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https://www.readbyqxmd.com/read/28641250/deep-convolutional-neural-network-for-inverse-problems-in-imaging
#1
Kyong Hwan Jin, Michael T McCann, Emmanuel Froustey, Michael Unser
In this paper, we propose a novel deep convolutional neural network (CNN)-based algorithm for solving ill-posed inverse problems. Regularized iterative algorithms have emerged as the standard approach to ill-posed inverse problems in the past few decades. These methods produce excellent results, but can be challenging to deploy in practice due to factors including the high computational cost of the forward and adjoint operators and the difficulty of hyper parameter selection. The starting point of our work is the observation that unrolled iterative methods have the form of a CNN (filtering followed by point-wise nonlinearity) when the normal operator ( H*H where H* is the adjoint of the forward imaging operator, H ) of the forward model is a convolution...
June 15, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28641210/comparative-analysis-of-polyspecificity-of-the-endogenous-trna-synthetase-of-different-expression-host-towards-photocrosslinking-amino-acids-using-an-in-silico-approach
#2
Nadarajan Saravanan Prabhu, Hyungdon Yun
Photo-induced covalent crosslinking has emerged as the powerful strategy for analyzing and characterizing the protein-protein interaction and mapping protein 3D conformations. In the last decades, a number of photocrosslinking amino acids have been reported but only a few have been efficiently utilized for photocrosslinking purposes. Recently, incorporation of diazirine containing photoactivatable analogs such as photo-methionine, photo-leucine, photo-isoleucine and photo-lysine into target proteins were accomplished in live cells (Human A549cells, HEK 293) by depleting corresponding natural amino acid and supplementing these analogs in the medium...
June 8, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28641169/association-between-switching-antiepileptic-drug-products-and-healthcare-utilization-a-systematic-review
#3
REVIEW
Patrick Kwan, André Palmini
AIMS: There is ongoing concern whether switching between different antiepileptic drug (AED) products may compromise patient care. We systematically reviewed changes in healthcare utilization following AED switch. METHODS: We searched MEDLINE and EMBASE databases (1980-October 2016) for studies that assessed the effect of AED switching in patients with epilepsy on outpatient visits, emergency room visits, hospitalization and hospital stay duration. RESULTS: A total of 14 articles met the inclusion criteria...
June 19, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28641133/abc-transporters-in-megakaryopoiesis-and-platelet-activity
#4
REVIEW
Wei Wang, Lorena Buitrago, Ying Wang
ATP-binding cassette (ABC) is a family of transporters that facilitates the translocation of substrates across cell membrane using its ATPase subunit. These transporters have key roles in multidrug resistance, lipid homeostasis, antigen processing, immunity, cell proliferation and hematopoiesis. Some ABC transporters are selectively expressed on megakaryocyte progenitor, megakaryocyte and its cellular fragment platelet. However, the role of ABC transporters in hemostasis and thrombosis were not well explored until recently...
June 14, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28641119/maternal-progesterone-levels-are-modulated-by-maternal-bmi-and-predict-birth-weight-sex-specifically-in-human-pregnancies
#5
Anke Diemert, Janina Goletzke, Claus Barkmann, Robert Jung, Kurt Hecher, Petra Arck
OBJECTIVE: Successful pregnancy outcome is the result of a tailored adaptation of the maternal endocrine and immune system throughout gestation. We aimed to investigate if maternal endocrine, anthropometric and life style factors assessed longitudinally throughout pregnancy allow prediction of birth weight. STUDY DESIGN: Data on maternal factors and obstetrical characteristics from 220 pregnancies from a German prospective pregnancy cohort were analyzed using univariate and multivariate regression models...
June 3, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28641115/feature-integration-drives-probabilistic-behavior-in-the-drosophila-escape-response
#6
Catherine R von Reyn, Aljoscha Nern, W Ryan Williamson, Patrick Breads, Ming Wu, Shigehiro Namiki, Gwyneth M Card
Animals rely on dedicated sensory circuits to extract and encode environmental features. How individual neurons integrate and translate these features into behavioral responses remains a major question. Here, we identify a visual projection neuron type that conveys predator approach information to the Drosophila giant fiber (GF) escape circuit. Genetic removal of this input during looming stimuli reveals that it encodes angular expansion velocity, whereas other input cell type(s) encode angular size. Motor program selection and timing emerge from linear integration of these two features within the GF...
June 21, 2017: Neuron
https://www.readbyqxmd.com/read/28641095/high-dose-chemotherapy-and-autologous-stem-cell-transplantation-in-relapsed-or-refractory-hodgkin-lymphoma-emerging-questions-newer-agents-and-changing-paradigm
#7
REVIEW
Saad Akhtar
Primary treatment for adult and pediatric patients with Hodgkin lymphoma (HL) using current multiagent anthracycline-based chemotherapy with or without radiation therapy will cure approximately >70% of the patients; >95% for early stage with a favorable risk profile and 70-75% with advanced stage and high risk features. Managing refractory and relapsed disease, however, remains a challenge. High dose chemotherapy (HDC) and autologous stem cell transplantation (auto-SCT) can salvage 40-70% of patients with relapsed or refractory HL...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28641094/emerging-concepts-in-cytomegalovirus-infection-following-hematopoietic-stem-cell-transplantation
#8
REVIEW
Jose F Camargo, Krishna V Komanduri
Despite the refinements in molecular methods for the detection of cytomegalovirus (CMV) and the advent of highly effective preemptive strategies, CMV remains a leading cause of morbidity and mortality in hematopoietic cell transplant (HCT) recipients. CMV can cause tissue-invasive disease including pneumonia, hepatitis, colitis, retinitis, and encephalitis. Mortality in HCT recipients with CMV disease can be as high as 60%. CMV infection has been associated with increased risk of secondary bacterial and fungal infections, increased risk of graft-versus-host disease, and high rates of nonrelapse mortality following HCT...
June 14, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28641078/signal-dimensionality-and-the-emergence-of-combinatorial-structure
#9
Hannah Little, Kerem Eryılmaz, Bart de Boer
In language, a small number of meaningless building blocks can be combined into an unlimited set of meaningful utterances. This is known as combinatorial structure. One hypothesis for the initial emergence of combinatorial structure in language is that recombining elements of signals solves the problem of overcrowding in a signal space. Another hypothesis is that iconicity may impede the emergence of combinatorial structure. However, how these two hypotheses relate to each other is not often discussed. In this paper, we explore how signal space dimensionality relates to both overcrowding in the signal space and iconicity...
June 19, 2017: Cognition
https://www.readbyqxmd.com/read/28641063/launching-adoptees-into-adulthood-mothers-and-fathers-promotion-of-volitional-functioning
#10
Sonia Ranieri, Laura Ferrari, Daniela Barni, Rosa Rosnati
In the psychological literature, there is growing evidence that parental support of children's volitional functioning is one of the most prominent protective factors during adolescence and the transition to adulthood. According to the Self-Determination Theory, children cope best with developmental tasks when they acquire a sense of self-governance and self-endorsed functioning. In the field of adoption research, however, the parental promotion of volitional functioning (PVF) and its relation to the adopted child's development are still underinvestigated...
July 2017: Journal of Prevention & Intervention in the Community
https://www.readbyqxmd.com/read/28641050/thrifty-females-frisky-males-winter-energetics-of-hibernating-bats-from-a-cold-climate
#11
Zenon J Czenze, Kristin A Jonasson, Craig K R Willis
Mammalian hibernation consists of energy-saving torpor bouts (periods of controlled reduction in body temperature [Tb]) interspersed with brief arousals to normothermic Tb. Frequency and duration of torpor bouts and arousals can affect winter survival and are thought to be influenced by an optimization balancing the energetic benefits of prolonged torpor against the physiological and ecological costs (e.g., accumulation of metabolic wastes). Female little brown bats (Myotis lucifugus) spend their fat reserves more slowly than males during winter, presumably so they can emerge from hibernation in good condition to initiate pregnancy...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28641035/hypoglycemia-patients-and-transport-by-ems-in-alameda-county-2013-15
#12
Howard H Moffet, E Margaret Warton, Lee Siegel, Karl Sporer, Kasia J Lipska, Andrew J Karter
OBJECTIVE: To estimate the rate, characteristics, and dispositions of hypoglycemia events among persons who received care from Alameda County, California, Emergency Medical Services (EMS). METHODS: This study was based on data for 601,077 Alameda County EMS encounters during 2013-15. Subjects were defined as having hypoglycemia if EMS personnel recorded a primary impression of hypoglycemia or low blood glucose (<60 mg/dl or "unspecified low"). The outcome of interest was patient transport or non-transport to an emergency department or other care setting; we excluded 33,177 (6%) encounters which lacked clear disposition outcomes...
June 22, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28640984/is-it-right-to-ignore-learning-curve-patients-laparoscopic-colorectal-trials
#13
Alan P Meagher, Shi Yang, Shuyuan Li
BACKGROUND: Increasingly complex, technically demanding surgical procedures utilizing emerging technologies have developed over recent decades and are recognized as having long 'learning curves'. This raises significant new issues. Ethically and scientifically, the outcome of a patient in the learning curve is as important as the outcome of a patient outside the learning curve. The aim of this study is to highlight just one aspect of our approach to learning-curve patients that should change...
June 22, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28640894/characterization-and-analysis-of-long-non-coding-rna-lncrna-in-in-vitro-and-ex-vivo-derived-cardiac-progenitor-cells
#14
Baron Arnone, Jake Y Chen, Gangjian Qin
Recent advancements in cell-based therapies for the treatment of cardiovascular disease (CVD) show continuing promise for the use of transplanted stem and cardiac progenitor cells (CPCs) to promote cardiac restitution. However, a detailed understanding of the molecular mechanisms that control the development of these cells remains incomplete and is critical for optimizing their use in such therapy. Long non-coding (lnc) RNA has recently emerged as a crucial class of regulatory molecules involved in directing a variety of critical biological processes including development, homeostasis and disease...
2017: PloS One
https://www.readbyqxmd.com/read/28640889/contrasting-academic-and-lay-press-print-coverage-of-the-2013-2016-ebola-virus-disease-outbreak
#15
Mark D Kieh, Elim M Cho, Ian A Myles
Under a traditional paradigm, only those with the expected background knowledge consume academic literature. The lay press, as well as government and non-government agencies, play a complementary role of extracting findings of high interest or importance and translating them for general viewing. The need for accurate reporting and public advising is paramount when attempting to tackle epidemic outbreaks through behavior change. Yet, public trust in media outlets is at a historic low. The Crisis and Emergency Risk Communication (CERC) model for media reporting on public health emergencies was established in 2005 and has subsequently been used to analyze media reporting on outbreaks of influenza and measles as well as smoking habits and medication compliance...
2017: PloS One
https://www.readbyqxmd.com/read/28640877/identification-of-c-ebp%C3%AE-as-a-novel-target-of-the-hpv8-e6-protein-regulating-mir-203-in-human-keratinocytes
#16
Anna M Marthaler, Marta Podgorska, Pascal Feld, Alina Fingerle, Katrin Knerr-Rupp, Friedrich Grässer, Hans Smola, Klaus Roemer, Elke Ebert, Yoo-Jin Kim, Rainer M Bohle, Cornelia S L Müller, Jörg Reichrath, Thomas Vogt, Magdalena Malejczyk, Sławomir Majewski, Sigrun Smola
Patients suffering from Epidermodysplasia verruciformis (EV), a rare inherited skin disease, display a particular susceptibility to persistent infection with cutaneous genus beta-human papillomavirus (beta-HPV), such as HPV type 8. They have a high risk to develop non-melanoma skin cancer at sun-exposed sites. In various models evidence is emerging that cutaneous HPV E6 proteins disturb epidermal homeostasis and support carcinogenesis, however, the underlying mechanisms are not fully understood as yet. In this study we demonstrate that microRNA-203 (miR-203), a key regulator of epidermal proliferation and differentiation, is strongly down-regulated in HPV8-positive EV-lesions...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28640858/early-growth-stages-salinity-stress-tolerance-in-cm72-x-gairdner-doubled-haploid-barley-population
#17
Tefera Tolera Angessa, Xiao-Qi Zhang, Gaofeng Zhou, Sue Broughton, Wenying Zhang, Chengdao Li
A doubled haploid (DH) population of barley (Hordeum vulgare L.) generated from salinity tolerant genotype CM72 and salinity sensitive variety Gairdner was studied for salinity stress tolerance at germination, seedling emergence and first leaf full expansion growth stages. Germination study was conducted with deionized water, 150 mM and 300 mM NaCl treatments. Seedling stage salinity tolerance was conducted with three treatments: control, 150 mM NaCl added at seedling emergence and first leaf full expansion growth stages...
2017: PloS One
https://www.readbyqxmd.com/read/28640857/glucose-dysregulation-and-response-to-common-anti-diabetic-agents-in-the-fatzo-pco-mouse
#18
Richard G Peterson, Charles Van Jackson, Karen M Zimmerman, Jorge Alsina-Fernandez, M Dodson Michael, Paul J Emmerson, Tamer Coskun
The FATZO/Pco mouse is the result of a cross of the C57BL/6J and AKR/J strains. The crossing of these two strains and the selective inbreeding for obesity, insulin resistance and hyperglycemia has resulted in an inbred strain exhibiting obesity in the presumed presence of an intact leptin pathway. Routinely used rodent models for obesity and diabetes research have a monogenic defect in leptin signaling that initiates obesity. Given that obesity and its sequelae in humans are polygenic in nature and not associated with leptin signaling defects, the FATZO mouse may represent a more translatable rodent model for study of obesity and its associated metabolic disturbances...
2017: PloS One
https://www.readbyqxmd.com/read/28640820/whole-genome-analysis-of-selected-human-and-animal-rotaviruses-identified-in-uganda-from-2012-to-2014-reveals-complex-genome-reassortment-events-between-human-bovine-caprine-and-porcine-strains
#19
Josephine Bwogi, Khuzwayo C Jere, Charles Karamagi, Denis K Byarugaba, Prossy Namuwulya, Frederick N Baliraine, Ulrich Desselberger, Miren Iturriza-Gomara
Rotaviruses of species A (RVA) are a common cause of diarrhoea in children and the young of various other mammals and birds worldwide. To investigate possible interspecies transmission of RVAs, whole genomes of 18 human and 6 domestic animal RVA strains identified in Uganda between 2012 and 2014 were sequenced using the Illumina HiSeq platform. The backbone of the human RVA strains had either a Wa- or a DS-1-like genetic constellation. One human strain was a Wa-like mono-reassortant containing a DS-1-like VP2 gene of possible animal origin...
2017: PloS One
https://www.readbyqxmd.com/read/28640812/challenges-in-preparing-and-implementing-a-clinical-trial-at-field-level-in-an-ebola-emergency-a-case-study-in-guinea-west-africa
#20
Sara Carazo Perez, Elin Folkesson, Xavier Anglaret, Abdoul-Habib Beavogui, Emmanuel Berbain, Alseny-Modet Camara, Evelyn Depoortere, Annabelle Lefevre, Piet Maes, Kristian Nødtvedt Malme, Jean-Marie Denis Malvy, Sien Ombelet, Geertrui Poelaert, Daouda Sissoko, Alexis Tounkara, Pierre Trbovic, Pascal Piguet, Annick Antierens
During the large Ebola outbreak that affected West Africa in 2014 and 2015, studies were launched to evaluate potential treatments for the disease. A clinical trial to evaluate the effectiveness of the antiviral drug favipiravir was conducted in Guinea. This paper describes the main challenges of the implementation of the trial in the Ebola treatment center of Guéckédou. Following the principles of the Good Clinical Research Practices, we explored the aspects of the community's communication and engagement, ethical conduct, trial protocol compliance, informed consent of participants, ongoing benefit/risk assessment, record keeping, confidentiality of patients and study data, and roles and responsibilities of the actors involved...
June 2017: PLoS Neglected Tropical Diseases
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