segregant analysis (BSA) combined with next generation sequencing technology was used to fine map QTL for branch angle. A major QTL, designated as branch angle 1 (ba1) was identified on A06 and further validated by Indel marker-based classical QTL mapping in an F2 population...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922044/from-tumour-heterogeneity-to-advances-in-precision-treatment-of-colorectal-cancer
#12
REVIEW
Cornelis J A Punt, Miriam Koopman, Louis Vermeulen
In recent years, the high heterogeneity of colorectal cancer (CRC) has become evident. Hence, biomarkers need to be developed that enable the stratification of patients with CRC into different prognostic subgroups and in relation to response to therapies, according to the distinctive tumour biology. Currently, only RAS-mutation status is used routinely as a negative predictive marker to avoid treatment with anti-EGFR agents in patients with metastatic CRC, and mismatch-repair status can guide the use of adjuvant chemotherapy in patients with early stage colon cancer...
December 6, 2016: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/27921039/clinical-manifestation-and-management-of-adpkd-in-western-countries
#13
REVIEW
Claudia Sommerer, Martin Zeier
BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease in Western countries. The prevalence is between 2.4/10,000 and 3.9/10,000. ADPKD represents a systemic disease resulting in deterioration in renal function. Until now, mutations in two genes (PKD1 and PKD2) have been identified. Recently, the European Medicines Agency (EMA) approved the use of the vasopressin V2 receptor antagonist tolvaptan to slow the progression of cyst development and renal insufficiency connected with ADPKD in adult patients with chronic kidney disease stages 1-3 at initiation of treatment with evidence of rapidly progressing disease...
October 2016: Kidney Diseases
https://www.readbyqxmd.com/read/27921038/the-clinical-manifestation-and-management-of-autosomal-dominant-polycystic-kidney-disease-in-china
#14
REVIEW
Cheng Xue, Chen-Chen Zhou, Ming Wu, Chang-Lin Mei
BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is the most common monogenic hereditary kidney disease characterized by progressive enlargement of renal cysts. The incidence is 1-2‰ worldwide. Mutations in two genes (PKD1 and PKD2) cause ADPKD. Currently, there is no pharmaceutical treatment available for ADPKD patients in China. Summary: This review focused on advances in clinical manifestation, gene diagnosis, risk factors, and management of ADPKD in China. There is an age-dependent increase in total kidney volume (TKV) and decrease in renal function in Chinese ADPKD patients...
October 2016: Kidney Diseases
https://www.readbyqxmd.com/read/27920554/next-generation-sequence-detects-arap3-as-a-novel-oncogene-in-papillary-thyroid-carcinoma
#15
Qing-Xuan Wang, En-Dong Chen, Ye-Feng Cai, Yi-Li Zhou, Zhou-Ci Zheng, Ying-Hao Wang, Yi-Xiang Jin, Wen-Xu Jin, Xiao-Hua Zhang, Ou-Chen Wang
PURPOSE: Thyroid cancer is the most frequent malignancies of the endocrine system, and it has became the fastest growing type of cancer worldwide. Much still remains unknown about the molecular mechanisms of thyroid cancer. Studies have found that some certain relationship between ARAP3 and human cancer. However, the role of ARAP3 in thyroid cancer has not been well explained. This study aimed to investigate the role of ARAP3 gene in papillary thyroid carcinoma. METHODS: Whole exon sequence and whole genome sequence of primary papillary thyroid carcinoma (PTC) samples and matched adjacent normal thyroid tissue samples were performed and then bioinformatics analysis was carried out...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27919910/ph-like-acute-lymphoblastic-leukemia-a-high-risk-subtype-in-adults
#16
Nitin Jain, Kathryn G Roberts, Elias Jabbour, Keyur Patel, Agda Karina Eterovic, Ken Chen, Patrick Zweidler-McKay, Xinyan Lu, Gloria Fawcett, Sa A Wang, Sergej Konoplev, Richard C Harvey, I-Ming Chen, Debbie Payne-Turner, Marcus Valentine, Deborah Thomas, Guillermo Garcia-Manero, Farhad Ravandi, Jorge Cortes, Steven Kornblau, Susan O'Brien, Sherry Pierce, Jeffrey Jorgensen, Kenna R Mills Shaw, Cheryl L Willman, Charles G Mullighan, Hagop Kantarjian, Marina Konopleva
Ph-like acute lymphoblastic leukemia (ALL) is a high-risk subtype of ALL in children. There are limited and conflicted data on the incidence and prognosis of Ph-like ALL in adults. Patients with newly-diagnosed B-ALL who received frontline chemotherapy at MD Anderson Cancer Center underwent gene expression profiling of leukemic cells to identify Ph-like ALL. Patients received hyper-CVAD (80%) or augmented-BFM (20%) regimen. Of 148 patients, 33.1% had Ph-like, 31.1% had Ph+, and 35.8% had other B-ALL subtypes (B-other)...
December 5, 2016: Blood
https://www.readbyqxmd.com/read/27919631/effect-of-seasonal-vaccination-on-the-selection-of-influenza-a-h3n2-epidemic-variants
#17
Yong Chong, Hideyuki Ikematsu
The effect of vaccination on the dynamics of influenza virus variants remains largely unknown in humans, unlike in poultry. In this study, we compared influenza hemagglutinin (HA) gene sequences isolated from vaccinated and unvaccinated populations with the yearly vaccine strains. In total, 181 influenza A/H3N2 virus samples isolated from 82 vaccinated and 99 unvaccinated patients (2011-15, four Japanese influenza seasons) were genetically analyzed using a next-generation sequencer. Amino acid (AA) differences from corresponding vaccine strains were found in 74 of 329 HA1 sites...
December 2, 2016: Vaccine
https://www.readbyqxmd.com/read/27918560/genome-wide-chemical-mapping-of-o-glcnacylated-proteins-in-drosophila-melanogaster
#18
Ta-Wei Liu, Mike Myschyshyn, Donald A Sinclair, Samy Cecioni, Kevin Beja, Barry M Honda, Ryan D Morin, David J Vocadlo
N-Acetylglucosamine β-O-linked to nucleocytoplasmic proteins (O-GlcNAc) is implicated in the regulation of gene expression in organisms, from humans to Drosophila melanogaster. Within Drosophila, O-GlcNAc transferase (OGT) is one of the Polycomb group proteins (PcGs) that act through Polycomb group response elements (PREs) to silence homeotic (HOX) and other PcG target genes. Using Drosophila, we identify new O-GlcNAcylated PcG proteins and develop an antibody-free metabolic feeding approach to chemoselectively map genomic loci enriched in O-GlcNAc using next-generation sequencing...
December 5, 2016: Nature Chemical Biology
https://www.readbyqxmd.com/read/27918106/cannabidiol-activates-neuronal-precursor-genes-in-human-gingival-mesenchymal-stromal-cells
#19
Thangavelu Soundara Rajan, Sabrina Giacoppo, Domenico Scionti, Francesca Diomede, Gianpaolo Grassi, Federica Pollastro, Adriano Piattelli, Placido Bramanti, Emanuela Mazzon, Oriana Trubiani
In the last years, mesenchymal stromal cells (MSCs) from oral tissues have received considerable interest in regenerative medicine since they can be obtained with minimal invasive procedure and exhibit immunomodulatory properties. This study was aimed to investigate whether in vitro pre-treatment of MSCs obtained from human gingiva (hGMSCs) with Cannabidiol (CBD), a cannabinoid component produced by the plant Cannabis sativa, may promote human gingiva derived MSCs to differentiate towards neuronal precursor cells...
December 5, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27917594/a-novel-two-nucleotide-deletion-in-hps6-affects-mepacrine-uptake-and-platelet-dense-granule-secretion-in-a-family-with-hermansky-pudlak-syndrome
#20
Oliver Andres, Verena Wiegering, Eva-Maria König, Anna Lena Schneider, Daniela Semeniak, Simon Stritt, Eva Klopocki, Harald Schulze
BACKGROUND: Hermansky-Pudlak syndrome (HPS) is a rare autosomal recessive disease characterized by oculocutaneous albinism and platelet dysfunction. We report on a novel HPS6 homozygous frameshift variant (c.1919_1920delTC; p.Val640Glyfs*29) in a nonconsanguineous Caucasian family with two affected siblings (index patients) who presented with oculocutaneous albinism at birth and a mild bleeding phenotype during childhood and adolescence. PROCEDURE: Genetic analysis was conducted by panel-based next-generation sequencing (NGS) and Sanger sequencing...
December 4, 2016: Pediatric Blood & Cancer
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