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https://www.readbyqxmd.com/read/28821187/genetic-dissection-of-seedling-stage-salinity-tolerance-in-rice-using-introgression-lines-of-a-salt-tolerant-landrace-nona-bokra
#1
Venkata Ramana Rao Puram, John Ontoy, Steven Linscombe, Prasanta K Subudhi
Salinity is an important abiotic stress affecting rice production worldwide. Development of salt tolerant varieties is the most feasible approach for improving rice productivity in salt affected soils. In rice, seedling stage salinity tolerance is crucial for better crop establishment. Quantitative trait loci (QTL) mapping using introgression lines (ILs) is useful for identification and simultaneous transfer of desirable alleles into elite genetic background. In the present study, 138 ILs derived from the cross between a high yielding elite salt susceptible japonica rice cultivar Jupiter and a salt tolerant indica landrace Nona Bokra were evaluated for salt tolerance at seedling stage in a hydroponics experiment and were genotyped using 126 simple sequence repeat markers...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28821186/molecular-population-genetics-of-the-northern-elephant-seal-mirounga-angustirostris
#2
Alicia Abadía-Cardoso, Nelson B Freimer, Kristy Deiner, John Carlos Garza
The northern elephant seal, Mirounga angustirostris, was heavily hunted and declared extinct in the 19th century. However, a colony remained on remote Guadalupe Island, Mexico and the species has since repopulated most of its historical distribution. Here, we present a comprehensive evaluation of genetic variation in the species. First, we assess the effect of the demographic bottleneck on microsatellite variability and compare it with that found in other pinnipeds, demonstrating levels of variation similar to that in species that continue to be threatened with extinction...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28821182/microsatellite-mutation-rate-in-atlantic-sturgeon-acipenser-oxyrinchus
#3
Hanna Panagiotopoulou, James D Austin, Katarzyna Zalewska, Magdalena Gonciarz, Kinga Czarnogórska, Jan Gawor, Piotr Weglenski, Danijela Popovic
Understanding mutation rates can greatly extend the utility of population and conservation genetic analyses. Herein, we present an estimate of genome-wide microsatellite mutation rate in Atlantic sturgeon (Acipenser oxyrinchus) based on parent-offspring transmission patterns. We screened 307 individuals for parentage and mutation-rate analysis applying 43 variable markers. Out of 13228 allele transfers, 11 mutations were detected, producing a mutation rate of 8.3 × 10-4 per locus per generation (95% confidence interval: 1...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28821001/influence-on-serum-asymmetric-dimethylarginine-adma-concentrations-of-human-paraoxonase-1-polymorphism-q192r-and-exposure-to-polycyclic-aromatic-hydrocarbons-pahs-in-mexican-women-a-gene-environment-interaction
#4
Ángeles C Ochoa-Martínez, Tania Ruíz-Vera, Claudia I Almendarez-Reyna, Sandra T Orta-García, Iván N Pérez-Maldonado
It has been demonstrated that Cardiovascular Diseases (CVD) are a consequence of the combination of genetic and environmental factors and/or the interaction between them. Therefore, the aim of this study was to evaluate the impact of polycyclic aromatic hydrocarbon (PAHs) exposure and PON1 Q192R polymorphism (genetic susceptibility) on serum asymmetric dimethylarginine (ADMA) levels in Mexican women (n = 206). Urinary 1-hydroxypyrene concentrations (1-OHP; exposure biomarker for PAHs) were quantified using a high-performance liquid chromatography technique, PON1 Q192R polymorphism was genotyped using TaqMan probes and serum ADMA concentrations were evaluated using a commercially available ELISA kit...
August 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/28820869/necrotizing-enterocolitis-and-high-intestinal-iron-uptake-due-to-genetic-variants
#5
Wolfgang Göpel, Josephine Drese, Tanja K Rausch, Nele Twisselmann, Bettina Bohnhorst, Andreas Müller, Axel Franz, Andreas Ziegler, Christoph Härtel, Egbert Herting
BACKGROUND: Intestinal iron is a nutritional compound, which is essential for enteric microbiota. We evaluated the hypothesis that polymorphisms which are known modifiers of intestinal iron uptake in adults are associated with necrotizing enterocolitis (NEC) in preterm infants. METHODS: Preterm infants (birth weight below 1,500 grams) were studied. Single nucleotide polymorphisms with known effects on serum iron levels (rs1800562, rs1799945, rs855791) were determined by polymerase chain reaction...
August 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28820691/field-trial-of-the-carestart-biosensor-analyzer-for-the-determination-of-glucose-6-phosphate-dehydrogenase-activity-in-haiti
#6
Thomas A Weppelmann, Michael E von Fricken, Tara D Wilfong, Elisa Aguenza, Taina T Philippe, Bernard A Okech
Throughout many developing and tropical countries around the world, malaria remains a significant threat to human health. One barrier to malaria elimination is the ability to safely administer primaquine chemotherapy for the radical cure of malaria infections in populations with a high prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency. In the current study, a field trial of the world's first quantitative, point-of-care assay for measuring G6PD activity was conducted in Haiti. The performance of the CareStart Biosensor Analyzer was compared with the gold standard spectrophotometric assay and genotyping of the G6PD allele in schoolchildren (N = 343) from the Ouest Department of Haiti...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820464/enhanced-susceptibility-of-ogg1-mutant-mice-to-multiorgan-carcinogenesis
#7
Anna Kakehashi, Naomi Ishii, Takahiro Okuno, Masaki Fujioka, Min Gi, Hideki Wanibuchi
The role of deficiency of oxoguanine glycosylase 1 (Ogg1) Mmh homolog, a repair enzyme of the 8-hydroxy-2'-deoxyguanosine (8-OHdG) residue in DNA, was investigated using the multiorgan carcinogenesis bioassay in mice. A total of 80 male and female six-week-old mice of C57BL/6J background carrying a mutant Mmh allele of the Mmh/Ogg1 gene (Ogg1(-)(/)(-)) and wild type (Ogg1(+/+)) mice were administered N-diethylnitrosamine (DEN), N-methyl-N-nitrosourea (MNU), N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN), N-bis (2-hydroxypropyl) nitrosamine (DHPN) and 1,2-dimethylhydrazine dihydrochloride (DMH) (DMBDD) to induce carcinogenesis in multiple organs, and observed up to 34 weeks...
August 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28820077/genetic-variants-of-pear1-are-associated-with-platelet-function-and-antiplatelet-drug-efficacy-a-systematic-review-and-meta-analysis
#8
Qian Xiang, Shuang Zhou, Joshua P Lewis, Alan R Shuldiner, Guanhua Ren, Yimin Cui
BACKGROUND: Platelet endothelial aggregation receptor 1 (PEAR1) may affect platelet-platelet contact and aggregation. The aim of this study was to assess the association between PEAR1 polymorphisms and risks of platelet aggregation. METHODS: We searched the PubMed, EmBase, and Cochrane Library electronic databases for articles published through November 30th. 2016. Meta-analysis was performed to examine the relationship between PEAR1 and platelet aggregation and sensitivity analysis by removing individual study from meta-analysis...
August 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28819827/interaction-between-selp-genetic-polymorphisms-with-inflammatory-cytokine-interleukin-6-il-6-gene-variants-on-cardiovascular-disease-in-chinese-han-population
#9
Lu Kou, Ning Yang, Bo Dong, Yang Li, Jingyu Yang, Qin Qin
The aim of the study is to investigate the impact of SELP and IL-6 genetic single-nucleotide polymorphisms (SNPs) and its gene-gene interaction on cardiovascular disease (CVD) risk based on Chinese population. A total of 1082 subjects (519 males, 563 females), with a mean age of 53.9 ± 13.1 years, were selected, including 540 CVD patients and 542 normal control participants. Logistic regression model was used to examine the association between six SNPs and CVD risk. Odds ratio (OR) and 95% confident interval (95% CI) were calculated...
August 18, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28819757/development-of-cyp21a2-genotyping-assay-for-the-diagnosis-of-congenital-adrenal-hyperplasia
#10
Mayara Jorgens Prado, Simone Martins de Castro, Cristiane Kopacek, Maricilda Palandi de Mello, Thaiane Rispoli, Tarciana Grandi, Cláudia Maria Dornelles da Silva, Maria Lucia Rosa Rossetti
BACKGROUND: Steroid 21-hydroxylase deficiency due to CYP21A2 gene mutations represents more than 90% of all congenital adrenal hyperplasia cases. This deficiency is screened by measuring levels of 17-hydroxyprogesterone, which may vary, causing false positive or false negative results. In order to assist the diagnosis, molecular methodologies have been employed. This work aimed to perform genotyping assays to detect mutations in the CYP21A2 gene and compare the findings with other population studies...
August 17, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28819537/-nod2-gene-mutation-in-moroccan-patients-with-crohn-s-disease-prevalence-genotypic-study-and-correlation-of-nod2-gene-mutation-with-the-phenotype-of-crohn-s-disease
#11
Mouna Tamzaourte, Ikram Errabih, Hayat Krami, Fadlouallah Maha, Lahmiri Maria, Nadia Benzzoubeir, Laaziza Ouazzani, Ahmed Sefiani, Houria Ouazzani
The aim of this study was to determine the prevalence of NOD2/CARD15 gene mutations in a group of Moroccan patients with Crohn's disease and to study its correlation with genotype-phenotypic expression. We conducted a cross-sectional case-control study over a period of 16 months. 101 patients with Crohn's disease were enrolled between January 2012 and April 2013 as well as a control group of 107 patients. We performed a genetic analysis to identify 3 NOD2 gene variants: p.Arg702Trp, p.Gly908Arg and p.Leu1007fsins...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28819444/association-of-hla-drb1-hla-dqb1-polymorphisms-with-hpv-16-e6-variants-among-young-cervical-cancer-patients-in-china
#12
Yan Hu, Jin-Ze Wu, Hua Zhu, Sheng-Hui Zhang, Yan-Ying Zhu, Yi-Yao Wu, Ci-Xia Shuai
Potential correlation of human papillomavirus (HPV) 16 E6 variants and human leukocyte antigen (HLA) class II polymorphisms has been suggested in patients with cervical cancer, so far little information is available about the possible interaction between E6 variants and HLA class II variability during the obviously accelerated progression to cervical cancer in young women. In this study, we aimed to explore the association between the HPV16 E6 variants and HLA-DRB1, DQB1 alleles in a Chinese young cervical cancer population...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819420/loss-of-complement-factor-h-in-plasma-increases-endothelial-cell-migration
#13
Ju Liu, Josephine Hoh
Tumor growth depends on angiogenesis, the growth of new blood vessels. Complement factor H (CFH) is a plasma glycoprotein that functions as a regulator of the complement system. The aim of this study is to delineate the role of CFH in angiogenesis. A conditional null allele of the Cfh gene was generated in C57BL/6J mice by flanking the exon 3 with loxP sites. The Cfh(flox/flox) mice were crossed with Rosa26-Cre mice to obtain the mice homozygotes of Cfh deletion (Cfh(-/-)). The Cfh(-/-) mice were examined by in vivo angiogenesis assays...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819417/mdm2-snp309-and-snp285-act-as-negative-prognostic-markers-for-non-small-cell-lung-cancer-adenocarcinoma-patients
#14
Christophe Deben, Ken Op de Beeck, Jolien Van den Bossche, Julie Jacobs, Filip Lardon, An Wouters, Marc Peeters, Guy Van Camp, Christian Rolfo, Vanessa Deschoolmeester, Patrick Pauwels
Objectives: Two functional polymorphisms in the MDM2 promoter region, SNP309T>G and SNP285G>C, have been shown to impact MDM2 expression and cancer risk. Currently available data on the prognostic value of MDM2 SNP309 in non-small cell lung cancer (NSCLC) is contradictory and unavailable for SNP285. The goal of this study was to clarify the role of these MDM2 SNPs in the outcome of NSCLC patients. Materials and Methods: In this study we genotyped SNP309 and SNP285 in 98 NSCLC adenocarcinoma patients and determined MDM2 mRNA and protein levels...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819312/shared-peptide-binding-of-hla-class-i-and-ii-alleles-associate-with-cutaneous-nevirapine-hypersensitivity-and-identify-novel-risk-alleles
#15
Rebecca Pavlos, Elizabeth J McKinnon, David A Ostrov, Bjoern Peters, Soren Buus, David Koelle, Abha Chopra, Ryan Schutte, Craig Rive, Alec Redwood, Susana Restrepo, Austin Bracey, Thomas Kaever, Paisley Myers, Ellen Speers, Stacy A Malaker, Jeffrey Shabanowitz, Yuan Jing, Silvana Gaudieri, Donald F Hunt, Mary Carrington, David W Haas, Simon Mallal, Elizabeth J Phillips
Genes of the human leukocyte antigen (HLA) system encode cell-surface proteins involved in regulation of immune responses, and the way drugs interact with the HLA peptide binding groove is important in the immunopathogenesis of T-cell mediated drug hypersensitivity syndromes. Nevirapine (NVP), is an HIV-1 antiretroviral with treatment-limiting hypersensitivity reactions (HSRs) associated with multiple class I and II HLA alleles. Here we utilize a novel analytical approach to explore these multi-allelic associations by systematically examining HLA molecules for similarities in peptide binding specificities and binding pocket structure...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819237/disruption-of-the-plant-specific-cfs1-gene-impairs-autophagosome-turnover-and-triggers-eds1-dependent-cell-death
#16
Arpaporn Sutipatanasomboon, Stefanie Herberth, Ellen G Alwood, Heidrun Häweker, Britta Müller, Mojgan Shahriari, Anke Y Zienert, Birger Marin, Silke Robatzek, Gerrit J K Praefcke, Kathryn R Ayscough, Martin Hülskamp, Swen Schellmann
Cell death, autophagy and endosomal sorting contribute to many physiological, developmental and immunological processes in plants. They are mechanistically interconnected and interdependent, but the molecular basis of their mutual regulation has only begun to emerge in plants. Here, we describe the identification and molecular characterization of CELL DEATH RELATED ENDOSOMAL FYVE/SYLF PROTEIN 1 (CFS1). The CFS1 protein interacts with the ENDOSOMAL SORTING COMPLEX REQUIRED FOR TRANSPORT I (ESCRT-I) component ELCH (ELC) and is localized at ESCRT-I-positive late endosomes likely through its PI3P and actin binding SH3YL1 Ysc84/Lsb4p Lsb3p plant FYVE (SYLF) domain...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819230/genomic-signatures-of-local-adaptation-reveal-source-sink-dynamics-in-a-high-gene-flow-fish-species
#17
Katherine Cure, Luke Thomas, Jean-Paul A Hobbs, David V Fairclough, W Jason Kennington
Understanding source-sink dynamics is important for conservation management, particularly when climatic events alter species' distributions. Following a 2011 'marine heatwave' in Western Australia, we observed high recruitment of the endemic fisheries target species Choerodon rubescens, towards the cooler (southern) end of its distribution. Here, we use a genome wide set of 14 559 single-nucleotide polymorphisms (SNPs) to identify the likely source population for this recruitment event. Most loci (76%) showed low genetic divergence across the species' range, indicating high levels of gene flow and confirming previous findings using neutral microsatellite markers...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819183/distribution-bias-and-biochemical-characterization-of-top1mt-single-nucleotide-variants
#18
Hongliang Zhang, Yeonee Seol, Keli Agama, Keir C Neuman, Yves Pommier
Mitochondrial topoisomerase I (TOP1MT) is a type IB topoisomerase encoded in the nucleus of vertebrate cells. In contrast to the other five human topoisomerases, TOP1MT possesses two high frequency single nucleotide variants (SNVs), rs11544484 (V256I, Minor Allele Frequency = 0.27) and rs2293925 (R525W, MAF = 0.45), which tend to be mutually exclusive across different human ethnic groups and even more clearly in a cohort of 129 US patients with breast cancer and in the NCI-60 cancer cell lines. We expressed these two TOP1MT variants and the double-variant (V256I-R525W) as recombinant proteins, as well as a less common variant E168G (rs200673353, MAF = 0...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819113/insights-into-the-role-of-endonuclease-v-in-rna-metabolism-in-trypanosoma-brucei
#19
Daniel García-Caballero, Guiomar Pérez-Moreno, Antonio M Estévez, Luis Miguel Ruíz-Pérez, Antonio E Vidal, Dolores González-Pacanowska
Inosine may arise in DNA as a result of oxidative deamination of adenine or misincorporation of deoxyinosine triphosphate during replication. On the other hand, the occurrence of inosine in RNA is considered a normal and essential modification induced by specific adenosine deaminases acting on mRNA and tRNA. In prokaryotes, endonuclease V (EndoV) can recognize and cleave inosine-containing DNA. In contrast, mammalian EndoVs preferentially cleave inosine-containing RNA, suggesting a role in RNA metabolism for the eukaryotic members of this protein family...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819071/genetic-and-non-genetic-factors-associated-with-protein-abundance-of-flavin-containing-monooxygenase-3-in-human-liver
#20
Meijuan Xu, Deepak Kumar Bhatt, Catherine K Yeung, Katrina G Claw, Amarjit S Chaudhry, Andrea Gaedigk, Robin E Pearce, Ulrich Broeckel, Roger Gaedigk, Debbie Nickerson, Erin Schuetz, Allan E Rettie, Steven Leeder, Kenneth E Thummel, Bhagwat Prasad
Hepatic flavin-containing monooxygenase 3 (FMO3) metabolizes a broad array of nucleophilic heteroatom (e.g., N or S)-containing xenobiotics (e.g., amphetamine, sulindac, benzydamine, ranitidine, tamoxifen, nicotine, and ethioniamide), as well as endogenous compounds (e.g., catecholamine and trimethylamine). To predict the effect of genetic and non-genetic factors on the hepatic metabolism of FMO3 substrates, we quantified FMO3 protein abundance in human liver microsomes (HLM; n=445) by LC-MS/MS proteomics. Genotyping/gene-resequencing, mRNA expression, and functional activity (with benzydamine as a probe substrate) of FMO3 were also performed...
August 17, 2017: Journal of Pharmacology and Experimental Therapeutics
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