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https://www.readbyqxmd.com/read/28813576/joint-analysis-of-nuclear-and-mitochondrial-variants-in-age-related-macular-degeneration-identifies-novel-loci-trpm1-and-abhd2-rlbp1
#1
Patrice J Persad, Iris M Heid, Daniel E Weeks, Paul N Baird, Eiko K de Jong, Jonathan L Haines, Margaret A Pericak-Vance, William K Scott
Purpose: Presently, 52 independent nuclear single nucleotide polymorphisms (nSNPs) have been associated with age-related macular degeneration (AMD) but their effects do not explain all its variance. Genetic interactions between the nuclear and mitochondrial (mt) genome may unearth additional genetic loci previously unassociated with AMD risk. Methods: Joint effects of nSNPs and selected mtSNPs were analyzed by two degree of freedom (2df) joint tests of association in the International AMD Genomics Consortium (IAMDGC) dataset (17,832 controls and 16,144 advanced AMD cases of European ancestry)...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28813152/coherent-exciton-delocalization-in-a-two-state-dna-templated-dye-aggregate-system
#2
Brittany L Cannon, Donald L Kellis, Lance Kenneth Patten, Paul H Davis, Jeunghoon Lee, Elton Graugnard, Bernard Yurke, William B Knowlton
Coherent exciton delocalization in dye aggregate systems gives rise to a variety of intriguing optical phenomena, including J- and H-aggregate behavior and Davydov splitting. Systems that exhibit coherent exciton delocalization at room temperature are of interest for the development of artificial light-harvesting devices, colorimetric detection schemes, and quantum computers. Here, we report on a simple dye system templated by DNA that exhibits tunable optical properties. At low salt and DNA concentrations, a DNA duplex with two internally functionalized Cy5 dyes (i...
August 16, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28811660/transcription-factor-znf148-is-a-negative-regulator-of-human-muscle-differentiation
#3
Jesse Bakke, William C Wright, Anthony E Zamora, Su Sien Ong, Yue-Ming Wang, Jessica D Hoyer, Christopher T Brewer, Paul G Thomas, Taosheng Chen
Muscle differentiation is a complex process in which muscle progenitor cells undergo determination and eventually cellular fusion. This process is heavily regulated by such master transcription factors as MYOD and members of the MEF2 family. Here, we show that the transcription factor ZNF148 plays a direct role in human muscle cell differentiation. Downregulation of ZNF148 drives the formation of a muscle phenotype with rapid expression of myosin heavy chain, even in proliferative conditions. This phenotype was most likely mediated by the robust and swift upregulation of MYOD and MEF2C...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811029/use-of-diffusive-gradient-in-thin-films-for-in-situ-measurements-a-review-on-the-progress-in-chemical-fractionation-speciation-and-bioavailability-of-metals-in-waters
#4
REVIEW
Amauri Antonio Menegário, Lauren N Marques Yabuki, Karen S Luko, Paul N Williams, Daniel M Blackburn
Chemical fractionation, speciation analysis and bioavailability of metals and metalloids in waters have received increased attention in recent years. However, this interest is not matched by progress in improving species integrity during standard 'grab' sample collection, processing and storage. Time-averaged, low disturbance sampling, in situ, of trace element species, in particular, is a more reliable approach for environmental chemical surveillance and methods based on the diffusive gradients in thin films (DGT) technique stand out as one of the most widely used of the passive sampler classes, and hence will be the primary focus of this review...
August 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28807212/comparison-of-normothermic-and-hypothermic-perfusion-in-porcine-kidneys-donated-after-cardiac-death
#5
Matthew F Blum, Qiang Liu, Basem Soliman, Paul Dreher, Toshihiro Okamoto, Emilio D Poggio, David A Goldfarb, William M Baldwin, Cristiano Quintini
BACKGROUND: Normothermic machine perfusion (NMP) is an alternative strategy for preserving kidneys donated after cardiac death (DCD). The relative efficacy of prolonged NMP compared to hypothermic machine perfusion (HMP) in DCD kidneys with moderate ischemic injury is undetermined. This study compares NMP and HMP kidney preservation in a porcine DCD model. METHODS: Ten porcine kidneys underwent NMP or HMP preservation following 45 minutes of warm ischemia and 5 hours of cold ischemia...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28807001/the-mek-inhibitor-selumetinib-complements-ctla-4-blockade-by-reprogramming-the-tumor-immune-microenvironment
#6
Edmund Poon, Stefanie Mullins, Amanda Watkins, Geoffrey S Williams, Jens-Oliver Koopmann, Gianfranco Di Genova, Marie Cumberbatch, Margaret Veldman-Jones, Shaun E Grosskurth, Vasu Sah, Alwin Schuller, Corrine Reimer, Simon J Dovedi, Paul D Smith, Ross Stewart, Robert W Wilkinson
BACKGROUND: T-cell checkpoint blockade and MEK inhibitor combinations are under clinical investigation. Despite progress elucidating the immuno-modulatory effects of MEK inhibitors as standalone therapies, the impact of MEK inhibition on the activity of T-cell checkpoint inhibitors remains incompletely understood. Here we sought to characterize the combined effects of MEK inhibition and anti-CTLA-4 mAb (anti-CTLA-4) therapy, examining effects on both T-cells and tumor microenvironment (TME)...
August 15, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28806963/effectiveness-outcomes-and-health-related-quality-of-life-impact-of-disease-progression-in-patients-with-advanced-nonsquamous-nsclc-treated-in-real-world-community-oncology-settings-results-from-a-prospective-medical-record-registry-study
#7
Mark S Walker, William Wong, Arliene Ravelo, Paul J E Miller, Lee S Schwartzberg
BACKGROUND: Treatment options for advanced nonsquamous non-small cell lung cancer (NSCLC) in the first line include platinum-based doublet therapy with or without bevacizumab. This study examined efficacy outcomes and patient reported outcomes (PROs) in a community oncology patient sample. METHODS: Advanced nonsquamous NSCLC patients from 34 U.S. community oncology practices treated in first line with bevacizumab regimens (A platinum doublet; gemcitabine doublet; pemetrexed with platinum) or non-bevacizumab regimens (B platinum doublet; gemcitabine doublet; C pemetrexed with platinum) were recruited for this prospective study...
August 14, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28806612/pilots-using-selective-serotonin-reuptake-inhibitors-compared-to-other-fatally-injured-pilots
#8
Paul Rogers, Christy Hileman, Guillermo Salazar, Kacey Cliburn, Lawrence Paskoff, William Hathaway, Kevin Gildea, Victor Hugo Tejera Villalaz
Selective Serotonin Reuptake Inhibitors (SSRI) were a disqualifying medication for U.S. civil pilots before April 5, 2010. After this date, a Federal Aviation Administration policy was created that allowed airmen, on select SSRIs, a pathway to hold a valid medical certificate. The purpose of this study was to provide a detailed look at SSRIs in the U.S. pilot population since the inception of this new policy. We examined the toxicology results from fatally injured airmen in addition to outcomes concerning pilots who are participating in the program...
August 11, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28806116/systemic-therapy-for-stage-iv-non-small-cell-lung-cancer-american-society-of-clinical-oncology-clinical-practice-guideline-update
#9
Nasser Hanna, David Johnson, Sarah Temin, Sherman Baker, Julie Brahmer, Peter M Ellis, Giuseppe Giaccone, Paul J Hesketh, Ishmael Jaiyesimi, Natasha B Leighl, Gregory J Riely, Joan H Schiller, Bryan J Schneider, Thomas J Smith, Joan Tashbar, William A Biermann, Gregory Masters
Purpose Provide evidence-based recommendations updating the 2015 ASCO guideline on systemic therapy for patients with stage IV non-small-cell lung cancer (NSCLC). Methods The ASCO NSCLC Expert Panel made recommendations based on a systematic review of randomized controlled trials from February 2014 to December 2016 plus the Cancer Care Ontario Program in Evidence-Based Care's update of a previous ASCO search. Results This guideline update reflects changes in evidence since the previous guideline update. Fourteen randomized controlled trials provide the evidence base; earlier phase trials also informed recommendation development...
August 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28805829/lineage-specific-dynamic-and-pre-established-enhancer-promoter-contacts-cooperate-in-terminal-differentiation
#10
Adam J Rubin, Brook C Barajas, Mayra Furlan-Magaril, Vanessa Lopez-Pajares, Maxwell R Mumbach, Imani Howard, Daniel S Kim, Lisa D Boxer, Jonathan Cairns, Mikhail Spivakov, Steven W Wingett, Minyi Shi, Zhixin Zhao, William J Greenleaf, Anshul Kundaje, Michael Snyder, Howard Y Chang, Peter Fraser, Paul A Khavari
Chromosome conformation is an important feature of metazoan gene regulation; however, enhancer-promoter contact remodeling during cellular differentiation remains poorly understood. To address this, genome-wide promoter capture Hi-C (CHi-C) was performed during epidermal differentiation. Two classes of enhancer-promoter contacts associated with differentiation-induced genes were identified. The first class ('gained') increased in contact strength during differentiation in concert with enhancer acquisition of the H3K27ac activation mark...
August 14, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28804730/breast-dose-reduction-with-organ-based-wide-angle-tube-current-modulated-ct
#11
Wanyi Fu, Gregory M Sturgeon, Greeshma Agasthya, William Paul Segars, Anuj J Kapadia, Ehsan Samei
This study aimed to estimate the organ dose reduction potential for organ-dose-based tube current modulated (ODM) thoracic computed tomography (CT) with a wide dose reduction arc. Twenty-one computational anthropomorphic phantoms (XCAT) were used to create a virtual patient population with clinical anatomic variations. The phantoms were created based on patient images with normal anatomy (age range: 27 to 66 years, weight range: 52.0 to 105.8 kg). For each phantom, two breast tissue compositions were simulated: [Formula: see text] and [Formula: see text] (glandular-to-adipose ratio)...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28802878/prehospital-sodium-bicarbonate-use-could-worsen-long-term-survival-with-favorable-neurological-recovery-among-patients-with-out-of-hospital-cardiac-arrest
#12
Takahisa Kawano, Brian Grunau, Frank X Scheuermeyer, Koichiro Gibo, William Dick, Christopher B Fordyce, Paul Dorian, Robert Stenstrom, Ronald Straight, Jim Christenson
BACKGROUND: Sodium bicarbonate (SB) is widely used for resuscitation in out-of- hospital cardiac arrest (OHCA); however, its effect on long term outcomes is unclear. METHODS: From 2005 to 2016, we prospectively conducted a province-wide population-based observational study including adult non-traumatic OHCA patients managed by paramedics. SB was administered by paramedics based on their clinical assessments. To examine the association of SB administration and survival and favorable neurological outcome to hospital discharge, defined as modified Rankin scale of 3 or less, we performed a multivariable logistic regression analysis: (1) within propensity score matched comparison groups, and; (2) within the full cohort with missing variables addressed by multiple imputation techniques...
August 9, 2017: Resuscitation
https://www.readbyqxmd.com/read/28798098/erratum-for-duraine-et-al-herpes-simplex-virus-ge-gi-and-us9-promote-both-envelopment-and-sorting-of-virus-particles-in-the-cytoplasm-of-neurons-two-processes-that-precede-anterograde-transport-in-axons
#13
Grayson DuRaine, Todd W Wisner, Paul Howard, Melissa Williams, David C Johnson
No abstract text is available yet for this article.
September 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28797977/variation-in-psoas-muscle-location-relative-to-the-safe-working-zone-for-l4-5-lateral-transpsoas-interbody-fusion-a-morphometric-analysis
#14
Sean M Barber, Zain Boghani, William Steele, J Bob Blacklock, Todd Trask, Paul Holman
No abstract text is available yet for this article.
August 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28797269/a-reduction-in-malaria-transmission-intensity-in-northern-ghana-after-7%C3%A2-years-of-indoor-residual-spraying
#15
Sylvester Coleman, Samuel K Dadzie, Aklilu Seyoum, Yemane Yihdego, Peter Mumba, Dereje Dengela, Philip Ricks, Kristen George, Christen Fornadel, Daniel Szumlas, Paul Psychas, Jacob Williams, Maxwell A Appawu, Daniel A Boakye
BACKGROUND: Indoor residual spraying (IRS) is being implemented as one of the malaria prevention methods in the Northern Region of Ghana. Changes in longevity, sporozoite and entomological inoculation rates (EIRs) of major malaria vectors were monitored to assess the impact of IRS in selected districts. METHODS: Monthly human landing catches (HLCs) were used to collect mosquitoes from sentinel sites in three adjacent districts between July 2009 and December 2014: Savelugu Nanton (SND) where IRS had been implemented from 2008 to 2014; Tolon Kumbungu (TKD) where IRS had been implemented between 2008 and 2012 and Tamale Metropolis (TML) with no history of IRS...
August 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28795846/a-novel-non-opioid-protocol-for-medically-supervised-opioid-withdrawal-and-transition-to-antagonist-treatment
#16
Gregory Rudolf, Jim Walsh, Abigail Plawman, Paul Gianutsos, William Alto, Lloyd Mancl, Vania Rudolf
BACKGROUND: The clinical feasibility of a novel non-opioid and benzodiazepine-free protocol was assessed for the treatment of medically supervised opioid withdrawal and transition to subsequent relapse prevention strategies. METHODS: A retrospective chart review of DSM-IV diagnosed opioid-dependent patients admitted for inpatient medically supervised withdrawal examined 84 subjects (52 males, 32 females) treated with a 4-day protocol of scheduled tizanidine, hydroxyzine, and gabapentin...
August 10, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28795728/the-air-we-breathe-past-present-and-future-general-discussion
#17
Scott Archer-Nicholls, Alexander Archibald, Stephen Arnold, Thorsten Bartels-Rausch, Steven Brown, Lucy J Carpenter, William Collins, Luke Conibear, Ruth Doherty, Rachel Dunmore, Jacinta Edebeli, Morgan Edwards, Mathew Evans, Barbara Finlayson-Pitts, Jacqueline Hamilton, Meredith Hastings, Colette Heald, Dwayne Heard, Markus Kalberer, Christopher Kampf, Astrid Kiendler-Scharr, Daniel Knopf, Jesse Kroll, Forrest Lacey, Jos Lelieveld, Eloise Marais, Jennifer Murphy, Olajide Olawoyin, A Ravishankara, Jonathan Reid, Yinon Rudich, Drew Shindell, Nadine Unger, Andreas Wahner, Timothy J Wallington, Jonathan Williams, Paul Young, Alla Zelenyuk
No abstract text is available yet for this article.
August 10, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28795727/atmospheric-chemistry-and-the-biosphere-general-discussion
#18
Alexander Archibald, Stephen Arnold, Lustinian Bejan, Steven Brown, Martin Brüggemann, Lucy J Carpenter, William Collins, Mathew Evans, Barbara Finlayson-Pitts, Christian George, Meredith Hastings, Dwayne Heard, C N Hewitt, Gabriel Isaacman-VanWertz, Markus Kalberer, Frank Keutsch, Astrid Kiendler-Scharr, Daniel Knopf, Jos Lelieveld, Eloise Marais, Andreas Petzold, A Ravishankara, Jonathan Reid, Grazia Rovelli, Catherine Scott, Tomás Sherwen, Drew Shindell, Liselotte Tinel, Nadine Unger, Andreas Wahner, Timothy J Wallington, Jonathan Williams, Paul Young, Alla Zelenyuk
No abstract text is available yet for this article.
August 10, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28792931/chaotic-dynamics-in-nanoscale-nbo2-mott-memristors-for-analogue-computing
#19
Suhas Kumar, John Paul Strachan, R Stanley Williams
At present, machine learning systems use simplified neuron models that lack the rich nonlinear phenomena observed in biological systems, which display spatio-temporal cooperative dynamics. There is evidence that neurons operate in a regime called the edge of chaos that may be central to complexity, learning efficiency, adaptability and analogue (non-Boolean) computation in brains. Neural networks have exhibited enhanced computational complexity when operated at the edge of chaos, and networks of chaotic elements have been proposed for solving combinatorial or global optimization problems...
August 9, 2017: Nature
https://www.readbyqxmd.com/read/28792208/fiber-coupled-substrate-integrated-hollow-waveguides-an-innovative-approach-to-mid-infrared-remote-gas-sensors
#20
Erhan Tütüncü, Vjekoslav Kokoric, Andreas WIlk, Felicia Seichter, Michael Schmid, William E Hunt, Anastacia M Manuel, Paul Mirkarimi, Jennifer B Alameda, J Chance Carter, Boris Mizaikoff
In this study, an innovative approach based on fiberoptically coupled substrate-integrated hollow waveguide (iHWG) gas cells for the analysis of low sample volumes suitable for remote broad- and narrow-band mid-infrared (MIR; 2.5-20 μm) sensing applications is reported. The feasibility of remotely addressing iHWG gas cells, configured in a double-pass geometry via a reflector, by direct coupling to a 7-around-1 mid-infrared fiber bundle is demonstrated, facilitating low-level hydrocarbon gas analysis. For comparison studies, two iHWGs with substrate dimensions of 50×50×12 mm (L × W × H) and geometric channel lengths of 138 mm and 58...
August 9, 2017: ACS Sensors
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