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https://www.readbyqxmd.com/read/28646753/mechanical-properties-and-molecular-structure-analysis-of-subsurface-dentin-after-er-yag-laser-irradiation
#1
Zhengdi He, Lingling Chen, Xuejuan Hu, Yasushi Shimada, Masayuki Otsuki, Junji Tagami, Shuangchen Ruan
The purpose of this study was to evaluate the chemical and mechanical modifications in subsurface dentin layer after Er: YAG (Erbium-Yttrium Aluminium Garnet) laser irradiation, as the guidance of new dental restorative materials specific for laser irradiated dentin. MATERIALS AND METHODS: Dentin disks obtained from extracted human molars were prepared and exposed to a single pulse Er:YAG laser irradiation at 80mJ/pulse. After laser irradiation the mechanical and chemical characteristics of intertubular dentin in subsurface layer were studied using nanoindentation tester and micro-Raman spectromy (μ-RS)...
June 3, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28646492/prenatal-perinatal-and-neonatal-risk-factors-for-perinatal-arterial-ischaemic-stroke-a-systematic-review-and-meta-analysis
#2
REVIEW
C Li, J K Miao, Y Xu, Y Y Hua, Q Ma, L L Zhou, H J Liu, Q X Chen
The aim of the present study was to perform a meta-analysis of published data to determine the significance of clinical factors and exposures to the risk of perinatal arterial ischaemic stroke (PAIS) and provide guidance for clinical diagnosis and treatment. A comprehensive literature search of the PubMed, Embase, MEDLINE and Cochrane Library databases for relevant observational studies (cohort/case-control) from March 1984 to March 2016 was undertaken. Two review authors independently examined the full text records to determine which studies met the inclusion criteria and evaluated risk factors for PAIS...
June 24, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28646373/ethical-challenges-unique-to-the-primary-care-behavioral-health-pcbh-model
#3
Christine N Runyan, Stephanie Carter-Henry, Stacy Ogbeide
The interprofessional nature of the Primary Care Behavioral Health (PCBH) model invites potential conflicts between different ethical guidelines and principles developed by separate professional disciplines. When the foundational model of care and training on which ethical principles were developed shifts, the assumptions underlying the guidance also shifts, revealing gaps and mismatches. This article reviews the extant literature in this realm, and proposes a more unifying set of ethical guidance for interprofessional, integrated primary care practice...
June 23, 2017: Journal of Clinical Psychology in Medical Settings
https://www.readbyqxmd.com/read/28646217/why-do-physicians-lack-engagement-with-smoking-cessation-treatment-in-their-copd-patients-a-multinational-qualitative-study
#4
Eva Anne Marije van Eerd, Mette Bech Risør, Mark Spigt, Maciek Godycki-Cwirko, Elena Andreeva, Nick Francis, Anja Wollny, Hasse Melbye, Onno van Schayck, Daniel Kotz
Smoking cessation is the only effective intervention to slow down the accelerated decline in lung function in smokers with chronic obstructive pulmonary disease. Nevertheless, physicians often do not routinely provide evidence-based smoking cessation treatment to their patients. To understand underlying reasons, we explored how physicians engage in smoking cessation treatment in their chronic obstructive pulmonary disease patients. In total, 21 focus group discussions were held with general practitioners and pulmonologists in seven different countries in Europe and Asia...
June 23, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28646080/considerations-from-the-iq-induction-working-group-in-response-to-drug-drug-interaction-guidances-from-regulatory-agencies-focus-on-down-regulation-cyp2c-induction-and-cyp2b6-positive-control
#5
Niresh Hariparsad, Diane Ramsden, Jairam Palamanda, Joshua G Dekeyser, Odette A Fahmi, Jane R Kenny, Heidi Einolf, Michael Mohutsky, Magalie Pardon, Amy Y Siu, Liangfu Chen, Michael Sinz, Barry Jones, Robert Walsky, Shannon Dallas, Suresh K Balani, George Zhang, David Buckley, Donald Tweedie
The European Medicines Agency (EMA), the Pharmaceutical and Medical Devices Agency and the Food and Drug Administration have issued guidances for the conduct of drug-drug interaction (DDI) studies. To examine the applicability of these regulatory recommendations specifically for induction, a group of scientists, under the auspices of the Drug Metabolism Leadership Group of the Innovation and Quality (IQ) Consortium, formed the Induction Working Group (WG). A team of 20 scientists, from 16 of the 39 pharmaceutical companies, which are members of the IQ Consortium, and three Contract Research Organizations, reviewed the recommendations, focusing initially on the current EMA guidance...
June 23, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28646017/ror%C3%AE-modulates-semaphorin-3e-transcription-and-neurovascular-interaction-in-pathological-retinal-angiogenesis
#6
Ye Sun, Chi-Hsiu Liu, Zhongxiao Wang, Steven S Meng, Samuel B Burnim, John Paul SanGiovanni, Theodore M Kamenecka, Laura A Solt, Jing Chen
Pathological proliferation of retinal blood vessels commonly causes vision impairment in proliferative retinopathies, including retinopathy of prematurity. Dysregulated crosstalk between the vasculature and retinal neurons is increasingly recognized as a major factor contributing to the pathogenesis of vascular diseases. Class 3 semaphorins (SEMA3s), a group of neuron-secreted axonal and vascular guidance factors, suppress pathological vascular growth in retinopathy. However, the upstream transcriptional regulators that mediate the function of SEMA3s in vascular growth are poorly understood...
June 23, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28645968/development-of-a-meta-algorithm-for-guiding-primary-care-encounters-for-patients-with-multimorbidity-using-evidence-based-and-case-based-guideline-development-methodology
#7
Cathleen Muche-Borowski, Dagmar Lühmann, Ingmar Schäfer, Rebekka Mundt, Hans-Otto Wagner, Martin Scherer
OBJECTIVE: The study aimed to develop a comprehensive algorithm (meta-algorithm) for primary care encounters of patients with multimorbidity. We used a novel, case-based and evidence-based procedure to overcome methodological difficulties in guideline development for patients with complex care needs. STUDY DESIGN: Systematic guideline development methodology including systematic evidence retrieval (guideline synopses), expert opinions and informal and formal consensus procedures...
June 22, 2017: BMJ Open
https://www.readbyqxmd.com/read/28645962/diagnosis-and-treatment-for-hyperuricaemia-and-gout-a-protocol-for-a-systematic-review-of-clinical-practice-guidelines-and-consensus-statements
#8
Qianrui Li, Xiaodan Li, Joey Sum-Wing Kwong, Hao Chen, Xin Sun, Haoming Tian, Sheyu Li
INTRODUCTION: Gout and hyperuricaemia are major health issues and relevant guidance documents have been released by a variety of national and international organisations. However, these documents contain inconsistent recommendations with unclear quality profiles. We aim to conduct a systematic appraisal of the clinical practice guidelines and consensus statements pertaining to the diagnosis and treatment for hyperuricaemia and gout, and to summarise recommendations. METHODS: We will search PubMed, EMBASE and guideline databases to identify published clinical practice guidelines and consensus statements...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28645950/variation-in-the-prevalence-of-urinary-catheters-a-profile-of-national-health-service-patients-in-england
#9
David Clifford Shackley, Cameron Whytock, Gareth Parry, Laurence Clarke, Charles Vincent, Abigail Harrison, Amber John, Lloyd Provost, Maxine Power
INTRODUCTION: Harm from catheter-associated urinary tract infections is a common, potentially avoidable, healthcare complication. Variation in catheter prevalence may exist and provide opportunity for reducing harm, yet to date is poorly understood. This study aimed to determine variation in the prevalence of urinary catheters between patient groups, settings, specialities and over time. METHODS: A prospective study (July 2012 to April 2016) of National Health Service (NHS) patients surveyed by healthcare professionals, following a standardised protocol to determine the presence of a urinary catheter and duration of use, on 1 day per month using the NHS Safety Thermometer...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28645885/the-threshold-of-toxicological-concern-for-prenatal-developmental-toxicity-in-rats-and-rabbits
#10
B van Ravenzwaay, X Jiang, T Luechtefeld, T Hartung
The Threshold Toxicological Concern (TTC) is based on the concept that in absence of experimental data reasonable assurance of safety can be given if exposure is sufficiently low. Using the REACH database the low 5th percentile of the NO(A)EL distribution, for prenatal developmental toxicity (OECD guideline 414) was determined. For rats, (434 NO(A)ELs values) for maternal toxicity, this value was 10 mg/kg-bw/day. For developmental toxicity (469 NO(A)ELs): 13 mg/kg-bw/day. For rabbits, (100 NO(A)ELs), the value for maternal toxicity was 4 mg/kg-bw/day, for developmental toxicity, (112 NO(A)EL values): 10 mg/kg-bw/day...
June 20, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28645836/percutaneous-treatment-of-the-tricuspid-valve-disease-new-hope-for-the-forgotten-valve
#11
Francisco Campelo-Parada, Olivier Lairez, Didier Carrié
Tricuspid valve disease is a frequent condition but is currently undertreated. A limited number of patients undergo an isolated surgical tricuspid repair, and this intervention is associated with poor outcomes, especially in patients with previous cardiac surgery. Most patients are only medically treated, despite the impact of severe tricuspid regurgitation on functional status and long-term survival. Transcatheter therapies represent a promising alternative for patients with severe tricuspid regurgitation and high surgical risk...
June 20, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28645672/percutaneous-pedicle-screw-placement-under-single-dimensional-fluoroscopy-with-a-designed-pedicle-finder-a-technical-note-and-case-series
#12
Fon-Yih Tsuang, Chia-Hsien Chen, Yi-Jie Kuo, Wei-Lung Tseng, Yuan-Shen Chen, Chin-Jung Lin, Chun-Jen Liao, Feng-Huei Lin, Chang-Jung Chiang
BACKGROUND CONTEXT: Minimally invasive spine surgery has become increasingly popular in clinical practice, and it offers patients the potential benefits of reduced blood loss, wound pain, and infection risk and also diminishes the loss of working time and length of hospital stay. However, surgeons require more intraoperative fluoroscopy and ionizing radiation exposure during minimally invasive spine surgery for localization, especially for guidance in instrumentation placement. In addition, computer navigation is not accessible in some facility-limited institutions...
June 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28645554/monocrotophos-an-organophosphorus-insecticide-disrupts-the-expression-of-hpnetrin-and-its-receptor-neogenin-during-early-development-in-the-sea-urchin-hemicentrotus-pulcherrimus
#13
Xiaona Zhang, Lei Xu, Hua Tian, Cuicui Wang, Wei Wang, Shaoguo Ru
Netrins, chemotropic guidance cues, can guide the extension of serotonergic axons by binding to netrin receptors during neural development. However, little is known about whether disruption of netrin signaling is involved in the mechanisms by which organophosphorus pesticides affect serotonergic nervous system (SNS) development. In this study, we evaluated the effects of the pesticide monocrotophos (MCP) on the expression patterns of HpNetrin and its receptor neogenin as well as on the intracellular calcium ion (Ca(2+)) levels in Hemicentrotus pulcherrimus (sea urchin) by exposing fertilized embryos to 0, 0...
June 20, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28645518/blood-gas-analyzer-accuracy-of-glucose-measurements
#14
Yafen Liang, Jonathan Wanderer, James H Nichols, David Klonoff, Mark J Rice
OBJECTIVE: To investigate the comparability of glucose levels measured with blood gas analyzers (BGAs) and by central laboratories (CLs). MATERIAL AND METHODS: Glucose measurements obtained between June 1, 2007, and March 1, 2016, at the Vanderbilt University Medical Center were reviewed. The agreement between CL and BGA results were assessed using Bland-Altman, consensus error grid (CEG), and surveillance error grid (SEG) analyses. We further analyzed the BGAs' performance against the US Food and Drug Administration (FDA) 2014 draft guidance and 2016 final guidance for blood glucose monitoring and the International Organization for Standardization (ISO) 15197:2013 standard...
June 7, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28645270/qualitative-modification-and-development-of-patient-and-caregiver-reported-outcome-measures-for-iron-chelation-therapy
#15
Erica G Horodniceanu, Vasudha Bal, Harman Dhatt, John A Carter, Vicky Huang, Kathryn Lasch
BACKGROUND: Compliance, palatability, gastrointestinal (GI) symptom, and treatment satisfaction patient- and observer-reported outcome (PRO, ObsRO) measures were developed/modified for patients with transfusion-dependent anemias or myelodysplastic syndrome (MDS) requiring iron chelation therapy (ICT). METHODS: This qualitative cross-sectional observational study used grounded theory data collection and analysis methods and followed PRO/ObsRO development industry guidance...
June 23, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28645214/sodium-fluorescein-facilitates-guided-sampling-of-diagnostic-tumor-tissue-in-nonenhancing-gliomas
#16
Stephen G Bowden, Justin A Neira, Brian J A Gill, Timothy H Ung, Zachary K Englander, George Zanazzi, Peter D Chang, Jorge Samanamud, Jack Grinband, Sameer A Sheth, Guy M McKhann, Michael B Sisti, Peter Canoll, Randy S D'Amico, Jeffrey N Bruce
BACKGROUND: Accurate tissue sampling in nonenhancing (NE) gliomas is a unique surgical challenge due to their intratumoral histological heterogeneity and absence of contrast enhancement as a guide for intraoperative stereotactic guidance. Instead, T2/fluid-attenuated inversion-recovery (FLAIR) hyperintensity on MRI is commonly used as an imaging surrogate for pathological tissue, but sampling from this region can yield nondiagnostic or underdiagnostic brain tissue. Sodium fluorescein is an intraoperative fluorescent dye that has a high predictive value for tumor identification in areas of contrast enhancement and NE in glioblastomas...
June 21, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28645191/how-effective-is-algorithm-guided-treatment-for-depressed-inpatients-results-from-the-randomized-controlled-multicenter-german-algorithm-project-3-trial
#17
Mazda Adli, Katja Wiethoff, Thomas C Baghai, Robert Fisher, Florian Seemüller, Gregor Laakmann, Peter Brieger, Joachim Cordes, Jaroslav Malevani, Gerd Laux, Iris Hauth, Hans-Jürgen Möller, Klaus-Thomas Kronmüller, Michael N Smolka, Peter Schlattmann, Maximilian Berger, Roland Ricken, Thomas J Stamm, Andreas Heinz, Michael Bauer
Background: Treatment algorithms are are considered as key to improve outcomes by enhancing the quality of care. This is the first randomized controlled study to evalutate the clinical effect of algorithm-guided treatment in inpatients with major depressive disorder (MDD). Methods: Inpatients, aged 18-70 years with MDD from 10 German psychiatric departments were randomized to 5 different treatment arms (from 2000 to 2005), three of which were standardized stepwise drug treatment algorithms (ALGO)...
June 22, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28645092/examining-effectiveness-of-tailorable-computer-assisted-therapy-programmes-for-substance-misuse-programme-usage-and-clinical-outcomes-data-from-breaking-free-online
#18
Sarah Elison, Andrew Jones, Jonathan Ward, Glyn Davies, Stephanie Dugdale
RATIONALE: When evaluating complex, tailorable digital behavioural interventions, additional approaches may be required alongside established methodologies such as randomised controlled trials (RCTs). Research evaluating a computer-assisted therapy (CAT) programme for substance misuse, Breaking Free Online (BFO), is informed by Medical Research Council (MRC) guidance recommending examination of 'mechanisms of action' of individual intervention strategies, which is relevant when evaluating digital interventions with content that may evolve over time...
May 23, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28645067/using-a-detailed-inventory-of-a-large-wastewater-treatment-plant-to-estimate-the-relative-importance-of-construction-to-the-overall-environmental-impacts
#19
Serni Morera, Lluís Corominas, Miquel Rigola, Manel Poch, Joaquim Comas
The aim of this work is to quantify the relative contribution to the overall environmental impact of the construction phase compared to the operational phase for a large conventional activated sludge wastewater treatment plant (WWTP). To estimate these environmental impacts, a systematic procedure was designed to obtain the detailed Life Cycle Inventories (LCI) for civil works and equipment, taking as starting point the construction project budget and the list of equipment installed at the Girona WWTP, which are the most reliable information sources of materials and resources used during the construction phase...
June 2, 2017: Water Research
https://www.readbyqxmd.com/read/28644891/the-impact-of-changes-in-dietary-knowledge-on-adult-overweight-and-obesity-in-china
#20
Lin Zhou, Qiyan Zeng, Shaosheng Jin, Guangyan Cheng
Overweight and obesity are rapidly growing threats in China. Improvement in dietary knowledge can potentially prevent overweight and obesity, conditions which are receiving substantial attention from international organizations and governments. The purpose of this study was to investigate the impact of changes in dietary knowledge on adult overweight and obesity, using a balanced panel data consisting of 10,401 samples from the 2006, 2009, and 2011 iterations of the China Health and Nutrition Survey. Results indicate that overweight and obesity are becoming increasingly problematic in China, and the level of dietary knowledge among Chinese adults needs improvement...
2017: PloS One
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