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https://www.readbyqxmd.com/read/29775774/hospital-admissions-2000-2014-a-retrospective-analysis-of-288-096-events-in-patients-with-dementia
#1
Catarina Bernardes, João Massano, Alberto Freitas
INTRODUCTION: Dementia is a leading cause of disability worldwide. It is associated with an increased risk of hospitalization, imposing a significant burden on healthcare systems. The evidence on the long-term evolution of this issue and broadly on healthcare systems is currently limited. This study aims to describe the hospitalizations of people who received a diagnosis of dementia admitted to public general hospitals in a western European country with universal health coverage, over more than a decade...
May 8, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29775605/outcomes-of-planned-2-stage-hybrid-aortic-repair-with-dacron-replaced-proximal-landing-zone
#2
David N Ranney, Babatunde A Yerokun, Ehsan Benrashid, Muath Bishawi, Adam Williams, Richard L McCann, G Chad Hughes
BACKGROUND: Results of hybrid arch repair (HAR) utilizing native zone 0 proximal landing zone (PLZ) have been unsatisfactory in many series, especially in the setting of ascending aortic dilation (>4.0 cm). This study reports early and late outcomes of planned 2-stage HAR with open 1st stage proximal aortic replacement (PAR) followed by 2nd stage thoracic endovascular aortic repair (TEVAR) with PLZ within the Dacron replaced zone 0. METHODS: N=34 patients underwent planned 2-stage HAR between 1/2006-8/2017...
May 15, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29775480/titan-cells-formation-in-cryptococcus-neoformans-is-finely-tuned-by-environmental-conditions-and-modulated-by-positive-and-negative-genetic-regulators
#3
Benjamin Hommel, Liliane Mukaremera, Radames J B Cordero, Carolina Coelho, Christopher A Desjardins, Aude Sturny-Leclère, Guilhem Janbon, John R Perfect, James A Fraser, Arturo Casadevall, Christina A Cuomo, Françoise Dromer, Kirsten Nielsen, Alexandre Alanio
The pathogenic fungus Cryptococcus neoformans exhibits morphological changes in cell size during lung infection, producing both typical size 5 to 7 μm cells and large titan cells (> 10 μm and up to 100 μm). We found and optimized in vitro conditions that produce titan cells in order to identify the ancestry of titan cells, the environmental determinants, and the key gene regulators of titan cell formation. Titan cells generated in vitro harbor the main characteristics of titan cells produced in vivo including their large cell size (>10 μm), polyploidy with a single nucleus, large vacuole, dense capsule, and thick cell wall...
May 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29775421/probability-of-heat-intolerance-standardized-interpretation-of-heat-tolerance-testing-results-versus-specialist-judgment
#4
Haggai Schermann, Erin Craig, Einat Yanovich, Itay Ketko, Gary Kalmanovich, Ran Yanovich
CONTEXT:   The heat-tolerance test (HTT) is a screening tool for secondary prevention of exertional heat illness by the Israel Defense Forces. To discern participant tolerance, recruits are exposed to intermediate environmental and exercise stresses, and their physiological responses, core temperature, and heart rate are monitored. When their physiological measures rise at a higher rate or exceed the upper levels of absolute values compared with other participants, heat intolerance (HI) is diagnosed...
April 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29775408/lack-of-tone-in-mouse-small-mesenteric-arteries-leads-to-outward-remodeling-which-can-be-prevented-by-prolonged-agonist-induced-vasoconstriction
#5
Anika Klein, Philomeena Daphne Joseph, Vibeke Grøsfjeld Christensen, Lars Jørn Jensen, Jens Christian Brings Jacobsen
Inward remodeling of resistance vessels is an independent risk factor for cardiovascular events. Thus far, the remodeling process remains incompletely elucidated, but the activation level of the vascular smooth muscle cell (VSMC) appears to play a central role. Accordingly, previous data suggest that an antagonistic and, supposedly beneficial, response - outward remodeling - may follow prolonged vasodilatation. This study aims to determine if 1) outward remodeling follows 3 days of vessel culture without tone, 2) a similar response can be elicited in a much shorter 4-hour time frame and finally 3) a 4-hour response can be prevented or reversed by the presence of vasoconstrictors in the medium...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29775332/many-body-theory-for-positronium-atom-interactions
#6
D G Green, A R Swann, G F Gribakin
A many-body-theory approach has been developed to study positronium-atom interactions. As first applications, we calculate the elastic scattering and momentum-transfer cross sections and the pickoff annihilation rate ^{1}Z_{eff} for Ps collisions with He and Ne. For He the cross section is in agreement with previous coupled-state calculations, while comparison with experiment for both atoms highlights discrepancies between various sets of measured data. In contrast, the calculated ^{1}Z_{eff} (0.13 and 0.26 for He and Ne, respectively) are in excellent agreement with the measured values...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775306/mechanistic-study-on-water-splitting-reactions-by-small-silicon-clusters-si-3-x-x-si-be-mg-ca
#7
Tran Dieu Hang, Minh Tho Nguyen
(Abstract) Interaction, dissociation and dehydrogenation reactions of water monomer and dimer with pure and mixed tetrameric silicon clusters Si3X with X = Si, Be, Mg, Ca were investigated using high accuracy quantum chemical calculations. While geometries were optimized using the DFT/B3LYP functional with the aug-cc-pVTZ basis set, reaction energy profiles were constructed making use of the coupled-cluster theory with extrapolation to complete basis set, CCSD(T)/CBS. Cleavage of the O-H bond in water dimer is found to be more favored than that of water monomer in the reaction with Si4...
May 18, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29775213/individual-specific-qt-interval-correction-for-drugs-with-substantial-heart-rate-effect-using-holter-ecgs-extracted-over-a-wide-range-of-heart-rates
#8
Gopi Krishna Panicker, Pramod Kadam, Saikat Chakraborty, Snehal Kothari, J Rick Turner, Dilip R Karnad
Although fixed QT correction methods are typically used to adjust for the effect of heart rate on the QT interval in thorough QT/QTc studies, individual-specific QT correction (QTcI = QT/RRI ) is advisable for drugs that increase the heart rate by >5 to 10 beats/minute (bpm). QTcI is traditionally derived using resting drug-free electrocardiograms (ECGs) collected at prespecified times. However, the resting heart rate range in healthy individuals is narrow, and extrapolation of inferences from these data to higher heart rates could be inappropriate...
May 18, 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29775117/intravenous-low-dose-ketamine-provides-greater-pain-control-compared-to-fentanyl-in-a-civilian-prehospital-trauma-system-a-propensity-matched-analysis
#9
E Stein Bronsky, Catherine Koola, Alessandro Orlando, Diane Redmond, Cecile D'Huyvetter, Heather Sieracki, Allen Tanner, Ray Fowler, Charles Mains, David Bar-Or
OBJECTIVE: A few studies report comparable analgesic efficacy between low-dose ketamine and opioids such as morphine or fentanyl; however, limited research has explored the safety and effectiveness of intravenous low-dose ketamine as a primary analgesic in a civilian prehospital setting. The objective of this study is to compare pain control between low-dose ketamine and fentanyl when administered intravenously (IV) for the indication of severe pain. METHODS: This was a retrospective, observational review of prehospital adult patients (≥18 years) who presented with severe pain (numeric rating scale, 7-10) and were treated solely with either low-dose ketamine IV or fentanyl IV between January 1, 2014 and December 31, 2016...
May 18, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29775085/usage-of-therapeutic-sleep-deprivation-a-survey-in-psychiatric-hospitals-in-austria-germany-and-switzerland
#10
Dietmar Winkler, Marie Spies, Yasmin Al-Resheg, Joseph C Wu, William E Bunney, Blynn G Bunney, Siegfried Kasper, Edda Pjrek
OBJECTIVE: Therapeutic sleep deprivation (SD) is a nonpharmacological treatment that is used most often for depression. The aim of this study was to examine the pattern of use of SD in psychiatric hospitals in Austria, Germany, and Switzerland. METHODS: A questionnaire about perceived usage of SD was sent by mail to all 511 psychiatric hospitals in the three countries. Nonresponders were asked to answer the questionnaire by phone. We achieved a response rate of 75...
May 18, 2018: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/29775059/intrinsic-antioxidant-potential-of-the-aminoindole-structure-a-computational-kinetics-study-of-tryptamine
#11
Erika N Bentz, Rosana Maria Lobayan, Henar Martinez, Pilar Redondo, Antonio Largo
A computational kinetics study of the antioxidant activity of tryptamine toward HO● and HOO● radicals in water at 298 K has been carried out. Density functional methods have been employed for the quantum chemical calculations and conventional transition state theory was used for rate constants evaluation. Different mechanisms have been considered: radical adduct formation (RAF), single electron transfer (SET), and hydrogen atom transfer (HAT). For the reaction of tryptamine with the hydroxyl radical nearly all channels are diffusion controlled, and the overall rate constant is very high, 6...
May 18, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29775012/-the-clinical-value-of-china-savin-pollen-extract-used-for-skin-prick-test
#12
Kai Guan, J X Zhou, R Q Wang, J Yin, L L Wang, Y X Zhi, J L Sun, H Li, L P Wen, J Q Gu, R Tang, Z X Wang, L S Li, T Xu
Objective: The aim of this study is to evaluate the effectiveness and safety of China Savin pollen extract which was used for skin prick test (SPT) in the diagnosis of China Savin pollen allergy. Method: Patients with diagnosis of allergic diseases were collected from Allergy Department of Peking Union Medical College Hospital. All patients were given SPT with China Savin pollen extract, and the mean wheal diameter (MWD) was measured after 15 minutes. Receiver operating characteristic curve (ROC) analysis was performed based on the results of serum specific immunoglobulin E (sIgE)...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774954/adapting-population-models-for-application-in-pesticide-risk-assessment-a-case-study-with-mead-s-milkweed
#13
Amelie Schmolke, Colleen Roy, Richard Brain, Valery Forbes
Population models can facilitate assessment of potential impacts of pesticides on populations or species rather than individuals and have been identified as important tools for pesticide risk assessment of non-target species including those listed under the Endangered Species Act (ESA). Few examples of population models developed for this specific purpose are available, however, population models are commonly used in conservation science as a tool to project the viability of populations and the long-term outcomes of management actions...
May 18, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29774766/negative-prognostic-factors-and-resulting-clinical-outcome-in-patients-with-metastatic-renal-cell-carcinoma-included-in-the-italian-nivolumab-expanded-access-program
#14
Sergio Bracarda, Luca Galli, Marco Maruzzo, Giovanni Lo Re, Sebastiano Buti, Adolfo Favaretto, Francesco Di Costanzo, Cosimo Sacco, Marco Merlano, Claudia Mucciarini, Elena Zafarana, Sante Romito, Antonio Maestri, Carmelo G Giorgio, Maria T Ionta, Daniele Turci, Ugo De Giorgi, Giuseppe Procopio, Enrico Cortesi, Diana Giannarelli, Camillo Porta
AIM: We report the outcomes observed with nivolumab in metastatic renal cell carcinoma patients with poor prognostic features enrolled in the Italian expanded access program. PATIENTS & METHODS: Nivolumab was available for patients who relapsed after at least one prior systemic treatment in the advanced or metastatic setting. RESULTS: Of 389 patients, 32 (8%) had brain metastasis, 129 (33%) had liver and 193 (50%) had bone metastasis. These subpopulations achieved a disease control rate of 53, 45 and 47%, respectively...
May 18, 2018: Future Oncology
https://www.readbyqxmd.com/read/29774711/-health-impact-of-asbestos-fibres-naturally-occurring-in-mount-pollino-area-basilicata-region-southern-italy
#15
Angelo Caputo, Marco De Santis, Valerio Manno, Gabriella Cauzillo, Biagio Maria Bruni, Lorenzo Palumbo, Susanna Conti, Pietro Comba
OBJECTIVES: to estimate the health impact of asbestos fibres naturally occurring in Mount Pollino area (Basilicata Region, Southern Italy). DESIGN: geographic mortality, hospitalization, and incidence study. Setting and participant s: population resident in 12 Municipalities of Mount Pollino area with naturally occurring asbestos fibres. MAIN OUTCOME MEASURES: standardized mortality ratio (SMR) and standardized hospitalization rate (SHR) for asbestos-related diseases; standardized incidence ratio (SIR) for mesotheliomas...
March 2018: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/29774601/the-impact-of-mitral-stenosis-on-outcomes-of-aortic-valve-stenosis-patient-undergoing-surgical-aortic-valve-replacement-or-transcatheter-aortic-valve-replacement
#16
Yasser Al-Khadra, Fahed Darmoch, Motaz Baibars, Amir Kaki, Zaher Fanari, M Chadi Alraies
BACKGROUND: The concomitant presence of mitral stenosis (MS) in the setting of symptomatic aortic stenosis represent a clinical challenge. Little is known regarding the outcome of mitral stenosis (MS) patients undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR). Therefore, we sought to study the outcome of MS patients undergoing aortic valve replacement (AVR). METHOD: Using weighted data from the National Inpatient Sample (NIS) database between 2011 and 2014, we identified patients who were diagnosed with MS...
May 17, 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29774551/in-vitro-hemodynamic-evaluation-of-an-adult-pulsatile-extracorporeal-membrane-oxygenation-system
#17
Shigang Wang, Morgan Moroi, Christoph E Brehm, Allen R Kunselman, Akif Ündar
The objective of this study was to evaluate a pulsatile extracorporeal membrane oxygenation (ECMO) system in terms of hemodynamic energy generation and transmission under various pulsatile amplitudes, flow rates, and pseudopatient pressures in a simulated adult ECMO circuit. Surplus hemodynamic energy (SHE), a measure of the quality of pulsatility, was used to quantify pulsatile flow. The circuit consisted of an i-cor diagonal pump, an adult XLung oxygenator, a 21 Fr Medtronic Biomedicus femoral arterial cannula, a 23/25 Fr Sorin RAP femoral venous cannula, and 3/8 in ID tubing for both arterial and venous lines...
May 17, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29774457/vitamin-d-as-a-follicular-marker-of-human-oocyte-quality-and-a-serum-marker-of-in-vitro-fertilization-outcome
#18
Przemysław Ciepiela, Antoni J Dulęba, Ewelina Kowaleczko, Kornel Chełstowski, Rafał Kurzawa
PURPOSE: This study investigated the relationship between the vitamin D [25(OH)D] level in individual follicles and oocyte developmental competence. METHODS: A prospective cohort study in a private infertility center. Infertile women (N = 198) scheduled for intracytoplasmic sperm injection (ICSI) and a single embryo transfer (SET) provided serum samples and 322 follicular fluid (FF) specimens, each from a single follicle on the day of oocyte retrieval. RESULTS: FFs corresponding to successfully fertilized oocytes (following ICSI) contained significantly lower 25(OH)D level compared with those that were not fertilized (28...
May 17, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29774332/tuning-the-molecular-weight-of-polymeric-amphiphiles-as-a-tool-to-access-micelles-with-a-wide-range-of-enzymatic-degradation-rates
#19
Gadi Slor, Nitsan Papo, Uri Hananel, Roey J Amir
Enyzme-responsive polymeric assemblies hold great potential for biomedical applications due to the over-expression of disease-associated enzymes, which can be utilized to activate such systems only in afflicted tissues. Herein we demonstrate that the overall molecular weight of polymeric amphiphiles, which have the same hydrophilic/hydrophobic ratio, can be tuned to create polymeric micelles with an extreme range of degradation rates. This approach expands the available set of molecular parameters that can be adjusted to tune the degradation rate of polymeric assemblies, paving new possibilities for rational design of polymeric systems with controlled degradation rates...
May 18, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29774139/line-drawn-scenes-provide-sufficient-information-for-discrimination-of-threat-and-mere-negativity
#20
Jasmine Boshyan, Lisa Feldman Barrett, Nicole Betz, Reginald B Adams, Kestutis Kveraga
Previous work using color photographic scenes has shown that human observers are keenly sensitive to different types of threatening and negative stimuli and reliably classify them by the presence, and spatial and temporal directions of threat. To test whether such distinctions can be extracted from impoverished visual information, we used 500 line drawings made by hand-tracing the original set of photographic scenes. Sixty participants rated the scenes on spatial and temporal dimensions of threat. Based on these ratings, trend analysis revealed five scene categories that were comparable to those identified for the matching color photographic scenes...
January 2018: I-Perception
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