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https://www.readbyqxmd.com/read/28719906/a-common-ancestral-asn242ser-mutation-in-tmem67-identified-in-multiple-iranian-families-with-joubert-syndrome
#1
MohammadReza Dehghani, Majid Mojarad, Ehsan Ghayoor Karimiani, Mohammad Yahya Vahidi Mehrjardi, Afsaneh Sahebalzamani, Farah Ashrafzadeh, Mehran Beiraghi Toosi, Atiyeh Eslahi, Najmeh Ahangari, Seyed Mojtaba Yassini, Afsaneh Hassanbeigi, Azam Rasti, Seyed Mehdi Kalantar, Reza Maroofian
BACKGROUND: Joubert syndrome (JS) is a clinically and genetically heterogeneous group of rare neurodevelopmental disorder characterised by peculiar midbrain-hindbrain malformation, known as the "molar tooth" sign. JS can manifest a broad range of signs and symptoms. The most common features of JS are hypotonia, ataxia, developmental delay/intellectual disability, abnormal eye movements, and neonatal breathing abnormalities. To date, 29 genes have been shown to cause JS. METHODS: We employed whole-genome single nucleotide polymorphism genotyping in a group of Iranian families with JS and Sanger sequencing of a known mutation associated with JS located in a single homozygous regions shared by affected members of the families...
July 19, 2017: Public Health Genomics
https://www.readbyqxmd.com/read/28719296/analysis-of-dengue-serotype-4-in-sri-lanka-during-the-2012-2013-dengue-epidemic
#2
Anna Uehara, Hasitha Aravinda Tissera, Champica K Bodinayake, Ananda Amarasinghe, Ajith Nagahawatte, L Gayani Tillekeratne, Jie Cui, Megan E Reller, Paba Palihawadana, Sunethra Gunasena, Aruna Dharshan Desilva, Annelies Wilder-Smith, Duane J Gubler, Christopher W Woods, October M Sessions
The four serotypes of dengue virus (DENV-1, -2, -3, and -4) have had a rapidly expanding geographic range and are now endemic in over 100 tropical and subtropical countries. Sri Lanka has experienced periodic dengue outbreaks since the 1960s, but since 1989 epidemics have become progressively larger and associated with more severe disease. The dominant virus in the 2012 epidemic was DENV-1, but DENV-4 infections were also commonly observed. DENV-4 transmission was first documented in Sri Lanka when it was isolated from a traveler in 1978, but has been comparatively uncommon since dengue surveillance began in the early 1980s...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718505/immunogenomic-approaches-to-understand-the-function-of-immune-disease-variants
#3
REVIEW
Dafni Anna Glinos, Blagoje Soskic, Gosia Trynka
Mapping hundreds of genetic variants through genome wide association studies provided an opportunity to gain insights into the pathobiology of immune mediated diseases. However, since most of the disease variants fall outside the gene coding sequences, thereby implicating gene expression regulation as the causal mechanism, the functional interpretation of the exact role of the associated variants remains to be determined. Despite these challenges, integration of disease associated variants with large scale genomic maps of cell type specific gene regulation both at chromatin and transcript levels deliver examples of functionally prioritised causal variants and genes...
July 17, 2017: Immunology
https://www.readbyqxmd.com/read/28717646/genetic-variation-and-its-reflection-on-posttranslational-modifications-in-frequency-clock-and-mating-type-a-1-proteins-in-sordaria-fimicola
#4
Rabia Arif, Faiza Akram, Tazeen Jamil, Hamid Mukhtar, Siu Fai Lee, Muhammad Saleem
Posttranslational modifications (PTMs) occur in all essential proteins taking command of their functions. There are many domains inside proteins where modifications take place on side-chains of amino acids through various enzymes to generate different species of proteins. In this manuscript we have, for the first time, predicted posttranslational modifications of frequency clock and mating type a-1 proteins in Sordaria fimicola collected from different sites to see the effect of environment on proteins or various amino acids pickings and their ultimate impact on consensus sequences present in mating type proteins using bioinformatics tools...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28717645/whole-genome-amplification-of-day-3-or-day-5-human-embryos-biopsies-provides-a-suitable-dna-template-for-pcr-based-techniques-for-genotyping-a-complement-of-preimplantation-genetic-testing
#5
Elizabeth Schaeffer, Bruno López-Bayghen, Adina Neumann, Leonardo M Porchia, Rafael Camacho, Efraín Garrido, Rocío Gómez, Felipe Camargo, Esther López-Bayghen
Our objective was to determine if whole genome amplification (WGA) provides suitable DNA for qPCR-based genotyping for human embryos. Single blastomeres (Day 3) or trophoblastic cells (Day 5) were isolated from 342 embryos for WGA. Comparative Genomic Hybridization determined embryo sex as well as Trisomy 18 or Trisomy 21. To determine the embryo's sex, qPCR melting curve analysis for SRY and DYS14 was used. Logistic regression indicated a 4.4%, 57.1%, or 98.8% probability of a male embryo when neither gene, SRY only, or both genes were detected, respectively (accuracy = 94...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28717245/development-and-validation-of-a-three-gene-prognostic-signature-for-patients-with-hepatocellular-carcinoma
#6
Binghua Li, Wendu Feng, Ouyang Luo, Tiancheng Xu, Yajuan Cao, Hongyan Wu, Decai Yu, Yitao Ding
Hepatocellular carcinoma (HCC) is the leading cause of cancer-related death worldwide, because recurrence often occurs in most HCC patients undergoing hepatectomy. It is necessary to identify patients with high risk for recurrence and adopt effective therapies. An obstacle to monitor patients at high risk for poor prognosis has been the lack of useful predictive biomarkers. Fortunately, recent progress in system biology allows to screen the biomarkers for HCC prognosis in a high-throughput manner. In this study, we performed systematic Kaplan-Meier survival analysis of the whole mRNA transcriptomics based on the Cancer Genome Atlas project (TCGA) and developed a three-gene prognostic signature composing of three genes UPB1, SOCS2 and RTN3...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717203/genome-wide-identification-and-characterization-of-circular-rnas-by-high-throughput-sequencing-in-soybean
#7
Wei Zhao, Yihui Cheng, Chi Zhang, Qingbo You, Xinjie Shen, Wei Guo, Yongqing Jiao
Circular RNAs (circRNAs) arise during pre-mRNA splicing, in which the 3' and 5' ends are linked to each other by a covalent bond. Soybean is an ancient tetraploid, which underwent two whole genome duplications. Most of soybean genes are paralogous genes with multiple copies. Although many circRNAs have been identified in animals and plants, little is known about soybean circRNAs, especially about circRNAs derived from paralogous genes. Here, we used deep sequencing technology coupled with RNase R enrichment strategy and bioinformatic approach to uncover circRNAs in soybean...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717182/widespread-alternative-exon-usage-in-clinically-distinct-subtypes-of-invasive-ductal-carcinoma
#8
Sunniva Stordal Bjørklund, Anshuman Panda, Surendra Kumar, Michael Seiler, Doug Robinson, Jinesh Gheeya, Ming Yao, Grethe I Grenaker Alnæs, Deborah Toppmeyer, Margit Riis, Bjørn Naume, Anne-Lise Børresen-Dale, Vessela N Kristensen, Shridar Ganesan, Gyan Bhanot
Cancer cells can have different patterns of exon usage of individual genes when compared to normal tissue, suggesting that alternative splicing may play a role in shaping the tumor phenotype. The discovery and identification of gene variants has increased dramatically with the introduction of RNA-sequencing technology, which enables whole transcriptome analysis of known, as well as novel isoforms. Here we report alternative splicing and transcriptional events among subtypes of invasive ductal carcinoma in The Cancer Genome Atlas (TCGA) Breast Invasive Carcinoma (BRCA) cohort...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717172/evolution-of-the-pseudomonas-aeruginosa-mutational-resistome-in-an-international-cystic-fibrosis-clone
#9
Carla López-Causapé, Lea Mette Sommer, Gabriel Cabot, Rosa Rubio, Alain A Ocampo-Sosa, Helle Krogh Johansen, Joan Figuerola, Rafael Cantón, Timothy J Kidd, Soeren Molin, Antonio Oliver
Emergence of epidemic clones and antibiotic resistance development compromises the management of Pseudomonas aeruginosa cystic fibrosis (CF) chronic respiratory infections. Whole genome sequencing (WGS) was used to decipher the phylogeny, interpatient dissemination, WGS mutator genotypes (mutome) and resistome of a widespread clone (CC274), in isolates from two highly-distant countries, Australia and Spain, covering an 18-year period. The coexistence of two divergent CC274 clonal lineages was revealed, but without evident geographical barrier; phylogenetic reconstructions and mutational resistome demonstrated the interpatient transmission of mutators...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717136/association-of-plasma-and-urinary-mutant-dna-with-clinical-outcomes-in-muscle-invasive-bladder-cancer
#10
K M Patel, K E van der Vos, C G Smith, F Mouliere, D Tsui, J Morris, D Chandrananda, F Marass, D van den Broek, D E Neal, V J Gnanapragasam, T Forshew, B W van Rhijn, C E Massie, N Rosenfeld, M S van der Heijden
Muscle Invasive Bladder Cancer (MIBC) has a poor prognosis. Whilst patients can achieve a 6% improvement in overall survival with Neo-Adjuvant Chemotherapy (NAC), many do not respond. Body fluid mutant DNA (mutDNA) may allow non-invasive identification of treatment failure. We collected 248 liquid biopsy samples including plasma, cell pellet (UCP) and supernatant (USN) from spun urine, from 17 patients undergoing NAC. We assessed single nucleotide variants and copy number alterations in mutDNA using Tagged-Amplicon- and shallow Whole Genome- Sequencing...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716865/correction-for-brigham-et-al-whole-genome-microarray-and-gene-deletion-studies-reveal-regulation-of-the-polyhydroxyalkanoate-production-cycle-by-the-stringent-response-in-ralstonia-eutropha-h16
#11
Christopher J Brigham, Daan R Speth, ChoKyun Rha, Anthony J Sinskey
No abstract text is available yet for this article.
August 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28716523/sensitivity-towards-the-grp78-inhibitor-kp1339-it-139-is-characterized-by-apoptosis-induction-via-caspase-8-upon-disruption-of-er-homeostasis
#12
Beatrix Schoenhacker-Alte, Thomas Mohr, Christine Pirker, Kushtrim Kryeziu, Paul-Steffen Kuhn, Alicia Buck, Thilo Hofmann, Christopher Gerner, Gerrit Hermann, Gunda Koellensperger, Bernhard K Keppler, Walter Berger, Petra Heffeter
The ruthenium drug and GRP78 inhibitor KP1339/IT-139 has already demonstrated promising anticancer activity in a phase I clinical trial. This study aimed to identify mechanisms underlying increased sensitivity to KP1339 treatment. Based on a screen utilizing 23 cell lines, a small panel was selected to compare KP1339-sensitive and low-responsive models. KP1339 sensitivity was neither based on differences in ruthenium accumulation, nor sensitivity to oxidative stress or constituents of KP1339 (ruthenium chloride and indazole)...
July 14, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28716462/rapid-identification-of-a-mycobacterium-tuberculosis-full-genetic-drug-resistance-profile-through-whole-genome-sequencing-directly-from-sputum
#13
Camus Nimmo, Ronan Doyle, Carrie Burgess, Rachel Williams, Rebecca Gorton, Timothy D McHugh, Mike Brown, Stephen Morris-Jones, Helen Booth, Judith Breuer
INTRODUCTION: Resistance to second line tuberculosis drugs is common, but slow to diagnose with phenotypic drug sensitivity testing. Rapid molecular tests speed up diagnosis, but can only detect limited mutations. Whole genome sequencing (WGS) of culture isolates can generate a complete genetic drug resistance profile, but is delayed by the initial culture step. We previously successfully achieved WGS directly from sputum using targeted enrichment. CASE REPORT: A 29-year-old Nigerian lady was diagnosed with tuberculosis...
July 14, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28716278/single-step-blood-direct-pcr-a-robust-and-rapid-method-to-diagnose-triplet-repeat-disorders
#14
Inder Singh, Vishnu Swarup, Sunil Shakya, Vinay Goyal, Mohammed Faruq, Achal Kumar Srivastava
OBJECTIVE: DNA extraction prior to polymerase chain reaction (PCR) amplification in genetic diagnoses of triplet repeat disorders (TRDs) is tedious and labour-intensive and has the limitations of sample contamination with foreign DNA, including that from preceding samples. Therefore, we aimed to develop a rapid, robust, and cost-effective method for expeditious genetic investigation of TRDs from whole blood as a DNA template. METHODS: Peripheral blood samples were collected from 70 clinically suspected patients of progressive ataxia...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28716113/whole-metagenome-profiles-of-particulates-collected-from-the-international-space-station
#15
Nicholas A Be, Aram Avila-Herrera, Jonathan E Allen, Nitin Singh, Aleksandra Checinska Sielaff, Crystal Jaing, Kasthuri Venkateswaran
BACKGROUND: The built environment of the International Space Station (ISS) is a highly specialized space in terms of both physical characteristics and habitation requirements. It is unique with respect to conditions of microgravity, exposure to space radiation, and increased carbon dioxide concentrations. Additionally, astronauts inhabit a large proportion of this environment. The microbial composition of ISS particulates has been reported; however, its functional genomics, which are pertinent due to potential impact of its constituents on human health and operational mission success, are not yet characterized...
July 17, 2017: Microbiome
https://www.readbyqxmd.com/read/28715793/monitoring-in-vivo-metabolic-flux-with-a-designed-whole-cell-metabolite-biosensor-of-shikimic-acid
#16
Heng Li, Chaoning Liang, Wei Chen, Jian-Ming Jin, Shuang-Yan Tang, Yong Tao
Knowledge of intracellular metabolite levels is important for the understanding of metabolic flux distributions. Whole-cell biosensors of key metabolites are ideal for the monitoring of carbon flow in important metabolic pathways, thus guiding metabolic engineering for microbial improvement. However, lack of biosensors for metabolites of interests has limited their applications. In this study, a genetically encoded whole-cell biosensor specifically responding to shikimic acid has been developed by screening a site-saturation mutagenesis library of the binding pocket of a uric acid-responsive regulatory protein...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28715472/a-novel-isoform-of-il-33-revealed-by-screening-for-transposable-element-promoted-genes-in-human-colorectal-cancer
#17
Frances E Lock, Artem Babaian, Ying Zhang, Liane Gagnier, Sabrina Kuah, Antonia Weberling, Mohammad M Karimi, Dixie L Mager
Remnants of ancient transposable elements (TEs) are abundant in mammalian genomes. These sequences contain multiple regulatory motifs and hence are capable of influencing expression of host genes. TEs are known to be released from epigenetic repression and can become transcriptionally active in cancer. Such activation could also lead to lineage-inappropriate activation of oncogenes, as previously described in lymphomas. However, there are few reports of this mechanism occurring in non-blood cancers. Here, we re-analyzed whole transcriptome data from a large cohort of patients with colon cancer, compared to matched normal colon control samples, to detect genes or transcripts ectopically expressed through activation of TE promoters...
2017: PloS One
https://www.readbyqxmd.com/read/28715430/resequencing-and-variation-identification-of-whole-genome-of-the-japonica-rice-variety-longdao24-with-high-yield
#18
Shukun Jiang, Shichen Sun, Liangming Bai, Guohua Ding, Tongtong Wang, Tianshu Xia, Hui Jiang, Xijuan Zhang, Fengming Zhang
Japonica rice mainly distributes in north of China, which accounts for more than half of the total japonica rice cultivated area of China. High yield, good grain quality and early heading date were the main breeding traits and commercial property in this region. We performed re-sequencing and genome wide variation analysis of one typical northern japonica rice variety Longdao24 and its parents (Longdao5 and Jigeng83) using the Illumina sequencing technology. 53.17 G clean bases were generated and more than 96...
2017: PloS One
https://www.readbyqxmd.com/read/28715416/signatures-of-inflammation-and-impending-multiple-organ-dysfunction-in-the-hyperacute-phase-of-trauma-a-prospective-cohort-study
#19
Claudia P Cabrera, Joanna Manson, Joanna M Shepherd, Hew D Torrance, David Watson, M Paula Longhi, Mimoza Hoti, Minal B Patel, Michael O'Dwyer, Sussan Nourshargh, Daniel J Pennington, Michael R Barnes, Karim Brohi
BACKGROUND: Severe trauma induces a widespread response of the immune system. This "genomic storm" can lead to poor outcomes, including Multiple Organ Dysfunction Syndrome (MODS). MODS carries a high mortality and morbidity rate and adversely affects long-term health outcomes. Contemporary management of MODS is entirely supportive, and no specific therapeutics have been shown to be effective in reducing incidence or severity. The pathogenesis of MODS remains unclear, and several models are proposed, such as excessive inflammation, a second-hit insult, or an imbalance between pro- and anti-inflammatory pathways...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28715335/evolutionary-model-for-the-statistical-divergence-of-paralogous-and-orthologous-gene-pairs-generated-by-whole-genome-duplication-and-speciation
#20
Yue Zhang, Chunfang Zheng, David Sankoff
We outline a principled approach to the analysis of duplicate gene similarity distributions, based on a model integrating sequence divergence and the process of fractionation of duplicate genes resulting from whole genome duplication (WGD). This model allows us predict duplicate gene similarity distributions for series of two or three WGD, for whole genome triplication followed by a WGD, and for triplication, followed by speciation, followed by WGD. We calculate the probabilities of all possible fates of a gene pair as its two members proliferate or are lost, predicting the number of surviving pairs from each event...
July 14, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
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