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https://www.readbyqxmd.com/read/28822292/nanoparticles-assemblies-on-demand-controlled-aggregation-of-ag-0-mediated-by-modified-peptoid-sequences
#1
Hagar Tigger-Zaborov, Galia Maayan
Assemblies of metal nanoparticles (NPs) have been broadly used for the construction of materials with distinct spectroscopic properties towards sensing applications. On the other hand, well-dispersed NPs are exploit for applications in catalysis and medicine. Biopolymers or biomimetic oligomers can serve both as efficient stabilizers of NPs and as useful aggregation mediators that can lead to assemblies with unique properties. Controlling aggregation processes, however, is still challenging and often relies on trial and error rather than on defined thumb rules...
August 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28820716/evaluation-of-community-directed-operation-of-black-fly-traps-for-entomological-surveillance-of-onchocerca-volvulus-transmission-in-the-madi-mid-north-focus-of-onchocerciasis-in-northern-uganda
#2
Denis Loum, Charles R Katholi, Thomson Lakwo, Peace Habomugisha, Edridah M Tukahebwa, Thomas R Unnasch
Entomological measures of transmission are important metrics specified by the World Health Organization to document the suppression and interruption of transmission of Onchocerca volvulus, the causative agent of onchocerciasis. These metrics require testing of large numbers of vector black flies. Black fly collection has relied on human landing collections, which are inefficient and potentially hazardous. As the focus of the international community has shifted from onchocerciasis control to elimination, replacement of human landing collections has become a priority...
July 31, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28818060/rna-transfection-of-%C3%AE-%C3%AE-t-cells-with-a-chimeric-antigen-receptor-or-an-%C3%AE-%C3%AE-t-cell-receptor-a-safer-alternative-to-genetically-engineered-%C3%AE-%C3%AE-t-cells-for-the-immunotherapy-of-melanoma
#3
Dennis C Harrer, Bianca Simon, Shin-Ichiro Fujii, Kanako Shimizu, Ugur Uslu, Gerold Schuler, Kerstin F Gerer, Stefanie Hoyer, Jan Dörrie, Niels Schaft
BACKGROUND: Adoptive T-cell therapy relying on conventional T cells transduced with T-cell receptors (TCRs) or chimeric antigen receptors (CARs) has caused substantial tumor regression in several clinical trials. However, genetically engineered T cells have been associated with serious side-effects due to off-target toxicities and massive cytokine release. To obviate these concerns, we established a protocol adaptable to GMP to expand and transiently transfect γ/δ T cells with mRNA...
August 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28817495/nursing-management-of-the-patient-undergoing-focused-ultrasound-a-new-treatment-option-for-essential-tremor
#4
Katherine Dale Shaw, Amy Sue Johnston, Shelly Rush-Evans, Susan Prather, Kathy Maynard
Essential tremor (ET) is among the most common neurological movement disorders that causes postural or action tremors, with an estimated prevalence nationwide of less than 3% of the population. The incidence of ET increases with age but often affects younger adults and has a familial trait association. Depending on disease progression, ET can cause significant limitations for individuals, in many cases, significantly limiting their ability to perform activities of daily living and occupational responsibilities...
August 16, 2017: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
https://www.readbyqxmd.com/read/28814325/australian-adolescents-beliefs-and-help-seeking-intentions-towards-peers-experiencing-symptoms-of-depression-and-alcohol-misuse
#5
D I Lubman, A Cheetham, A F Jorm, B J Berridge, C Wilson, F Blee, L Mckay-Brown, N Allen, J Proimos
BACKGROUND: Many young people are reluctant to seek professional help for mental health problems, preferring to rely on their friends for support. It is therefore important to ensure that adolescents can identify signs of psychological distress in their peers, talk to them about these, and help them access appropriate services when necessary. The current study examined adolescents' ability to recognise symptoms of depression and alcohol misuse, perceived barriers to help-seeking, and their intentions to encourage a peer to seek help from a range of informal and formal help sources...
August 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28806928/colour-polymorphic-lures-exploit-innate-preferences-for-spectral-versus-luminance-cues-in-dipteran-prey
#6
Thomas E White, Darrell J Kemp
BACKGROUND: Theory predicts that colour polymorphism may be favored by variation in the visual context under which signals are perceived. The context encompasses all environmental determinants of light availability and propagation, but also the dynamics of perception in receivers. Color vision involves the neural separation of information into spectral versus luminance channels, which often differentially guide specific tasks. Here we explicitly tested whether this discrete perceptual basis contributes to the maintenance of polymorphism in a prey-luring system...
August 14, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28805723/hitting-the-holy-grail-of-hematopoietic-cell-transplantation-with-naive-t-cell-depleted-allografts-graft-engineered-hematopoietic-stem-cell-transplant
#7
Riad El Fakih, Shahrukh K Hashmi
Hematopoietic cell transplant is a potentially curative procedure for many benign and malignant conditions. The efficacy of allogeneic transplant relies in part on the cytotoxicity of the conditioning regimen and the graft versus tumor effect mediated by alloreactive donor T cells; the same cells are also implicated in the development of graft versus host disease (GVHD). Selective identification and depletion of the T cells implicated in GVHD, while preserving the T cells responsible for graft versus tumor effect has been the focus of many research groups in the recent years...
August 14, 2017: Biomedicines
https://www.readbyqxmd.com/read/28805433/overriding-actions-in-parkinson-s-disease-impaired-stopping-and-changing-of-motor-responses
#8
Wery P M van den Wildenberg, K Richard Ridderinkhof, Nelleke C van Wouwe, Joseph S Neimat, Theodore R Bashore, Scott A Wylie
We administered a stop-change paradigm, an extended version of the stop task that requires (a) stopping an ongoing motor response and (b) changing to an alternative (change) response. Performance of a group of patients diagnosed with Parkinson's disease (PD) and taking dopaminergic medication was compared with that of matched healthy control (HC) participants. Behavioral results indicated that response latencies to the initial go signal did not distinguish between the 2 groups, but that stopping latencies were prolonged in PD patients...
August 14, 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/28803497/exploring-the-potential-value-of-improved-care-for-secondary-hyperparathyroidism-with-a-novel-calcimimetic-therapy
#9
Björn Stollenwerk, Sergio Iannazzo, Kerry Cooper, Vasily Belozeroff
AIMS: This study explored the use of a value-based pricing approach for the new calcimimetic etelcalcetide indicated for the treatment of secondary hyperparathyroidism (SHPT) in patients receiving hemodialysis. It used the US payer perspective and applied the cost-effectiveness framework. Because etelcalcetide is an intravenous therapy that can be titrated for individual patients, and because its utilization is yet to be assessed in real world settings, a range of plausible doses were estimated for etelcalcetide to define a range of prices...
August 14, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28802578/purification-of-functional-reprogramming-factors-in-mammalian-cell-using-flag-tag
#10
Min-Joon Han, Ha Ram Kim, Carla O'Reilly, Chun-Hyung Kim
Induced pluripotent stem cells (iPSCs) technology is a method for generating pluripotent stem cells in vitro from fully differentiated cells such as fibroblast cells. The potential applications of iPSC technology in cell therapy and disease modeling could influence current medical practices. Despite current advances in iPSC technology, many patient-derived reprogrammed cells are not suitable for clinical trial because most protocols rely on virus-based techniques, which pose the risk of integration of the viral genome into the chromosomes...
August 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28801437/patient-experience-of-nhs-health-checks-a-systematic-review-and-qualitative-synthesis
#11
Juliet A Usher-Smith, Emma Harte, Calum MacLure, Adam Martin, Catherine L Saunders, Catherine Meads, Fiona M Walter, Simon J Griffin, Jonathan Mant
OBJECTIVE: To review the experiences of patients attending NHS Health Checks in England. DESIGN: A systematic review of quantitative and qualitative studies with a thematic synthesis of qualitative studies. DATA SOURCES: An electronic literature search of Medline, Embase, Health Management Information Consortium, Cumulative Index of Nursing and Allied Health Literature, Global Health, PsycInfo, Web of Science, OpenGrey, the Cochrane Library, National Health Service (NHS) Evidence, Google Scholar, Google, Clinical Trials...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28798898/dark-adapted-chromatic-perimetry-for-measuring-rod-visual-fields-in-patients-with-retinitis-pigmentosa
#12
Lea D Bennett, Martin Klein, Kirsten G Locke, Kelly Kiser, David G Birch
PURPOSE: Although rod photoreceptors are initially affected in retinitis pigmentosa (RP), the full-field of rod vision is not routinely characterized due to the unavailability of commercial devices detecting rod sensitivity. The purpose of this study was to quantify rod-mediated vision in the peripheral field from patients with RP using a new commercially available perimeter. METHODS: Participants had one eye dilated and dark-adapted for 45 minutes. A dark-adapted chromatic (DAC) perimeter tested 80 loci 144° horizontally and 72° vertically with cyan stimuli...
July 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28794805/treatment-of-advanced-metastatic-soft-tissue-sarcoma-latest-evidence-and-clinical-considerations
#13
REVIEW
Gino K In, James S Hu, William W Tseng
Soft tissue sarcoma (STS) is a biologically heterogeneous malignancy with over 50 subtypes. Historically, there have been few systemic treatment options for this relatively rare disease. Traditional cytotoxic agents, such as anthracyclines, alkylating agents, and taxanes have limited clinical benefit beyond the first-line setting; across all high-grade STS subtypes, median overall survival remains approximately 12-18 months for advanced metastatic disease. The development of targeted therapies has led to recent US Food and Drug Administration approval of four new treatments for high-grade STS in the advanced metastatic setting...
August 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28792466/distinctive-responses-in-an-in-vitro-human-dendritic-cell-based-system-upon-stimulation-with-different-influenza-vaccine-formulations
#14
Gabriela Tapia-Calle, Maaike Stoel, Jacqueline de Vries-Idema, Anke Huckriede
Vaccine development relies on testing vaccine candidates in animal models. However, results from animals cannot always be translated to humans. Alternative ways to screen vaccine candidates before clinical trials are therefore desirable. Dendritic cells (DCs) are the main orchestrators of the immune system and the link between innate and adaptive responses. Their activation by vaccines is an essential step in vaccine-induced immune responses. We have systematically evaluated the suitability of two different human DC-based systems, namely the DC-cell line MUTZ-3 and primary monocyte-derived DCs (Mo-DCs) to screen immunopotentiating properties of vaccine candidates...
August 9, 2017: Vaccines
https://www.readbyqxmd.com/read/28776698/intertrial-rt-variability-affects-level-of-target-related-interference-in-cued-task-switching
#15
Alexander Provost, Sharna Jamadar, Andrew Heathcote, Scott D Brown, Frini Karayanidis
In cued task switching, performance relies on proactive and reactive control processes. Proactive control is evident in the reduction in switch cost under conditions that promote advance preparation. However, the residual switch cost that remains under conditions of optimal proactive control indicates that, on switch trials, the target continues to elicit interference that is resolved using reactive control. We examined whether posttarget interference varies as a function of trial-by-trial variability in preparation...
August 4, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28776264/why-free-choices-take-longer-than-forced-choices-evidence-from-response-threshold-manipulations
#16
Christoph Naefgen, Michael Dambacher, Markus Janczyk
Response times (RTs) for free choice tasks are usually longer than those for forced choice tasks. We examined the cause for this difference in a study with intermixed free and forced choice trials, and adopted the rationale of sequential sampling frameworks to test two alternative accounts: Longer RTs in free choices are caused (1) by lower rates of information accumulation, or (2) by additional cognitive processes that delay the start of information accumulation. In three experiments, we made these accounts empirically discriminable by manipulating decision thresholds via the frequency of catch trials (Exp...
August 3, 2017: Psychological Research
https://www.readbyqxmd.com/read/28774421/thalassaemia
#17
REVIEW
Ali T Taher, David J Weatherall, Maria Domenica Cappellini
Inherited haemoglobin disorders, including thalassaemia and sickle-cell disease, are the most common monogenic diseases worldwide. Several clinical forms of α-thalassaemia and β-thalassaemia, including the co-inheritance of β-thalassaemia with haemoglobin E resulting in haemoglobin E/β-thalassaemia, have been described. The disease hallmarks include imbalance in the α/β-globin chain ratio, ineffective erythropoiesis, chronic haemolytic anaemia, compensatory haemopoietic expansion, hypercoagulability, and increased intestinal iron absorption...
July 31, 2017: Lancet
https://www.readbyqxmd.com/read/28772070/robust-and-efficient-spin-purification-for-determinantal-configuration-interaction
#18
B Scott Fales, Edward G Hohenstein, Benjamin G Levine
The limited precision of floating point arithmetic can lead to the qualitative and even catastrophic failure of quantum chemical algorithms, especially when high accuracy solutions are sought. For example, numerical errors accumulated while solving for determinantal configuration interaction wave functions via Davidson diagonalization may lead to spin contamination in the trial subspace. This spin contamination may cause the procedure to converge to roots with undesired ⟨Ŝ(2)⟩, wasting computer time in the best case and leading to incorrect conclusions in the worst...
August 18, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28766695/prevention-of-alzheimer-s-disease-lessons-learned-and-applied
#19
James E Galvin
Alzheimer's disease (AD) affects more than 5 million Americans, with substantial consequences for individuals with AD, families, and society in terms of morbidity, mortality, and healthcare costs. With disease-modifying treatment trials unsuccessful at the present time and only medications to treat symptoms available, an emerging approach is prevention. Advances in diagnostic criteria, biomarker development, and greater understanding of the biophysiological basis of AD make these initiatives feasible. Ongoing pharmacological trials using anti-amyloid therapies are underway in sporadic and genetic forms of AD, although a large number of modifiable risk factors for AD have been identified in observational studies, many of which do not appear to exert effects through amyloid or tau...
August 2, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28762172/mechanical-circulatory-support-for-decompensated-heart-failure
#20
REVIEW
Tarique Al Musa, Colin Dominic Chue, Hoong Sern Lim
PURPOSE OF REVIEW: Cardiogenic shock from decompensated heart failure is associated with significant morbidity and mortality. Mechanical circulatory support (MCS) improves haemodynamics and reverses organ dysfunction in critically ill patients with cardiogenic shock. This paper summarises the main modalities of mechanical support and their physiological impact, practical considerations, advantages and disadvantages to facilitate a holistic approach in managing a potentially lethal pathology...
July 31, 2017: Current Heart Failure Reports
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