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https://www.readbyqxmd.com/read/28646714/synthetic-cathinones-and-stereochemistry-s-enantiomer-of-mephedrone-reduces-anxiety-and-depressant-like-effects-in-cocaine-or-mdpv-abstinent-rats
#1
Helene L Philogene-Khalid, Callum Hicks, Allen B Reitz, Lee-Yuan Liu-Chen, Scott M Rawls
BACKGROUND AND PURPOSE: The neuropharmacological profile of the synthetic cathinone mephedrone (MEPH) is influenced by stereochemistry. Both MEPH enantiomers are monoamine transporter substrates, but R-MEPH is primarily responsible for rewarding effects of MEPH as it produces greater locomotor activation and intracranial self-stimulation than S-MEPH. S-MEPH is a 50-fold more potent 5-HT releaser than R-MEPH and does not place preference in rats. MEPH is also structurally similar to the cathinone derivative bupropion, an antidepressant and smoking cessation medication, suggesting MEPH has therapeutic and addictive properties...
June 13, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28634909/categorical-risk-perception-drives-variability-in-antibiotic-prescribing-in-the-emergency-department-a-mixed-methods-observational-study
#2
Eili Y Klein, Elena M Martinez, Larissa May, Mustapha Saheed, Valerie Reyna, David A Broniatowski
BACKGROUND: Adherence to evidence-based antibiotic therapy guidelines for treatment of upper respiratory tract infections (URIs) varies widely among clinicians. Understanding this variability is key for reducing inappropriate prescribing. OBJECTIVE: To measure how emergency department (ED) clinicians' perceptions of antibiotic prescribing risks affect their decision-making. DESIGN: Clinician survey based on fuzzy-trace theory, a theory of medical decision-making, combined with retrospective data on prescribing outcomes for URI/pneumonia visits in two EDs...
June 20, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28634770/medical-negligence-determinations-the-right-to-try-and-expanded-access-to-innovative-treatments
#3
Denise Meyerson
This article considers the issue of expanded access to innovative treatments in the context of recent legislative initiatives in the United Kingdom and the United States. In the United Kingdom, the supporters of legislative change argued that the common law principles governing medical negligence are a barrier to innovation. In an attempt to remove this perceived impediment, two bills proposed that innovating doctors sued for negligence should be able to rely in their defence on the fact that their decision to innovate was "responsible...
June 20, 2017: Journal of Bioethical Inquiry
https://www.readbyqxmd.com/read/28618832/broadband-focusing-of-underwater-sound-using-a-transparent-pentamode-lens
#4
Xiaoshi Su, Andrew N Norris, Colby W Cushing, Michael R Haberman, Preston S Wilson
An inhomogeneous acoustic metamaterial lens based on spatial variation of refractive index for broadband focusing of underwater sound is reported. The index gradient follows a modified hyperbolic secant profile designed to reduce aberration and suppress side lobes. The gradient index (GRIN) lens is comprised of transversely isotropic hexagonal microstructures with tunable quasi-static bulk modulus and mass density. In addition, the unit cells are impedance-matched to water and have in-plane shear modulus negligible compared to the effective bulk modulus...
June 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28610696/use-of-ptw-microdiamond-for-relative-dosimetry-of-unflattened-photon-beams
#5
Giacomo Reggiori, Antonella Stravato, Maria Pimpinella, Francesca Lobefalo, Vanessa De Coste, Antonella Fogliata, Pietro Mancosu, Fiorenza De Rose, Valentina Palumbo, Marta Scorsetti, Stefano Tomatis
PURPOSE: The increasing interest in SBRT treatments encourages the use of flattening filter free (FFF) beams. Aim of this work was to evaluate the performance of the PTW60019 microDiamond detector under 6MV and 10MVFFF beams delivered with the EDGE accelerator (Varian Medical System, Palo Alto, USA). A flattened 6MV beam was also considered for comparison. METHODS: Short term stability, dose linearity and dose rate dependence were evaluated. Dose per pulse dependence was investigated in the range 0...
June 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28607755/access-and-barriers-to-ms-care-in-latin-america
#6
REVIEW
Víctor M Rivera, Miguel Angel Macias
Multiple sclerosis (MS), an epidemiologically emergent disorder in Latin America (LATAM), poses substantial socioeconomic challenges to a region where most countries remain as economies in development. MS is not health priority despite its economic and communitarian impact with a relatively low prevalence. MS treatments in LATAM have evolved from earlier long-term oral steroids and immunosuppression protocols, to platform disease modifying therapies (DMTs), to the current landscape with more advanced therapeutic molecules...
January 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/28601118/determination-of-red-blood-cells-in-urinary-sediment-do-ph-and-specific-gravity-of-urine-matter
#7
Nuša Avguštin, Alexander Jerman, Žiga Rotar, Špela Borštnar, Andrej Škoberne, Jelka Lindič
INTRODUCTION: It has been postulated that erythrocyte cell lysis in urine is common in the case of low urine specific gravity and high urine pH. We aimed to verify the influence of urine dipstick pH and specific gravity on erythrocyturia in the urine sediment in the case of positive dipstick hemoglobinuria. METHODS: We retrospectively collected data on dipstick specific gravity, pH, and urine sediment analysis done by nephrologists in the clinical and research urine laboratory at the Department of Nephrology, University Medical Center Ljubljana...
June 9, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28593789/prevalence-and-outcome-of-patients-with-cancer-and-acute-coronary-syndrome-undergoing-percutaneous-coronary-intervention-a-bleemacs-substudy
#8
Mario Iannaccone, Fabrizio D'Ascenzo, Paolo Vadalà, Stephen B Wilton, Patrizia Noussan, Francesco Colombo, Sergio Raposeiras Roubín, Emad Abu Assi, José Ramón González-Juanatey, Jose Paulo Simao Henriques, Jorge Saucedo, Wouter J Kikkert, Iván Nuñez-Gil, Albert Ariza-Sole, Xian-Tao Song, Dimitrios Alexopoulos, Christoph Liebetrau, Tetsuma Kawaji, Claudio Moretti, Roberto Garbo, Zenon Huczek, Shao-Ping Nie, Toshiharu Fujii, Luis Cl Correia, Masa-Aki Kawashiri, José María García Acuña, Danielle Southern, Emilio Alfonso, Belén Terol, Alberto Garay, Dongfeng Zhang, Yalei Chen, Ioanna Xanthopoulou, Neriman Osman, Helge Möllmann, Hiroki Shiomi, Francesca Giordana, Michal Kowara, Krzysztof Filipiak, Xiao Wang, Yan Yan, Jing-Yao Fan, Yuji Ikari, Takuya Nakahashi, Kenji Sakata, Fiorenzo Gaita, Masakazu Yamagishi, Oliver Kalpak, Sasko Kedev
BACKGROUND: The prevalence and outcome of patients with cancer that experience acute coronary syndrome (ACS) have to be determined. METHODS AND RESULTS: The BleeMACS project is a multicentre observational registry enrolling patients with acute coronary syndrome undergoing percutaneous coronary intervention worldwide in 15 hospitals. The primary endpoint was a composite event of death and re-infarction after one year of follow-up. Bleedings were the secondary endpoint...
June 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28584209/analysis-of-closed-claims-in-the-clinical-management-of-rheumatoid-arthritis-in-japan
#9
Yasuhiro Otaki, Makiko DaSilva Ishida, Yuichi Saito, Yasuaki Oyama, Giichiro Oiso, Mitsuru Moriyama
BACKGROUND: Despite an increasing awareness of the risk of medical errors, few data sources are available to highlight the characteristics and patterns of medical errors in the clinical management of rheumatoid arthritis (RA). The present study aimed to evaluate medical malpractice claims associated with the management of RA and other autoimmune connective tissue diseases (ACTDs). METHODS: We analyzed 38 ACTD-associated closed claims extracted from a total of 8530 claims processed between July 2004 and June 2014 by the Tokyo headquarters office of Sompo Japan Nipponkoa Incorporated, a leading malpractice insurer in Japan...
June 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28579914/hydrogen-generation-by-reaction-of-si-nanopowder-with-neutral-water
#10
Yuki Kobayashi, Shinsuke Matsuda, Kentaro Imamura, Hikaru Kobayashi
Si and its oxide are nonpoisonous materials, and thus, it can be taken for medical effects. We have developed a method of generation of hydrogen by use of reactions of Si nanopowder with water in the neutral pH region. Si nanopowder is fabricated by the simple bead milling method. Si nanopowder reacts with water to generate hydrogen even in cases where pH is set at the neutral region between 7.0 and 8.6. The hydrogen generation rate strongly depends on pH and in the case of pH 8.0, ∼55 ml/g hydrogen which corresponds to that contained in approximately 3 L saturated hydrogen-rich water is generated in 1 h...
2017: Journal of Nanoparticle Research: An Interdisciplinary Forum for Nanoscale Science and Technology
https://www.readbyqxmd.com/read/28574367/efficient-sample-delay-calculation-for-2-d-and-3-d-ultrasound-imaging
#11
Aya Ibrahim, Pascal A Hager, Andrea Bartolini, Federico Angiolini, Marcel Arditi, Jean-Philippe Thiran, Luca Benini, Giovanni De Micheli
Ultrasound imaging is a reference medical diagnostic technique, thanks to its blend of versatility, effectiveness, and moderate cost. The core computation of all ultrasound imaging methods is based on simple formulae, except for those required to calculate acoustic propagation delays with high precision and throughput. Unfortunately, advanced three-dimensional (3-D) systems require the calculation or storage of billions of such delay values per frame, which is a challenge. In 2-D systems, this requirement can be four orders of magnitude lower, but efficient computation is still crucial in view of low-power implementations that can be battery-operated, enabling usage in numerous additional scenarios...
May 25, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28572883/impact-of-creatinine-methodology-on-glomerular-filtration-rate-estimation-in-diabetes
#12
Marijana Vučić Lovrenčić, Vanja Radišić Biljak, Kristina Blaslov, Sandra Božičević, Lea Smirčić Duvnjak
AIM: To evaluate the influence of creatinine methodology on the performance of chronic kidney disease (CKD)-Epidemiology Collaboration Group-calculated estimated glomerular filtration rate (CKD-EPI-eGFR) for CKD diagnosis/staging in a large cohort of diabetic patients. METHODS: Fasting blood samples were taken from diabetic patients attending our clinic for their regular annual examination, including laboratory measurement of serum creatinine and eGFR. RESULTS: Our results indicated an overall excellent agreement in CKD staging (kappa = 0...
May 15, 2017: World Journal of Diabetes
https://www.readbyqxmd.com/read/28568312/autoimmune-comorbidity-in-achalasia-patients
#13
Fernanda Romero-Hernández, Janette Furuzawa-Carballeda, Gabriela Hernández-Molina, Edgar Alejandro-Medrano, Carlos A Núñez-Álvarez, Diego F Hernández-Ramírez, Daniel Azamar-Llamas, Elizabeth Olivares-Martínez, Blanca Breña, Axel Palacios, Miguel A Valdovinos, Enrique Coss-Adame, Bárbara Ramos-Ávalos, Samuel Torres-Landa, Axel A Hernández-Ávila, Athenea Flores-Nájera, Gonzalo Torres-Villalobos
BACKGROUND: Idiopathic achalasia is a rare esophageal motor disorder. The disease state manifests local and systemic inflammation, and it appears that an autoimmune component and specific autoantibodies participate in the pathogenesis. AIM: To determine the prevalence of autoimmune and chronic inflammatory diseases in patients with achalasia and compare the results with those from patients with gastroesophageal reflux disease (GERD). METHODS: It was a cross-sectional and included 114 patients with idiopathic achalasia and 114 age-and sex-matched control patients with GERD...
May 31, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28555551/-economic-crisis-and-portuguese-national-health-service-physicians-findings-from-a-descriptive-study-of-their-perceptions-and-reactions-from-health-care-units-in-the-greater-lisbon-area
#14
Inês Rego, Giuliano Russo, Luzia Gonçalves, Julian Perelman, Pedro Pita Barros
INTRODUCTION: In Europe, scant scientific evidence exists on the impact of economic crisis on physicians. This study aims at understanding the adjustments made by public sector physicians to the changing conditions, and their perceptions on the market for medical services in the Lisbon metropolitan area. MATERIAL AND METHODS: A random sample of 484 physicians from São José Hospital and health center groups in Cascais and Amadora, to explore their perceptions of the economic crisis, and the changes brought to their workload...
April 28, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28554947/disparities-in-infant-hospitalizations-in-indigenous-and-non-indigenous-populations-in-quebec-canada
#15
Hua He, Lin Xiao, Jill Elaine Torrie, Nathalie Auger, Nancy Gros-Louis McHugh, Hamado Zoungrana, Zhong-Cheng Luo
BACKGROUND: Infant mortality is higher in Indigenous than non-Indigenous populations, but comparable data on infant morbidity are lacking in Canada. We evaluated disparities in infant morbidities experienced by Indigenous populations in Canada. METHODS: We used linked population-based birth and health administrative data from Quebec, Canada, to compare hospitalization rates, an indicator of severe morbidity, in First Nations, Inuit and non-Indigenous singleton infants (< 1 year) born between 1996 and 2010...
May 29, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28553686/legal-hurdles-for-gastroenterologists-in-india
#16
REVIEW
Neeraj Nagpal
Litigation and compensation claims have started occurring with increasing frequency against gastroenterologists in India. A study of few such cases decided by Indian Courts shows that commonest reason for allegations of negligence being upheld by Indian Courts is an improper consent being taken. Professional organisations need to focus on these issues more aggressively than has been done in the past. Judgments which do not appear to be in conformity with standard medical practices need to be challenged in higher courts, failing in which they would become precedents for future similar judgments...
May 29, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/28552444/lawsuits-after-primary-and-revision-total-hip-arthroplasties-a-malpractice-claims-analysis
#17
Diana C Patterson, Ronald P Grelsamer, Michael J Bronson, Calin S Moucha
BACKGROUND: As the prevalence of total hip arthroplasty (THA) expands, so too will complications and patient dissatisfaction. The goal of this study was to identify the common etiologies of malpractice suits and costs of claims after primary and revision THAs. METHODS: Analysis of 115 malpractice claims filed for alleged neglectful primary and revision THA surgeries by orthopedic surgeons insured by a large New York state malpractice carrier between 1983 and 2011...
May 3, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28550921/dissecting-malpractice-in-pancreaticoduodenectomy-cases
#18
Seema P Anandalwar, Anthony J Scholer, Gigio Ninan, Joseph B Oliver, Derick Christian, Jean Anderson Eloy, Ravi J Chokshi
BACKGROUND: Medical malpractice is a growing concern for physicians in all fields. Surgical fields have some of the highest malpractice premiums and litigation rates. Pancreaticoduodenectomy (PD) has become a popular procedure; however, it is still associated with significant morbidity and mortality. This study is the first to analyze factors involved in litigation regarding PD cases. METHODS: The Westlaw database was searched for jury verdicts and settlements using the terms "medical malpractice" and "pancreaticoduodenectomy"...
May 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28532731/evaluation-procedures-in-health-perspective-of-nursing-care-in-patient-safety
#19
Theo Duarte da Costa, Viviane Euzébia Pereira Santos, Marcos Antônio Ferreira Junior, Alynne Fortes Vitor, Pétala Tuani Candido de Oliveira Salvador, Kisna Yasmin Andrade Alves
OBJECTIVE: The objective research is analyzing the nursing care in intensive care units from the perspective of patient safety based on health evaluation. METHODS: This is an evaluation research, for the purpose of issuance of judgment or judgment on a given system, carried out in six intensive care units. Data collection occurred from April to July 2014, in locu, with a validated instrument containing 97 questions related to patient safety. These, 73 items targeted to analyze the element "process" in safety patient nursing care...
June 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28530339/-health-scares-a-chronicle-unnecessary-anxiety
#20
REVIEW
Iftach Sagy, Dan Greenberg, Alan Jotkowitz, Leonid Barski, Victor Novack
A health scare is an event characterized by fear of catastrophic consequences with little actual results. Regardless of these negligible results, the health, social and economic impacts of such events may be significant. Health scares are spread throughout four major groups: the media, relevant medical experts, policy makers and the public at large. In this review, we described two recent cases in Israel: the case of Eltroxin exchange that occurred in Israel as well as other countries, in addition to the polio virus spread in sewage, in the context of health scares...
December 2016: Harefuah
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