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https://www.readbyqxmd.com/read/28340502/trends-in-alcohol-consumption-among-older-americans-national-health-interview-surveys-1997-to-2014
#1
Rosalind A Breslow, I-Jen P Castle, Chiung M Chen, Barry I Graubard
BACKGROUND: The majority of U.S. older adults consume alcoholic beverages. The older population is projected to almost double by 2050. Substantially more drinkers are likely. PURPOSE: To describe gender-specific trends (1997 to 2014) in prevalence of drinking status (lifetime abstention, former drinking, current drinking [including average volume], and binge drinking) among U.S. adults ages 60+ by age group and birth cohort. METHODS: In the 1997 to 2014 National Health Interview Surveys, 65,303 respondents ages 60+ (31,803 men, 33,500 women) were current drinkers; 6,570 men and 1,737 women were binge drinkers...
March 24, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28340490/a-novel-method-of-neo-osseous-flap-prefabrication-induction-of-free-calvarial-periosteum-with-bioactive-glass
#2
Ali Aliyev, Omer Ekin, Ozan Bitik, Gokhan Tuncbilek
Background Reconstruction of craniofacial bone defects is a primary focus of craniofacial surgery. Although autogenous bone grafts remain as the gold standard, alloplastic materials have also gained widespread popularity due to their off-the-shelf availability, ease of use, and durability. In addition to replacing the missing bone, some of these alloplastic materials have also been found to induce new bone formation. Objectives In this study, the phenomenon of neo-osseous induction with bioactive glass was investigated for different implant-soft tissue configurations...
March 24, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28340485/an-approach-for-liposome-immobilization-using-sterically-stabilized-micelles-ssms-as-a-precursor-for-bio-layer-interferometry-based-interaction-studies
#3
Jakob Wallner, Gabriele Lhota, Markus Schosserer, Karola Vorauer-Uhl
Non-fluidic bio-layer interferometry (BLI) has rapidly become a standard tool for monitoring almost all biomolecular interactions in a label-free, real-time and high-throughput manner. High-efficiency screening methods which measure the kinetics of liposomes with a variety of compounds require the immobilization of liposomes. In this work, a method is described for immobilizing liposomes for interaction studies, based on the biophysical principles of this biosensor platform. The immobilization approach includes the loading of DSPE-PEG(2000)-biotin containing sterically stabilized micelles (SSMs) which are restructured in a buffer change step, resulting in an accessible substrate for liposome immobilization...
March 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28340479/additive-effects-prevail-the-response-of-biota-to-multiple-stressors-in-an-intensively-monitored-watershed
#4
Alexander Gieswein, Daniel Hering, Christian K Feld
Freshwater ecosystems are impacted by a range of stressors arising from diverse human-caused land and water uses. Identifying the relative importance of single stressors and understanding how multiple stressors interact and jointly affect biology is crucial for River Basin Management. This study addressed multiple human-induced stressors and their effects on the aquatic flora and fauna based on data from standard WFD monitoring schemes. For altogether 1095 sites within a mountainous catchment, we used 12 stressor variables covering three different stressor groups: riparian land use, physical habitat quality and nutrient enrichment...
March 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340474/studying-the-effects-of-natural-extracts-with-metabolomics-a-longitudinal-study-on-the-supplementation-of-healthy-rats-with-polygonum-cuspidatum-sieb-et-zucc
#5
Gregorio Peron, Jalal Uddin, Matteo Stocchero, Stefano Mammi, Elisabetta Schievano, Stefano Dall'Acqua
BACKGROUND: A longitudinal study was performed to evaluate the effects of Polygonum cuspidatum extract (standardized at 20% resveratrol) supplementation on healthy rats. The effects were explored by monitoring urinary metabolome changes using UPLC-HRMS and (1)H NMR-based approaches. The aim of the study was to explore the effects of P. cuspidatum supplementation on a healthy animal model using metabolomics, in order to determine possible modes of action and obtain information on bioactivity...
March 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28340462/assessment-of-arsenic-and-fluorine-in-surface-soil-to-determine-environmental-and-health-risk-factors-in-the-comarca-lagunera-mexico
#6
Yareli A Sariñana-Ruiz, Jorge Vazquez-Arenas, Fabiola S Sosa-Rodríguez, Israel Labastida, Ma Aurora Armienta, Antonio Aragón-Piña, Miguel A Escobedo-Bretado, Laura S González-Valdez, Patricia Ponce-Peña, Hugo Ramírez-Aldaba, René H Lara
Total, bioaccessible and mobile concentrations of arsenic and fluorine are determined in polluted surface soil within the Comarca Lagunera region using standardized protocols to obtain a full description of the environmental behavior for these elements. The composition of mineral phases associated with them is evaluated with microscopic and spectroscopic techniques. Mineralogical characterizations indicate that ultra-fine particles (<1-5 μm) including mimetite-vanadite (Pb5(AsO4)3Cl, Pb5(AsO4, VO4)3Cl)-like, lead arseniate (Pb3(AsO4)2)-like and complex arsenic-bearing compounds are main arsenic-bearing phases, while fluorite (CaF2) is the only fluorine-bearing phase...
March 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28340449/right-hemisphere-pitch-mismatch-negativity-reduction-in-patients-with-major-depression-an-meg-study
#7
Noriaki Hirakawa, Yoji Hirano, Itta Nakamura, Shogo Hirano, Jinya Sato, Naoya Oribe, Takefumi Ueno, Shigenobu Kanba, Toshiaki Onitsuka
BACKGROUND: The mismatch negativity (MMN) component of the event-related potential and its magnetic counterpart, the MMNm, are generated by a mismatch between the physical features of a deviant stimulus and a neuronal sensory-memory trace produced by repetitive standard stimuli. Deficits in the MMN/MMNm have been reported in patients with major depression; however, the results are inconsistent. The present study investigated the pitch-MMNm in patients with major depression using whole-head 306-channel magnetoencephalography (MEG)...
March 19, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28340395/a-quint-wavelength-uv-spectroscopy-for-simultaneous-determination-of-dichlorobenzene-chlorobenzene-and-benzene-in-simulated-water-reduced-by-nanoscale-zero-valent-fe-ni-bimetal
#8
Xiaofang Wan, Yu Liu, Xin-Sheng Chai, Youming Li, Congbao Guo
A quint-wavelength UV spectroscopy for rapid determination of dichlorobenzene (DCB), chlorobenzene (CB) and benzene (B) was developed for the dechlorination process of DCB reduced by nanoscale zero-valent Fe/Ni bimetal. Based on the absorbance measurements at 260, 269, 277, 290 and 300nm, the equations for calculating the concentration of DCB and CB and B were established, in which the spectral interference from the nanoparticles could be effectively minimized. The results show that the present method has a good measurement precision (the relative standard deviations are within 2...
March 18, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28340392/-237-np-analytical-method-using-239-np-tracers-and-application-to-a-contaminated-nuclear-disposal-facility
#9
Mathew S Snow, Samuel S Morrison, Sue B Clark, John E Olson, Matthew G Watrous
Environmental (237)Np analyses are challenged by low (237)Np concentrations and lack of an available yield tracer; we report a rapid, inexpensive (237)Np analytical approach employing the short lived (239)Np (t1/2 = 2.3 days) as a chemical yield tracer followed by (237)Np quantification using inductively coupled plasma-mass spectrometry. (239)Np tracer is obtained via separation from a (243)Am stock solution and standardized using gamma spectrometry immediately prior to sample processing. Rapid digestions using a commercial, 900 W "Walmart" microwave and Parr microwave vessels result in 99...
March 21, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28340371/walking-adaptability-assessments-with-the-interactive-walkway-between-systems-agreement-and-sensitivity-to-task-and-subject-variations
#10
Daphne J Geerse, Bert H Coolen, Melvyn Roerdink
The ability to adapt walking to environmental circumstances is an important aspect of walking, yet difficult to assess. The Interactive Walkway was developed to assess walking adaptability by augmenting a multi-Kinect-v2 10-m walkway with gait-dependent visual context (stepping targets, obstacles) using real-time processed markerless full-body kinematics. In this study we determined Interactive Walkway's usability for walking-adaptability assessments in terms of between-systems agreement and sensitivity to task and subject variations...
March 2, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28340351/bedside-back-to-bench-building-bridges-between-basic-and-clinical-genomic-research
#11
Teri A Manolio, Douglas M Fowler, Lea M Starita, Melissa A Haendel, Daniel G MacArthur, Leslie G Biesecker, Elizabeth Worthey, Rex L Chisholm, Eric D Green, Howard J Jacob, Howard L McLeod, Dan Roden, Laura Lyman Rodriguez, Marc S Williams, Gregory M Cooper, Nancy J Cox, Gail E Herman, Stephen Kingsmore, Cecilia Lo, Cathleen Lutz, Calum A MacRae, Robert L Nussbaum, Jose M Ordovas, Erin M Ramos, Peter N Robinson, Wendy S Rubinstein, Christine Seidman, Barbara E Stranger, Haoyi Wang, Monte Westerfield, Carol Bult
Genome sequencing has revolutionized the diagnosis of genetic diseases. Close collaborations between basic scientists and clinical genomicists are now needed to link genetic variants with disease causation. To facilitate such collaborations, we recommend prioritizing clinically relevant genes for functional studies, developing reference variant-phenotype databases, adopting phenotype description standards, and promoting data sharing.
March 23, 2017: Cell
https://www.readbyqxmd.com/read/28340333/the-randomized-crm-an-approach-to-overcoming-the-long-memory-property-of-the-crm
#12
Joseph S Koopmeiners, Andrew Wey
The primary object of a Phase I clinical trial is to determine the maximum tolerated dose (MTD). Typically, the MTD is identified using a dose-escalation study, where initial subjects are treated at the lowest dose level and subsequent subjects are treated at progressively higher dose levels until the MTD is identified. The continual reassessment method (CRM) is a popular model-based dose-escalation design, which utilizes a formal model for the relationship between dose and toxicity to guide dose finding. Recently, it was shown that the CRM has a tendency to get "stuck" on a dose level, with little escalation or de-escalation in the late stages of the trial, due to the long-memory property of the CRM...
March 1, 2017: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/28340315/systematic-behavioural-observation-of-executive-performance-after-brain-injury
#13
Mark W Lewis, Duncan R Babbage, Janet M Leathem
OBJECTIVE: To develop an ecologically valid measure of executive functioning (i.e. Planning and Organization, Executive Memory, Initiation, Cognitive Shifting, Impulsivity, Sustained and Directed Attention, Error Detection, Error Correction and Time Management) during a functional chocolate brownie cooking task. METHODS: In Study 1, the inter-rater reliability of a novel behavioural observation assessment method was assessed with 10 people with traumatic brain injury (TBI)...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28340256/sleep-disturbance-of-adults-with-a-brain-tumor-and-their-family-caregivers-a-systematic-review
#14
Megan Soohwa Jeon, Haryana M Dhillon, Meera R Agar
The high incidence and psychophysiological morbidities of sleep disturbance in cancer have been increasingly recognized. Yet, more detailed understanding of sleep disturbance and options for management have been neglected areas in both clinical care and research. Brain tumor patients have been particularly overlooked. A systematic search of the literature from 1990 to 2015 was performed to review sleep disturbance in adults with primary or secondary brain tumor and their family caregivers. Fifty eligible studies were identified, of which 12 focused on sleep, 37 reported sleep items within a health-related quality of life measure and 1 reported caregivers' sleep...
March 15, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28340253/diagnostic-value-prognostic-value-and-safety-of-provocation-discography
#15
Zachary L McCormick, Fred DeFrancesch, Vivek Loomba, Maxim Moradian, Ramesh Bathina, George Rappard
No abstract text is available yet for this article.
March 18, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340250/improving-safety-culture-in-hospitals-facilitators-and-barriers-to-implementation-of-systemic-falls-investigative-method-sfim
#16
Aleksandra A Zecevic, Alvin Ho-Ting Li, Charity Ngo, Michelle Halligan, Anita Kothari
Objective: The purpose of this study was to assess the facilitators and barriers to implementation of the Systemic Falls Investigative Method (SFIM) on selected hospital units. Design: A cross-sectional explanatory mixed methods design was used to converge results from a standardized safety culture survey with themes that emerged from interviews and focus groups. Findings were organized by six elements of the Ottawa Model of Research Use framework. Setting: A geriatric rehabilitation unit of an acute care hospital and a neurological unit of a rehabilitation hospital were selected purposefully due to the high frequency of falls...
March 17, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28340245/unacceptable-human-leucocyte-antigens-for-organ-offers-in-the-era-of-organ-shortage-influence-on-waiting-time-before-kidney-transplantation
#17
Malte Ziemann, Nicole Heßler, Inke R König, Nils Lachmann, Andrea Dick, Vanessa Ditt, Klemens Budde, Petra Reinke, Ute Eisenberger, Barbara Suwelack, Thomas Klein, Timm H Westhoff, Wolfgang Arns, Katrin Ivens, Antje Habicht, Lutz Renders, Dirk Stippel, Dominik Bös, Florian Sommer, Siegfried Görg, Martin Nitschke, Thorsten Feldkamp, Falko M Heinemann, Reinhard Kelsch
Background.: The assignment of human leucocyte antigens (HLAs) against which antibodies are detected as unacceptable antigens (UAGs) avoids allocation of HLA- incompatible allografts. There is uncertainty as to what extent UAGs decrease the probability of receiving a kidney offer. Methods.: Kidney transplantations in 3264 patients on the waiting lists of six German transplant centres were evaluated for a period of at least 2 years. The proportion of excluded offers due to UAGs was calculated as virtual panel-reactive antibodies (vPRAs)...
March 15, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340241/pragmatic-trial-informatics-a-perspective-from-the-nih-health-care-systems-research-collaboratory
#18
Rachel L Richesson, Beverly B Green, Reesa Laws, Jon Puro, Michael G Kahn, Alan Bauck, Michelle Smerek, Erik G Van Eaton, Meredith Zozus, W Ed Hammond, Kari A Stephens, Greg E Simon
Pragmatic clinical trials (PCTs) are research investigations embedded in health care settings designed to increase the efficiency of research and its relevance to clinical practice. The Health Care Systems Research Collaboratory, initiated by the National Institutes of Health Common Fund in 2010, is a pioneering cooperative aimed at identifying and overcoming operational challenges to pragmatic research. Drawing from our experience, we present 4 broad categories of informatics-related challenges: (1) using clinical data for research, (2) integrating data from heterogeneous systems, (3) using electronic health records to support intervention delivery or health system change, and (4) assessing and improving data capture to define study populations and outcomes...
March 14, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28340227/transplant-as-a-competing-risk-in-the-analysis-of-dialysis-patients
#19
Nan van Geloven, Saskia le Cessie, Friedo W Dekker, Hein Putter
Time-to-event analyses are frequently used in nephrology research, for instance, when recording time to death or time to peritonitis in dialysis patients. Many papers have pointed out the important issue of competing events (or competing risks) in such analyses. For example, when studying one particular cause of death it can be noted that patients also die from other causes. Such competing events preclude the event of interest from occurring and thereby complicate the statistical analysis. The Kaplan-Meier approach to calculating the cumulative probability of the event of interest yields invalid results in the presence of competing risks, thus the alternative cumulative incidence competing risk (CICR) approach has become the standard...
March 3, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340223/implantation-of-cardiac-resynchronization-therapy-devices-using-three-leads-by-cephalic-vein-dissection-approach
#20
Alexios Hadjis, Riccardo Proietti, Vidal Essebag
Aims: Percutaneous subclavian, axillary, and cephalic vein access are all used in conjunction for atrial and ventricular lead implantation, though no standard approach for cardiac resynchronization therapy (CRT) device implantation has been established. We describe an effective and a safe technique for implanting three leads via cephalic vein for CRT pacemaker and/or defibrillator implantations. Methods and results: A total of 171 consecutive patients undergoing de novo implantation of CRT pacemaker or defibrillator were included...
March 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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