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https://www.readbyqxmd.com/read/28351058/central-macular-thickness-monitoring-after-a-taxane-based-therapy-in-visually-asymptomatic-patients
#1
Elias Chelala, Nicolas Arej, Joelle Antoun, Hampig Raphael Kourie, Karen Zaarour, Fady Ghassan Haddad, Fadi Farhat, Fadi El Karak, Joseph Kattan
BACKGROUND: Taxanes are drugs used in various chemotherapeutical protocols to treat solid tumors. They have multiple systemic adverse effects, such as bone marrow suppression, alopecia, nausea, and vomiting, and may rarely cause ocular symptoms. In the past decade, a few reported cases have shown the occurrence of a cystoid macular edema with significant visual loss after the use of a taxane-based chemotherapy. The aim of this study was to compare the central macular thickness (CMT) before and after the initiation of a taxane-based therapy in visually asymptomatic patients and to elucidate the possible impact of these drugs on the vision of cancer patients...
March 29, 2017: Chemotherapy
https://www.readbyqxmd.com/read/28351017/performance-of-a-docking-molecular-dynamics-protocol-for-virtual-screening-of-nutlin-class-inhibitors-of-mdmx
#2
Nagakumar Bharatham, Kristin E Finch, Jaeki Min, Anand Mayasundari, Michael A Dyer, R Kiplin Guy, Donald Bashford
A virtual screening protocol involving docking and molecular dynamics has been tested against the results of fluorescence polarization assays testing the potency of a series of compounds of the nutlin class for inhibition of the interaction between p53 and Mdmx, an interaction identified as a driver of certain cancers. The protocol uses a standard docking method (AutoDock) with a cutoff based on the AutoDock score (ADscore), followed by molecular dynamics simulation with a cutoff based on root-mean-square-deviation (RMSD) from the docked pose...
February 24, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28350988/micrornas-establish-uniform-traits-during-the-architecture-of-vertebrate-embryos
#3
Dionna M Kasper, Albertomaria Moro, Emma Ristori, Anand Narayanan, Guillermina Hill-Teran, Elizabeth Fleming, Miguel Moreno-Mateos, Charles E Vejnar, Jing Zhang, Donghoon Lee, Mengting Gu, Mark Gerstein, Antonio Giraldez, Stefania Nicoli
Proper functioning of an organism requires cells and tissues to behave in uniform, well-organized ways. How this optimum of phenotypes is achieved during the development of vertebrates is unclear. Here, we carried out a multi-faceted and single-cell resolution screen of zebrafish embryonic blood vessels upon mutagenesis of single and multi-gene microRNA (miRNA) families. We found that embryos lacking particular miRNA-dependent signaling pathways develop a vascular trait similar to wild-type, but with a profound increase in phenotypic heterogeneity...
March 27, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28350968/induced-pluripotent-stem-cell-derived-cardiomyocytes-cardiac-applications-opportunities-and-challenges
#4
Adrien Moreau, Mohamed Boutjdir, Mohamed Chahine
Chronic diseases are the primary cause of mortality worldwide, accounting for 67% of deaths. One of the major challenges in developing new treatments is the lack of understanding of the exact underlying biological and molecular mechanisms. Chronic cardiovascular diseases are the single most common cause of death worldwide, and sudden deaths due to cardiac arrhythmias account for approximately 50% of all such cases. Traditional genetic screening for genes involved in cardiac disorders is laborious and frequently fails to detect the mutation that explains or causes the disorder...
March 28, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28350959/mapping-of-drug-like-chemical-universe-with-reduced-complexity-molecular-frameworks
#5
Aleksejs Kontijevskis
The emergence of DNA-encoded chemical libraries (DEL) field in past decade has attracted attention of pharmaceutical industry as a powerful mechanism for the discovery of novel drug-like hits for various biological targets. Nuevolution Chemetics technology enables DNA encoded synthesis of billions of chemically diverse drug-like small molecule compounds, and the efficient screening and optimization of these, facilitating effective identification of drug candidates at an unprecedented speed and scale. Although many approaches have been developed by the cheminformatics community for the analysis and visualization of drug-like chemical space, most of them are restricted to the analysis of maximum few millions of compounds and cannot handle collections of 10(8)-10(12) compounds typical for DELs...
March 28, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28350956/improving-the-performance-of-hybrid-functional-based-molecular-dynamics-simulation-through-screening-of-hartree-fock-exchange-forces
#6
Guido Falk von Rudorff, Rasmus Jakobsen, Kevin M Rosso, Jochen Blumberger
Density functional theory-based molecular dynamics calculations of condensed phase systems often benefit from the use of hybrid functionals. However, their use is computationally very demanding and severely limits the system size and time scale that can be simulated. Several methods have been introduced to accelerate hybrid functional molecular dynamics including Schwarz screening and the auxiliary density matrix method (ADMM). Here we present a simple screening scheme that can be applied in addition to these methods...
March 28, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28350954/integrating-drug-s-mode-of-action-into-quantitative-structure-activity-relationships-for-improved-prediction-of-drug-induced-liver-injury
#7
Leihong Wu, Zhichao Liu, Scott S Auerbach, Ruili Huang, Minjun Chen, Kristin McEuen, Joshua Zhihua Xu, Hong Fang, Weida Tong
Drug-induced liver injury (DILI) is complex in mechanism. Different drugs could undergo different mechanisms but result in the same DILI type while the same drug could lead to different DILI types via different mechanisms. Therefore, predicting a drug's potential for DILI should take its underlying mechanisms into consideration. To achieve that, we constructed a novel approach by incorporating drug's Mode of Action (MOA) into Quantitative Structure-Activity Relationship (QSAR) modeling. This MOA-DILI approach was examined using a dataset of 333 drugs...
March 28, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28350942/prevention-of-surgical-site-infection-in-spine-surgery
#8
Paul A Anderson, Jason W Savage, Alexander R Vaccaro, Kristen Radcliff, Paul M Arnold, Brandon D Lawrence, Mohammed F Shamji
BACKGROUND: Spine surgery is complicated by an incidence of 1% to 9% of surgical site infection (SSI). The most common organisms are gram-positive bacteria and are endogenous, that is are brought to the hospital by the patient. Efforts to improve safety have been focused on reducing SSI using a bundle approach. The bundle approach applies many quality improvement efforts and has been shown to reduce SSI in other surgical procedures. OBJECTIVE: To provide a narrative review of practical solutions to reduce SSI in spine surgery...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350936/screening-for-celiac-disease-us-preventive-services-task-force-recommendation-statement
#9
Kirsten Bibbins-Domingo, David C Grossman, Susan J Curry, Michael J Barry, Karina W Davidson, Chyke A Doubeni, Mark Ebell, John W Epling, Jessica Herzstein, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, Maureen G Phipps, Michael Silverstein, Melissa A Simon, Chien-Wen Tseng
Importance: Celiac disease is caused by an immune response in persons who are genetically susceptible to dietary gluten, a protein complex found in wheat, rye, and barley. Ingestion of gluten by persons with celiac disease causes immune-mediated inflammatory damage to the small intestine. Objective: To issue a new US Preventive Services Task Force (USPSTF) recommendation on screening for celiac disease. Evidence Review: The USPSTF reviewed the evidence on the accuracy of screening in asymptomatic adults, adolescents, and children; the potential benefits and harms of screening vs not screening and targeted vs universal screening; and the benefits and harms of treatment of screen-detected celiac disease...
March 28, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28350935/screening-for-celiac-disease-evidence-report-and-systematic-review-for-the-us-preventive-services-task-force
#10
Roger Chou, Christina Bougatsos, Ian Blazina, Katherine Mackey, Sara Grusing, Shelley Selph
Importance: Silent or subclinical celiac disease may result in potentially avoidable adverse health consequences. Objective: To review the evidence on benefits and harms of screening for celiac disease in asymptomatic adults, adolescents, and children 3 years and older for the US Preventive Services Task Force. Data Sources: Ovid MEDLINE, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews, searched to June 14, 2016...
March 28, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28350930/screening-for-celiac-disease
#11
Jill Jin
No abstract text is available yet for this article.
March 28, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28350906/the-us-preventive-services-task-force-recommendation-on-screening-for-asymptomatic-celiac-disease-a-dearth-of-evidence
#12
Rok Seon Choung, Joseph A Murray
No abstract text is available yet for this article.
March 28, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28350845/abnormal-expression-of-mrna-microrna-alteration-and-aberrant-dna-methylation-patterns-in-rectal-adenocarcinoma
#13
Yang Hua, Xiukun Ma, Xianglong Liu, Xiangfei Yuan, Hai Qin, Xipeng Zhang
AIM: Rectal adenocarcinoma (READ) is a malignancy cancer with the high morbidity and motility worldwide. Our study aimed to explore the potential pathogenesis of READ through integrated analysis of gene expression profiling and DNA methylation data. METHODS: The miRNA, mRNA expression profiling and corresponding DNA methylation data were downloaded from The Cancer Genome Atlas (TCGA) database. Differentially expressed mRNAs/ miRNAs/methylated regions (DEmRNA/DEmiRNAs) were identified in READ...
2017: PloS One
https://www.readbyqxmd.com/read/28350843/high-hiv-prevalence-and-incidence-among-women-in-southern-mozambique-evidence-from-the-mdp-microbicide-feasibility-study
#14
Sibone Mocumbi, Mitzy Gafos, Khatia Munguambe, Ruth Goodall, Sheena McCormack
BACKGROUND: The study aimed to assess the feasibility of conducting large scale HIV prevention clinical trials in Mozambique by measuring HIV prevalence and incidence among women of reproductive age. This paper describes the baseline socio-demographic characteristics of the Mozambique Microbicides Development Programme (MDP) feasibility cohort, baseline prevalence of HIV and other STIs, and HIV incidence. METHODS: The Mozambique MDP feasibility study was conducted from September 2007 to August 2009 in urban Mavalane and rural Manhiça, in Southern Mozambique...
2017: PloS One
https://www.readbyqxmd.com/read/28350812/sports-related-sudden-cardiac-deaths-in-the-young-population-of-switzerland
#15
Babken Asatryan, Cristina Vital, Christoph Kellerhals, Argelia Medeiros-Domingo, Christoph Gräni, Lukas D Trachsel, Christian M Schmied, Ardan M Saguner, Prisca Eser, David Herzig, Stephan Bolliger, Katarzyna Michaud, Matthias Wilhelm
BACKGROUND: In Switzerland, ECG screening was first recommended for national squad athletes in 1998. Since 2001 it has become mandatory in selected high-risk professional sports. Its impact on the rates of sports-related sudden cardiac death (SCD) is unknown. OBJECTIVE: We aimed to study the incidence, causes and time trends of sports-related SCD in comparison to SCD unrelated to exercise in Switzerland. METHODS: We reviewed all forensic reports of SCDs of the German-speaking region of Switzerland in the age group of 10 to 39 years, occurring between 1999 and 2010...
2017: PloS One
https://www.readbyqxmd.com/read/28350801/app-psen1-and-psen2-mutations-in-early-onset-alzheimer-disease-a-genetic-screening-study-of-familial-and-sporadic-cases
#16
Hélène-Marie Lanoiselée, Gaël Nicolas, David Wallon, Anne Rovelet-Lecrux, Morgane Lacour, Stéphane Rousseau, Anne-Claire Richard, Florence Pasquier, Adeline Rollin-Sillaire, Olivier Martinaud, Muriel Quillard-Muraine, Vincent de la Sayette, Claire Boutoleau-Bretonniere, Frédérique Etcharry-Bouyx, Valérie Chauviré, Marie Sarazin, Isabelle le Ber, Stéphane Epelbaum, Thérèse Jonveaux, Olivier Rouaud, Mathieu Ceccaldi, Olivier Félician, Olivier Godefroy, Maite Formaglio, Bernard Croisile, Sophie Auriacombe, Ludivine Chamard, Jean-Louis Vincent, Mathilde Sauvée, Cecilia Marelli-Tosi, Audrey Gabelle, Canan Ozsancak, Jérémie Pariente, Claire Paquet, Didier Hannequin, Dominique Campion
BACKGROUND: Amyloid protein precursor (APP), presenilin-1 (PSEN1), and presenilin-2 (PSEN2) mutations cause autosomal dominant forms of early-onset Alzheimer disease (AD-EOAD). Although these genes were identified in the 1990s, variant classification remains a challenge, highlighting the need to colligate mutations from large series. METHODS AND FINDINGS: We report here a novel update (2012-2016) of the genetic screening of the large AD-EOAD series ascertained across 28 French hospitals from 1993 onwards, bringing the total number of families with identified mutations to n = 170...
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28350782/acknowledging-the-risk-for-traumatic-brain-injury-in-women-veterans
#17
Timothy Amoroso, Katherine M Iverson
Since the Iraq and Afghanistan wars began, an unprecedented number of women have been engaging in combat operations. Likewise, the number of women using Department of Veterans Affairs (VA) services has doubled since 2001. Military service, and deployment to combat in particular, poses certain risks for traumatic brain injury (TBI)-for all service members. However, women may have additional military and nondeployment risk factors such as intimate partner violence (IPV). We briefly review the definition and classification issues related to TBI, as well as common acute and chronic health symptoms after TBI...
April 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28350753/what-to-eat-and-drink-in-the-festive-season-a-pan-european-observational-cross-sectional-study
#18
Helen L Parker, Jelena Curcic, Henriette Heinrich, Matthias Sauter, Michael Hollenstein, Werner Schwizer, Edoardo Savarino, Mark Fox
BACKGROUND: Digestive discomfort after meals is common in the community, especially during the festive season. It is uncertain whether this is related to intake of either high-calorie or high-fat foods or, alternatively, intake of specific foods. This prospective, cross-sectional study tested the hypothesis that the risk of reflux or dyspepsia is associated with the fat content of the meal independent of caloric load in a 'real-life' setting. MATERIALS AND METHODS: Four festive meals were served to delegates attending a conference on four consecutive days...
May 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28350724/prevalence-and-predictors-of-unsatisfactory-anal-cytology-tests-in-a-cohort-of-gay-and-bisexual-men-in-sydney-australia-baseline-findings-from-the-study-of-the-prevention-of-anal-cancer-spanc
#19
David J Templeton, Jennifer M Roberts, I Mary Poynten, Carmella Law, Richard J Hillman, Annabelle Farnsworth, Christopher K Fairley, Sepehr N Tabrizi, Suzanne M Garland, Andrew E Grulich, Fengyi Jin
Anal cytology has been suggested as a screening test for the anal cancer precursor high-grade squamous intraepithelial lesion (HSIL). We aimed to assess the prevalence and predictors of initial unsatisfactory anal cytology tests ('unsats'). The Study of the Prevention of Anal Cancer is a natural history study of anal human papillomavirus (HPV) and precancerous lesions among gay and bisexual men (GBM) of at least 35 years in Sydney, Australia. At each study visit, an anal swab is collected for cytological testing...
May 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28350699/rapid-analysis-of-239-238pu-241am-and-90sr-for-nasal-smear-samples-in-radiation-emergency-and-evaluation-of-intake-retention-fraction
#20
Seokwon Yoon, Wi-Ho Ha, Sunhoo Park, Seung-Sook Lee, Young-Woo Jin
The efficiency of the nasal smear method was reviewed to perform a method of sample collection, analysis and initial dose estimation. The screening method of alpha-emitting radionuclides using chemical separation and alpha spectrometry was also studied. To rapidly conduct the appropriate response to victims, special monitoring for Pu, Am, and Sr using sequential analysis was established, and the method was successfully validated through participation in an international inter-comparison program. The duration of the analysis method was evaluated with regard to application in emergency situations because of its relatively rapid treatment and counting time...
May 2017: Health Physics
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