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https://www.readbyqxmd.com/read/28922905/kidney-vouchers-and-inequity-in-transplantation
#1
Samuel J Kerstein
This article probes the voucher program from an ethical perspective. It focuses mainly on an issue of inequity. A disparity exists in US kidney transplantation. Although African-Americans suffer far higher rates of ESRD than whites, African-Americans are much less likely than whites to get a transplant (Ilori et al., 2015, 1). The article explores the voucher program in light of this disparity. It motivates the view that, at least in the short term, more whites than African-Americans are likely to take advantage of the voucher program...
October 1, 2017: Journal of Medicine and Philosophy
https://www.readbyqxmd.com/read/28922704/direct-acting-antivirals-for-chronic-hepatitis-c
#2
REVIEW
Janus C Jakobsen, Emil Eik Nielsen, Joshua Feinberg, Kiran Kumar Katakam, Kristina Fobian, Goran Hauser, Goran Poropat, Snezana Djurisic, Karl Heinz Weiss, Milica Bjelakovic, Goran Bjelakovic, Sarah Louise Klingenberg, Jian Ping Liu, Dimitrinka Nikolova, Ronald L Koretz, Christian Gluud
BACKGROUND: Millions of people worldwide suffer from hepatitis C, which can lead to severe liver disease, liver cancer, and death. Direct-acting antivirals (DAAs), e.g. sofosbuvir, are relatively new and expensive interventions for chronic hepatitis C, and preliminary results suggest that DAAs may eradicate hepatitis C virus (HCV) from the blood (sustained virological response). Sustained virological response (SVR) is used by investigators and regulatory agencies as a surrogate outcome for morbidity and mortality, based solely on observational evidence...
September 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28922624/quantification-of-voc-emissions-from-paint-spraying-on-a-construction-site-using-solid-phase-microextraction-devices
#3
Wen-Hsi Cheng, Hsiao-Lin Huang, Kang-Shin Chen, Yu-Jen Chang
The objective of this study was to measure the emission of, and personal exposure to workers, volatile organic compound (VOC) during paint spraying on a construction site. Needle trap samplers (NTSs), which are a green solid phase microextraction sampling technology, were used to obtain air samples at a large music exhibition center. The standard active sampling method using charcoal tubes and a personal air pump, Method 1501, was simultaneously utilized at the sampling sites to assess the workers' VOC exposures...
September 18, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28922583/reluctant-entrepreneurs-musicians-and-entrepreneurship-in-the-new-music-industry
#4
Jo Haynes, Lee Marshall
Changing labour conditions in the creative industries - with celebrations of autonomy and entrepreneurialism intertwined with increasing job insecurity, portfolio careers and short-term, project-based contracts - are often interpreted as heralding changes to employment relations more broadly. The position of musicians' labour in relation to these changes is unclear, however, given that these kinds of conditions have defined musicians' working practices over much longer periods of time (though they may have intensified due to well-documented changes to the music industry brought about by digitization and disintermediation)...
September 18, 2017: British Journal of Sociology
https://www.readbyqxmd.com/read/28922507/randomized-controlled-trial-evaluating-the-temporal-effects-of-high-intensity-exercise-on-learning-short-term-and-long-term-memory-and-prospective-memory
#5
Emily Frith, Eveleen Sng, Paul D Loprinzi
To examine the temporal effects of high-intensity exercise on learning, short-term and long-term retrospective memory and prospective memory. Among a sample of 88 young adult participants, 22 were randomized into one of four different groups: exercise before learning, control group, exercise during learning and exercise after learning. The retrospective assessments (learning, short-term and long-term memory) were assessed using the Rey Auditory Verbal Learning Test. Short-term memory included a 20-min delay assessment, with long-term memory including a 24-hour follow-up assessment...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28922504/selective-remodeling-of-glutamatergic-transmission-to-striatal-cholinergic-interneurons-after-dopamine-depletion
#6
Jose de Jesus Aceves Buendia, Lior Tiroshi, Wei-Hua Chiu, Joshua A Goldberg
The widely-held view that the pathophysiology of Parkinson's disease arises from an under-activation of the direct pathway striatal spiny neurons (dSPNs) has gained support from a recently described weakening of the glutamatergic projection from the parafascicular nucleus (PfN) to dSPNs in experimental parkinsonism. However, the impact of the remodeling of the thalamostriatal projection cannot be fully appreciated without considering its impact on cholinergic interneurons (ChIs) that themselves preferentially activate indirect pathway spiny neurons (iSPNs)...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28922380/the-warburg-effect-as-an-adaptation-of-cancer-cells-to-rapid-fluctuations-in-energy-demand
#7
Tamir Epstein, Robert A Gatenby, Joel S Brown
To maintain optimal fitness, a cell must balance the risk of inadequate energy reserve for response to a potentially fatal perturbation against the long-term cost of maintaining high concentrations of ATP to meet occasional spikes in demand. Here we apply a game theoretic approach to address the dynamics of energy production and expenditure in eukaryotic cells. Conventionally, glucose metabolism is viewed as a function of oxygen concentrations in which the more efficient oxidation of glucose to CO2 and H2O produces all or nearly all ATP except under hypoxic conditions when less efficient (2 ATP/ glucose vs...
2017: PloS One
https://www.readbyqxmd.com/read/28922372/reduction-of-organelle-motility-by-removal-of-potassium-and-other-solutes
#8
John W Murray, David Yin, Allan W Wolkoff
There are surprisingly few studies that describe how the composition of cell culture medium may affect the trafficking of organelles. Here we utilize time lapse multi-channel fluorescent imaging to show that short term exposure of Huh-7 cells to medium lacking potassium, sodium, or chloride strongly reduces but does not eliminate the characteristic back and forth and cell-traversing movement of fluorescent EGF (FL-EGF) containing organelles. We focused on potassium because of its relatively low abundance in media and serum and its energy requiring accumulation into cells...
2017: PloS One
https://www.readbyqxmd.com/read/28922367/perihematomal-diffusion-restriction-as-a-common-finding-in-large-intracerebral-hemorrhages-in-the-hyperacute-phase
#9
Tanja Schneider, David Frieling, Julian Schroeder, Jan Regelsberger, Gerhard Schoen, Jens Fiehler, Susanne Gellißen
PURPOSE: There is growing evidence that a perihematomal area of restricted diffusion (PDR) exists in intraparenchymal hemorrhages (IPH) within 1 week of symptom onset (SO). Here, we study characteristics and the clinical impact of the PDR in patients with hyperacute (≤ 6 hours from SO) IPH by means of apparent diffusion coefficient (ADC). METHODS: This monocentric, retrospective study includes 83 patients with first-ever primary IPH from 09/2002-10/2015. 3D volumetric segmentation was performed for the IPH, PDR, and perihematomal edema (PHE) on fluid-attenuated inversion recovery, T2*/susceptibility weighted images, and ADC images...
2017: PloS One
https://www.readbyqxmd.com/read/28922303/perioperative-outcomes-complications-and-efficacy-of-robotic-assisted-prolapse-repair-a-single-institution-study-of-196-patients
#10
Priyanka Gupta, Michael Ehlert, Jamie Bartley, Jason Gilleran, Kim A Killinger, Judith A Boura, Pradeep Nagaraju, Melissa Fischer
Abdominal pelvic organ prolapse repair is efficacious for uterovaginal and apical prolapse. We describe the safety and efficacy of robotic prolapse repair in a large teaching institution. METHODS: Consecutive robotic-assisted prolapse repairs at a single institution between 2006 and 2014 were retrospectively reviewed for patient characteristics, operative information, and outcomes. RESULTS: A total of 196 women (mean age, 61 ± 9 years) underwent robotic prolapse repair (189 sacrocolpopexy, 6 sacrohysteropexy, 1 enterocele repair)...
September 15, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28922255/systematic-review-and-meta-analysis-fecal-microbiota-transplantation-for-treatment-of-active-ulcerative-colitis
#11
Neeraj Narula, Zain Kassam, Yuhong Yuan, Jean-Frederic Colombel, Cyriel Ponsioen, Walter Reinisch, Paul Moayyedi
BACKGROUND: Changes in the colonic microbiota may play a role in the pathogenesis of ulcerative colitis (UC) and restoration of healthy gut microbiota may ameliorate disease. A systematic review and meta-analysis was conducted to assess fecal microbiota transplantation (FMT) as a treatment for active UC. METHODS: A literature search was conducted to identify high-quality studies of FMT as a treatment for patients with UC. The primary outcome was combined clinical remission and endoscopic remission or response...
August 23, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28922254/obese-patients-undergoing-ileal-pouch-anal-anastomosis-short-and-long-term-surgical-outcomes
#12
Nicholas P McKenna, Kellie L Mathis, Mohammad A Khasawneh, Eric J Dozois, David W Larson, John H Pemberton, Amy L Lightner
BACKGROUND: Ileal pouch-anal anastomosis (IPAA) is the preferred surgical treatment for patients with chronic ulcerative colitis. Little is known about the impact of obesity on operative characteristics, short-term postoperative complications and long-term functional outcomes after IPAA. METHODS: A retrospective review of all patients undergoing IPAA for chronic ulcerative colitis at a single tertiary referral center between January 2002 and August 2013 was performed...
August 23, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28922144/short-term-hypoxia-and-vasa-recta-function-in-kidney-slices
#13
D Braun, S Dietze, T M J Pahlitzsch, I C Wennysia, P B Persson, M Ludwig, A Patzak
BACKGROUND: Vasa recta (VR) supply the inner part of outer renal medulla an area at risk for hypoxic damages. OBJECTIVE: We hypothesize increased vasoreactivity after hypoxia/re-oxygenation (H/R) in VR, which might contribute to the reduced medullary perfusion after an ischemic event. METHODS: Live kidney slices (200μm) from SD rats were used for functional experiments. TUNEL assay and H&E staining were used to estimate slice viability. Kidney slices were treated with carbogen or hypoxia (1% O2) for 60 or 90 min and vasoreactivity to Ang II (10-7 M) was recorded by DIC microscopy after re-oxygenation with carbogen...
September 11, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28922094/remembering-but-not-knowing-disturbs-the-relational-bindings-newly-established-in-short-term-working-memory-an-age-group-comparison
#14
Arnaud Boujut, David Clarys
The aim of this study was to highlight that episodic memory and working memory compete for the same resource, which would be diminished in aging. Using the remember/know paradigm, we compared the interference related to the retrieval of words on the parallel processing of preestablished relational bindings (Shifting condition) or newly established relational bindings (Updating condition). Within each age-group, participants had comparable performances in remembering across recognition conditions. However, the results showed that only updating activity was impaired after a remember response was given in the younger group...
September 18, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28922018/tacrolimus-ointment-for-refractory-posterior-blepharitis
#15
Fernando Eiji Sakassegawa-Naves, Helena Maria Moraes Ricci, Bernardo Kaplan Moscovici, Daniela Akemi Miyamoto, Brenda Biagio Chiacchio, Ricardo Holzchuh, Ruth Muyuki Santo, Richard Yudi Hida
PURPOSE: This prospective, randomized, double-blind interventional case series was designed to evaluate the short-term efficacy of 0.03% tacrolimus ointment as a new therapeutic approach for refractory cases of posterior blepharitis. METHODS: Forty eyes (20 patients) with posterior blepharitis refractory to previous treatment were randomized. Eighteen eyes (9 patients) were treated with 0.03% tacrolimus ointment and 20 eyes (10 patients) with placebo ointment twice daily...
September 18, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28921776/transcriptional-responses-to-short-term-and-long-term-host-plant-experience-and-parasite-load-in-an-oligophagous-beetle
#16
Caroline Müller, Heiko Vogel, David G Heckel
Oligophagous herbivores must adjust their enzymatic machinery to the different host plant species they consume. If different hosts are used from one generation to the next, adaptation may be highly plastic, while if a single host is used over several generations there may be a longer-term response due to natural selection. Using an experimental evolutionary approach, we investigated effects of long-term experience versus short-term responses to different host plants in the oligophagous mustard leaf beetle Phaedon cochleariae...
September 16, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28921765/assessing-fire-impacts-on-the-carbon-stability-of-fire-tolerant-forests
#17
Lauren T Bennett, Matthew J Bruce, Josephine Machunter, Michele Kohout, Saravanan Jangammanaidu Krishnaraj, Cristina Aponte
The carbon stability of fire-tolerant forests is often assumed but less frequently assessed, limiting potential to anticipate threats to forest carbon posed by predicted increases in forest fire activity. Assessing the carbon stability of fire-tolerant forests requires multi-indicator approaches that recognise the myriad of ways that fires influence the carbon balance including combustion, deposition of pyrogenic material, and tree death, post-fire decomposition, recruitment, and growth. Five years after a large-scale wildfire in south-eastern Australia, we assessed the impacts of low- and high-severity wildfire, with and without prescribed fire (≤ 10 years before), on carbon stocks in multiple pools, and on carbon stability indicators (carbon stock percentages in live trees and in small trees, and carbon stocks in char and fuels) in fire-tolerant eucalypt forests...
September 16, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28921688/outcomes-of-infants-with-a-birthweight-less-than-or-equal-to-500-g-in-northern-england-15-years-experience
#18
Jenna Gillone, Nishant Banait, Nicola Miller, Martin Ward Platt, Sundeep Harigopal
AIM: We aimed to evaluate mortality and short-term neonatal morbidity of babies born ≤500 g cared for in the Northern Neonatal Network over a 15-year period. METHOD: Using regional databases, we identified all live-born babies ≥22 weeks gestation and ≤500 g, in North East England and North Cumbria from 1998 to 2012. We quantified major neonatal morbidities and survival to one year. RESULTS: We identified 104 live-born babies ≥22 weeks gestation and ≤500 g (birth prevalence 0...
September 17, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28921686/the-effects-of-dynamical-synapses-on-firing-rate-activity-a-spiking-neural-network-model
#19
Radwa Khalil, Marie Z Moftah, Ahmed A Moustafa
Accumulating evidence relates the fine-tuning of synaptic maturation and regulation of neural network activity to several key factors, including GABAA signaling and a lateral spread length between neighboring neurons (i.e. local connectivity). Furthermore, a number of studies consider Short-Term synaptic Plasticity (STP) as an essential element in the instant modification of synaptic efficacy in the neuronal network and in modulating responses to sustained ranges of external Poisson Input Frequency (IF). Nevertheless, evaluating the firing activity in response to the dynamical interaction between STP (triggered by ranges of IF), and these key parameters in vitro remains elusive...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921629/validation-of-prognostic-scores-to-predict-short-term-mortality-in-patients-with-acute-on-chronic-liver-failure
#20
Do Seon Song, Tae Yeob Kim, Dong Joon Kim, Hee Yeon Kim, Dong Hyun Sinn, Eileen L Yoon, Chang Wook Kim, Young Kul Jung, Ki Tae Suk, Sang Soo Lee, Chang Hyeong Lee, Tae Hun Kim, Won Hyeok Choe, Hyung Joon Yim, Sung Eun Kim, Soon Koo Baik, Jae Young Jang, Hyoung Su Kim, Sang Gyune Kim, Jin Mo Yang, Joo Hyun Sohn, Eun Hee Choi, Hyun Chin Cho, Soung Won Jeong, Moon Young Kim
BACKGROUND AND AIM: The aim of this study was to validate the Chronic Liver Failure-Sequential Organ Failure Assessment score (CLIF-SOFAs), CLIF consortium organ failure score (CLIF-C OFs), CLIF-C acute-on-chronic liver failure score (CLIF-C ACLFs), and CLIF-C acute decompensation score (CLIF-C ADs) in Korean chronic liver disease patients with acute deterioration. METHODS: ACLF was defined by either the Asian Pacific Association for the Study of the Liver ACLF Research Consortium (AARC) or CLIF-C criteria...
September 16, 2017: Journal of Gastroenterology and Hepatology
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