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Alex Saywell, Anne Bakker, Johannes Mielke, Takashi Kumagai, Martin Wolf, Victor García-López, Pinn-Tsong Chiang, James M Tour, Leonhard Grill
Molecular machines are a key component in the vision of molecular nanotechnology, and have the potential to transport molecular species and cargo on surfaces. The motion of such machines should be triggered remotely, ultimately allowing a large number of molecules to be propelled by a single source, with light being an attractive stimulus. Here, we report upon the photo-induced translation of molecular machines across a surface by characterizing single molecules before and after illumination. Illumination of molecules containing a motor unit results in an enhancement in the diffusion of the molecules...
October 26, 2016: ACS Nano
Stacy A Drake, Sherhonda Harper, Dwayne A Wolf
The role of medicolegal death investigation (MLDI) systems in the assessment of violent deaths (e.g., gunshots, stab wounds, car crashes) is well known. However, the role of MLDI systems in informing healthcare agencies about potential patient safety and quality improvement activities is less understood and thus the main focus of this article. In this article we describes-one agency's initiatives to identify decedents whose circumstances or cause of death had potential relevance for patient safety and quality outcomes and to communicate those findings to acute care hospitals where the decedents were previously treated...
October 25, 2016: Journal of Forensic Nursing
Alexander Pfeil, Laura Krojniak, Diane M Renz, Lisa Reinhardt, Marcus Franz, Peter Oelzner, Gunter Wolf, Joachim Böttcher
BACKGROUND: BoneXpert (BX) is a newly developed medical device based on digital X-ray radiogrammetry to measure human cortical bone thickness. The aim of this study was to quantify cortical bone loss of the metacarpals in patients with psoriatic arthritis (PsA) and compare these findings with other radiological scoring methods. METHODS: The study includes 104 patients with verified PsA. The BX method was used to measure the Metacarpal Index (MCI) at the metacarpal bones (II-IV)...
October 25, 2016: Arthritis Research & Therapy
Kathrin Pallauf, Gerald Rimbacha, Petra Maria Ruppa, Dawn China, Insa Wolf
BACKGROUND: Resveratrol may possess life-prolonging and health-benefitting properties, some of which may resemble the effect of caloric restriction (CR). CR appears to prolong the lifespan of model organisms in some studies and may benefit human health. However, for humans, restricting food intake for an extended period of time seems impracticable and substances imitating the beneficial effects of CR without having to reduce food intake could improve health in an aging and overweight population...
October 24, 2016: Current Medicinal Chemistry
Alan Boobis, Samuel Cohen, Vicki Dellarco, John E Doe, Penelope A Fenner-Crisp, Angelo Moretto, Timothy P Pastoor, Rita Schoeny, Jennifer Seed, Douglas C Wolf
Classification schemes for carcinogenicity based solely on hazard-identification such as the IARC monograph process and the UN system adopted in the EU have become outmoded. They are based on a concept developed in the 1970s that chemicals could be divided into two classes: carcinogens and non-carcinogens. Categorization in this way places into the same category chemicals and agents with widely differing potencies and modes of action. This is how eating processed meat can fall into the same category as sulfur mustard gas...
October 22, 2016: Regulatory Toxicology and Pharmacology: RTP
Robert Westermann, Chris A Anthony, Kyle R Duchman, Yubo Gao, Andrew J Pugely, Carolyn M Hettrich, Ned Amendola, Brian R Wolf
Infection following anterior cruciate ligament reconstruction (ACLR) is rare. Previous authors have concluded that diabetes, tobacco use, and previous knee surgery may influence infection rates following ACLR. The purpose of this study was to identify a cohort of patients undergoing ACLR and define (1) the incidence of infection after ACLR from a large multicenter database and (2) the risk factors for infection after ACLR. We identified patients undergoing elective ACLRs in the American College of Surgeons National Surgical Quality Improvement Program database between 2007 and 2013...
October 25, 2016: Journal of Knee Surgery
Marek Krawczyk, Michał Grąt, Rene Adam, Wojciech G Polak, Jurgen Klempnauer, Antonio Pinna, Fabrizio Di Benedetto, Franco Filipponi, Norbert Senninger, Aksel Foss, Sebastian Rufián-Peña, William Bennet, Johann Pratschke, Andreas Paul, Utz Settmacher, Giorgio Rossi, Mauro Salizzoni, Carlos Fernandez-Selles, Santiago T Martínez de Rituerto, Miguel A Gómez-Bravo, Jacques Pirenne, Olivier Detry, Pietro E Majno, Petr Nemec, Wolf O Bechstein, Michael Bartels, Silvio Nadalin, Francois R Pruvot, Darius F Mirza, Luigi Lupo, Michele Colledan, Giuseppe Tisone, Jan Ringers, Jorge Daniel, Ramón Charco Torra, Enrique Moreno González, Rafael Bañares Cañizares, Valentin Cuervas-Mons Martinez, Fernando San Juan Rodríguez, Sezai Yilmaz, Piotr Remiszewski
BACKGROUND: Liver transplantation is the most extreme form of surgical management of patients with hepatic trauma, with very limited literature data supporting its use. The aim of this study was to assess the results of liver transplantation for hepatic trauma. METHODS: This retrospective analysis based on European Liver Transplant Registry comprised data of 73 recipients of liver transplantation for hepatic trauma performed in 37 centers in the period between 1987 and 2013...
November 2016: Transplantation
Jayanth Sridhar, Yoshihiro Yonekawa, Ajay E Kuriyan, Anthony Joseph, Benjamin J Thomas, Michelle C Liang, Nadim Rayess, Nidhi Relhan, Jeremy D Wolfe, Chirag P Shah, Andre J Witkin, Harry W Flynn, Sunir J Garg
PURPOSE: To report the clinical presentation, microbiologic spectrum, and visual outcomes associated with acute-onset infectious endophthalmitis undergoing therapeutic pars plana vitrectomy. METHODS: Multicenter interventional retrospective noncomparative consecutive case series. Billing records were reviewed to identify all charts for patients undergoing pars plana vitrectomy within 14 days of diagnosis of acute-onset infectious endophthalmitis over a 4-year period at 5 large tertiary referral retina practices...
October 21, 2016: Retina
Jaroslav Meluzin, Zdenek Starek, Tomas Kulik, Jiri Jez, Frantisek Lehar, Josef Tomandl, Ladislav Dusek, Jiri Wolf, Pavel Leinveber, Miroslav Novak
BACKGROUND: Noninvasive diagnosis of exercise-induced elevation of left ventricular filling pressure is difficult and remains unsatisfactory. The aim of this study was to assess the accuracy of the ratio of early diastolic transmitral (E) to mitral annular (e') velocity and to determine new parameters or parameter combinations with the ability to predict exercise-induced left atrial pressure (LAP) elevation. METHODS AND RESULTS: Eighty patients with paroxysmal atrial fibrillation (AF) referred for catheter AF ablation underwent simultaneous exercise echocardiography and direct invasive LAP measurements, as well as a resting and postexercise biomarker analysis...
October 25, 2016: Echocardiography
W Asher Wolf, Nicholas A Piazza, Jessica H Gebhart, Spencer Rusin, Shannon Covey, Leana L Higgins, RoseMary Beitia, Olga Speck, Kimberly Woodward, Cary C Cotton, Thomas M Runge, Swathi Eluri, John T Woosley, Nicholas J Shaheen, Evan S Dellon
BACKGROUND: Because eosinophilic esophagitis (EoE) causes dysphagia, esophageal narrowing, and strictures, it could result in low body mass index (BMI), but there are few data assessing this. AIM: To determine whether EoE is associated with decreased BMI. METHODS: We conducted a prospective study at the University of North Carolina from 2009 to 2013 enrolling consecutive adults undergoing outpatient EGD. BMI and endoscopic findings were recorded...
October 24, 2016: Digestive Diseases and Sciences
Heather N Jacobs, Sona Rathod, Matthew Wolf, Jennifer H Elisseeff
Micronized porcine urinary bladder matrix (UBM) is an extracellular matrix biomaterial that has immunomodulatory and pro-regenerative properties. The objective of this study was to assess the ability of UBM to alter disease progression in a mouse model of post-traumatic osteoarthritis (OA). Ten-week-old wild-type C57BL/6 male mice underwent anterior cruciate ligament transection (ACLT) to induce OA. Two weeks after ACLT, UBM (50 mg/mL) or saline was injected into the mouse joint. At 4 and 8 weeks post-ACLT, cartilage integrity was assessed using OARSI scoring of histology, pain was evaluated, and joints were harvested for quantitative RT-PCR analysis of cartilage-specific and inflammatory gene expression...
October 24, 2016: AAPS Journal
Schneider K Rancy, Samir K Trehan, Angela E Li, Steve K Lee, Hollis G Potter, Scott W Wolfe
Background Previous authors have reported pisotriquetral pain and subsequent pisiform excision following partial or total wrist fusion in patients with scapholunate advanced collapse (SLAC). Prior studies have not considered the potential role of SLAC biomechanics on pisotriquetral osteoarthritis (PT OA) development preoperatively. Purpose To determine the prevalence and severity of PT OA in patients with SLAC as compared with a control population. Patients and Methods Magnetic resonance imaging (MRI) studies of 24 patients with SLAC wrist and 24 sex- and age-matched control patients were analyzed...
November 2016: Journal of Wrist Surgery
Travis K Price, Arya Mehrtash, Laurynas Kalesinskas, Kema Malki, Evann E Hilt, Catherine Putonti, Alan J Wolfe
The genus Escherichia includes pathogens and commensals. Bladder infections (cystitis) result most often from colonization of the bladder by uropathogenic E. coli strains. In contrast, a poorly defined condition called asymptomatic bacteriuria results from colonization of the bladder with E. coli strains without symptoms. As part of an on-going attempt to identify and characterize the newly discovered female urinary microbiota, we report the genome sequences and annotation of two urinary isolates of E. coli: one (E78) was isolated from a female patient who self-reported cystitis; the other (E75) was isolated from a female patient who reported that she did not have symptoms of cystitis...
2016: Standards in Genomic Sciences
Stacy Cooper Bailey, Michael K Paasche-Orlow, William G Adams, Samantha A Brokenshire, Ryan P Hickson, Christine U Oramasionwu, Laura M Curtis, Mary J Kwasny, Michael S Wolf
BACKGROUND: Adverse drug events (ADEs) affect millions of patients annually and place a significant burden on the healthcare system. The Food and Drug Administration (FDA) has developed patient safety information for high-risk medications that pose serious public health concerns. However, there are currently few assurances that patients receive this information or are able to identify or respond correctly to ADEs. OBJECTIVE: To compare the effectiveness of the Electronic Medication Complete Communication (EMC(2)) Strategy to promote safe medication use and reporting of ADEs in comparison to usual care...
October 21, 2016: Contemporary Clinical Trials
Erin L Rutherford, Laura Anne Lowery
Wolf-Hirschhorn syndrome (WHS) is a neurodevelopmental disorder characterized by mental retardation, craniofacial malformation, and defects in skeletal and heart development. The syndrome is associated with irregularities on the short arm of chromosome 4, including deletions of varying sizes and microduplications. Many of these genotypic aberrations in humans have been correlated with the classic WHS phenotype, and animal models have provided a context for mapping these genetic irregularities to specific phenotypes; however, there remains a significant knowledge gap concerning the cell biological mechanisms underlying these phenotypes...
October 21, 2016: Developmental Biology
Ruggero De Paulis, Salvatore D'Aleo, Alessandro Bellisario, Andrea Salica, Luca P Weltert, Raffaele Scaffa, Lorenzo Guerrieri Wolf, Daniele Maselli, Michele Di Mauro
BACKGROUND: Structural valve deterioration (SVD) is the Achilles' heel of bioprostheses. Its correlation with younger age is well known. In recent years we exclusively reserved use of small-size Mitroflow valve prostheses (LivaNova, London, United Kingdom) to an older patient population with small aortic annuli. This study aimed to assess the incidence of SVD and its effect on patient survival and need for reoperation. MATERIALS AND METHODS: Two hundred five patients (aged 75...
September 28, 2016: Journal of Thoracic and Cardiovascular Surgery
Salah-Eddin Al-Batran, Ralf D Hofheinz, Claudia Pauligk, Hans-Georg Kopp, Georg Martin Haag, Kim Barbara Luley, Johannes Meiler, Nils Homann, Sylvie Lorenzen, Harald Schmalenberg, Stephan Probst, Michael Koenigsmann, Matthias Egger, Nicole Prasnikar, Karel Caca, Jörg Trojan, Uwe M Martens, Andreas Block, Wolfgang Fischbach, Rolf Mahlberg, Michael Clemens, Gerald Illerhaus, Katja Zirlik, Dirk M Behringer, Wolff Schmiegel, Michael Pohl, Michael Heike, Ulrich Ronellenfitsch, Martin Schuler, Wolf O Bechstein, Alfred Königsrainer, Timo Gaiser, Peter Schirmacher, Wael Hozaeel, Alexander Reichart, Thorsten O Goetze, Mark Sievert, Elke Jäger, Stefan Mönig, Andrea Tannapfel
BACKGROUND: Docetaxel-based chemotherapy is effective in metastatic gastric and gastro-oesophageal junction adenocarcinoma, but has not yet been evaluated in the context of resectable patients. Here we report findings from the phase 2 part of the phase 2/3 FLOT4 trial, which compared histopathological regression in patients treated with a docetaxel-based triplet chemotherapy versus an anthracycline-based triplet chemotherapy before surgical resection. METHODS: In this randomised, open-label, phase 2/3 study, eligible participants were recruited from 28 German oncology centres...
October 21, 2016: Lancet Oncology
Anthony R Cai, Erica I Hodgman, Puneet B Kumar, Alvand J Sehat, Alexander L Eastman, Steven E Wolf
A significant proportion of patients appeared to arrive at our American Burn Association-verified burn center intubated without clear benefit. The current study aims to evaluate regional prehospital intubation practices and their outcomes. All consecutive admissions from November 2012 to June 2014 were reviewed for data points associated with intubation. Demographics and outcomes for patients who were intubated before arrival or within 24 hours of admission were compared using χ, Fisher's exact test, and the Kruskal-Wallis test as appropriate...
October 17, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
Peng Jiang, Yang Feng, Feng Wu
This study addresses the optimization of node redeployment coverage in underwater wireless sensor networks. Given that nodes could easily become invalid under a poor environment and the large scale of underwater wireless sensor networks, an underwater sensor network redeployment algorithm was developed based on wolf search. This study is to apply the wolf search algorithm combined with crowded degree control in the deployment of underwater wireless sensor networks. The proposed algorithm uses nodes to ensure coverage of the events, and it avoids the prematurity of the nodes...
October 21, 2016: Sensors
Stephanie K Tanamas, Evelyn Wong, Kathryn Backholer, Asnawi Abdullah, Rory Wolfe, Jan Barendregt, Anna Peeters
OBJECTIVE: To compare a simple measure - age of onset of obesity - to an obese-years construct (a product of duration and magnitude of obesity) as risk factors for type 2 diabetes. METHOD: Participants from the Framingham Heart Study who were not obese and did not have diabetes at baseline were included (n=4,320). The Akaike Information Criterion (AIC) was computed to compare four Cox proportional hazards models with incident diabetes as the outcome and: (i) obese-years; (ii) age of onset of obesity; (iii) body mass index (BMI); and (iv) age of onset of obesity plus magnitude of BMI combined, as exposures...
October 23, 2016: Australian and New Zealand Journal of Public Health
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