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https://www.readbyqxmd.com/read/27913979/genetic-diversity-of-the-genotype-vii-newcastle-disease-virus-identification-of-a-novel-viij-sub-genotype
#1
Cong Xue, Yanlong Cong, Renfu Yin, Yixue Sun, Chan Ding, Shengqing Yu, Xiufan Liu, Shunlin Hu, Jing Qian, Qianliang Yuan, Mingxi Yang, Chunfeng Wang, Zhuang Ding
Newcastle disease (ND) is a highly contagious disease of poultry caused by Newcastle disease virus (NDV). Multiple genotypes of NDV have been circulating worldwide and NDV is continuously evolving, resulting into more diversity. Of multiple viral genotypes, VII is particularly important given that it had been associated with most recent ND outbreaks worldwide. In this study, an epidemiological investigation performed in northeastern China during 2014-2015 showed that 11 genotype VII isolates amounted to 55 percent in a total number of NDV isolates...
December 2, 2016: Virus Genes
https://www.readbyqxmd.com/read/27913132/rapid-identification-of-candida-spp-frequently-involved-in-invasive-mycoses-by-using-flow-through-hybridization-and-gene-chip-fhgc-technology
#2
Chen Li, Xiurong Ding, Zhizhong Liu, Juanjuan Zhu
The incidence of invasive fungal infections in immunocompromised patients has increased in recent decades. Rapid and accurate identification of these pathogenic fungi is crucial for initiating a timely, safe, and effective antifungal therapy. Here we developed a microarray based on flow-through hybridization gene chip technology. The microarray was tested for its specificity using a panel of reference and blinded clinical isolates. The results proved that this microarray was highly discriminative, leading to the unequivocal identification of each species, including Candida famata and the highly related species Candida parapsilosis, Candida orthopsilosis, and Candida metapsilosis...
November 29, 2016: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27913098/succinyl-coa-synthetase-sucla2-deficiency-in-two-siblings-with-impaired-activity-of-other-mitochondrial-oxidative-enzymes-in-skeletal-muscle-without-mitochondrial-dna-depletion
#3
Xiaoping Huang, Jirair K Bedoyan, Didem Demirbas, David J Harris, Alexander Miron, Simone Edelheit, George Grahame, Suzanne D DeBrosse, Lee-Jun Wong, Charles L Hoppel, Douglas S Kerr, Irina Anselm, Gerard T Berry
Mutations in SUCLA2 result in succinyl-CoA ligase (ATP-forming) or succinyl-CoA synthetase (ADP-forming) (A-SCS) deficiency, a mitochondrial tricarboxylic acid cycle disorder. The phenotype associated with this gene defect is largely encephalomyopathy. We describe two siblings compound heterozygous for SUCLA2 mutations, c.985A>G (p.M329V) and c.920C>T (p.A307V), with parents confirmed as carriers of each mutation. We developed a new LC-MS/MS based enzyme assay to demonstrate the decreased SCS activity in the siblings with this unique genotype...
November 12, 2016: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/27912729/genomic-insights-from-whole-genome-sequencing-of-four-clonal-outbreak-campylobacter-jejuni-assessed-within-the-global-c-jejuni-population
#4
Clifford G Clark, Chrystal Berry, Matthew Walker, Aaron Petkau, Dillon O R Barker, Cai Guan, Aleisha Reimer, Eduardo N Taboada
BACKGROUND: Whole genome sequencing (WGS) is useful for determining clusters of human cases, investigating outbreaks, and defining the population genetics of bacteria. It also provides information about other aspects of bacterial biology, including classical typing results, virulence, and adaptive strategies of the organism. Cell culture invasion and protein expression patterns of four related multilocus sequence type 21 (ST21) C. jejuni isolates from a significant Canadian water-borne outbreak were previously associated with the presence of a CJIE1 prophage...
December 3, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27912236/prognostic-role-of-pten-gene-expression-in-breast-cancer-patients-from-north-east-iran
#5
Rahim Golmohammadi, Mohammad Hassan Rakhshani, Ali Reza Moslem, Akbar Pejhan
Background: PTEN protein is one of the most important tumour suppressor factors which is detectable by immunohistochemistry. The goal of the present study was to investigate the prognostic role of PTEN gene expression in breast cancer patients. Materials and Methods: This descriptive-analytical study was conducted on 100 breast cancer patients referred to Sabzevar hospitals in the north-east of Iran between 2010 and 2011, who were followed up to 2015. PTEN gene expression in tissue samples was determined using specific monoclonal antibodies and data were analyzed using Chi-square test and Fisher’s exact test...
January 9, 2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27910027/recurrent-cytogenetic-abnormalities-in-acute-myeloid-leukemia
#6
John J Yang, Tae Sung Park, Thomas S K Wan
The spectrum of chromosomal abnormality associated with leukemogenesis of acute myeloid leukemia (AML) is broad and heterogeneous when compared to chronic myeloid leukemia and other myeloid neoplasms. Recurrent chromosomal translocations such as t(8;21), t(15;17), and inv(16) are frequently detected, but hundreds of other uncommon chromosomal aberrations from AML also exist. This chapter discusses 22 chromosomal abnormalities that are common structural, numerical aberrations, and other important but infrequent (less than 1 %) translocations emphasized in the WHO classification...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27907901/serum-amh-levels-in-healthy-women-from-brca1-2-mutated-families-are-they-reduced
#7
Theodora C van Tilborg, Inge A P Derks-Smeets, Anna M E Bos, Jan C Oosterwijk, Ron J van Golde, Christine E de Die-Smulders, Lizet E van der Kolk, Wendy A G van Zelst-Stams, Maria E Velthuizen, Annemieke Hoek, Marinus J C Eijkemans, Joop S E Laven, Margreet G E M Ausems, Frank J M Broekmans
STUDY QUESTION: Do BRCA1/2 mutation carriers have a compromised ovarian reserve compared to proven non-carriers, based on serum anti-Müllerian hormone (AMH) levels? SUMMARY ANSWER: BRCA1/2 mutation carriers do not show a lower serum AMH level in comparison to proven non-carriers, after adjustment for potential confounders. WHAT IS KNOWN ALREADY: It has been suggested that the BRCA genes play a role in the process of ovarian reserve depletion, although previous studies have shown inconsistent results regarding the association between serum AMH levels and BRCA mutation status...
November 2016: Human Reproduction
https://www.readbyqxmd.com/read/27907206/intestinal-fluid-permeability-in-atlantic-salmon-salmo-salar-l-is-affected-by-dietary-protein-source
#8
Haibin Hu, Trond M Kortner, Karina Gajardo, Elvis Chikwati, John Tinsley, Åshild Krogdahl
In Atlantic salmon (Salmo salar L.), and also in other fish species, certain plant protein ingredients can increase fecal water content creating a diarrhea-like condition which may impair gut function and reduce fish growth. The present study aimed to strengthen understanding of the underlying mechanisms by observing effects of various alternative plant protein sources when replacing fish meal on expression of genes encoding proteins playing key roles in regulation of water transport across the mucosa of the distal intestine (DI)...
2016: PloS One
https://www.readbyqxmd.com/read/27907126/variability-in-the-sxt-gene-clusters-of-psp-toxin-producing-aphanizomenon-gracile-strains-from-norway-spain-germany-and-north-america
#9
Andreas Ballot, Leonardo Cerasino, Vladyslava Hostyeva, Samuel Cirés
Paralytic shellfish poisoning (PSP) toxin production has been detected worldwide in the cyanobacterial genera Anabaena, Lyngbya, Scytonema, Cuspidothrix and Aphanizomenon. In Europe Aphanizomenon gracile and Cuspidothrix issatschenkoi are the only known producers of PSP toxins and are found in Southwest and Central European freshwater bodies. In this study the PSP toxin producing Aphanizomenon sp. strain NIVA-CYA 851 was isolated from the Norwegian Lake Hillestadvannet. In a polyphasic approach NIVA-CYA 851 was morphologically and phylogenetically classified, and investigated for toxin production...
2016: PloS One
https://www.readbyqxmd.com/read/27907066/b-cell-based-seamless-engineering-of-antibody-fc-domains
#10
Koji Hashimoto, Kohei Kurosawa, Akiho Murayama, Hidetaka Seo, Kunihiro Ohta
Engineering of monoclonal antibodies (mAbs) enables us to obtain mAbs with additional functions. In particular, modifications in antibody's Fc (fragment, crystallizable) region can provide multiple benefits such as added toxicity by drug conjugation, higher affinity to Fc receptors on immunocytes, or the addition of functional modules. However, the generation of recombinant antibodies requires multiple laborious bioengineering steps. We previously developed a technology that enables rapid in vitro screening and isolation of specific mAb-expressing cells from the libraries constructed with chicken B-cell line DT40 (referred to as the 'ADLib system')...
2016: PloS One
https://www.readbyqxmd.com/read/27907032/genetic-structure-in-the-northern-range-margins-of-common-ash-fraxinus-excelsior-l
#11
Mari Mette Tollefsrud, Tor Myking, Jørn Henrik Sønstebø, Vaidotas Lygis, Ari Mikko Hietala, Myriam Heuertz
During post glacial colonization, loss of genetic diversity due to leading edge effects may be attenuated in forest trees because of their prolonged juvenile phase, allowing many migrants to reach the colonizing front before populations become reproductive. The northern range margins of temperate tree taxa in Europe are particularly suitable to study the genetic processes that follow colonization because they have been little affected by northern refugia. Here we examined how post glacial range dynamics have shaped the genetic structure of common ash (Fraxinus excelsior L...
2016: PloS One
https://www.readbyqxmd.com/read/27906527/behavioral-epigenetics
#12
David S Moore
Why do we grow up to have the traits we do? Most 20th century scientists answered this question by referring only to our genes and our environments. But recent discoveries in the emerging field of behavioral epigenetics have revealed factors at the interface between genes and environments that also play crucial roles in development. These factors affect how genes work; scientists now know that what matters as much as which genes you have (and what environments you encounter) is how your genes are affected by their contexts...
December 1, 2016: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/27906523/developmental-evolution
#13
REVIEW
Robert Lickliter
Biologists and psychologists are re-thinking the long-standing premise of genes as the primary cause of development, a view widely embraced in 20th-century biology. This shift in thinking is based in large part on: (1) the growing appreciation of the complex, distributed regulatory dynamics of gene expression; and (2) the growing appreciation of the probabilistic, contingent, and situated nature of development. We now appreciate that what actually unfolds during individual development represents only one of many possibilities...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27906500/phylogenetic-studies-gene-cluster-analysis-and-enzymatic-reaction-support-anthrahydroquinone-reduction-as-the-physiological-function-of-fungal-17%C3%AE-hydroxysteroid-dehydrogenase
#14
Leon Fürtges, David Conradt, Michael A Schätzle, Shailesh Kumar Singh, Nada Kraševec, Tea Lanišnik Rižner, Michael Müller, Syed Masood Husain
17β-Hydroxysteroid dehydrogenase (17β-HSDcl) from the filamentous fungus Curvularia lunata (teleomorph Cochliobolus lunatus) catalyzes NADP(H)-dependent oxidoreductions of androgens and estrogens. Despite detailed biochemical and structural characterization of 17β-HSDcl, its physiological function remains unknown. On the basis of amino acid sequence alignment, phylogenetic studies, and the recent identification of the physiological substrates of the homologous MdpC from Aspergillus nidulans and AflM from Aspergillus parasiticus, we propose an anthrahydroquinone as the physiological substrate of 17β-HSDcl...
December 1, 2016: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/27906200/evaluating-the-quality-of-marfan-genotype-phenotype-correlations-in-existing-fbn1-databases
#15
Kristian A Groth, Yskert Von Kodolitsch, Kerstin Kutsche, Mette Gaustadnes, Kasper Thorsen, Niels H Andersen, Claus H Gravholt
BACKGROUND: Genetic FBN1 testing is pivotal for confirming the clinical diagnosis of Marfan syndrome. In an effort to evaluate variant causality, FBN1 databases are often used. We evaluated the current databases regarding FBN1 variants and validated associated phenotype records with a new Marfan syndrome geno-phenotyping tool called the Marfan score. METHODS AND RESULTS: We evaluated four databases (UMD-FBN1, ClinVar, the Human Gene Mutation Database (HGMD), and Uniprot) containing 2,250 FBN1 variants supported by 4,904 records presented in 307 references...
December 1, 2016: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/27904471/corrigendum-selection-of-reference-genes-for-rt-qpcr-analysis-in-coccinella-septempunctata-to-assess-un-intended-effects-of-rnai-transgenic-plants
#16
Chunxiao Yang, Evan L Preisser, Hongjun Zhang, Yong Liu, Liangying Dai, Huipeng Pan, Xuguo Zhou
[This corrects the article on p. 1672 in vol. 7, PMID: 27877186.].
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27903800/genetic-variability-of-myxoma-virus-genomes
#17
Christoph Braun, Andrea Thürmer, Rolf Daniel, Anne-Kathrin Schultz, Ingo Bulla, Horst Schirrmeier, Dietmar Mayer, Andreas Neubert, Claus-Peter Czerny
: Myxomatosis is a recurrent problem on rabbit farms throughout Europe despite the success of vaccines. To identify gene variations of field and vaccine strains that may be responsible for changes in virulence, immunomodulation, and immunoprotection, the genomes of 6 Myxoma virus strains (MYXV) were sequenced: German field isolates Munich-1, FLI-H, 2604, 3207, vaccine strain MAV, and challenge strain ZA. The analyzed genomes ranged from 147.6 kb (strain MAV) to 161.8 kb (strain 3207) in size...
November 30, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27903611/the-genomic-architecture-of-interactions-between-natural-genetic-polymorphisms-and-environments-in-yeast-growth
#18
Xinzhu Wei, Jianzhi Zhang
Gene-environment interaction (G×E) refers to the phenomenon that the same mutation has different phenotypic effects in different environments. Although quantitative trait loci (QTLs) exhibiting G×E have been reported, little is known about the general properties of G×E and those of its underlying QTLs. Here we use the genotypes of 1005 segregants from a cross between two Saccharomyces cerevisiae strains and the growth rates of these segregants in 47 environments to identify growth rate QTLs (gQTLs) in each environment and QTLs that have different growth effects in each pair of environments (g×eQTLs)...
November 30, 2016: Genetics
https://www.readbyqxmd.com/read/27903443/biochemical-and-genetic-basis-of-orsellinic-acid-biosynthesis-and-prenylation-in-a-stereaceous-basidiomycete
#19
Jana Braesel, Janis Fricke, Daniel Schwenk, Dirk Hoffmeister
The prenylphenols are a class of natural products that have been frequently isolated from basidiomycetes, e.g., from the genus Stereum (false turkey tail fungi) and other Russulales as well as from ascomycetes. Biosynthetically, these compounds are considered hybrids, as the orsellinic acid moiety is a polyketide and the prenyl side chain originates from the terpene metabolism, although no literature on the genetic and biochemical background of the biosynthesis is available. In a stereaceous basidiomycete, referred to as BY1, a new prenylphenol, now termed cloquetin, was identified and its structure elucidated by mass spectrometry and nuclear magnetic resonance spectroscopy...
November 26, 2016: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/27902807/improving-genetic-gain-with-genomic-selection-in-autotetraploid-potato
#20
Anthony T Slater, Noel O I Cogan, John W Forster, Benjamin J Hayes, Hans D Daetwyler
Potato ( L.) breeders consider a large number of traits during cultivar development and progress in conventional breeding can be slow. There is accumulating evidence that some of these traits, such as yield, are affected by a large number of genes with small individual effects. Recently, significant efforts have been applied to the development of genomic resources to improve potato breeding, culminating in a draft genome sequence and the identification of a large number of single nucleotide polymorphisms (SNPs)...
November 2016: Plant Genome
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