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Morad Chughtai, John J Kelly, Jared M Newman, Assem A Sultan, Anton Khlopas, Nipun Sodhi, Anil Bhave, Michael C Kolczun, Michael A Mont
This study evaluated the use of telerehabilitation during the postoperative period for patients who underwent total knee arthroplasty (TKA) or unicompartmental knee arthroplasty (UKA). Specifically, this study evaluated the following: (1) patient compliance and adherence to the program, (2) time spent performing physical therapy exercises, (3) the usability of the virtual rehabilitation platform, and (4) clinical outcome scores in a selected primary knee arthroplasty cohort. A total of 157 consecutive patients underwent TKA ( n  = 18) or UKA ( n  = 139)...
March 16, 2018: Journal of Knee Surgery
Huanhuan Hu, Naoko Sasaki, Takayuki Ogasawara, Satsue Nagahama, Shamima Akter, Keisuke Kuwahara, Takeshi Kochi, Masafumi Eguchi, Ikuko Kashino, Taizo Murakami, Makiko Shimizu, Akihiko Uehara, Makoto Yamamoto, Tohru Nakagawa, Toru Honda, Shuichiro Yamamoto, Ai Hori, Chihiro Nishiura, Hiroko Okazaki, Teppei Imai, Akiko Nishihara, Toshiaki Miyamoto, Kentaro Tomita, Isamu Kabe, Tetsuya Mizoue, Naoki Kunugita, Seitaro Dohi
Introduction: We aimed to determine the prospective association of smoking status, smoking intensity, and smoking cessation with the risk of hearing loss in a large Japanese cohort. Methods: The cohort study included 50195 employees, who were aged 20-64 years and free of hearing loss at baseline. Participants were followed up for a maximum of 8 years. Pure-tone audiometric testing was performed annually to identify hearing loss at 1 and 4 kHz. Cox proportional hazards regression models were used to investigate the association between smoking and hearing loss...
March 14, 2018: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
Ivan Yu Chernyshov, Philip V Toukach
Motivation: Glycans and glycoconjugates are usually recorded in dedicated databases in residue-based notations. Only a few of them can be converted into chemical (atom-based) formats highly demanded in conformational and biochemical studies. In this work, we present a tool for translation from a residue-based glycan notation to SMILES. Results: The REStLESS algorithm for translation from the CSDB Linear notation to SMILES was developed. REStLESS stands for ResiduEs as Smiles and LinkagEs as SmartS, where SMARTS reaction expressions are used to merge pre-encoded residues into a molecule...
March 14, 2018: Bioinformatics
Ya Chen, Yong Tang, Beibei Mao, Wenchao Li, Hongwei Jin, Liangren Zhang, Zhenming Liu
Any type of breast cancer not expressing genes of the estrogen receptor (ER), progesterone receptor (PR), or human epidermal growth factor receptor 2 (HER2) is referred to as triple-negative breast cancer (TNBC). Accordingly, TNBCs do not respond to hormonal therapies or medicines targeting the ER, PR, or HER2. Systemic chemotherapy is therefore the only treatment option available today and prognoses remain poor. We report the discovery and characterization of N-(naphtho[1,2-b]furan-5-yl)benzenesulfonamides as selective inhibitors of TNBCs...
March 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Shilpa B Gaikwad, Eric G Johnson, Todd C Nelson, Oluwaseun I Ambode, Abdulaziz A Albalwi, Ahmad A Alharbi, Noha S Daher
BACKGROUND AND PURPOSE: Motion sensitivity is a common condition among the general population and may be accompanied by postural instability and anxiety. Preliminary studies suggest that minimal dosage of gaze stability exercises improves postural stability in young adults with chronic motion sensitivity. The aim of this study was to investigate the effect of progressive gaze stability exercises on postural stability, motion sensitivity, and anxiety in healthy young adults with chronic motion sensitivity...
April 2018: Journal of Neurologic Physical Therapy: JNPT
Lucia Romero, Jordi Cano, Julio Gomis-Tena, Beatriz Trenor, Ferran Sanz, Manuel Pastor, Javier Saiz
Drug-induced proarrhythmicity is a major concern for regulators and pharmaceutical companies. For novel drug candidates, the standard assessment involves the evaluation of the potassium hERG channels block and the in vivo prolongation of the QT interval. However, this method is known to be too restrictive and to stop the development of potentially valuable therapeutic drugs. The aim of this work is to create an in silico tool for early detection of drug-induced proarrhythmic risk. The system is based on simulations of how different compounds affect the action potential duration (APD) of isolated endocardial, midmyocardial, and epicardial cells as well as the QT prolongation in a virtual tissue...
March 16, 2018: Journal of Chemical Information and Modeling
Bhavik N Patel, Alfredo Farjat, Christoph Schabel, Petar Duvnjak, Achille Mileto, Juan Carlos Ramirez-Giraldo, Daniele Marin
OBJECTIVE: The purpose of this study was to determine in vitro and in vivo the optimal threshold for renal lesion vascularity at low-energy (40-60 keV) virtual monoenergetic imaging. MATERIALS AND METHODS: A rod simulating unenhanced renal parenchymal attenuation (35 HU) was fitted with a syringe containing water. Three iodinated solutions (0.38, 0.57, and 0.76 mg I/mL) were inserted into another rod that simulated enhanced renal parenchyma (180 HU). Rods were inserted into cylindric phantoms of three different body sizes and scanned with single- and dual-energy MDCT...
March 16, 2018: AJR. American Journal of Roentgenology
Dong Dong, Lawrence K F Wong, Zhiwei Luo
By using slide-based task in a laboratory setting, previous studies have found that activation of the rostral prefrontal cortex (BA10) is related to prospective memory performance. In this present study, we used immersive virtual reality (VR) technology to measure PM performance in a real-life task in a simulated virtual environment. Functional near-infrared spectroscopy was used simultaneously to record the rostral prefrontal cortex activities of the subjects. By comparing the data against the ones from the slide-based task, the result suggested that the activation of BA10 in the VR tasks were greater than the one in the slide-based tasks, and the VR tasks have the potential to identify the particular location of BA10 that is connected to the PM performance in our daily lives...
March 16, 2018: Applied Neuropsychology. Adult
Paula Nahuelhual, Carolina Giaconi, M Alejandra Machuca
INTRODUCTION: According to the International Classification of Functioning, Disability and Health (ICF), participation is defined as "the involvement of the subject in situations of life" and is fun damental in the development of children and adolescents. In case of children with disabilities, participation allows a better understanding of the possible impact of deficiencies in daily life. OBJECTIVE: To evaluate measurement scales of participation in children and adolescents with and without disabilities...
December 2017: Revista Chilena de Pediatría
Inbal Maidan, Freek Nieuwhof, Hagar Bernad-Elazari, Bastiaan R Bloem, Nir Giladi, Jeffrey M Hausdorff, Jurgen A H R Claassen, Anat Mirelman
BACKGROUND: In a randomized control trial conducted in patients with Parkinson's disease, a treadmill training program combined with virtual reality that targeted motor and cognitive aspects of safe ambulation led to fewer falls, compared with treadmill training alone. OBJECTIVE: To investigate if the 2 types of training differentially affected prefrontal activation and if this might explain differences in fall rates after the intervention. METHODS: Sixty-four patients with Parkinson's disease were randomized into the treadmill training arm (n = 34, mean age 73...
March 1, 2018: Neurorehabilitation and Neural Repair
Kyle I Mentkowski, Jonathan D Snitzer, Sarah Rusnak, Jennifer K Lang
Extracellular vesicles (EVs) comprise a heterogeneous group of small membrane vesicles, including exosomes, which play a critical role in intracellular communication and regulation of numerous physiological processes in health and disease. Naturally released from virtually all cells, these vesicles contain an array of nucleic acids, lipids and proteins which they transfer to target cells within their local milieu and systemically. They have been proposed as a means of "cell-free, cell therapy" for cancer, immune disorders, and more recently cardiovascular disease...
March 15, 2018: AAPS Journal
P Stefan, M Pfandler, P Wucherer, S Habert, J Fürmetz, S Weidert, E Euler, U Eck, M Lazarovici, M Weigl, N Navab
Surgical simulators are being increasingly used as an attractive alternative to clinical training in addition to conventional animal models and human specimens. Typically, surgical simulation technology is designed for the purpose of teaching technical surgical skills (so-called task trainers). Simulator training in surgery is therefore in general limited to the individual training of the surgeon and disregards the participation of the rest of the surgical team. The objective of the project Assessment and Training of Medical Experts based on Objective Standards (ATMEOS) is to develop an immersive simulated operating room environment that enables the training and assessment of multidisciplinary surgical teams under various conditions...
March 15, 2018: Der Unfallchirurg
Natalia A Trayanova, Patrick M Boyle, Plamen P Nikolov
The goal of this article is to review advances in computational modeling of the heart, with a focus on recent non-invasive clinical imaging- and simulation-based strategies aimed at improving the diagnosis and treatment of patients with arrhythmias and structural heart disease. Following a brief overview of the field of computational cardiology, we present recent applications of the personalized virtual-heart approach in predicting the optimal targets for infarct-related ventricular tachycardia and atrial fibrillation ablation, and in determining risk of sudden cardiac death in myocardial infarction patients...
March 2018: Current Opinion in Biomedical Engineering
Jamal Shamsara
Rescoring is a simple approach that theoretically could improve the original docking results. In this study AutoDock Vina was used as a docked engine and three other scoring functions besides the original scoring function, Vina, as well as their combinations as consensus scoring functions were employed to explore the effect of rescoring on virtual screenings that had been done on diverse targets. Rescoring by DrugScore produces the most number of cases with significant changes in screening power. Thus, the DrugScore results were used to build a simple model based on two binding site descriptors that could predict possible improvement by DrugScore rescoring...
2018: International Journal of Medicinal Chemistry
Peter Khooshabeh, Gale Lucas
The cyber domain of military operations presents many challenges. A unique element is the social dynamic between cyber operators and their leadership because of the novel subject matter expertise involved in conducting technical cyber tasks, so there will be situations where senior leaders might have much less domain knowledge or no experience at all relative to the warfighters who report to them. Nonetheless, it will be important for junior cyber operators to convey convincing information relevant to a mission in order to persuade or influence a leader to make informed decisions...
2018: Frontiers in Psychology
Florian Ferreri, Alexis Bourla, Stephane Mouchabac, Laurent Karila
Background: New technologies can profoundly change the way we understand psychiatric pathologies and addictive disorders. New concepts are emerging with the development of more accurate means of collecting live data, computerized questionnaires, and the use of passive data. Digital phenotyping , a paradigmatic example, refers to the use of computerized measurement tools to capture the characteristics of different psychiatric disorders. Similarly, machine learning-a form of artificial intelligence-can improve the classification of patients based on patterns that clinicians have not always considered in the past...
2018: Frontiers in Psychiatry
Qianqian Wang, Jiahui Xu, Ying Li, Jumin Huang, Zebo Jiang, Yuwei Wang, Liang Liu, Elaine Lai Han Leung, Xiaojun Yao
Protein arginine methyltransferase 5 (PRMT5) is able to regulate gene transcription by catalyzing the symmetrical dimethylation of arginine residue of histone, which plays a key role in tumorigenesis. Many efforts have been taken in discovering small-molecular inhibitors against PRMT5, but very few were reported and most of them were SAM-competitive. EPZ015666 is a recently reported PRMT5 inhibitor with a new binding site, which is different from S-adenosylmethionine (SAM)-binding pocket. This new binding site provides a new clue for the design and discovery of potent and specific PRMT5 inhibitors...
2018: Frontiers in Pharmacology
Rupesh K Chikara, Erik C Chang, Yi-Chen Lu, Dar-Shong Lin, Chin-Teng Lin, Li-Wei Ko
A reward or punishment can modulate motivation and emotions, which in turn affect cognitive processing. The present simultaneous functional magnetic resonance imaging-electroencephalography study examines neural mechanisms of response inhibition under the influence of a monetary reward or punishment by implementing a modified stop-signal task in a virtual battlefield scenario. The participants were instructed to play as snipers who open fire at a terrorist target but withhold shooting in the presence of a hostage...
2018: Frontiers in Human Neuroscience
Fleur M Ferguson, Nathanael S Gray
Receptor tyrosine kinase signalling pathways have been successfully targeted to inhibit proliferation and angiogenesis for cancer therapy. However, kinase deregulation has been firmly demonstrated to play an essential role in virtually all major disease areas. Kinase inhibitor drug discovery programmes have recently broadened their focus to include an expanded range of kinase targets and therapeutic areas. In this Review, we provide an overview of the novel targets, biological processes and disease areas that kinase-targeting small molecules are being developed against, highlight the associated challenges and assess the strategies and technologies that are enabling efficient generation of highly optimized kinase inhibitors...
March 16, 2018: Nature Reviews. Drug Discovery
Che-Wei Lin, Elizabeth H Chang, Daniel L Clinciu, Yun-Ting Peng, Wen-Chen Huang, Chien-Chih Wu, Jen-Chieh Wu, Yu-Chuan Li
BACKGROUND AND OBJECTIVE: Objective Structured Clinical Examination (OSCE) has been used in many areas of healthcare training over the years. However, it constantly needs to be upgraded and enhanced due to technological and teaching changes. We aim at implementing an integrative OSCE method which employs informatics via the virtual patient within the pharmacy education curriculum at Taipei Medical University to enhance the pharmacy students' competence for using and disseminating information and to also improve critical thinking and clinical reasoning...
May 2018: Computer Methods and Programs in Biomedicine
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