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https://www.readbyqxmd.com/read/29457878/genetic-determinants-of-heart-failure-facts-and-numbers
#1
EDITORIAL
Frauke S Czepluch, Bernd Wollnik, Gerd Hasenfuß
The relevance of gene mutations leading to heart diseases and hence heart failure has become evident. The risk for and the course of heart failure depends on genomic variants and mutations underlying the so-called genetic predisposition. Genetic contribution to heart failure is highly heterogenous and complex. For any patient with a likely inherited heart failure syndrome, genetic counselling is recommended and important. In the last few years, novel sequencing technologies (named next-generation sequencing - NGS) have dramatically improved the availability of molecular testing, the efficiency of genetic analyses, and moreover reduced the cost for genetic testing...
February 19, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29456732/two-protein-coding-genes-act-as-a-novel-clinical-signature-to-predict-prognosis-in-patients-with-ovarian-serous-cystadenocarcinoma
#2
Jue Zhang, Meng Xu, Han Gao, Jin-Chen Guo, Yu-Lin Guo, Miao Zou, Xu-Feng Wu
Ovarian cancer is the seventh most common type of cancer and the eighth most common cause of cancer-associated mortality among women. A number of studies have hypothesized that the expression status of certain genes may be used to predict prognosis in ovarian cancer. In the present study, the RNA expression data from next-generation sequencing and the clinical information of 413 patients from The Cancer Genome Atlas dataset was downloaded to identify the association between gene-expression level and the survival time of the patients with ovarian serous cystadenocarcinoma...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456554/compound-heterozygous-variants-in-the-coiled-coil-domain-containing-40-gene-in-a-chinese-family-with-primary-ciliary-dyskinesia-cause-extreme-phenotypic-diversity-in-cilia-ultrastructure
#3
Lin Yang, Santasree Banerjee, Jie Cao, Xiaohong Bai, Zhijun Peng, Haixia Chen, Hui Huang, Peng Han, Shunyu Feng, Na Yi, Xueru Song, Jing Wu
Purpose: Primary ciliary dyskinesia (PCD) is a rare genetic disorder manifested with recurrent infections of respiratory tract and infertility. Mutations in more than 20 genes including the Coiled-Coil Domain Containing 40 ( CCDC40 ) gene are associated with PCD. A Chinese proband with a clinical diagnosis of PCD was analyzed for mutations in these genes to identify the genetic basis of the disease in the family. The proband showed altered mucociliary clearance of the airways, various degree of hyperemia and edema of the mucous membrane, left/right body asymmetry, infertility and ultrastructural abnormality of cilia in both sperm and bronchioles...
2018: Frontiers in Genetics
https://www.readbyqxmd.com/read/29456477/dual-diagnosis-of-ellis-van-creveld-syndrome-and-hearing-loss-in-a-consanguineous-family
#4
Barbara Vona, Reza Maroofian, Geetu Mendiratta, Matthew Croken, Siwu Peng, Xiaoqian Ye, Jamileh Rezazadeh, Paulina Bahena, Caroline Lekszas, Thomas Haaf, Lisa Edelmann, Lisong Shi
Multilocus analysis of rare or genetically heterogeneous diseases is a distinct advantage of next-generation sequencing (NGS) over conventional single-gene investigations. Recent studies have begun to uncover an under-recognized prevalence of dual molecular diagnoses in patients with a "blended" phenotype that is the result of 2 clinical diagnoses involving 2 separate genetic loci. This blended phenotype could be mistakenly interpreted as a novel clinical extension of a single-gene disorder. In this study, we ascertained a proband from a large consanguineous Iranian family who manifests postlingual, progressive, moderate hearing loss in addition to suspected Ellis-van Creveld syndrome phenotype...
December 2017: Molecular Syndromology
https://www.readbyqxmd.com/read/29456407/analysis-of-hepatitis-b-virus-pres1-variability-and-prevalence-of-the-rs2296651-polymorphism-in-a-spanish-population
#5
Rosario Casillas, David Tabernero, Josep Gregori, Irene Belmonte, Maria Francesca Cortese, Carolina González, Mar Riveiro-Barciela, Rosa Maria López, Josep Quer, Rafael Esteban, Maria Buti, Francisco Rodríguez-Frías
AIM: To determine the variability/conservation of the domain of hepatitis B virus (HBV) preS1 region that interacts with sodium-taurocholate cotransporting polypeptide (hereafter, NTCP-interacting domain) and the prevalence of the rs2296651 polymorphism (S267F, NTCP variant) in a Spanish population. METHODS: Serum samples from 246 individuals were included and divided into 3 groups: patients with chronic HBV infection (CHB) ( n = 41, 73% Caucasians), patients with resolved HBV infection ( n = 100, 100% Caucasians) and an HBV-uninfected control group ( n = 105, 100% Caucasians)...
February 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29455859/heterozygous-mutations-in-oas1-cause-infantile-onset-pulmonary-alveolar-proteinosis-with-hypogammaglobulinemia
#6
Kazutoshi Cho, Masafumi Yamada, Kazunaga Agematsu, Hirokazu Kanegane, Noriko Miyake, Masahiro Ueki, Takuma Akimoto, Norimoto Kobayashi, Satoru Ikemoto, Mishie Tanino, Atsushi Fujita, Itaru Hayasaka, Satoshi Miyamoto, Mari Tanaka-Kubota, Koh Nakata, Masaaki Shiina, Kazuhiro Ogata, Hisanori Minakami, Naomichi Matsumoto, Tadashi Ariga
Pulmonary alveolar proteinosis (PAP) is characterized by accumulation of a surfactant-like substance in alveolar spaces and hypoxemic respiratory failure. Genetic PAP (GPAP) is caused by mutations in genes encoding surfactant proteins or genes encoding a surfactant phospholipid transporter in alveolar type II epithelial cells. GPAP is also caused by mutations in genes whose products are implicated in surfactant catabolism in alveolar macrophages (AMs). We performed whole-exome sequence analysis in a family affected by infantile-onset PAP with hypogammaglobulinemia without causative mutations in genes associated with PAP: SFTPB, SFTPC, ABCA3, CSF2RA, CSF2RB, and GATA2...
February 12, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29455571/genetic-variation-of-the-kinases-that-phosphorylate-tenofovir-and-emtricitabine-in-peripheral-blood-mononuclear-cells
#7
Dominique Figueroa, Erin Madeen, Joseph Tillotson, Paul Richardson, Leslie Cottle, Marybeth McCauley, Raphael Landovitz, Adriana Andrade, Craig W Hendrix, Kenneth H Mayer, T J Wilkin, Roy Gulick, Namandjé N Bumpus
Tenofovir (TFV) disoproxil fumarate and emtricitabine (FTC) are used in combination for HIV treatment and pre-exposure prophylaxis (PrEP). Tenofovir disoproxil fumarate is a prodrug that undergoes diester hydrolysis to TFV. FTC and TFV are nucleoside/nucleotide reverse transcriptase inhibitors that upon phosphorylation to nucleotide triphosphate analogs competitively inhibit HIV reverse transcriptase. We previously demonstrated that adenylate kinase 2, pyruvate kinase, muscle and pyruvate kinase, liver and red blood cell phosphorylate TFV in peripheral blood mononuclear cells (PBMC)...
February 17, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29455315/mitogenomes-of-two-neotropical-bird-species-and-the-multiple-independent-origin-of-mitochondrial-gene-orders-in-passeriformes
#8
Renato Caparroz, Amanda V Rocha, Gustavo S Cabanne, Pablo Tubaro, Alexandre Aleixo, Emily M Lemmon, Alan R Lemmon
At least four mitogenome arrangements occur in Passeriformes and differences among them are derived from an initial tandem duplication involving a segment containing the control region (CR), followed by loss or reduction of some parts of this segment. However, it is still unclear how often duplication events have occurred in this bird order. In this study, the mitogenomes from two species of Neotropical passerines (Sicalis olivascens and Lepidocolaptes angustirostris) with different gene arrangements were first determined...
February 17, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29455311/accelerated-molecular-breeding-of-a-novel-p-tgms-line-with-broad-spectrum-resistance-to-rice-blast-and-bacterial-blight-in-two-line-hybrid-rice
#9
Jiaming Mi, Dabing Yang, Yi Chen, Jiefeng Jiang, Haipeng Mou, Junbin Huang, Yidan Ouyang, Tongmin Mou
BACKGROUND: Breeding two-line hybrid rice with disease resistance is an effective approach to stabilize rice yield in commercial rice production of China. RESULTS: We improved the blast and bacterial blight resistance of Guangzhan63-4S, an elite photoperiod- and thermo-sensitive male sterile (P/TGMS) line widely used in two-line hybrid rice, by introducing the R genes Pi2 and Xa7 conferring resistance to rice blast and bacterial blight, respectively. Through the backcrossing and gene pyramiding breeding coupled with molecular marker-assisted selection, a new P/TGMS line Hua1228S carrying Pi2, Xa7, and tms5 was developed...
February 17, 2018: Rice
https://www.readbyqxmd.com/read/29455155/newly-designed-11-gene-panel-reveals-first-case-of-hereditary-amyloidosis-captured-by-massive-parallel-sequencing
#10
Zuzana Chyra Kufova, Tereza Sevcikova, Jaroslav Januska, Petr Vojta, Arpad Boday, Pavla Vanickova, Jana Filipova, Katerina Growkova, Tomas Jelinek, Marian Hajduch, Roman Hajek
AIMS: Amyloidosis is caused by deposition of abnormal protein fibrils, leading to damage of organ function. Hereditary amyloidosis represents a monogenic disease caused by germline mutations in 11 amyloidogenic precursor protein genes. One of the important but non-specific symptoms of amyloidosis is hypertrophic cardiomyopathy. Diagnostics of hereditary amyloidosis is complicated and the real cause can remain overlooked. We aimed to design hereditary amyloidosis gene panel and to introduce new next-generation sequencing (NGS) approach to investigate hereditary amyloidosis in a cohort of patients with hypertrophic cardiomyopathy of unknown significance...
February 17, 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29454794/hcv-genotype-6a-escape-from-and-resistance-to-velpatasvir-pibrentasvir-and-sofosbuvir-in-robust-infectious-cell-culture-models
#11
Long V Pham, Santseharay Ramirez, Judith M Gottwein, Ulrik Fahnøe, Yi-Ping Li, Jannie Pedersen, Jens Bukh
BACKGROUND & AIMS: Chronic liver diseases caused by hepatitis C virus (HCV) genotype 6 are prevalent in Asia, and millions of people require treatment with direct-acting antiviral regimens, such as NS5A inhibitor velpatasvir combined with the NS5B polymerase inhibitor sofosbuvir. We developed infectious cell culture models of HCV genotype 6a infection to study the effects of these inhibitors and the development of resistance. METHODS: The consensus sequences of prototype strains HK2 (MG717925) and HK6a (MG717928), originating from serum of patients with chronic HCV infection, were determined by Sanger sequencing of genomes amplified by reverse transcription-PCR...
February 15, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29454663/novel-pla2g6-mutations-and-clinical-heterogeneity-in-chinese-cases-with-phospholipase-a2-associated-neurodegeneration
#12
Yi-Jun Chen, Yu-Chao Chen, Hai-Lin Dong, Li-Xi Li, Wang Ni, Hong-Fu Li, Zhi-Ying Wu
INTRODUCTION: Phospholipase A2-associated neurodegeneration (PLAN) is an autosomal recessive movement disorder with abnormal iron deposition in basal ganglia, substantial nigra and adjacent areas, and cerebellar atrophy. It is caused by PLA2G6 mutations and comprises three phenotypes. We aimed to investigate genetic mutations in patients with predominantly extrapyramidal symptoms. METHODS: Eighteen Chinese patients with early onset of extrapyramidal symptoms were identified and underwent targeted next-generation sequencing, followed by Sanger sequencing...
February 9, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29454346/agrobacterium-mediated-and-electroporation-mediated-transformation-of-chlamydomonas-reinhardtii-a-comparative-study
#13
Paola Mini, Olivia Costantina Demurtas, Silvia Valentini, Patrizia Pallara, Giuseppe Aprea, Paola Ferrante, Giovanni Giuliano
BACKGROUND: Chlamydomonas reinhardtii is an unicellular green alga used for functional genomics studies and heterologous protein expression. A major hindrance in these studies is the low level and instability of expression of nuclear transgenes, due to their rearrangement and/or silencing over time. RESULTS: We constructed dedicated vectors for Agrobacterium-mediated transformation carrying, within the T-DNA borders, the Paromomycin (Paro) selectable marker and an expression cassette containing the Luciferase (Luc) reporter gene...
February 17, 2018: BMC Biotechnology
https://www.readbyqxmd.com/read/29454261/frequency-of-somatic-tp53-mutations-in-combination-with-known-pathogenic-mutations-in-colon-adenocarcinoma-non-small-cell-lung-carcinoma-and-gliomas-as-identified-by-next-generation-sequencing
#14
Zahra Shajani-Yi, Francine B de Abreu, Jason D Peterson, Gregory J Tsongalis
The tumor suppressor gene TP53 is the most frequently mutated gene in human cancer. It encodes p53, a DNA-binding transcription factor that regulates multiple genes involved in DNA repair, metabolism, cell cycle arrest, apoptosis, and senescence. TP53 is associated with human cancer by mutations that lead to a loss of wild-type p53 function as well as mutations that confer alternate oncogenic functions that enable them to promote invasion, metastasis, proliferation, and cell survival. Identifying the discrete TP53 mutations in tumor cells may help direct therapies that are more effective...
February 13, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29453630/somatic-brca1-mutations-in-clinically-sporadic-breast-cancer-with-medullary-histological-features
#15
Markus Rechsteiner, Konstantin Dedes, Daniel Fink, Bernhard Pestalozzi, Bettina Sobottka, Holger Moch, Peter Wild, Zsuzsanna Varga
BACKGROUND: The role of somatic BRCA1/2 gene mutations in breast cancer is getting increasing attention in view of hereditary disease. The medullary phenotype and triple negative intrinsic subtypes are often, but not exclusively encountered in BRCA1 germline mutated breast cancer, whilst for BRCA2, no association to specific histological features are known. In this study, we addressed the relationship between morphological medullary phenotype and BRCA1/2 somatic mutations in breast cancer without known positive family anamnesis...
February 17, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29453510/next-generation-metabolic-screening-targeted-and-untargeted-metabolomics-for-the-diagnosis-of-inborn-errors-of-metabolism-in-individual-patients
#16
Karlien L M Coene, Leo A J Kluijtmans, Ed van der Heeft, Udo F H Engelke, Siebolt de Boer, Brechtje Hoegen, Hanneke J T Kwast, Maartje van de Vorst, Marleen C D G Huigen, Irene M L W Keularts, Michiel F Schreuder, Clara D M van Karnebeek, Saskia B Wortmann, Maaike C de Vries, Mirian C H Janssen, Christian Gilissen, Jasper Engel, Ron A Wevers
The implementation of whole-exome sequencing in clinical diagnostics has generated a need for functional evaluation of genetic variants. In the field of inborn errors of metabolism (IEM), a diverse spectrum of targeted biochemical assays is employed to analyze a limited amount of metabolites. We now present a single-platform, high-resolution liquid chromatography quadrupole time of flight (LC-QTOF) method that can be applied for holistic metabolic profiling in plasma of individual IEM-suspected patients. This method, which we termed "next-generation metabolic screening" (NGMS), can detect >10,000 features in each sample...
February 16, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29452859/evaluation-of-liquid-biopsies-for-detection-of-emerging-mutated-genes-in-metastatic-colorectal-cancer
#17
Hiroyasu Furuki, Takeshi Yamada, Goro Takahashi, Takuma Iwai, Michihiro Koizumi, Seiichi Shinji, Yasuyuki Yokoyama, Kohki Takeda, Nobuhiko Taniai, Eiji Uchida
BACKGROUND: Detection of gene mutations is important for planning molecular targeted therapy. Although most gene mutations are concordant between primary colon cancers and their liver metastases, new mutations can emerge in metastases. The liquid biopsy is a newly developed, gene analytic method to detect mutations in metastatic tumors. In this prospective study, we evaluated the applicability of liquid biopsies in the detection of mutations in primary and metastatic tumors. METHODS: We included 22 patients with liver metastases from colorectal cancer and extracted DNA from primary colorectal tumors, metastatic liver tumors, and peripheral blood (liquid biopsy)...
February 2, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29451897/selective-identification-of-somatic-mutations-in-pancreatic-cancer-cells-through-a-combination-of-next-generation-sequencing-of-plasma-dna-using-molecular-barcodes-and-a-bioinformatic-variant-filter
#18
Yoji Kukita, Kazuyoshi Ohkawa, Ryoji Takada, Hiroyuki Uehara, Kazuhiro Katayama, Kikuya Kato
The accuracy of next-generation sequencing (NGS) for detecting tumor-specific mutations in plasma DNA is hindered by errors introduced during PCR/sequencing, base substitutions caused by DNA damage, and pre-existing mutations in normal cells that are present at a low frequency. Here, we performed NGS of genes related to pancreatic cancer (comprising 2.8 kb of genomic DNA) in plasma DNA (average 4.5 ng) using molecular barcodes. The average number of sequenced molecules was 900, and the sequencing depth per molecule was 100 or more...
2018: PloS One
https://www.readbyqxmd.com/read/29451896/hypomyelinating-disorders-in-china-the-clinical-and-genetic-heterogeneity-in-119-patients
#19
Haoran Ji, Dongxiao Li, Ye Wu, Quanli Zhang, Qiang Gu, Han Xie, Taoyun Ji, Huifang Wang, Lu Zhao, Haijuan Zhao, Yanling Yang, Hongchun Feng, Hui Xiong, Jinhua Ji, Zhixian Yang, Liping Kou, Ming Li, Xinhua Bao, Xingzhi Chang, Yuehua Zhang, Li Li, Huijuan Li, Zhengping Niu, Xiru Wu, Jiangxi Xiao, Yuwu Jiang, Jingmin Wang
OBJECTIVE: Hypomyelinating disorders are a group of clinically and genetically heterogeneous diseases characterized by neurological deterioration with hypomyelination visible on brain MRI scans. This study was aimed to clarify the clinical and genetic features of HMDs in Chinese population. METHODS: 119 patients with hypomyelinating disorders in Chinese population were enrolled and evaluated based on their history, clinical manifestation, laboratory examinations, series of brain MRI with follow-up, genetic etiological tests including chromosomal analysis, multiplex ligation probe amplification, Sanger sequencing, targeted enrichment-based next-generation sequencing and whole exome sequencing...
2018: PloS One
https://www.readbyqxmd.com/read/29451882/de-novo-transcriptomic-analysis-of-leaf-and-fruit-tissue-of-cornus-officinalis-using-illumina-platform
#20
Dian-Yun Hou, Lin-Chun Shi, Meng-Meng Yang, Jiong Li, Shuang Zhou, Hong-Xiao Zhang, Hua-Wei Xu
Cornus officinalis is one of the most widely used medicinal plants in China and other East Asian countries to cure diseases such as liver, kidney, cardiovascular diseases and frequent urination for thousands of years. It is a Level 3 protected species, and is one of the 42 national key protected wild species of animals and plants in China. However, the genetics and molecular biology of C. officinalis are poorly understood, which has hindered research on the molecular mechanism of its metabolism and utilization...
2018: PloS One
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