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https://www.readbyqxmd.com/read/28441748/convergent-validity-of-a-wearable-sensor-system-for-measuring-sub-task-performance-during-the-timed-up-and-go-test
#1
James Beyea, Chris A McGibbon, Andrew Sexton, Jeremy Noble, Colleen O'Connell
BACKGROUND: The timed-up-and-go test (TUG) is one of the most commonly used tests of physical function in clinical practice and for research outcomes. Inertial sensors have been used to parse the TUG test into its composite phases (rising, walking, turning, etc.), but have not validated this approach against an optoelectronic gold-standard, and to our knowledge no studies have published the minimal detectable change of these measurements. METHODS: Eleven adults performed the TUG three times each under normal and slow walking conditions, and 3 m and 5 m walking distances, in a 12-camera motion analysis laboratory...
April 23, 2017: Sensors
https://www.readbyqxmd.com/read/28441732/modified-nucleotides-as-substrates-of-terminal-deoxynucleotidyl-transferase
#2
Daiva Tauraitė, Jevgenija Jakubovska, Julija Dabužinskaitė, Maksim Bratchikov, Rolandas Meškys
The synthesis of novel modified nucleotides and their incorporation into DNA sequences opens many possibilities to change the chemical properties of oligonucleotides (ONs), and, therefore, broaden the field of practical applications of modified DNA. The chemical synthesis of nucleotide derivatives, including ones bearing thio-, hydrazino-, cyano- and carboxy groups as well as 2-pyridone nucleobase-containing nucleotides was carried out. The prepared compounds were tested as substrates of terminal deoxynucleotidyl transferase (TdT)...
April 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441700/ultrasound-based-renal-sympathetic-denervation-for-the-treatment-of-therapy-resistant-hypertension-a-single-center-experience
#3
Karl Fengler, Robert Höllriegel, Thomas Okon, Thomas Stiermaier, Karl-Philipp Rommel, Stephan Blazek, Christian Besler, Max von Roeder, Martin Petzold, Gerhard Schuler, Philipp Lurz
INTRODUCTION: The effectiveness of renal sympathetic denervation (RDN) as a treatment for therapy-resistant hypertension has been doubted as the Simplicity-HTN-3 trial was unable to show any treatment benefit over sham procedure. This might partly be explained by a high procedural variability in treatment with radiofrequency-based catheters. Recently, newer systems for RDN, like ultrasound-based devices, have been introduced into practice. To date however, data on their effectiveness for the treatment of resistant hypertension are scarce...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28441696/declining-blood-pressure-and-intensification-of-blood-pressure-management-among-people-over-80-years-cohort-study-using-electronic-health-records
#4
Rathi Ravindrarajah, Alex Dregan, Nisha C Hazra, Shota Hamada, Stephen H D Jackson, Martin C Gulliford
BACKGROUND: Management of high blood pressure (BP) in people over 80 years is controversial, but there is limited information available concerning the uptake of hypertension treatment at this age. OBJECTIVE: To evaluate use of antihypertensive drugs and changes in SBP and DBP from 2001 to 2014 in men and women aged 80 years and over. METHODS: Cohort study using primary care electronic health records of 265 225 participants from the UK Clinical Practice Research Datalink...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28441675/teaching-today-in-the-practice-setting-of-the-future-implementing-innovations-in-graduate-medical-education
#5
Jung G Kim, Carl G Morris, Paul Ford
PROBLEM: Implementing an innovation, such as offering new types of patient-physician encounters through the patient-centered medical home (PCMH) model while maintaining Accreditation Council for Graduate Medical Education (ACGME) accreditation standards (e.g., patient encounter minimums for trainees), is challenging. APPROACH: In 2009, the Group Health Family Medicine Residency (GHFMR) received an ACGME Program Experimentation and Innovation Project (PEIP) exception that redefined the minimum Family Medicine Resident Review Committee requirement to 1,400 face-to-face visits and 250 electronic visits (1 electronic visit defined as 3 secure message or telephone encounters)...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441672/how-to-lead-the-way-through-complexity-constraint-and-uncertainty-in-academic-health-science-centers
#6
Susan J Lieff, Francis J Yammarino
Academic medicine is in an era of unprecedented and constant change due to fluctuating economies, globalization, emerging technologies, research, and professional and educational mandates. Consequently, academic health science centers (AHSCs) are facing new levels of complexity, constraint, and uncertainty. Currently, AHSC leaders work with competing academic and health service demands and are required to work with and are accountable to a diversity of stakeholders. Given the new challenges and emerging needs, the authors believe the leadership methods and approaches AHSCs have used in the past that led to successes will be insufficient...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441671/swimming-upstream-creating-a-culture-of-high-value-care
#7
Reshma Gupta, Christopher Moriates
As health system leaders strategize the best ways to encourage the transition toward value-based health care, the underlying culture-defined as a system of shared assumptions, values, beliefs, and norms existing within an environment-continues to shape clinician practice patterns. The current prevailing medical culture contributes to overtesting, overtreatment, and health care waste. Choosing Wisely lists, appropriateness criteria, and guidelines codify best practices, but academic medicine as a whole must recognize that faculty and trainees are all largely still operating within the same cultural climate...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441523/carbohydrates-and-gibberellins-relationship-in-potato-tuberization
#8
Hana Ševčíková, Petra Mašková, Danuše Tarkowská, Tomáš Mašek, Helena Lipavská
Potato represents the third most important crop worldwide and therefore to understand regulations of tuber onset is crucial from both theoretical and practical points of view. Photosynthesis and related carbohydrate status along with phytohormone balance belong to the essential factors in regulation of plant development including storage organ formation. In our work we used potato (Solanum tuberosum) cv. Lada and its spontaneously tuberizing mutant (ST plants) grown in vitro under low carbohydrate availability (non-inductive conditions)...
April 8, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28441410/creating-and-parameterizing-patient-specific-deep-brain-stimulation-pathway-activation-models-using-the-hyperdirect-pathway-as-an-example
#9
Kabilar Gunalan, Ashutosh Chaturvedi, Bryan Howell, Yuval Duchin, Scott F Lempka, Remi Patriat, Guillermo Sapiro, Noam Harel, Cameron C McIntyre
BACKGROUND: Deep brain stimulation (DBS) is an established clinical therapy and computational models have played an important role in advancing the technology. Patient-specific DBS models are now common tools in both academic and industrial research, as well as clinical software systems. However, the exact methodology for creating patient-specific DBS models can vary substantially and important technical details are often missing from published reports. OBJECTIVE: Provide a detailed description of the assembly workflow and parameterization of a patient-specific DBS pathway-activation model (PAM) and predict the response of the hyperdirect pathway to clinical stimulation...
2017: PloS One
https://www.readbyqxmd.com/read/28441386/graft-derived-cell-free-dna-a-noninvasive-early-rejection-and-graft-damage-marker-in-liver-transplantation-a-prospective-observational-multicenter-cohort-study
#10
Ekkehard Schütz, Anna Fischer, Julia Beck, Markus Harden, Martina Koch, Tilo Wuensch, Martin Stockmann, Björn Nashan, Otto Kollmar, Johannes Matthaei, Philipp Kanzow, Philip D Walson, Jürgen Brockmöller, Michael Oellerich
BACKGROUND: Graft-derived cell-free DNA (GcfDNA), which is released into the blood stream by necrotic and apoptotic cells, is a promising noninvasive organ integrity biomarker. In liver transplantation (LTx), neither conventional liver function tests (LTFs) nor immunosuppressive drug monitoring are very effective for rejection monitoring. We therefore hypothesized that the quantitative measurement of donor-derived cell-free DNA (cfDNA) would have independent value for the assessment of graft integrity, including damage from acute rejection...
April 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28441335/systematic-review-of-cognitive-behavioural-therapy-for-social-anxiety-disorder-in-psychosis
#11
REVIEW
Maria Michail, Max Birchwood, Lynda Tait
BACKGROUND: Social anxiety is highly prevalent among people with psychosis and linked with significant social disability and poorer prognosis. Although cognitive-behavioural therapy (CBT) has shown to be effective for the treatment of social anxiety in non-psychotic populations, there is a lack of evidence on the clinical effectiveness of CBT for the treatment of social anxiety when this is co-morbid in psychosis. METHODS: A systematic review to summarise and critically appraise the literature on the effectiveness of CBT interventions for the treatment of social anxiety in psychosis...
April 25, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28441282/magnetic-field-reference-levels-for-arbitrary-periodic-waveforms-for-prevention-of-peripheral-nerve-stimulation
#12
Gregory B Gajda, Stephen H Bly
Guidelines for prevention of peripheral nerve stimulation from exposure to low frequency magnetic fields have been developed by standard-setting bodies. Exposure limits or reference levels (RLs) are typically set in terms of the maximum root-mean-square amplitude of a sinusoidal waveform; however, environmental flux densities are often periodic, non-sinusoidal waveforms. This work presents a procedure for deriving RLs for any generalized periodic waveform using the empirical nerve-stimulation threshold data obtained from human volunteer MRI experiments...
June 2017: Health Physics
https://www.readbyqxmd.com/read/28441151/recent-clinical-trials-in-valvular-heart-disease
#13
Daniel Kiss, Saif Anwaruddin
PURPOSE OF REVIEW: With widespread adoption of transcatheter aortic valve replacement, there has been a change in the approach to management of valvular heart disease. New interest has taken hold in transcatheter therapies for valvular heart disease, as well as research into pathophysiology and progression of disease. Additionally, several key trials have further refined our understanding of surgical management of valvular heart disease. This review will elucidate recent clinical trial data leading to changes in practice...
April 24, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28441128/early-career-work-location-of-memorial-university-medical-graduates-why-the-decline-in-rural-practice
#14
Maria Mathews, Dana Ryan, Asoka Samarasena
INTRODUCTION: In a previous study, we found a decline in the proportion of Memorial University of Newfoundland (MUN) medical alumni practising in rural areas, particularly in Newfoundland and Labrador. The current study focused on the work location of recent graduates and examined the predictors of working in rural Canada and in rural Newfoundland and Labrador within the first 15 years following graduation. METHODS: We linked data from graduating class lists and the alumni and postgraduate databases with Scott's Medical Database to create a record of all graduates from 1973 to 2008, including their work location...
2017: Canadian Journal of Rural Medicine
https://www.readbyqxmd.com/read/28441112/second-line-hormonal-therapy-for-men-with-chemotherapy-na%C3%A3-ve-castration-resistant-prostate-cancer-american-society-of-clinical-oncology-provisional-clinical-opinion
#15
Katherine S Virgo, Ethan Basch, D Andrew Loblaw, Tom Oliver, R Bryan Rumble, Michael A Carducci, Luke Nordquist, Mary-Ellen Taplin, Eric Winquist, Eric A Singer
Purpose ASCO provisional clinical opinions (PCOs) offer direction to the ASCO membership after publication or presentation of potential practice-changing data. This PCO addresses second-line hormonal therapy for chemotherapy-naïve men with castration-resistant prostate cancer (CRPC) who range from being asymptomatic with only biochemical evidence of CRPC to having documented metastases but minimal symptoms. Clinical Context The treatment goal for CRPC is palliation. Despite resistance to initial androgen deprivation therapy, most men respond to second-line hormonal therapies...
April 25, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28440888/training-dual-tasks-together-or-apart-in-parkinson-s-disease-results-from-the-duality-trial
#16
Carolien Strouwen, Esther A L M Molenaar, Liesbeth Münks, Samyra H J Keus, Jan C M Zijlmans, Wim Vandenberghe, Bastiaan R Bloem, Alice Nieuwboer
BACKGROUND AND OBJECTIVES: Many controversies surround the usefulness of dual-task training in Parkinson's disease (PD). This study (1) compared the efficacy of two different dual-task training programs for improving dual-task gait and (2) assessed the possible fall risk of such training. METHODS: Patients (N = 121) with a diagnosis of PD (aged 65.93 [±9.22] years, Hoehn and Yahr stage II-III on-medication) were randomized to (1) a consecutive group in which gait and cognitive tasks were trained separately or (2) an integrated group in which gait and cognitive tasks were trained simultaneously...
April 25, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28440825/radio-frequency-negative-permittivity-in-random-carbon-nanotubes-alumina-nanocomposites
#17
Chuanbing Cheng, Runhua Fan, Yanrong Ren, Tao Ding, Lei Qian, Jiang Guo, Xiaofeng Li, Liqiong An, Yanhua Lei, Yansheng Yin, Zhanhu Guo
While metal is the most common conductive constituent element in the preparation of metamaterials, one-dimensional conductive carbon nanotubes (CNTs) provide alternative building blocks. Here alumina (Al2O3) nanocomposites with multi-walled carbon nanotubes (MWCNTs) uniformly dispersed in the alumina matrix were prepared by hot-pressing sintering. As the MWCNT content increased, the formed conductive MWCNT networks led to the occurrence of the percolation phenomenon and a change of the conductive mechanism...
April 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28440751/validation-in-daily-clinical-situations-of-diascope-%C3%A2-a-software-developed-to-help-healthcare-professionals-individualize-antidiabetic-treatment-in-type-2-diabetes
#18
Francisco Javier Ampudia-Blasco, Francisco Javier García-Soidán, Manuela Rubio Sánchez, Tra-Mi Phan
INTRODUCTION: DiaScope(®) is a software to help in individualized prescription of antidiabetic treatment in type 2 diabetes. This study assessed its value and acceptability by different professionals. MATERIAL AND METHODS: DiaScope(®) was developed based on the ADA-EASD 2012 algorithm and on the recommendation of 12 international diabetes experts using the RAND/UCLA appropriateness method. The current study was performed at a single session. In the first phase, 5 clinical scenarios were evaluated, selecting the most appropriated therapeutic option among 4 possibilities (initial test)...
March 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440722/twelve-tips-for-teaching-about-patients-with-cognitive-impairment
#19
James Michael Fisher, Ellen Tullo, Kwong Chan, Andrew Teodorczuk
The global population is ageing and consequently cognitive problems are increasingly prevalent. To ensure that the healthcare needs of this complex group are met, healthcare professionals must receive adequate training in this field. There are, however, a variety of reasons why this is not currently being achieved, including, but not limited to: ethical and logistical issues relating to the delivery of educational experiences involving cognitively impaired patients; a failure of curricula to keep pace with the changing demographic; societal and institutional ageism; and the inherent complexity of the conditions...
May 2017: Medical Teacher
https://www.readbyqxmd.com/read/28440691/n-butyl-2-cyanoacrylate-based-injectable-and-in-situ-forming-implants-for-efficient-intratumoral-chemotherapy
#20
Yanpu Wu, Luming Wang, Kaili Zhang, Lixiao Zhou, Xiaobing Zhang, Xuecheng Jiang, Chenggang Zhu
The local delivery of chemotherapeutic drugs to tumor sites is an effective approach for achieving therapeutic drug concentrations in solid tumors. Injectable implants with the ability to form in situ represent one of the most promising technologies for intratumoral chemotherapy. However, many issues must be resolved before these implants can be applied in clinical practice. Herein, we report a novel injectable in situ-forming implant system composed of n-butyl-2-cyanoacrylate (NBCA) and ethyl oleate, and the sol-gel phase transition is activated by anions in body fluids or blood...
November 2017: Drug Delivery
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