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https://www.readbyqxmd.com/read/28719963/prevalence-of-hymenolepis-nana-and-h-diminuta-from-brown-rats-rattus-norvegicus-in-heilongjiang-province-china
#1
Di Yang, Wei Zhao, Yichi Zhang, Aiqin Liu
Hymenolepis nana and Hymenolepis diminuta are globally widespread zoonotic cestodes. Rodents are the main reservoir host of these cestodes. Brown rats (Rattus norvegicus) are the best known and most common rats, and usually live wherever humans live, especially in less than desirable hygiene conditions. Due to the little information of the 2 hymenolepidid species in brown rats in China, the aim of this study was to understand the prevalence and genetic characterization of H. nana and H. diminuta in brown rats in Heilongjiang Province, China...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719959/pcr-identification-and-phylogenetic-analysis-of-trichomonas-gallinae-from-domestic-pigeons-in-guangzhou-china
#2
Shen-Ben Qiu, Meng-Na Lv, Xi He, Ya-Biao Weng, Shang-Shu Zou, Xin-Qiu Wang, Rui-Qing Lin
Avian trichomoniasis caused by Trichomonas gallinae is a serious protozoan disease worldwide. The domestic pigeon (Columba livia domestica) is the main host for T. gallinae and plays an important role in the spread of the disease. Based on the internal transcribed spacers of nuclear ribosomal DNA of this parasite, a pair of primers (TgF2/TgR2) was designed and used to develop a PCR assay for the diagnosis of T. gallinae infection in domestic pigeons. This approach allowed the identification of T. gallinae, and no amplicons were produced when using DNA from other common avian pathogens...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719948/isolation-and-genotyping-of-toxoplasma-gondii-in-brazilian-dogs
#3
Jamille Rodrigues da Silva, Bianca Mendes Maciel, Luana Karla Nogueira de Santana Souza Santos, Fábio Santos Carvalho, Daniele de Santana Rocha, Carlos Wilson Gomes Lopes, George Rêgo Albuquerque
Strains of Toxoplasma gondii in Brazil are highly genetically diverse compared to strains from North America and Europe. Dogs are epidemiologically important because they act as sentinels for T. gondii infections in humans and are good indicators of environmental contamination. The aim of this study was to isolate and genetically characterize T. gondii strains from tissues of naturally infected Brazilian dogs. For this study, 21 blood samples were collected from dogs at the Zoonosis Control Centers of Ilhéus and Itabuna cities, Bahia, Brazil...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719910/correlating-the-genetic-and-physical-map-of-barley-chromosome-3h-revealed-limitations-of-the-fish-based-mapping-of-nearby-single-copy-probes-caused-by-the-dynamic-structure-of-metaphase-chromosomes
#4
Fernanda O Bustamante, Lala Aliyeva-Schnorr, Jörg Fuchs, Sebastian Beier, Andreas Houben
Genetic maps are based on the recombination frequency of molecular markers which often show different positions in comparison to the corresponding physical maps. To decipher the position and order of DNA sequences genetically mapped to terminal and interstitial regions of barley (Hordeum vulgare) chromosome 3H, fluorescence in situ hybridization (FISH) on mitotic metaphase chromosomes was performed with 16 genomic single-copy probes derived from fingerprinted BAC contigs. Long genetic distances at subterminal regions translated into short physical distances, confirming that recombination events occur more often at distal regions of chromosome 3H...
July 19, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28719907/tumor-heterogeneity-in-lymphomas-a-different-breed
#5
Christian M Schürch, Birgit Federmann, Leticia Quintanilla-Martinez, Falko Fend
The facts that cancer represents tissues consisting of heterogeneous neoplastic, as well as reactive, cell populations and that cancers of the same histotype may show profound differences in clinical behavior have long been recognized. With the advent of new technologies and the demands of precision medicine, the investigation of tumor heterogeneity has gained much interest. An understanding of intertumoral heterogeneity in patients with the same disease entity is necessary to optimally guide personalized treatment...
July 19, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28719906/a-common-ancestral-asn242ser-mutation-in-tmem67-identified-in-multiple-iranian-families-with-joubert-syndrome
#6
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/28719899/the-relationship-between-mmp-2-1306c-t-and-mmp-9-1562c-t-polymorphisms-and-the-risk-and-prognosis-of-t-cell-acute-lymphoblastic-leukemia-in-a-chinese-population-a-case-control-study
#7
Cong-Meng Lin, Yan-Ling Zeng, Min Xiao, Xu-Qiao Mei, Lv-Ying Shen, Meng-Xian Guo, Zhe-Yao Lin, Qi-Fa Liu, Tin Yang
BACKGROUND: T-cell acute lymphoblastic leukemia (T-ALL) is a malignant hematological disease and is often accompanied by a variety of genetic abnormalities. Hence, our study aims to investigate the relationship between MMP-2 -1306C>T and MMP-9 -1562C>T polymorphisms and the risk and prognosis of T-ALL. METHODS: From April 2009 to February 2011, a total of 376 T-ALL patients were chosen as the case group. Meanwhile, 352 healthy people who passed routine health examinations were selected as the control group...
July 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28719815/receptiveness-to-participation-in-genetic-research-a-pilot-study-comparing-views-of-people-with-depression-diabetes-or-no-illness
#8
Laura Weiss Roberts, Jane Paik Kim
BACKGROUND: Genetic research in human health relies on the participation of individuals with or at-risk for different types of diseases, including health conditions that may be stigmatized, such as mental illnesses. This preliminary study examines the differences in attitudes toward participation in genetic research among individuals with a psychiatric disorder, individuals with a physical disorder, and individuals with no known illness. METHODS: Seventy-nine individuals with a history of diabetes or depression, or no known illness, underwent a simulated consent process for a hypothetical genetic research study...
July 4, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28719803/elevated-sterol-regulatory-elementary-binding-protein-1-and-glua2-levels-in-the-hippocampal-nuclear-fraction-of-genetic-absence-epilepsy-rats-from-strasbourg
#9
Sathiya Sekar, Entesar Omran, Venkat Gopalakrishnan, John G Howland, Terrance P Snutch, Changiz Taghibiglou
Studies in animal models and human tissues show that nuclear translocation of sterol regulatory element binding protein 1 (SREBP1) and glutamate A2 subunit (GluA2) of cell-surface AMPA receptor (AMPAR) trigger neuronal excitotoxicity-induced apoptosis in stroke. However, it is not known whether a similar type of underlying pathophysiology occurs in absence epilepsy. To explore this issue, we examined the levels of mature SREBP1, GluA2, glyceraldehyde 3-phosphate dehydrogenase (GAPDH), p53, and activated to total caspase 3 ratio in nuclear fractions (NF) of hippocampal homogenate from 8 to 10 week old male Genetic Absence Epilepsy Rats from Strasbourg (GAERS) and non-epileptic control (NEC) strains...
July 12, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28719800/variants-in-the-il-8-gene-and-the-response-to-inhaled-bronchodilators-in-cystic-fibrosis
#10
Larissa Lazzarini Furlan, José Dirceu Ribeiro, Carmen Sílvia Bertuzzo, João Batista Salomão Junior, Dorotéia Rossi Silva Souza, Fernando Augusto Lima Marson
OBJECTIVE: IL-8 (interleukin 8) protein promotes inflammatory responses, even in airways. The presence of IL-8 gene variants causes altered inflammatory responses and possibly varied responses to inhaled bronchodilators (BD). Thus, this study analyzed the IL-8 variants (rs4073, rs2227306, and rs2227307) and their association with the response to BD in cystic fibrosis (CF) patients. METHODS: Analysis of IL-8 gene variants was performed by RFLP-PCR. The association between spirometry markers and the response to BD was evaluated by Mann-Whitney and Kruskal-Wallis tests...
July 15, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28719732/genome-wide-association-meta-analysis-reveals-novel-juvenile-idiopathic-arthritis-susceptibility-loci
#11
Laura A McIntosh, Miranda C Marion, Marc Sudman, Mary E Comeau, Mara L Becker, John F Bohnsack, Tasha E Fingerlin, Thomas A Griffin, J Peter Haas, Daniel J Lovell, Lisa A Maier, Peter A Nigrovic, Sampath Prahalad, Marilynn Punaro, Carlos D Rosé, Carol A Wallace, Carol A Wise, Halima Moncrieffe, Timothy D Howard, Carl D Langefeld, Susan D Thompson
OBJECTIVE: Juvenile idiopathic arthritis (JIA) is the most common childhood rheumatic disease and has a strong genomic component. To date, JIA genetic association studies have had limited sample sizes, used heterogeneous patient populations, or included only candidate regions. This study focuses on identifying new associations among oligoarticular and polyarticular rheumatoid factor negative (RF(-) ) JIA, which are clinically similar and the most prevalent JIA disease subtypes. METHODS: Three cohorts totaling 2,751 oligoarticular and polyarticular RF(-) JIA cases were genotyped on the Affymetrix Genome-Wide SNP Array 6...
July 18, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28719603/the-%C3%A2-100-lab-a-3d-printable-open-source-platform-for-fluorescence-microscopy-optogenetics-and-accurate-temperature-control-during-behaviour-of-zebrafish-drosophila-and-caenorhabditis-elegans
#12
Andre Maia Chagas, Lucia L Prieto-Godino, Aristides B Arrenberg, Tom Baden
Small, genetically tractable species such as larval zebrafish, Drosophila, or Caenorhabditis elegans have become key model organisms in modern neuroscience. In addition to their low maintenance costs and easy sharing of strains across labs, one key appeal is the possibility to monitor single or groups of animals in a behavioural arena while controlling the activity of select neurons using optogenetic or thermogenetic tools. However, the purchase of a commercial solution for these types of experiments, including an appropriate camera system as well as a controlled behavioural arena, can be costly...
July 2017: PLoS Biology
https://www.readbyqxmd.com/read/28719596/the-influence-of-fcgr2a-and-fcgr3a-polymorphisms-on-the-survival-of-patients-with-recurrent-or-metastatic-squamous-cell-head-and-neck-cancer-treated-with-cetuximab
#13
T Magnes, T Melchardt, C Hufnagl, L Weiss, C Mittermair, D Neureiter, E Klieser, G Rinnerthaler, S Roesch, A Gaggl, R Greil, A Egle
FCGR2A-H131R and FCGR3A-V157F are single-nucleotide polymorphisms known to influence the outcome of patients treated with rituximab, cetuximab and trastuzumab. We investigated the impact of these polymorphisms on the clinical outcome of 103 patients with recurrent or metastatic squamous cell carcinoma of the head and neck treated with a platinum compound, fluorouracil and cetuximab as palliative first-line therapy. The survival of patients with FCGR2A-131H/H and/or FCGR3A-157V/V genotypes was significantly longer compared with patients carrying 131R and 157F alleles (median progression-free survival (PFS): 5...
July 18, 2017: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/28719574/ancient-european-dog-genomes-reveal-continuity-since-the-early-neolithic
#14
Laura R Botigué, Shiya Song, Amelie Scheu, Shyamalika Gopalan, Amanda L Pendleton, Matthew Oetjens, Angela M Taravella, Timo Seregély, Andrea Zeeb-Lanz, Rose-Marie Arbogast, Dean Bobo, Kevin Daly, Martina Unterländer, Joachim Burger, Jeffrey M Kidd, Krishna R Veeramah
Europe has played a major role in dog evolution, harbouring the oldest uncontested Palaeolithic remains and having been the centre of modern dog breed creation. Here we sequence the genomes of an Early and End Neolithic dog from Germany, including a sample associated with an early European farming community. Both dogs demonstrate continuity with each other and predominantly share ancestry with modern European dogs, contradicting a previously suggested Late Neolithic population replacement. We find no genetic evidence to support the recent hypothesis proposing dual origins of dog domestication...
July 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28719513/dihydrofolate-reductase-genetic-polymorphisms-affect-methotrexate-dose-requirements-in-pediatric-patients-with-acute-lymphoblastic-leukemia-on-maintenance-therapy
#15
Guillermo Gervasini, Silvia G de Murillo, Mercedes Jiménez, María D de la Maya, Jose M Vagace
We have aimed to determine the effect of polymorphisms in regulatory regions of the DHFR gene in relation to methotrexate (MTX) dose adjustments and drug-induced toxicity in children on maintenance therapy for acute lymphoblastic leukemia (ALL). In total, 41 children diagnosed with ALL were screened for 3 tag-single nucleotide polymorphisms in the DHFR promoter (C-1610G, C-680G/T, A-317G) and an intronic 19-bp insertion/deletion. Genotypes were analyzed in relation to dose requirements and toxicity. The percentage of MTX dose administered (with respect to protocol-recommended values) was affected by DHFR polymorphisms...
July 17, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28719468/etv6-gene-rearrangements-characterize-a-morphologically-distinct-subset-of-sinonasal-low-grade-non-intestinal-type-adenocarcinoma-a-novel-translocation-associated-carcinoma-restricted-to-the-sinonasal-tract
#16
Simon Andreasen, Alena Skálová, Abbas Agaimy, Justin A Bishop, Jan Laco, Ilmo Leivo, Alessandro Franchi, Stine R Larsen, Daiva Erentaite, Benedicte P Ulhøi, Christian von Buchwald, Linea C Melchior, Michal Michal, Katalin Kiss
Low-grade sinonasal adenocarcinomas (low-grade SNACs) of the sinonasal tract comprise a poorly characterized and histologically heterogeneous group of tumors. We describe three cases of a histologically distinct variant of low-grade SNAC characterized by ETV6 gene rearrangements. The patients included 2 women (aged 32 and 88 y) and a man (aged 75 y); all were initially treated with surgery alone. Follow-up ranged from 9 to 170 months with one patient having 2 local recurrences and none experiencing distant or regional metastases...
July 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28719413/evaluation-of-a-new-genetic-family-history-screening-questionnaire-for-identifying-lynch-syndrome
#17
Dawn S Harrison, Marilyn Handley
Family history is essential when screening for hereditary cancer syndromes. This article explores if a detailed genetic family history questionnaire is more effective in identifying at-risk individuals for Lynch syndrome than a basic family health questionnaire.
August 17, 2017: Nurse Practitioner
https://www.readbyqxmd.com/read/28719406/toward-a-biopsychosocial-ecology-of-the-human-microbiome-brain-gut-axis-and-health
#18
Karl J Maier, Mustafa al'Absi
OBJECTIVE: Rapidly expanding insights to the human microbiome and health suggest that Western medicine is poised for significant evolution, or perhaps revolution - this while the field continues on a trajectory from reductionism to a biopsychosocial (BPS) paradigm recognizing biological, psychological, and social influences on health. The apparent sensitivity of the microbiota to perturbations across BPS domains suggests that a broad and inclusive framework is needed to develop applicable knowledge in this area...
July 18, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28719389/genetic-contribution-to-neurodevelopmental-outcomes-in-congenital-heart-disease-are-some-patients-predetermined-to-have-developmental-delay
#19
Caitlin K Rollins, Jane W Newburger, Amy E Roberts
PURPOSE OF REVIEW: Neurodevelopmental impairment is common in children with moderate to severe congenital heart disease (CHD). As children live longer and healthier lives, research has focused on identifying causes of neurodevelopmental morbidity that significantly impact long-term quality of life. This review will address the role of genetic factors in predicting neurodevelopmental outcome in CHD. RECENT FINDINGS: A robust literature suggests that among children with various forms of CHD, those with known genetic/extracardiac anomalies are at highest risk of neurodevelopmental impairment...
July 14, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28719387/pediatric-mitochondrial-diseases-and-the-heart
#20
Gregory M Enns
PURPOSE OF REVIEW: Mitochondrial disorders are an increasingly recognized cause of heart dysfunction, with the primary manifestations being cardiomyopathy and conduction defects. This review focuses on the complex genetics of mitochondrial disease and recently discovered conditions that affect mitochondrial function. RECENT FINDINGS: Next-generation sequencing techniques, especially whole-exome sequencing, have led to the discovery of a number of conditions that cause mitochondrial dysfunction and subsequent cardiac abnormalities...
July 17, 2017: Current Opinion in Pediatrics
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