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John Martin

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https://www.readbyqxmd.com/read/29217570/a-precise-measurement-of-the-magnetic-field-in-the-corona-of-the-black-hole-binary-v404-cygni
#1
Yigit Dallilar, Stephen S Eikenberry, Alan Garner, Richard D Stelter, Amy Gottlieb, Poshak Gandhi, Piergiorgio Casella, Vik S Dhillon, Tom R Marsh, Stuart P Littlefair, Liam Hardy, Rob Fender, Kunal Mooley, Dominic J Walton, Felix Fuerst, Matteo Bachetti, A J Castro-Tirado, Miguel Charcos, Michelle L Edwards, Nestor M Lasso-Cabrera, Antonio Marin-Franch, S Nicholas Raines, Kendall Ackley, John G Bennett, A Javier Cenarro, Brian Chinn, H Veronica Donoso, Raymond Frommeyer, Kevin Hanna, Michael D Herlevich, Jeff Julian, Paola Miller, Scott Mullin, Charles H Murphey, Chris Packham, Frank Varosi, Claudia Vega, Craig Warner, A N Ramaprakash, Mahesh Burse, Sujit Punnadi, Pravin Chordia, Andreas Gerarts, Héctor de Paz Martín, María Martín Calero, Riccardo Scarpa, Sergio Fernandez Acosta, William Miguel Hernández Sánchez, Benjamin Siegel, Francisco Francisco Pérez, Himar D Viera Martín, José A Rodríguez Losada, Agustín Nuñez, Álvaro Tejero, Carlos E Martín González, César Cabrera Rodríguez, Jordi Molgó, J Esteban Rodriguez, J Israel Fernández Cáceres, Luis A Rodríguez García, Manuel Huertas Lopez, Raul Dominguez, Tim Gaggstatter, Antonio Cabrera Lavers, Stefan Geier, Peter Pessev, Ata Sarajedini
Observations of binary stars containing an accreting black hole or neutron star often show x-ray emission extending to high energies (>10 kilo--electron volts), which is ascribed to an accretion disk corona of energetic particles akin to those seen in the solar corona. Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its 2015 outburst, we present a precise 461 ± 12 gauss magnetic field measurement in the corona...
December 8, 2017: Science
https://www.readbyqxmd.com/read/29217376/safety-tolerability-and-immunogenicity-of-two-zika-virus-dna-vaccine-candidates-in-healthy-adults-randomised-open-label-phase-1-clinical-trials
#2
Martin R Gaudinski, Katherine V Houser, Kaitlyn M Morabito, Zonghui Hu, Galina Yamshchikov, Ro Shauna Rothwell, Nina Berkowitz, Floreliz Mendoza, Jamie G Saunders, Laura Novik, Cynthia S Hendel, LaSonji A Holman, Ingelise J Gordon, Josephine H Cox, Srilatha Edupuganti, Monica A McArthur, Nadine G Rouphael, Kirsten E Lyke, Ginny E Cummings, Sandra Sitar, Robert T Bailer, Bryant M Foreman, Katherine Burgomaster, Rebecca S Pelc, David N Gordon, Christina R DeMaso, Kimberly A Dowd, Carolyn Laurencot, Richard M Schwartz, John R Mascola, Barney S Graham, Theodore C Pierson, Julie E Ledgerwood, Grace L Chen
BACKGROUND: The Zika virus epidemic and associated congenital infections have prompted rapid vaccine development. We assessed two new DNA vaccines expressing premembrane and envelope Zika virus structural proteins. METHODS: We did two phase 1, randomised, open-label trials involving healthy adult volunteers. The VRC 319 trial, done in three centres, assessed plasmid VRC5288 (Zika virus and Japanese encephalitis virus chimera), and the VRC 320, done in one centre, assessed plasmid VRC5283 (wild-type Zika virus)...
December 4, 2017: Lancet
https://www.readbyqxmd.com/read/29215211/a-study-of-hormonal-effects-in-cervical-smear-samples-using-raman-spectroscopy
#3
Damien Traynor, Padraig Kearney, Ines Ramos, Cara M Martin, John J O'Leary, Fiona M Lyng
Raman spectroscopy is a powerful tool that has the potential to be used as a screening method for cervical cancer. It is a label free, low cost method providing a biochemical fingerprint of a given sample. The objective of this study was to address patient to patient variability contributed by hormonal effects due to the menstrual cycle, the use of hormone based contraceptives and the onset of menopause, and to determine if these changes would affect the ability to successfully identify dyskaryotic cells. Raman spectra were recorded from unstained ThinPrep cervical samples (45 cytology negative and 15 high grade dyskaryosis (high grade squamous intraepithelial lesion (SIL)) samples using a HORIBA Jobin Yvon XploRA™ system...
December 7, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/29214976/stray-cats-are-more-frequently-infected-with-zoonotic-protists-than-pet-cats
#4
Martin Kvac, Lada Hofmannova, Ynes Ortega, Nikola Holubova, Michaela Horcickova, Marta Kicia, Lenka Hlaskova, Dana Kvetonova, Bohumil Sak, John McEvoy
Faecal samples were collected from cats kept as pets (n = 120) and stray cats (n = 135) in Central Europe (Czech Republic, Poland and Slovakia) and screened for the presence of Cryptosporidium spp., Giardia intestinalis (Kunstler, 1882), Encephalitozoon spp. and Enterocytozoon bieneusi Desportes, Le Charpentier, Galian, Bernard, Cochand-Priollet, Lavergne, Ravisse et Modigliani, 1985 by PCR analysis of the small-subunit of rRNA (Cryptosporidium spp. and G. intestinalis) and ITS (microsporidia) genes. Sequence analysis of targeted genes revealed the presence of C...
December 6, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/29214444/the-respiratory-rate-a-neglected-triage-tool-for-pre-hospital-identification-of-trauma-patients
#5
John D Yonge, Phillip Kemp Bohan, Justin J Watson, Christopher R Connelly, Lynn Eastes, Martin A Schreiber
BACKGROUND: Under-triaged trauma patients have worse clinical outcomes. We evaluated the capability of four pre-hospital variables to identify this population at the lowest level trauma activation (level 3). METHODS: A retrospective review of adult trauma activations from 2004 to 2014 was completed. Pre-hospital vital signs and Glasgow Coma Scale were converted to categorical variables. Patients were under-triaged based on meeting current level 1 or 2 criteria, or requiring a pre-defined critical intervention...
December 6, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29213267/revealing-the-complexity-in-cd8-t-cell-responses-to-infection-in-inbred-c57b-6-versus-outbred-swiss-mice
#6
Matthew D Martin, Derek B Danahy, Stacey M Hartwig, John T Harty, Vladimir P Badovinac
Recent work has suggested that current mouse models may underrepresent the complexity of human immune responses. While most mouse immunology studies utilize inbred mouse strains, it is unclear if conclusions drawn from inbred mice can be extended to all mouse strains or generalized to humans. We recently described a "surrogate activation marker" approach that could be used to track polyclonal CD8 T cell responses in inbred and outbred mice and noted substantial discord in the magnitude and kinetics of CD8 T cell responses in individual outbred mice following infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29212820/vision-in-former-very-low-birthweight-young-adults-with-and-without-retinopathy-of-prematurity-compared-with-term-born-controls-the-nz-1986-vlbw-follow-up-study
#7
Brian A Darlow, Mark J Elder, Bridget Kimber, Julia Martin, L John Horwood
OBJECTIVE: There are few data on visual outcomes in adulthood of former very low birthweight (VLBW; <1500 g) infants. We aimed to assess vision at 27-29 years in a national cohort of VLBW infants born in 1986 and assessed for retinopathy of prematurity (ROP) when no treatment was available, compared with term born controls. METHODS: The cohort and controls attended a 2-day assessment in Christchurch as part of a larger study. Visual assessment included glasses prescription measured by focimeter, logarithm of the minimum angle of resolution (logMAR) distance visual acuity (VA), contrast sensitivity, autorefraction, retinal photographs and a questionnaire on vision-related everyday activities...
December 6, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29212544/plaque-volume-and-plaque-risk-profile-in-diabetic-vs-non-diabetic-patients-undergoing-lipid-lowering-therapy-a-study-based-on-3d-intravascular-ultrasound-and-virtual-histology
#8
Tomas Kovarnik, Zhi Chen, Gary S Mintz, Andreas Wahle, Kristyna Bayerova, Ales Kral, Martin Chval, Karel Kopriva, John Lopez, Milan Sonka, Ales Linhart
BACKGROUND: Coronary atherosclerosis progresses faster in patients with diabetes mellitus (DM) and causes higher morbidity and mortality in such patients compared to non-diabetics ones (non-DM). We quantify changes in plaque volume and plaque phenotype during lipid-lowering therapy in DM versus non-DM patients using advanced intracoronary imaging. METHODS: We analyzed data from 61 patients with stable angina pectoris included to the PREDICT trial searching for prediction of plaque changes during intensive lipid-lowering therapy (40 mg rosuvastatin daily)...
December 7, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29211475/optimization-of-orally-bioavailable-enhancer-of-zeste-homolog-2-ezh2-inhibitors-using-ligand-and-property-based-design-strategies-identification-of-development-candidate-r-5-8-dichloro-7-methoxy-oxetan-3-yl-methyl-2-4-methoxy-6-methyl-2-oxo-1-2-dihydropyridin
#9
Pei-Pei Kung, Patrick Bingham, Alexei Brooun, Michael R Collins, Ya-Li Deng, Dac M Dinh, Connie Fan, Ketan S Gajiwala, Rita Grantner, Hovhannes J Gukasyan, Wenyue Hu, Buwen Huang, Robert S Kania, Susan E Kephart, Cody T Krivacic, Robert A Kumpf, Penney Khamphavong, Manfred Kraus, Wei Liu, Karen A Maegley, Lisa Nguyen, Shijian Ren, Daniel Tyler Richter, Robert A Rollins, Neal W Sach, Shikhar Sharma, John Sherrill, Jillian E Spangler, Albert E Stewart, Scott C Sutton, Sean Uryu, Dominique Verhelle, Hui Wang, Shuiwang Wang, Martin Wythes, Shuibo Xin, Shinji Yamazaki, Huichun Zhu, Jinjiang Zhu, Luke Zehnder, Martin P Edwards
A new series of lactam-derived EZH2 inhibitors was designed via a ligand- and physicochemical property-based strategy to address metabolic stability and thermodynamic solubility issues associated with previous lead compound 1. The new inhibitors incorporated an sp3 hybridized carbon atom at the 7-position of the lactam moiety present in lead compound 1 as a replacement for a dimethylisoxazole group. This transformation enabled optimization of the physicochemical properties and potency compared to compound 1...
December 6, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29210349/high-prevalence-of-shigella-or-enteroinvasive-escherichia-coli-carriage-among-residents-of-an-internally-displaced-persons-camp-in-south-sudan
#10
Jesse Bliss, Malika Bouhenia, Peter Hale, Brianne A Couturier, Anita S Iyer, John Rumunu, Stephen Martin, Joseph F Wamala, Abdinasir Abubakar, David A Sack, Francisco J Luquero, Marc Roger Couturier, Andrew S Azman, Daniel T Leung
Displaced persons living in camps are at an increased risk of diarrheal diseases. Subclinical carriage of pathogens may contribute to the spread of disease, especially for microbes that require a low infectious dose. Multiplex real-time polymerase chain reaction was performed to detect a panel of 20 bacterial, viral, and protozoal targets, and we report a high prevalence of enteropathogen carriage, including Shigella spp. or enteroinvasive Escherichia coli in 14%, among a sample of 88 asymptomatic individuals in an internally displaced persons camp in South Sudan...
December 4, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29209235/the-endless-trip-among-the-nps-users-psychopathology-and-psychopharmacology-in-the-hallucinogen-persisting-perception-disorder-a-systematic-review
#11
REVIEW
Laura Orsolini, Gabriele Duccio Papanti, Domenico De Berardis, Amira Guirguis, John Martin Corkery, Fabrizio Schifano
Hallucinogen-persisting perception disorder (HPPD) is a syndrome characterized by prolonged or reoccurring perceptual symptoms, reminiscent of acute hallucinogen effects. HPPD was associated with a broader range of LSD (lysergic acid diethylamide)-like substances, cannabis, methylenedioxymethamphetamine (MDMA), psilocybin, mescaline, and psychostimulants. The recent emergence of novel psychoactive substances (NPS) posed a critical concern regarding the new onset of psychiatric symptoms/syndromes, including cases of HPPD...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29208743/latency-associated-expression-of-human-cytomegalovirus-us28-attenuates-cell-signaling-pathways-to-maintain-latent-infection
#12
Benjamin A Krishna, Emma L Poole, Sarah E Jackson, Martine J Smit, Mark R Wills, John H Sinclair
Reactivation of human cytomegalovirus (HCMV) latent infection from early myeloid lineage cells constitutes a threat to immunocompromised or immune-suppressed individuals. Consequently, understanding the control of latency and reactivation to allow targeting and killing of latently infected cells could have far-reaching clinical benefits. US28 is one of the few viral genes that is expressed during latency and encodes a cell surface G protein-coupled receptor (GPCR), which, during lytic infection, is a constitutive cell-signaling activator...
December 5, 2017: MBio
https://www.readbyqxmd.com/read/29208669/vimentin-is-required-for-lung-adenocarcinoma-metastasis-via-heterotypic-tumor-cell-cancer-associated-fibroblast-interactions-during-collective-invasion
#13
Alessandra M Richardson, Lauren Havel, Allyson E Koyen, Jessica M Konen, John A Shupe, W G Wiles, W David Martin, Hans Grossniklaus, Gabriel L Sica, Melissa Gilbert-Ross, Adam Marcus
PURPOSE: Vimentin is an epithelial to mesenchymal transition (EMT) biomarker and intermediate filament protein that functions during cell migration to maintain structure and motility. Despite the abundance of clinical data linking vimentin to poor patient outcome, it is unclear if vimentin is required for metastasis or is a correlative biomarker. We developed a novel genetically engineered mouse model (GEMM) to probe vimentin in lung adenocarcinoma metastasis. EXPERIMENTAL DESIGN: We used the LSL-Kras G12D/Lkb1 fl/fl/Vim-/-model (KLV-/-), which incorporates a whole-body knockout of vimentin and is derived from the Cre-dependent LSL-Kras G12D/Lkb1 fl/fl model (KLV+/+)...
December 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29208046/short-form-version-of-the-quality-of-trauma-care-patient-reported-experience-measure-sf-qtac-prem
#14
Niklas Bobrovitz, Maria J Santana, Jamie Boyd, Theresa Kline, John Kortbeek, Sandy Widder, Kevin Martin, Henry T Stelfox
OBJECTIVE: To enable the valid and reliable measurement of patient experiences we previously published a multicenter multi-center validation of the Quality of Trauma Care Patient-Reported Experience Measure (QTAC-PREM). The purpose of this study was to derive a simplified, short form version of the QTAC-PREM to further enhance the feasibility of measuring patient experiences in injury care. To identify candidate items for the short form we reviewed the results of the original multi-center long form validation cohort study, which included 400 injury care patients and their family members recruited from three trauma centers...
December 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29207374/age-related-gene-expression-changes-and-transcriptome-wide-association-study-of-physical-and-cognitive-aging-traits-in-the-lothian-birth-cohort-1936
#15
Sarah E Harris, Valentina Riggio, Louise Evenden, Tamara Gilchrist, Sarah McCafferty, Lee Murphy, Nicola Wrobel, Adele M Taylor, Janie Corley, Alison Pattie, Simon R Cox, Carmen Martin-Ruiz, James Prendergast, John M Starr, Riccardo E Marioni, Ian J Deary
Gene expression is influenced by both genetic variants and the environment. As individuals age, changes in gene expression may be associated with decline in physical and cognitive abilities. We measured transcriptome-wide expression levels in lymphoblastoid cell lines derived from members of the Lothian Birth Cohort 1936 at mean ages 70 and 76 years. Changes in gene expression levels were identified for 1,741 transcripts in 434 individuals. Gene Ontology enrichment analysis indicated an enrichment of biological processes involved in the immune system...
December 1, 2017: Aging
https://www.readbyqxmd.com/read/29207087/p-stat3-in-luminal-breast-cancer-integrated-rna-protein-pooled-analysis-and-results-from-the-big-2-98-phase-iii-trial
#16
Amir Sonnenblick, Roberto Salgado, Sylvain Brohée, Tamar Zahavi, Tamar Peretz, Gert Van den Eynden, Ghizlane Rouas, Asher Salmon, Prudence A Francis, Angelo Di Leo, John P A Crown, Giuseppe Viale, Laura Daly, Bahar Javdan, Sho Fujisawa, Evandro De Azambuja, Ameye Lieveke, Martine J Piccart, Jacqueline F Bromberg, Christos Sotiriou
In the present study, in order to investigate the role of signal transducer and activator of transcription 3 (STAT3) in estrogen receptor (ER)-positive breast cancer prognosis, we evaluated the phosphorylated STAT3 (p-STAT3) status and investigated its effect on the outcome in a pooled analysis and in a large prospective adjuvant trial. By using the TCGA repository, we developed gene signatures that reflected the level of p-STAT3. Using pooled analysis of the expression data from luminal breast cancer patients, we assessed the effects of the p-STAT3 expression signature on prognosis...
November 27, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29206104/science-forum-the-human-cell-atlas
#17
Aviv Regev, Sarah A Teichmann, Eric S Lander, Ido Amit, Christophe Benoist, Ewan Birney, Bernd Bodenmiller, Peter J Campbell, Piero Carninci, Menna Clatworthy, Hans Clevers, Bart Deplancke, Ian Dunham, James Eberwine, Roland Eils, Wolfgang Enard, Andrew Farmer, Lars Fugger, Berthold Göttgens, Nir Hacohen, Muzlifah Haniffa, Martin Hemberg, Seung K Kim, Paul Klenerman, Arnold Kriegstein, Ed Lein, Sten Linnarsson, Emma Lundberg, Joakim Lundeberg, Partha Majumder, John C Marioni, Miriam Merad, Musa Mhlanga, Martijn Nawijn, Mihai Netea, Garry Nolan, Dana Pe'er, Anthony Phillipakis, Chris P Ponting, Stephen R Quake, Wolf Reik, Orit Rozenblatt-Rosen, Joshua R Sanes, Rahul Satija, Ton N Schumacher, Alex K Shalek, Ehud Shapiro, Padmanee Sharma, Jay W Shin, Oliver Stegle, Michael R Stratton, Michael J T Stubbington, Fabian J Theis, Matthias Uhlen, Alexander van Oudenaarden, Allon Wagner, Fiona M Watt, Jonathan S Weissman, Barbara J Wold, Ramnik J Xavier, Nir Yosef
The recent advent of methods for high-throughput single-cell molecular profiling has catalyzed a growing sense in the scientific community that the time is ripe to complete the 150-year-old effort to identify all cell types in the human body. The Human Cell Atlas Project is an international collaborative effort that aims to define all human cell types in terms of distinctive molecular profiles (such as gene expression profiles) and to connect this information with classical cellular descriptions (such as location and morphology)...
December 5, 2017: ELife
https://www.readbyqxmd.com/read/29205472/progressive-deafness-dystonia-due-to-serac1-mutations-a-study-of-67-cases
#18
Saskia B Wortmann, Katarzyna Iwanicka-Pronicka, Sema Kalkan Ucar, Bader Alhaddad, Moeenaldeen AlSayed, Mohammed A Al-Owain, Hamad I Al-Zaidan, Shanti Balasubramaniam, Ivo Barić, Dalal Bubshait, Alberto Burlina, John Christodoulou, Wendy K Chung, Roberto Colombo, Niklas Darin, Peter Freisinger, Maria Teresa Garcia Silva, Stephanie Grunewald, Tobias B Haack, Peter M van Hasselt, Omar Hikmat, Friederike Hörster, Pirjo Isohanni, Khushnooda Ramzan, Reka Kovacs-Nagy, Zita Krumina, Elena Martin-Hernandez, Johannes A Mayr, Patricia McClean, Linda De Meirleir, Karin Naess, Lock H Ngu, Magdalena Pajdowska, Shamima Rahman, Gillian Riordan, Lisa Riley, Benjamin Roeben, Frank Rutsch, Rene Santer, Manuel Schiff, Martine Seders, Silvia Sequeira, Wolfgang Sperl, Christian Staufner, Matthis Synofzik, Robert W Taylor, Joanna Trubicka, Konstantinos Tsiakas, Ozlem Unal, Evangeline Wassmer, Yehani Wedatilake, Toni Wolff, Holger Prokisch, Eva Morava, Ewa Pronicka, Ron A Wevers, Arjan P de Brouwer, Roeltje R Maas
OBJECTIVE: 3-MEthylGlutaconic aciduria, Dystonia-Deafness, Hepatopathy, Encephalopathy, Leigh-like syndrome (MEGDHEL) syndrome is caused by biallelic variants in SERAC1. METHODS: Multi centre study concerning the course of disease for each organ system, together with metabolic, neuroradiological and genetic findings. RESULTS: 67 individuals (39 previously unreported) from 59 families were included (age range 5 days - 33.4 years, median age 9 years)...
December 2, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29205173/roadmap-on-semiconductor-cell-biointerfaces
#19
Bozhi Tian, John A Rogers, Peidong Yang, Zhenan Bao, Nicholas A Melosh, Alon Gorodetsky, Timothy Lu, Polina Anikeeva, Michal Cifra, Stefano Cestellos-Blanco, Joao Carvalho-de-Souza, Francisco Bezanilla, Jia Liu, Martin Hjort, Yuhong Cao, Guglielmo Lanzani, Fabio Benfenati, Giulia Galli, Francois Gygi, Rylan Kautz, Samuel Sungil Kim, Ondrej Krivosudský, Daniel Havelka, Yuanwen Jiang, Shuai Xu
This roadmap outlines the role semiconductor-based materials play in understanding the complex biophysical dynamics at multiple length scales, as well as the design and implementation of next-generation electronic, optoelectronic, and mechanical devices for biointerfaces. The roadmap emphasizes the advantages of semiconductor building blocks in interfacing, monitoring, and manipulating the activity of biological components, and discusses the possibility of using active semiconductor-cell interfaces for discovering new signaling processes in the biological world...
December 5, 2017: Physical Biology
https://www.readbyqxmd.com/read/29204932/a-retrospective-cohort-study-of-patients-treated-with-anti-tuberculous-therapy-for-presumed-ocular-tuberculosis
#20
Erika Marie Damato, Sarah Dawson, Xiaoxuan Liu, Chandoshi Mukherjee, John Horsburgh, Alastair K Denniston, Edward Moran, Martin Dedicoat, Philip Ian Murray
BACKGROUND: Uveitis involving the posterior segment is a significant and potentially blinding condition. The diagnosis and treatment of patients with uveitis associated with tuberculosis remains controversial, and commonly, patients are systemically well. Use of the interferon-gamma release assays has added to the controversy, as the significance of a positive test may be uncertain. We aim to report the outcomes of anti-tuberculous treatment in a cohort of patients treated in Birmingham, for presumed "ocular tuberculosis", based on clinical findings, systemic assessment and specific testing for tuberculosis...
December 4, 2017: Journal of Ophthalmic Inflammation and Infection
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