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https://www.readbyqxmd.com/read/28434198/eukaryotic-diversity-in-late-pleistocene-marine-sediments-around-a-shallow-methane-hydrate-deposit-in-the-japan-sea
#1
M Kouduka, A S Tanabe, S Yamamoto, K Yanagawa, Y Nakamura, F Akiba, H Tomaru, H Toju, Y Suzuki
Marine sediments contain eukaryotic DNA deposited from overlying water columns. However, a large proportion of deposited eukaryotic DNA is aerobically biodegraded in shallow marine sediments. Cold seep sediments are often anaerobic near the sediment-water interface, so eukaryotic DNA in such sediments is expected to be preserved. We investigated deeply buried marine sediments in the Japan Sea, where a methane hydrate deposit is associated with cold seeps. Quantitative PCR analysis revealed the reproducible recovery of eukaryotic DNA in marine sediments at depths up to 31...
April 23, 2017: Geobiology
https://www.readbyqxmd.com/read/28434165/connexin-hemichannels-in-astrocytes-an-assessment-of-controversies-regarding-their-functional-characteristics
#2
Brian Skriver Nielsen, Daniel Bloch Hansen, Bruce R Ransom, Morten Schak Nielsen, Nanna MacAulay
Astrocytes in the mammalian central nervous system are interconnected by gap junctions made from connexins of the subtypes Cx30 and Cx43. These proteins may exist as hemichannels in the plasma membrane in the absence of a 'docked' counterpart on the neighboring cell. A variety of stimuli are reported to open the hemichannels and thereby create a permeation pathway through the plasma membrane. Cx30 and Cx43 have, in their hemichannel configuration, been proposed to act as ion channels and membrane pathways for different molecules, such as fluorescent dyes, ATP, prostaglandins, and glutamate...
April 22, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28434148/advancing-chimeric-antigen-receptor-t-cell-therapy-with-crispr-cas9
#3
REVIEW
Jiangtao Ren, Yangbing Zhao
The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (CRISPR/Cas9) system, an RNA-guided DNA targeting technology, is triggering a revolution in the field of biology. CRISPR/Cas9 has demonstrated great potential for genetic manipulation. In this review, we discuss the current development of CRISPR/Cas9 technologies for therapeutic applications, especially chimeric antigen receptor (CAR) T cell-based adoptive immunotherapy. Different methods used to facilitate efficient CRISPR delivery and gene editing in T cells are compared...
April 22, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28434142/cancer-genetic-counseling-and-testing-in-an-era-of-rapid-change
#4
Gillian W Hooker, Keelia Rhoads Clemens, John Quillin, Kristen J Vogel Postula, Pia Summerour, Rebecca Nagy, Adam H Buchanan
The impacts of the Association for Molecular Pathology vs. Myriad Supreme Court decision regarding patenting DNA segments and multi-gene testing on cancer genetic counseling practice have not been well described. We aimed to assess genetic counselors' perceptions of how their genetic testing-related practices for hereditary breast and/or ovarian cancer (HBOC) changed after these events. One-hundred fifty-two genetic counselors from the National Society of Genetic Counselors Cancer Special Interest Group completed an anonymous, online, mixed-methods survey in November 2013...
April 22, 2017: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/28434122/the-status-of-pulmonary-fibrosis-in-systemic-sclerosis-is-associated-with-irf5-stat4-irak1-and-ctgf-polymorphisms
#5
Wenjie Zhao, Xiaoyang Yue, Kuai Liu, Junfeng Zheng, Runda Huang, Jun Zou, Gabriela Riemekasten, Frank Petersen, Xinhua Yu
Pulmonary fibrosis (PF) is one of the leading causes of death in systemic sclerosis (SSc) patients. Although all SSc patients are characterized by autoimmunity, only part of them suffer from PF, suggesting that beside autoimmunity, some additional factors are involved in the initiation of PF in SSc. In this study, we aimed to identify genetic polymorphisms associated with the status of PF in SSc. We performed that an exhaustive search of the PubMed database was performed to identify eligible studies. Then, a comprehensive meta-analysis was performed by comparing PF(+)-SSc and PF(-)-SSc patients to identify genetic polymorphisms associated with the status of PF in SSc...
April 22, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28434117/associations-of-tim-1-genetic-polymorphisms-with-asthma-a-meta-analysis
#6
Xiaochuan Xie, Xiaohan Shi, Peng Chen, Li Rao
PURPOSE: Recently, the roles of TIM-1 genetic polymorphisms in asthma have been extensively studied, with conflicting results. Therefore, we performed the present meta-analysis to better assess potential associations of TIM-1 genetic polymorphisms with asthma. METHODS: Eligible articles were searched in PubMed, Medline, EMBASE, Google Scholar, and CNKI up to December 2016. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to detect any potential associations between TIM-1 genetic polymorphisms and asthma...
April 22, 2017: Lung
https://www.readbyqxmd.com/read/28434104/mullerian-dysgenesis-a-critical-review-of-the-literature
#7
REVIEW
Souzana Choussein, Dimitrios Nasioudis, Dimitrios Schizas, Konstantinos P Economopoulos
PURPOSE: To present an update of the genetic, clinical, diagnostic, and therapeutic aspects of Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome. METHODS: Studies were considered eligible if they have evaluated patients with MRKH syndrome. Eligible articles were identified by a search of MEDLINE bibliographical database from 1950 to August 2016. A purely descriptive approach was adopted concerning all outcomes examined by the individual studies. RESULTS: MRKH syndrome is defined as congenital aplasia of the upper vagina and impairment of uterine development in normal 46XX females...
April 22, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28434058/medical-conditions-in-the-first-years-of-life-associated-with-future-diagnosis-of-asd-in-children
#8
Stacey E Alexeeff, Vincent Yau, Yinge Qian, Meghan Davignon, Frances Lynch, Phillip Crawford, Robert Davis, Lisa A Croen
This study examines medical conditions diagnosed prior to the diagnosis of autism spectrum disorder (ASD). Using a matched case control design with 3911 ASD cases and 38,609 controls, we found that 38 out of 79 medical conditions were associated with increased ASD risk. Developmental delay, mental health, and neurology conditions had the strongest associations (ORs 2.0-23.3). Moderately strong associations were observed for nutrition, genetic, ear nose and throat, and sleep conditions (ORs 2.1-3.2). Using machine learning methods, we clustered children based on their medical conditions prior to ASD diagnosis and demonstrated ASD risk stratification...
April 22, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28433926/discredited-legacy-stigma-and-familial-amyloid-polyneuropathy-in-northwestern-portugal
#9
Álvaro Mendes, Liliana Sousa, Jorge Sequeiros, Angus Clarke
RATIONALE: Genetic inherited conditions may result in feelings of stigmatisation, mainly because of visible physical appearance and its transmissibility to offspring. OBJECTIVE: This article reports accounts of stigmatisation from Portuguese patients affected by the inherited neurodegenerative disease, familial amyloid polyneuropathy (FAP), living in the largest cluster of patients worldwide. METHOD: We draw on semi-structured interviews conducted with individuals at-risk or affected by FAP, recruited through the national patients' association, about their experiences of stigmatisation related to the illness...
April 15, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28433924/the-metabolic-fate-of-isotopically-labeled-trimethylamine-n-oxide-tmao-in-humans
#10
Siraphat Taesuwan, Clara E Cho, Olga V Malysheva, Erica Bender, Julia H King, Jian Yan, Anna E Thalacker-Mercer, Marie A Caudill
Trimethylamine-N-oxide (TMAO) is associated with chronic disease risk. However, little is known about the metabolic fate of dietary TMAO. This study sought to quantitatively elucidate the metabolic fate of orally consumed TMAO in humans. As part of a crossover feeding study, healthy young men (n=40) consumed 50-mg deuterium-labeled methyl d9-TMAO (d9-TMAO), and enrichments of TMAO and its derivatives were measured in blood for 6 h, urine and stool, as well as skeletal muscle in a subset of men (n=6). Plasma d9-TMAO was detected as early as 15 min, increased until 1 h and remained elevated through the 6-h period...
April 13, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28433894/a-functional-snp-mcp-1-2518a-g-predispose-to-renal-disorder-in-indian-systemic-lupus-erythematosus-patients
#11
Vinod D Umare, Vandana D Pradhan, Anjali G Rajadhyaksha, Kanjaksha Ghosh, Anita H Nadkarni
Systemic Lupus Erythematosus (SLE) is a clinically heterogeneous chronic, inflammatory autoimmune disorder that affects multiple organs where exact etiology of the disease is not yet clearly understood. Various evidences suggest that genetic polymorphisms in inflammatory mediators like cytokines and chemokines may influence development of the disease. Here, we investigated whether functional polymorphism at the Monocyte Chemoattractant Protein-1 (MCP-1) regulatory region associates with disease phenotype in Indian SLE patients...
April 20, 2017: Cytokine
https://www.readbyqxmd.com/read/28433878/effect-of-freshwater-sediment-characteristics-on-the-persistence-of-fecal-indicator-bacteria-and-genetic-markers-within-a-southern-california-watershed
#12
Amity G Zimmer-Faust, Vanessa Thulsiraj, Catalina Marambio-Jones, Yiping Cao, John F Griffith, Patricia A Holden, Jennifer A Jay
In this study, the aging of culturable FIB and DNA representing genetic markers for Enterococcus spp. (ENT1A), general Bacteroides (GB3), and human-associated Bacteroides (HF183) in freshwater sediments was evaluated. Freshwater sediment was collected from four different sites within the upper and lower reach of the Topanga Creek Watershed and two additional comparator sites within the Santa Monica Bay, for a total of six sites. Untreated (ambient) and oven-dried (reduced microbiota) sediment was inoculated with 5% sewage and artificial freshwater...
April 18, 2017: Water Research
https://www.readbyqxmd.com/read/28433851/dna-methylation-regulates-gene-expression-in-intracranial-aneurysms
#13
Lanbing Yu, Jia Wang, Shuo Wang, Dong Zhang, Yuanli Zhao, Rong Wang, Jizong Zhao
OBJECTIVE: Different gene expression profiles are observed in intracranial aneurysm tissue. Understanding these genes and what regulates their expression will help us understand intracranial aneurysm pathogenesis. We investigated whether differences in DNA methylation regulate gene expression in intracranial aneurysms. METHODS: Twenty intracranial aneurysm tissues were compared with 20 matched samples from the superficial temporal artery as controls. We detected the gene expression profiles in these samples using Human U133 Plus 2...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28433796/genetic-diversity-and-virulence-genes-of-salmonella-enterica-subspecies-enterica-serotype-enteritidis-isolated-from-meats-and-eggs
#14
Fatemeh Fardsanei, Mohammad Mehdi Soltan Dallal, Masoumeh Douraghi, Taghi Zahraei Salehi, Mahmood Mahmoodi, Hamed Memariani, Farhad Nikkhahi
Salmonella enterica subspecies enterica serotype Enteritidis (S. Enteritidis) is one of the leading causes of food-borne gastroenteritis associated with the consumption of contaminated food products of animal origin. Little is known about the genetic diversity and virulence content of S. Enteritidis isolated from poultry meats and eggs in Iran. A total of 34 S. Enteritidis strains were collected from different food sources of animal origin in Tehran from May 2015 to July 2016. All of the S. Enteritidis strains were serotyped, antimicrobial susceptibility tested, and characterized for virulence genes...
April 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28433707/genetic-susceptibility-to-toxicologic-lung-responses-among-inbred-mouse-strains-following-exposure-to-carbon-nanotubes-and-profiling-of-underlying-gene-networks
#15
Evan A Frank, Vinicius S Carreira, Kumar Shanmukhappa, Mario Medvedovic, Daniel R Prows, Jagjit S Yadav
The risk of human exposure to fiber nanoparticles has risen in recent years due to increases in the manufacture and utilization of carbon nanotubes (CNTs). CNTs are present as airborne particulates in occupational settings and their hazard potential has been demonstrated in experimental lung exposure studies using inbred mouse strains. However, it is not known whether different inbred strains differ in lung responses to CNTs by virtue of their genetics. In this work, common inbred strains (BALB/c, C57Bl/6, DBA/2, and C3H/He) were exposed to CNTs via oropharyngeal aspiration and lung histology and bronchoalveolar lavage (BAL) samples were evaluated over 28days with the objective of evaluating sensitivity/resistance among strains...
April 19, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28433665/advancing-the-science-of-myocardial-recovery-with-mechanical-circulatory-support-a-working-group-of-the-national-heart-lung-and-blood-institute
#16
Stavros G Drakos, Francis D Pagani, Martha S Lundberg, J Timothy Baldwin
The medical burden of heart failure (HF) has spurred interest in clinicians and scientists to develop therapies to restore the function of a failing heart. To advance this agenda, the National Heart Lung Blood Institute (NHLBI) convened a Working Group of experts on June 2-3, 2016 in Bethesda Maryland to develop recommendations for the NHLBI aimed at advancing the science of cardiac recovery in the setting of mechanical circulatory support (MCS). MSC devices effectively reduce volume and pressure overload that drives the cycle of progressive myocardial dysfunction, thereby triggering structural and functional reverse remodeling...
April 19, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28433570/association-between-environmental-tobacco-smoke-exposure-and-the-occurrence-of-egfr-mutations-and-alk-rearrangements-in-never-smokers-with-non-small-cell-lung-cancer-analyses-from-a-prospective-multinational-ets-registry
#17
Ross A Soo, Akihito Kubo, Masahiko Ando, Tomoya Kawaguchi, Myung-Ju Ahn, Sai-Hong Ignatius Ou
BACKGROUND: Molecular studies have demonstrated actionable driver oncogene alterations are more frequent in never-smokers with non-small-cell lung cancer (NSCLC). The etiology of these driver oncogenes in patients with NSCLC remains unknown, and environmental tobacco smoke (ETS) is a potential cause in these cases. MATERIALS AND METHODS: We assembled clinical and genetic information for never-smoker patients with NSCLC accrued in Japan, Korea, Singapore, and the United States...
January 19, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28433569/vitamin-d-binding-protein-rs7041-polymorphism-and-high-residual-platelet-reactivity-in-patients-receiving-dual-antiplatelet-therapy-with-clopidogrel-or-ticagrelor
#18
Monica Verdoia, Veronica Daffara, Patrizia Pergolini, Roberta Rolla, Paolo Marino, Giorgio Bellomo, Alessandro Carriero, Giuseppe De Luca
BACKGROUND: Vitamin D deficiency represents a major health problem in general population, especially for its association with cardiovascular disorders and thrombotic risk, even in patients on dual antiplatelet therapy (DAPT). Vitamin D Binding Protein (VDBP) is the main transporter of vitamin D in the bloodstream and genetic polymorphisms of this protein have been shown to account for a significant variability of vitamin D levels and its systemic effects. Contrasting data have linked the rs7041 T→G substitution with cardiovascular disease...
April 19, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28433505/chemotherapy-induces-alternative-transcription-and-splicing-facts-and-hopes-for-cancer-treatment
#19
Charles A Lambert, Nancy Garbacki, Alain C Colige
Alternative promoter usage, alternative splicing and alternative cleavage/polyadenylation (referred here as to alternative transcription and splicing) are main instruments to diversify the transcriptome from a limited set of genes. There is a good deal of evidence that chemotherapeutic drugs affect these processes, but the therapeutic incidence of these effects is poorly documented. The scope of this study is to review the impact of chemotherapy on alternative transcription and splicing and to discuss potential implications in cancer therapy...
April 19, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28433418/binge-alcohol-alters-pnpla3-levels-in-liver-through-epigenetic-mechanism-involving-histone-h3-acetylation
#20
REVIEW
Ricardo J Restrepo, Robert W Lim, Ronald J Korthuis, Shivendra D Shukla
The human PNPLA3 (patatin-like phospholipase domain-containing 3) gene codes for a protein which is highly expressed in adipose tissue and liver, and is implicated in lipid homeostasis. While PNPLA3 protein contains regions homologous to functional lipolytic proteins, the regulation of its tissue expression is reflective of lipogenic genes. A naturally occurring genetic variant of PNPLA3 in humans has been linked to increased susceptibility to alcoholic liver disease. We have examined the modulatory effect of alcohol on PNPLA3 protein and mRNA expression as well as the association of its gene promoter with acetylated histone H3K9 by chromatin immunoprecipitation (ChIP) assay in rat hepatocytes in vitro, and in vivo in mouse and rat models of acute binge, chronic, and chronic followed by acute binge ethanol administration...
March 12, 2017: Alcohol
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