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DaShawn A Hickman, Christa L Pawlowski, Andrew Shevitz, Norman F Luc, Ann Kim, Aditya Girish, Joyann Marks, Simi Ganjoo, Stephanie Huang, Edward Niedoba, Ujjal D S Sekhon, Michael Sun, Mitchell Dyer, Matthew D Neal, Vikram S Kashyap, Anirban Sen Gupta
Traumatic non-compressible hemorrhage is a leading cause of civilian and military mortality and its treatment requires massive transfusion of blood components, especially platelets. However, in austere civilian and battlefield locations, access to platelets is highly challenging due to limited supply and portability, high risk of bacterial contamination and short shelf-life. To resolve this, we have developed an I.V.-administrable 'synthetic platelet' nanoconstruct (SynthoPlate), that can mimic and amplify body's natural hemostatic mechanisms specifically at the bleeding site while maintaining systemic safety...
February 15, 2018: Scientific Reports
Jonas Riest, Gerhard Nägele, Yun Liu, Norman J Wagner, P Douglas Godfrin
Recently, atypical static features of microstructural ordering in low-salinity lysozyme protein solutions have been extensively explored experimentally and explained theoretically based on a short-range attractive plus long-range repulsive (SALR) interaction potential. However, the protein dynamics and the relationship to the atypical SALR structure remain to be demonstrated. Here, the applicability of semi-analytic theoretical methods predicting diffusion properties and viscosity in isotropic particle suspensions to low-salinity lysozyme protein solutions is tested...
February 14, 2018: Journal of Chemical Physics
Jeremy R Manning, Xia Zhu, Theodore L Willke, Rajesh Ranganath, Kimberly Stachenfeld, Uri Hasson, David M Blei, Kenneth A Norman
Recent research shows that the covariance structure of functional magnetic resonance imaging (fMRI) data - commonly described as functional connectivity - can change as a function of the participant's cognitive state (for review see (Turk-Browne, 2013)). Here we present a Bayesian hierarchical matrix factorization model, termed hierarchical topographic factor analysis (HTFA), for efficiently discovering full-brain networks in large multi-subject neuroimaging datasets. HTFA approximates each subject's network by first re-representing each brain image in terms of the activities of a set of localized nodes, and then computing the covariance of the activity time series of these nodes...
February 12, 2018: NeuroImage
Jonathan R Skirko, Emily L Jensen, Norman R Friedman
OBJECTIVE: Evaluate peri-operative course and morbidity in children with Down syndrome (DS) who underwent a lingual tonsillectomy (LT) for residual obstructive sleep apnea (rOSA). METHODS: Retrospective case series for children with DS who underwent LT for rOSA from April 2011 to July 2016. Our primary outcomes were length of stay, readmission and complications. Surgical effectiveness was evaluated by change in the obstructive apnea-hypopnea-index(OAHI) and oxygen saturation nadir...
February 2018: International Journal of Pediatric Otorhinolaryngology
Nadia Minian, Aliya Noormohamed, Laurie Zawertailo, Dolly Baliunas, Norman Giesbrecht, Bernard Le Foll, Jürgen Rehm, Andriy Samokhvalov, Peter L Selby
Plain English summary: The purpose of this paper is to describe a patient engagement event designed to create an educational workbook with smokers who drink alcohol at harmful levels. The goal was to create a workbook that combined scientific evidence with patients' values, preferences, and needs. Fourteen adult smokers who drink alcohol were invited to the Centre for Addiction and Mental Health (CAMH) to take part in a four-hour event to help design the workbook with the CAMH research team...
2018: Research Involvement and Engagement
Agnieszka M Frydrych, Norman A Firth
We present a rare case of intraoral nerve sheath myxoma. Clinically, the neoplasm mimics many other oral mucosal pathosis, underscoring the importance of histopathology in ensuring accurate diagnosis of oral mucosal lesions. Reports of intraoral nerve sheath myxomas are essential to enhance our understanding of this rare intraoral entity.
February 2018: Clinical Case Reports
Norman Helm, Olaf Prieske, Thomas Muehlbauer, Tom Krüger, Urs Granacher
BACKGROUND: In judo, rapid force production during pulling movements is an important component of athletic performance, which is why this capacity needs to be specifically exercised in judo. This study aimed at examining the effects of a judo-specific resistance training program using a judo ergometer system (PTJ) versus a traditional resistance training regime using a partner (PTP) on kinetics and muscle activity of judo-specific pulling exercises. METHOD: Twenty-four male judo athletes (age: 22 ± 4 years, training experience: 15 ± 3 years) were randomly assigned to two groups...
February 14, 2018: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
Irene L Wapnir, Karen N Price, Stewart J Anderson, André Robidoux, Miguel Martín, Johan W R Nortier, Alexander H G Paterson, Mothaffar F Rimawi, István Láng, José Manuel Baena-Cañada, Beat Thürlimann, Eleftherios P Mamounas, Charles E Geyer, Shari Gelber, Alan S Coates, Richard D Gelber, Priya Rastogi, Meredith M Regan, Norman Wolmark, Stefan Aebi
Purpose Isolated locoregional recurrence (ILRR) predicts a high risk of developing breast cancer distant metastases and death. The Chemotherapy as Adjuvant for LOcally Recurrent breast cancer (CALOR) trial investigated the effectiveness of chemotherapy (CT) after local therapy for ILRR. A report at 5 years of median follow-up showed significant benefit of CT for estrogen receptor (ER)-negative ILRR, but additional follow-up was required in ER-positive ILRR. Patients and Methods CALOR was an open-label, randomized trial for patients with completely excised ILRR after unilateral breast cancer...
February 14, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
Rui Shi, Mark Norman, Zhong Chen, Tom Wong
Atrial fibrillation (AF) is the most common clinical arrhythmia encountered. Catheter ablation has become the first-line therapy for symptomatic drug-refractory paroxysmal and persistent AF. Although pulmonary vein electrical isolation is still the cornerstone of the ablation strategy, the clinical outcome particularly in treating persistent AF is suboptimal. Significant efforts have been applied with live global chamber mapping of AF aimed to identify patient-specific drivers and/or maintainers located outside of the pulmonary veins to further improve the outcome of catheter ablation...
February 14, 2018: Future Cardiology
Anju Victor, Carolin Elizabeth George, Leeberk Raja Inbaraj, Gift Norman
Background: In India, roughly one-half of patients undergoing cancer treatment are unaware of their diagnosis or treatment. The intention of this study is to determine the prevalence of collusion and its influence on quality of life (QOL) among patients in palliative care settings. Methodology: A cross-sectional study was conducted among 100 palliative care patients to assess the extent of knowledge about their diagnosis and prognosis. The caretakers and the treating doctors were interviewed using a semi-structured questionnaire to assess if diagnosis was revealed to a patient...
January 2018: Indian Journal of Palliative Care
Rachel D Torok, Jennifer S Li, Prince J Kannankeril, Andrew M Atz, Raafat Bishai, Ellen Bolotin, Stefanie Breitenstein, Cathy Chen, Thomas Diacovo, Timothy Feltes, Patricia Furlong, Michael Hanna, Eric M Graham, Daphne Hsu, D Dunbar Ivy, Dianne Murphy, Lisa A Kammerman, Gregory Kearns, John Lawrence, Brigitte Lebeaut, Danshi Li, Christoph Male, Brian McCrindle, Pierre Mugnier, Jane W Newburger, Gail D Pearson, Vasum Peiris, Lisa Percival, Miriam Pina, Ronald Portman, Robert Shaddy, Norman L Stockbridge, Robert Temple, Kevin D Hill
No abstract text is available yet for this article.
February 10, 2018: Journal of the American Heart Association
Kirsten J Langdon, Jafar Bakhshaie, Alicia Lopez, Niloofar Tavakoli, Lorra Garey, Amanda M Raines, Brooke Y Kauffman, Norman B Schmidt, Michael J Zvolensky
OBJECTIVES: Elevated levels of anxiety sensitivity (AS; fear of anxiety and internal sensations) is highly common among adults who smoke, and contributes to several maladaptive smoking beliefs and behaviors. AS is comprised of 3 empirically established factors, relating to fears of social concerns, fears of physical symptoms, and fears of cognitive dyscontrol. Relatively few studies have examined how these 3 subscales pertain to smoking processes. The aim of the present investigation was to examine, among treatment-seeking adults who smoke, the interactive effects of AS-physical and cognitive concerns in relation to: perceived barriers to smoking cessation; smoking-related negative reinforcement expectancies; and smoking-related avoidance and inflexibility...
February 12, 2018: Journal of Addiction Medicine
Samir M Iskander, Meghan M Feeney, Kirby Yee, Norman D Rosenblum
Nonobstructive hydronephrosis, defined as dilatation of the renal pelvis with or without dilatation of the ureter, is the most common antenatal abnormality detected by fetal ultrasound. Yet, the etiology of nonobstructive hydronephrosis is poorly defined. We previously demonstrated that defective development of urinary tract pacemaker cells (utPMCs) expressing hyperpolarization-activated cyclic nucleotide-gated channel 3 (HCN3) and the stem cell marker cKIT causes abnormal ureteric peristalsis and nonobstructive hydronephrosis...
February 7, 2018: Journal of the American Society of Nephrology: JASN
Hee-Don Chae, Nick Cox, Gary V Dahl, Norman J Lacayo, Kara L Davis, Samanta Capolicchio, Mark Smith, Kathleen M Sakamoto
CREB (cAMP Response Element Binding protein) is a transcription factor that is overexpressed in primary acute myeloid leukemia (AML) cells and associated with a decreased event-free survival and increased risk of relapse. We recently reported a small molecule inhibitor of CREB, XX-650-23, which inhibits CREB activity in AML cells. Structure-activity relationship analysis for chemical compounds with structures similar to XX-650-23 led to the identification of the anthelminthic drug niclosamide as a potent anti-leukemic agent that suppresses cell viability of AML cell lines and primary AML cells without a significant decrease in colony forming activity of normal bone marrow cells...
January 12, 2018: Oncotarget
Mariam M Youssef, Mark D Underwood, Yung-Yu Huang, Shu-Chi Hsiung, Yan Liu, Norman R Simpson, Mihran J Bakalian, Gorazd B Rosoklija, Andrew J Dwork, Victoria Arango, J John Mann
Background: Brain-derived neurotrophic factor (BDNF) is implicated in the pathophysiology of major depressive disorder (MDD) and suicide. Both are partly caused by early life adversity (ELA) and ELA reduces BDNF protein levels. This study examines the association of BDNF Val66Met polymorphism and brain BDNF levels with depression and suicide. We hypothesized that both MDD and ELA would be associated with the Met allele and lower brain BDNF levels. Such an association would be consistent with low BDNF mediating the effect of ELA on adulthood suicide and MDD...
February 8, 2018: International Journal of Neuropsychopharmacology
Sandeep Chhabra, Patrick Fischer, Koh Takeuchi, Abhinav Dubey, Joshua J Ziarek, Andras Boeszoermenyi, Daniel Mathieu, Wolfgang Bermel, Norman E Davey, Gerhard Wagner, Haribabu Arthanari
Studies over the past decade have highlighted the functional significance of intrinsically disordered proteins (IDPs). Due to conformational heterogeneity and inherent dynamics, structural studies of IDPs have relied mostly on NMR spectroscopy, despite IDPs having characteristics that make them challenging to study using traditional 1H-detected biomolecular NMR techniques. Here, we develop a suite of 3D 15N-detected experiments that take advantage of the slower transverse relaxation property of 15N nuclei, the associated narrower linewidth, and the greater chemical shift dispersion compared with those of 1H and 13C resonances...
February 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
Maria Naumova, Dmitry Khakhulin, Mateusz Rebarz, Martin Rohrmüller, Benjamin Dicke, Mykola Biednov, Alexander Britz, Shirly Espinoza, Benjamin Grimm-Lebsanft, Miroslav Kloz, Norman Kretzschmar, Adam Neuba, Jochen Ortmeyer, Roland Schoch, Jakob Andreasson, Matthias Bauer, Christian Bressler, Wolf Gero Schmidt, Gerald Henkel, Michael Rübhausen
The structural dynamics of charge-transfer states of nitrogen-ligated copper complexes has been extensively investigated in recent years following the development of pump-probe X-ray techniques. In this study we extend this approach towards copper complexes with sulfur coordination and investigate the influence of charge transfer states on the structure of a dicopper(i) complex with coordination by bridging disulfide ligands and additionally tetramethylguanidine units [CuI2(NSSN)2]2+. In order to directly observe and refine the photoinduced structural changes in the solvated complex we applied picosecond pump-probe X-ray absorption spectroscopy (XAS) and wide-angle X-ray scattering (WAXS)...
February 12, 2018: Physical Chemistry Chemical Physics: PCCP
William R Smith
Several prominent writers including Norman Daniels, James Sabin, Amy Gutmann, Dennis Thompson and Leonard Fleck advance a view of legitimacy according to which, roughly, policies are legitimate if and only if they result from democratic deliberation, which employs only public reasons that are publicised to stakeholders. Yet, the process described by this view contrasts with the actual processes involved in creating the Affordable Care Act (ACA) and in attempting to pass the Health Securities Act (HSA). Since the ACA seems to be legitimate, as the HSA would have been had it passed, they seem to be counterexamples to this view...
February 5, 2018: Journal of Medical Ethics
Marina Deeb, Norman Loberant, Atzmon Tsur
No abstract text is available yet for this article.
February 2018: Israel Medical Association Journal: IMAJ
Eyal Ginesin, Doron Norman, Bezalel Peskin
No abstract text is available yet for this article.
February 2018: Israel Medical Association Journal: IMAJ
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