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High throughput sequencing

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https://www.readbyqxmd.com/read/29053735/characterization-of-the-first-knock-out-aldh7a1-zebrafish-model-for-pyridoxine-dependent-epilepsy-using-crispr-cas9-technology
#1
Nikita Zabinyakov, Garrett Bullivant, Feng Cao, Matilde Fernandez Ojeda, Zheng Ping Jia, Xiao-Yan Wen, James J Dowling, Gajja S Salomons, Saadet Mercimek-Andrews
Pyridoxine dependent epilepsy (PDE) is caused by likely pathogenic variants in ALDH7A1 (PDE-ALDH7A1) and inherited autosomal recessively. Neurotoxic alpha-amino adipic semialdehyde (alpha-AASA), piperideine 6-carboxylate and pipecolic acid accumulate in body fluids. Neonatal or infantile onset seizures refractory to anti-epileptic medications are clinical features. Treatment with pyridoxine, arginine and lysine-restricted diet does not normalize neurodevelopmental outcome or accumulation of neurotoxic metabolites...
2017: PloS One
https://www.readbyqxmd.com/read/29053596/elucidating-the-role-of-host-long-non-coding-rna-during-viral-infection-challenges-and-paths-forward
#2
REVIEW
David J Lemler, Hayden N Brochu, Fang Yang, Erin A Harrell, Xinxia Peng
Research over the past decade has clearly shown that long non-coding RNAs (lncRNAs) are functional. Many lncRNAs can be related to immunity and the host response to viral infection, but their specific functions remain largely elusive. The vast majority of lncRNAs are annotated with extremely limited knowledge and tend to be expressed at low levels, making ad hoc experimentation difficult. Changes to lncRNA expression during infection can be systematically profiled using deep sequencing; however, this often produces an intractable number of candidate lncRNAs, leaving no clear path forward...
October 20, 2017: Vaccines
https://www.readbyqxmd.com/read/29052391/-research-on-bacteria-microecology-in-root-rot-rhizosphere-soil-of-coptis-chinensis-produced-in-shizhu-city
#3
Xu-Hong Song, Yu Wang, Long-Yun Li, Jun Tan
Illumina Hiseq 2500 high-throughput sequencing platform was used to study the bacteria richness and diversity, the soil enzyme activities, nutrients in unplanted soil, root-rot and healthy rhizophere soil of Coptis chinensis for deeply discussing the mechanism of the root-rot of C. chinensis. The high-throughput sequencing result showed that the artificial cultivation effected the bacteria community richness and diversity. The bacteria community richness in healthy and diseased rhizosphere soil showed significant lower than that of in unplanted soil (P<0...
April 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29052251/untranslated-parts-of-genes-interpreted-making-heads-or-tails-of-high-throughput-transcriptomic-data-via-computational-methods-computational-methods-to-discover-and-quantify-isoforms-with-alternative-untranslated-regions
#4
REVIEW
Krzysztof J Szkop, Irene Nobeli
In this review we highlight the importance of defining the untranslated parts of transcripts, and present a number of computational approaches for the discovery and quantification of alternative transcription start and poly-adenylation events in high-throughput transcriptomic data. The fate of eukaryotic transcripts is closely linked to their untranslated regions, which are determined by the position at which transcription starts and ends at a genomic locus. Although the extent of alternative transcription starts and alternative poly-adenylation sites has been revealed by sequencing methods focused on the ends of transcripts, the application of these methods is not yet widely adopted by the community...
October 20, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/29052232/different-functional-genes-of-upper-airway-microbiome-associated-with-natural-course-of-childhood-asthma
#5
Bong-Soo Kim, Eun Lee, Min-Jung Lee, Mi-Jin Kang, Jisun Yoon, Hyun-Ju Cho, Jaehyun Park, Sungho Won, So Yeon Lee, Soo-Jong Hong
BACKGROUND: Microbial colonization of the airway plays a role in the pathogenesis of asthma; however, the effect of the upper airway microbiome on childhood asthma is not fully understood. We analyzed the metagenome of airway microbiome to understand the associated role of upper airway microbiome with the natural course of childhood asthma. METHODS: Nasopharyngeal swabs were collected from children with asthma, those in asthma remission, and control groups. High-throughput sequencing was used to examine the structure and functional dynamics of the airway microbiome with respect to asthma phenotypes...
October 20, 2017: Allergy
https://www.readbyqxmd.com/read/29052198/de-novo-identification-of-srna-loci-and-non-coding-rnas-by-high-throughput-sequencing
#6
Alice Lunardon, Cristian Forestan, Silvia Farinati, Serena Varotto
Non-coding RNA transcripts, such as long non-coding RNAs, miRNAs, siRNAs, and transposon-originating transcripts, are involved in the regulation of RNA stability, protein translation, and/or the modulation of chromatin states. RNA-Seq can be used to catalog this diversity of novel transcripts and a joint analysis of these transcriptomic data can provide useful insights into epigenetic regulation of dynamic responses such as the stress response, which may not be deciphered from individual analysis of single transcript categories...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29052193/identification-of-open-chromatin-regions-in-plant-genomes-using-atac-seq
#7
Marko Bajic, Kelsey A Maher, Roger B Deal
Identifying and characterizing highly accessible chromatin regions assists in determining the location of genomic regulatory elements and understanding transcriptional regulation. In this chapter, we describe an approach to map accessible chromatin features in plants using the Assay for Transposase-Accessible Chromatin, combined with high-throughput sequencing (ATAC-seq), which was originally developed for cultured animal cells. This technique utilizes a hyperactive Tn5 transposase to cause DNA cleavage and simultaneous insertion of sequencing adapters into open chromatin regions of the input nuclei...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29052192/profiling-nucleosome-occupancy-by-mnase-seq-experimental-protocol-and-computational-analysis
#8
Alice Pajoro, Jose M Muiño, Gerco C Angenent, Kerstin Kaufmann
Nucleosomes are the basic repeating units of eukaryotic chromatin. They play important roles in chromatin compaction and gene regulation. Therefore, it is important to profile the in vivo locations of nucleosomes in the genome. Here we illustrate how to profile nucleosome occupancy at genome-wide scale using micrococcal nuclease (MNase) digestion combined with high throughput Illumina sequencing (MNase-seq). Nucleosome-associated DNA is relatively insensitive to digestion by micrococcal nuclease (MNase). Upon mild MNase treatment, the undigested nucleosomal DNA can be purified and sequenced allowing a precise localization of in vivo nucleosomes at a genome-wide level...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29052185/identification-of-differentially-methylated-regions-in-the-genome-of-arabidopsis-thaliana
#9
Kamal Kishore, Mattia Pelizzola
DNA methylation profiling in the epigenome of Arabidopsis thaliana (Arabidopsis) has provided great insights in the role of this epigenetic mark for the regulation of transcription in plants, and is often based on high-throughput sequencing. The analysis of these data involves a series of steps including quality checks, filtering, alignment, identification of methyl-cytosines, and the identification of differentially methylated regions. This chapter outlines the computational methodology required to profile genome-wide differential methylation patterns based on publicly available Arabidopsis base-resolution bisulfite sequencing data...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29052132/current-progress-in-ebv-associated-b-cell-lymphomas
#10
Yonggang Pei, Alexandria E Lewis, Erle S Robertson
Epstein-Barr virus (EBV) was the first human tumor virus discovered more than 50 years ago. EBV-associated lymphomagenesis is still a significant viral-associated disease as it involves a diverse range of pathologies, especially B-cell lymphomas. Recent development of high-throughput next-generation sequencing technologies and in vivo mouse models have significantly promoted our understanding of the fundamental molecular mechanisms which drive these cancers and allowed for the development of therapeutic intervention strategies...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29051614/genome-wide-identification-of-micrornas-responsive-to-ectropis-oblique-feeding-in-tea-plant-camellia-sinensis-l
#11
Anburaj Jeyaraj, Shengrui Liu, Xiao Zhang, Ran Zhang, Mingzhu Shangguan, Chaoling Wei
The tea plant (Camellia sinensis L.) is vulnerable to the geometrid Ectropis oblique; although microRNAs (miRNAs) are important for plant growth, development and stress response, the function of miRNAs in the response of C. sinensis to stress from E. oblique is unclear. To identify E. oblique stress-responsive miRNAs and their target genes in tea plant, three small RNA libraries were constructed from leaves subjected to mechanical wounding (MW), geometrid attack (GA) and from healthy control (CK) leaves. Using high-throughput sequencing, 130 known miRNAs and 512 novel miRNAs were identified; of these, differential expression under GA stress was observed for 36 known and 139 novel miRNAs...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29050697/how-do-we-measure-mrd-in-all-and-how-should-measurements-affect-decisions-re-treatment-and-prognosis
#12
REVIEW
Xueyan Chen, Brent L Wood
Minimal residual disease (MRD) is the most significant independent prognostic factor in acute lymphocytic leukemia (ALL). Monitoring MRD using sensitive techniques, including multiparametric flow cytometry (MFC) and quantitative polymerase chain reaction (qPCR)-based methods, has improved the assessment of treatment response and risk stratification for clinical management. New molecular methods, such as high-throughput next-generation sequencing (NGS), have evolved into routine laboratory tools to improve the sensitivity and specificity of MRD detection...
September 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/29049400/spoligotyping-and-whole-genome-sequencing-analysis-of-lineage-1-strains-of-mycobacterium-tuberculosis-in-da-nang-vietnam
#13
Minako Hijikata, Naoto Keicho, Le Van Duc, Shinji Maeda, Nguyen Thi Le Hang, Ikumi Matsushita, Seiya Kato
BACKGROUND: Spacer oligonucleotide typing (spoligotyping), a widely used, classical genotyping method for Mycobacterium tuberculosis complex (MTBC), is a PCR-based dot-blot hybridization technique to detect the genetic diversity of the direct repeat (DR) region. Of the seven major MTBC lineages in the world, lineage 1 (Indo-Oceanic) mostly corresponds to the East African-Indian (EAI) spoligotype family in East Africa and Southeast Asia. OBJECTIVES: We investigated the genomic features of Vietnamese lineage 1 strains, comparing spoligotype patterns using whole-genome sequencing (WGS) data...
2017: PloS One
https://www.readbyqxmd.com/read/29049349/effects-of-stand-age-and-soil-properties-on-soil-bacterial-and-fungal-community-composition-in-chinese-pine-plantations-on-the-loess-plateau
#14
Peng Dang, Xuan Yu, Hien Le, Jinliang Liu, Zhen Shen, Zhong Zhao
The effects of Chinese pine (Pinus tabuliformis) on soil variables after afforestation have been established, but microbial community changes still need to be explored. Using high-throughput sequencing technology, we analyzed bacterial and fungal community composition and diversity in soils from three stands of different-aged, designated 12-year-old (PF1), 29-year-old (PF2), and 53-year-old (PF3), on a Chinese pine plantation and from a natural secondary forest (NSF) stand that was almost 80 years old. Abandoned farmland (BL) was also analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/29049343/a-sequential-monte-carlo-approach-to-gene-expression-deconvolution
#15
Oyetunji E Ogundijo, Xiaodong Wang
High-throughput gene expression data are often obtained from pure or complex (heterogeneous) biological samples. In the latter case, data obtained are a mixture of different cell types and the heterogeneity imposes some difficulties in the analysis of such data. In order to make conclusions on gene expresssion data obtained from heterogeneous samples, methods such as microdissection and flow cytometry have been employed to physically separate the constituting cell types. However, these manual approaches are time consuming when measuring the responses of multiple cell types simultaneously...
2017: PloS One
https://www.readbyqxmd.com/read/29048876/microchemical-plant-in-a-liquid-droplet-plasmonic-liquid-marble-for-sequential-reactions-and-attomole-detection-of-toxin-at-microliter-scale
#16
Xuemei Han, Charlynn Sher Lin Koh, Hiang Kwee Lee, Wee Shern Chew, Xing Yi Ling
Miniaturizing the continuous multi-step operations of a factory into a microchemical plant offers a safe and cost-effective approach to promote high-throughput screening in drug development and enforcement of industrial/environment safety. While particle-assembled microdroplets in the form of liquid marble are ideal as microchemical plant, these platforms are mainly restricted to single-step reactions and limited to ex-situ reaction monitoring. Herein, we utilize plasmonic liquid marble (PLM), formed by encapsulating liquid droplet with Ag nanocubes, to address these issues and demonstrate it as an ideal microchemical plant to conduct reaction-and-detection sequences on-demand in a non-disruptive manner...
October 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29048736/novel-recessive-pdzd7-biallelic-mutations-in-two-chinese-families-with-non-syndromic-hearing-loss
#17
Jing Guan, Hongyang Wang, Lan Lan, Li Wang, Ju Yang, Linyi Xie, Zifang Yin, Wenping Xiong, Lidong Zhao, Dayong Wang, Qiuju Wang
Autosomal recessive non-syndromic hearing loss (ARNSHL) is a highly heterogeneous genetic condition. PDZD7 has emerged as a new genetic etiology of ARNSHL. Biallelic mutations in the PDZD7 gene have been reported in two German families, four Iranian families, and a Pakistani family with ARNSHL. The effect of PDZD7 on ARNSHL in other population has yet to be elucidated. Two Chinese ARNSHL families, each of which had two affected siblings, were included in this study. The families underwent target region capture and high-throughput sequencing to analyze the exonic, splice-site, and intronic sequences of 128 genes...
October 19, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29048533/parallel-sequencing-lives-or-what-makes-large-sequencing-projects-successful
#18
Javier Quilez, Enrique Vidal, François Le Dily, François Serra, Yasmina Cuartero, Ralph Stadhouders, Thomas Graf, Marc A Marti-Renom, Miguel Beato, Guillaume Filion
T47D_rep2 and b1913e6c1_51720e9cf were two Hi-C samples. They were born and processed at the same time, yet their fates were very different. The life of b1913e6c1_51720e9cf was simple and fruitful, while that of T47D_rep2 was full of accidents and sorrow. At the heart of these differences lies the fact that b1913e6c1_51720e9cf was born under a lab culture of Documentation, Automation, Traceability, Autonomy and compliance with the FAIR Principles. Their lives are a lesson for those who wish to embark on the journey of managing high throughput sequencing data...
October 18, 2017: GigaScience
https://www.readbyqxmd.com/read/29048467/identification-of-copy-number-variations-and-translocations-in-cancer-cells-from-hi-c-data
#19
Abhijit Chakraborty, Ferhat Ay
Motivation: Eukaryotic chromosomes adapt a complex and highly dynamic three-dimensional (3D) structure, which profoundly affects different cellular functions and outcomes including changes in epigenetic landscape and in gene expression. Making the scenario even more complex, cancer cells harbor chromosomal abnormalities (e.g., copy number variations (CNVs) and translocations) altering their genomes both at the sequence level and at the level of 3D organization. High-throughput chromosome conformation capture techniques (e...
October 18, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29048459/an-efficient-large-scale-survey-of-hepatitis-c-viremia-in-the-democratic-republic-of-the-congo-using-dried-blood-spots
#20
Jonathan B Parr, Evans K Lodge, Vera Holzmayer, Jacques Pepin, Eric H Frost, Michael W Fried, David R McGivern, Stanley M Lemon, Corinna Keeler, Michael Emch, Kashamuka Mwandagalirwa, Antoinette Tshefu, Franck Fwamba, Jérémie Muwonga, Steven R Meshnick, Gavin Cloherty
Background: Efficient viral load testing is needed for hepatitis C (HCV) surveillance and diagnosis. HCV viral load testing using dried blood spots (DBSs), made with a single drop of finger-prick whole blood on filter paper, is a promising alternative to traditional serum- or plasma-based approaches. Methods: We adapted the Abbott Molecular m2000 instrument for high-throughput HCV viremia testing using DBSs with simple specimen processing and applied these methods to estimate the national burden of infection in the Democratic Republic of the Congo (DRC)...
October 18, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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