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https://www.readbyqxmd.com/read/28812301/changing-treatment-paradigms-for-brain-metastases-from-melanoma-part-1-diagnosis-prognosis-symptom-control-and-local-treatment
#1
REVIEW
Vyshak Alva Venur, Pauline Funchain, Rupesh Kotecha, Samuel T Chao, Manmeet S Ahluwalia
Melanoma is the third most common cause of brain metastases, after lung and breast cancer. The management of melanoma brain metastases can be broadly divided into symptom control and therapeutic strategies. Supportive treatments include corticosteroids to reduce peritumoral edema, antiepileptics for seizure control, and medications to preserve cognitive function. Until recently, therapeutic strategies consisted primarily of local treatments, including surgery, whole-brain radiation therapy (WBRT), and stereotactic radiosurgery (SRS)...
August 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28812122/-how-does-knowledge-reach-health-care-practice-implementation-research-and-knowledge-circulation
#2
REVIEW
Horst Christian Vollmar, Sara Santos, Anneke de Jong, Gabriele Meyer, Stefan Wilm
BACKGROUND: Evidence-based knowledge is among the most important resources in health care. However, relevant knowledge is often not implemented. There are about 100 different concepts for the "knowledge-to-practice gap". OBJECTIVES: We conducted this review to identify relevant concepts that describe and try to overcome this situation: implementation research and knowledge translation or circulation. MATERIALS AND METHODS: We initially conducted a systematic search in the databases CINAHL, Embase, ERIC, Medline, PsycINFO, Scopus, Cochrane Library and Web of Science without time or language restrictions...
August 15, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28810781/projected-coupled-cluster-theory
#3
Yiheng Qiu, Thomas M Henderson, Jinmo Zhao, Gustavo E Scuseria
Coupled cluster theory is the method of choice for weakly correlated systems. But in the strongly correlated regime, it faces a symmetry dilemma, where it either completely fails to describe the system or has to artificially break certain symmetries. On the other hand, projected Hartree-Fock theory captures the essential physics of many kinds of strong correlations via symmetry breaking and restoration. In this work, we combine and try to retain the merits of these two methods by applying symmetry projection to broken symmetry coupled cluster wave functions...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28810244/increasing-haemodialytic-clearances-as-residual-renal-function-declines-an-incremental-approach
#4
Kamonwan Tangvoraphonkchai, Andrew Davenport
Many patients with chronic kidney disease start undergoing thrice-weekly haemodialysis (HD), aiming for an HD sessional dialyzer urea clearance target, irrespective of whether they have residual renal function (RRF). While increasing sessional dialyzer urea clearance above a target of 1.2 has not been shown to improve patient survival, it has been shown that the preservation of RRF improves patient self-reported outcomes and survival. Observational studies have suggested that initiating twice-weekly HD schedules leads to greater preservation of RRF...
August 16, 2017: Blood Purification
https://www.readbyqxmd.com/read/28809536/ternary-solar-cells-based-on-two-small-molecule-donors-with-same-conjugated-backbone-the-role-of-good-miscibility-and-hole-relay-process
#5
Liangang Xiao, Tianxiang Liang, Ke Gao, Tianqi Lai, Xuebin Chen, Feng Liu, Thomas P Russell, Fei Huang, Xiaobin Peng, Yong Cao
Ternary organic solar cells (OSCs) are very attractive for further enhancing the power conversion efficiencies (PCEs) of binary ones but still with a single active layer. However, improving the PCEs is still challenging because a ternary cell with one more component is more complicated on phase separation behavior. If the two donors or two acceptors have similar chemical structures, good miscibility can be expected to reduce the try-and-error work. Herein, we report ternary devices based on two small molecule donors with the same backbone but different substituents...
August 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28809529/multiphoton-fabrication-of-fibronectin-functionalized-protein-micropatterns-stiffness-induced-maturation-of-cell-matrix-adhesions-in-human-mesenchymal-stem-cells
#6
Jiaoni Ma, Chuen Wai Li, Nan Huang, Xinna Wang, Minghui Tong, Alfonso H W Ngan, Barbara P Chan
Cell-matrix adhesions are important structures governing the interactions between cells and their microenvironment at the cell-matrix interface. Focal complex (FC) and focal adhesion (FA) have been substantially investigated in conventional 2D culture system using fibroblast as in vitro model. However, the formation of more mature types of cell-matrix adhesion in human mesenchymal stem cells (hMSCs), including fabrillar adhesion (FBA) and 3D matrix adhesion (3DMA), have not been fully elucidated. Here, we try to provide some hints on which niche factor(s) dominate(s) the maturation of FBA and 3DMA by using multiphoton fabrication-based micropatterning technique...
August 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28809479/natural-seminal-amyloids-as-targets-for-development-of-synthetic-inhibitors-of-hiv-transmission
#7
Daniel A Sheik, Stephen Dewhurst, Jerry Yang
Amyloids refer to a class of protein or peptide aggregates that are heterogeneous in size, morphology, and composition, and are implicated to play a central role in many neurodegenerative and systemic diseases. The strong correlation between biological activity and extent of aggregation of amyloidogenic proteins and peptides has led to an explosion of research efforts to target these materials with synthetic molecules or engineered antibodies to try to attenuate their function in disease pathology. Although many of these efforts to attenuate amyloid function have shown great promise in laboratory settings, the vast majority of work has been focused on targeting amyloids associated with neurologic diseases, which has been met with significant additional challenges that preclude clinical evaluation...
August 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28809476/reactivity-and-diffusivity-of-li-polysulfides-a-fundamental-study-using-impedance-spectroscopy
#8
Sara Drvarič Talian, Joze Moskon, Robert Dominko, Miran Gaberscek
Polysulfides are central compounds in lithium-sulfur battery cells. However, the fundamental redox and diffusion properties of polysulfides are still poorly understood. We try to fill this gap by performing accurate impedance spectroscopy investigation using symmetrical cells consisting from two planar glassy carbon electrodes separated with catholyte-soaked separator. The catholyte contains a mixture of selected polysulfides with predetermined nominal concentrations. Impedance measurements reveal textbook shapes of spectra for most polysulfide compounds or their mixtures...
August 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28809380/production-of-bone-mineral-material-and-bmp-2-in-osteoblasts-cultured-on-double-acid-etched-titanium
#9
R Velázquez-Cayón, G Castillo-Dalí, J-R Corcuera-Flores, M-A Serrera-Figallo, R Castillo-Oyagüe, M González-Martín, J-C Gutierrez-Pérez, D Torres-Lagares
BACKGROUND: The study of osteoblasts and their osteogenic functions is essential in order to understand them and their applications in implantology. In this sense, this study try to study BMP-2 production and bone matrix deposition, in addition to other biological variables, in osteoblasts cultured on a rough double acid-etched titanium surface (Osseotite®, Biomet 3i, Palm Beach Garden, Florida, USA) in comparison to a smooth titanium surface (machined) and a control Petri dish. MATERIALS AND METHODS: An in vitro prospective study...
August 15, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28808809/evidence-of-dengue-virus-replication-in-a-non-traumatic-spleen-rupture-case
#10
Luiz José de Souza, João de Azevedo, Liza Ingride Acha Kohler, Lorena de Freitas Barros, Mariana Arêdes Lima, Emiliana Mandarano Silva, Ronaldo Mohana-Borges, Priscila Conrado Guerra Nunes, Marciano Viana Paes
The present report describes a case of splenic rupture due to dengue, a rare complication of dengue that should be considered in any patient with suspected dengue disease who started with left upper quadrant abdominal pain and hypotension. The pathophysiology of this entity is not yet well elucidated, but one of the theories present in the literature is that it is due to a depletion of coagulation factors and platelets leading to intra-splenic hemorrhage and rupture. The RT-PCR technique detected serotype 1 and histopathological studies of the spleen revealed significant atrophy of lymphoid follicles and extensive hemorrhage areas...
August 14, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28807432/non-neurologic-burst-thoracolumbar-fractures-fixation-case-control-study
#11
Aymeric Amelot, Joseph Cristini, Alexis Moles, Celine Salaud, Olivier Hamel, Eric Bord, Kevin Buffenoir
STUDY DESIGN: Burst fractures not associated with any neurological deficits are frequent but not therapeutic agreement on their management is available to date. This case-control study was conducted to try to help guide therapeutic decision in the treatment of such fractures. MATERIALS AND METHODS: This case-control study includes consecutive retrospective evaluation of 25 case-patients treated by posterior short-segment fixation associated with kyphoplasty (SFK) in the treatment of A3 thoracolumbar unstable fractures, as compared to a control-group composed of 82 patients treated by long-segment (LF) pedicle screws...
August 4, 2017: Injury
https://www.readbyqxmd.com/read/28807167/treatment-of-insomnia-with-traditional-chinese-herbal-medicine
#12
Amrinder Singh, Kaicun Zhao
Insomnia is a condition with sleep problems and many people suffered from it. Chronic insomnia can last for long time and it will severely affect people's health and the quality of life. In conventional medicine, the most commonly used the medicine is benzodiazepine. It is effective but also has significant side effects. Patients try to use some kinds of alternative medicines. Chinese medicinal herbs and formulas have been used in the treatment of insomnia for more than 2000 years in China. In recent decades, Chinese herbal medicine has been widely used in the Western countries...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28806477/curative-salvage-liver-transplantation-in-cirrhotic-patients-with-hepatocellular-carcinoma-an-intention-to-treat-analysis
#13
Robbert J de Haas, Chetana Lim, Prashant Bhangui, Chady Salloum, Philippe Compagnon, Cyrille Feray, Julien Calderaro, Alain Luciani, Daniel Azoulay
The salvage liver transplantation (SLT) strategy was conceived for initially resectable and transplantable (R&T) hepatocellular carcinoma (HCC) patients, to try to obviate upfront LT, with the 'safety net' of SLT in case of post-resection recurrence. The SLT strategy is successful or curative when patients are recurrence-free following primary resection alone, or after SLT for recurrence. The aim of the current study was to determine the SLT strategy's potential for cure in R&T HCC patients, and to identify predictors for its success...
August 14, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28805751/characterization-of-quadratic-nonlinearity-between-motion-artifact-and-acceleration-data-and-its-application-to-heartbeat-rate-estimation
#14
Sunho Kim, Sungbin Im, Taehyung Park
Accelerometers are applied to various applications to collect information about movements of other sensors deployed at diverse fields ranging from underwater area to human body. In this study, we try to characterize the nonlinear relationship between motion artifact and acceleration data. The cross bicoherence test and the Volterra filter are used as the approaches to detection and modeling. We use the cross bicoherence test to directly detect in the frequency domain and we indirectly identify the nonlinear relationship by improving the performance of eliminating motion artifact in heartbeat rate estimation using a nonlinear filter, the second-order Volterra filter...
August 14, 2017: Sensors
https://www.readbyqxmd.com/read/28805250/peer-review-the-future-is-here
#15
Maria Papatriantafyllou
Several divergent standpoints are hosted under the umbrella of Peer Review. Authors, who wish to see the results of scrupulous work published, in the anticipation of career promotion or secure funding. Editors, who are under pressure to identify sound and novel research. Reviewers, who try to fit a thoughtful and time-consuming process within busy schedules, often receiving no credit for it. And Publishers competing in a transforming landscape of fast and abundant science publishing. This article is protected by copyright...
August 14, 2017: FEBS Letters
https://www.readbyqxmd.com/read/28803490/parkin-pink1-and-dj1-as-possible-modulators-of-mtor-pathway-in-ganglioglioma
#16
Katarzyna Drapalo, Jaroslaw Jozwiak
Ganglioglioma (GG) is a non-malignant tumor classified as G1 by the WHO. Although we currently know that the neoplasm may result from the hyperactivity of protein kinase B (PKB or Akt) or extracellular-regulated kinase (Erk), which upregulates mammalian target of rapamycin kinase (mTOR) and leads to translation of proteins responsible for cell cycle regulation, there are still many questions to be answered. In the current paper we try to analyze the link between GG formation and activity of three proteins known to play a role in neuroprotection...
August 14, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28801181/the-use-of-oral-corticosteroids-in-inflammatory-bowel-diseases-in-italy-an-ig-ibd-survey
#17
Federica Fascì-Spurio, Gianmichele Meucci, Claudio Papi, Simone Saibeni
AIM: To evaluate how Italian gastroenterologists use corticosteroids in clinical practice for the treatment of Crohn's disease (CD) and ulcerative colitis (UC). MATERIAL AND METHODS: All members of the Italian Group for Inflammatory Bowel Disease (IG-IBD) were invited to fill in a web-based questionnaire. RESULTS: 131/448 (29.2%) members completed the survey. In mild-to-moderate UC and CD relapses, low-bioavailability steroids (LBS) are first-line therapy for 37% and 42% of clinicians, respectively...
July 22, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28801009/management-of-radiation-side-effects-to-the-skin
#18
REVIEW
Tracy Gieger, Michael Nolan
Radiation therapy (RT) is an essential component for management of many cancers. Veterinary health care professionals must counsel owners about the potential side effects of RT, the anticipated management plan, and associated costs. For most veterinary patients treated with RT, acute radiation side effects are mild; however, careful radiation treatment planning and appropriate management of acute side effects are essential to try to prevent chronic sequelae and the need for ongoing wound care. This article reviews acute and late side effects to the skin and their management...
August 9, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28800408/effects-of-phenanthrene-on-early-development-of-the-pacific-oyster-crassostrea-gigas-thunberg-1789
#19
Diego J Nogueira, Jacó J Mattos, Patrick R Dybas, Fabrıcio Flores-Nunes, Silvio Tarou Sasaki, Satie Taniguchi, Éder C Schmidt, Zenilda L Bouzon, Márcia C Bícego, Claudio M R Melo, Guilherme Toledo-Silva, Afonso C D Bainy
Phenanthnere (PHE) is a polycyclic aromatic hydrocarbon continuously discarded in the marine environment and bioavailable to many aquatic species. Although studies about PHE toxicity have been documented for adult oysters, the effects on early developmental stages are poorly characterized in bivalves. In this study, the effects of PHE (0.02 and 2.0μg.L(-1)) were evaluated on the embryogenesis and larval development of Crassostrea gigas. Toxicity bioassays, growth and deformities assessment, analysis of shell calcium abundance and transcript levels of genes related to xenobiotic biotransformation (CYP2AU2, CYP30C1), immune system (Cg-Tal) and tissue growth and shell formation (Ferritin, Insulin-like, Cg-Try, Calmodulin and Nacrein) were assayed in D-shape larvae after 24h of PHE exposure...
August 1, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28799092/dissociable-learning-processes-in-comparative-psychology
#20
REVIEW
J David Smith, Barbara A Church
Comparative and cognitive psychologists interpret performance in different ways. Animal researchers invoke a dominant construct of associative learning. Human researchers acknowledge humans' capacity for explicit-declarative cognition. This article offers a way to bridge a divide that defeats productive cross-talk. We show that animals often challenge the associative-learning construct, and that it does not work to try to stretch the associative-learning construct to encompass these performances. This approach thins and impoverishes that important construct...
August 10, 2017: Psychonomic Bulletin & Review
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