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https://www.readbyqxmd.com/read/29662749/adverse-events-following-cervical-disc-arthroplasty-a-systematic-review
#1
REVIEW
Jordan C Xu, Chandni Goel, Michael F Shriver, Joseph E Tanenbaum, Michael P Steinmetz, Edward C Benzel, Thomas E Mroz
Study Design: Systematic review. Objectives: Cervical arthroplasty is an increasingly popular treatment of cervical radiculopathy and myelopathy. An understanding of the potential adverse events (AEs) is important to help both clinicians and patients. We sought to provide a comprehensive systematic review of the AEs reported in all randomized controlled trials (RCTs) of cervical disc arthroplasty in an attempt to characterize the quality of reporting. Methods: We conducted a systematic review of MEDLINE and Web of Science for RCTs of cervical disc arthroplasty reporting AEs...
April 2018: Global Spine Journal
https://www.readbyqxmd.com/read/29661618/anesthesia-and-the-risk-of-dementia-in-the-elderly
#2
Jacob Steinmetz, Lars Simon Rasmussen
Cognitive complications are common after surgery in the elderly, and with an increased number of elderly patients undergoing surgery, a potential impact of anaesthesia and surgery on long term cognition, and especially dementia would be concerning. The question whether anaesthesia and surgery in itself induce structural changes in the brain and thereby cognitive deterioration, or reveal a preexisting cognitive impairment remains unresolved. Several studies show an increased risk of reversible cognitive impairment after surgery in the elderly, but the risk of inducing dementia remains speculative...
April 13, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29651464/hex-a-heterologous-expression-platform-for-the-discovery-of-fungal-natural-products
#3
Colin J B Harvey, Mancheng Tang, Ulrich Schlecht, Joe Horecka, Curt R Fischer, Hsiao-Ching Lin, Jian Li, Brian Naughton, James Cherry, Molly Miranda, Yong Fuga Li, Angela M Chu, James R Hennessy, Gergana A Vandova, Diane Inglis, Raeka S Aiyar, Lars M Steinmetz, Ronald W Davis, Marnix H Medema, Elizabeth Sattely, Chaitan Khosla, Robert P St Onge, Yi Tang, Maureen E Hillenmeyer
For decades, fungi have been a source of U.S. Food and Drug Administration-approved natural products such as penicillin, cyclosporine, and the statins. Recent breakthroughs in DNA sequencing suggest that millions of fungal species exist on Earth, with each genome encoding pathways capable of generating as many as dozens of natural products. However, the majority of encoded molecules are difficult or impossible to access because the organisms are uncultivable or the genes are transcriptionally silent. To overcome this bottleneck in natural product discovery, we developed the HEx (Heterologous EXpression) synthetic biology platform for rapid, scalable expression of fungal biosynthetic genes and their encoded metabolites in Saccharomyces cerevisiae ...
April 2018: Science Advances
https://www.readbyqxmd.com/read/29649236/predictive-value-for-cardiovascular-events-of-common-carotid-intima-media-thickness-and-its-rate-of-change-in-individuals-at-high-cardiovascular-risk-results-from-the-prog-imt-collaboration
#4
Matthias W Lorenz, Lu Gao, Kathrin Ziegelbauer, Giuseppe Danilo Norata, Jean Philippe Empana, Irene Schmidtmann, Hung-Ju Lin, Stela McLachlan, Lena Bokemark, Kimmo Ronkainen, Mauro Amato, Ulf Schminke, Sathanur R Srinivasan, Lars Lind, Shuhei Okazaki, Coen D A Stehouwer, Peter Willeit, Joseph F Polak, Helmuth Steinmetz, Dirk Sander, Holger Poppert, Moise Desvarieux, M Arfan Ikram, Stein Harald Johnsen, Daniel Staub, Cesare R Sirtori, Bernhard Iglseder, Oscar Beloqui, Gunnar Engström, Alfonso Friera, Francesco Rozza, Wuxiang Xie, Grace Parraga, Liliana Grigore, Matthieu Plichart, Stefan Blankenberg, Ta-Chen Su, Caroline Schmidt, Tomi-Pekka Tuomainen, Fabrizio Veglia, Henry Völzke, Giel Nijpels, Johann Willeit, Ralph L Sacco, Oscar H Franco, Heiko Uthoff, Bo Hedblad, Carmen Suarez, Raffaele Izzo, Dong Zhao, Thapat Wannarong, Alberico Catapano, Pierre Ducimetiere, Christine Espinola-Klein, Kuo-Liong Chien, Jackie F Price, Göran Bergström, Jussi Kauhanen, Elena Tremoli, Marcus Dörr, Gerald Berenson, Kazuo Kitagawa, Jacqueline M Dekker, Stefan Kiechl, Matthias Sitzer, Horst Bickel, Tatjana Rundek, Albert Hofman, Ellisiv B Mathiesen, Samuela Castelnuovo, Manuel F Landecho, Maria Rosvall, Rafael Gabriel, Nicola de Luca, Jing Liu, Damiano Baldassarre, Maryam Kavousi, Eric de Groot, Michiel L Bots, David N Yanez, Simon G Thompson
AIMS: Carotid intima media thickness (CIMT) predicts cardiovascular (CVD) events, but the predictive value of CIMT change is debated. We assessed the relation between CIMT change and events in individuals at high cardiovascular risk. METHODS AND RESULTS: From 31 cohorts with two CIMT scans (total n = 89070) on average 3.6 years apart and clinical follow-up, subcohorts were drawn: (A) individuals with at least 3 cardiovascular risk factors without previous CVD events, (B) individuals with carotid plaques without previous CVD events, and (C) individuals with previous CVD events...
2018: PloS One
https://www.readbyqxmd.com/read/29626492/environmental-enrichment-reduces-cocaine-neurotoxicity-during-cocaine-conditioned-place-preference-in-male-rats
#5
Luana Freese, Felipe Borges Almeida, Nubia Heidrich, Alana Witt Hansen, Luiza Steffens, Aline Steinmetz, Dinara Jaqueline Moura, Rosane Gomez, Helena Maria Tannhauser Barros
Environmental enrichment (EE) has a neuroprotective role and prevents the development of cocaine addiction behavior in rats. Studies showing the role of EE in cocaine toxicity are nonexistent. We hypothesized that rats exposed to EE are protected from cocaine-induced changes in the redox profile and DNA damage after undergoing conditioned place preference (CPP). Ten male Wistar rats were placed in EE cages equipped with toys, a ladder and tunnels, and ten were provided clean, standard laboratory housing (non-EE)...
April 4, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29613803/treatment-of-canine-oral-melanoma-with-nanotechnology-based-immunotherapy-and-radiation
#6
P Jack Hoopes, Robert J Wagner, Kayla Duval, Kevin Kang, David J Gladstone, Karen L Moodie, Margaret Crary-Burney, Hugo Ariaspulido, Frank A Veliz, Nicole F Steinmetz, Steven Fiering
The presence and benefit of a radiation therapy-associated immune reaction is of great interest as the overall interest in cancer immunotherapy expands. Radiation therapy (RT) pathology studies have rarely demonstrated a consistent immune or inflammatory response following conventional RT. More recent information, primarily associated with the "abscopal effect", suggests a subtle radiation-based systemic immune response may be more common and have more therapeutic potential than previously believed...
April 3, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29587257/a-network-wide-stroke-team-program-reduces-time-to-treatment-for-endovascular-stroke-therapy-in-a-regional-stroke-network
#7
Ferdinand O Bohmann, Damla Tahtali, Natalia Kurka, Marlies Wagner, Se-Jong You, Richard du Mesnil de Rochemont, Joachim Berkefeld, Ann-Kathrin Hartmetz, Andrea Kuhlmann, Matthias W Lorenz, Ansgar Schütz, Bodo Kress, Christian Henke, Stephanie Tritt, Uta Meyding-Lamadé, Helmuth Steinmetz, Waltraud Pfeilschifter
BACKGROUND AND PURPOSE: Driven by the positive results of randomized, controlled trials of endovascular stroke therapies (EVT) in stroke patients with large vessel occlusion, different approaches to speed up the workflow for EVT candidates are currently being implemented worldwide. We aimed to assess the effect of a simple stroke network-wide workflow improvement project, primarily focusing on i.v. thrombolysis, on process times for patients undergoing EVT. METHODS: In 2015, we conducted a network-wide, peer-to-peer acute stroke workflow improvement program for i...
March 27, 2018: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/29576319/structure-function-relationship-of-the-bik1-bim1-complex
#8
Marcel M Stangier, Anil Kumar, Xiuzhen Chen, Ana-Maria Farcas, Yves Barral, Michel O Steinmetz
In budding yeast, the microtubule plus-end tracking proteins Bik1 (CLIP-170) and Bim1 (EB1) form a complex that interacts with partners involved in spindle positioning, including Stu2 and Kar9. Here, we show that the CAP-Gly and coiled-coil domains of Bik1 interact with the C-terminal ETF peptide of Bim1 and the C-terminal tail region of Stu2, respectively. The crystal structures of the CAP-Gly domain of Bik1 (Bik1CG) alone and in complex with an ETF peptide revealed unique, functionally relevant CAP-Gly elements, establishing Bik1CG as a specific C-terminal phenylalanine recognition domain...
March 20, 2018: Structure
https://www.readbyqxmd.com/read/29574857/accuracy-of-medical-students-in-detecting-pleural-effusion-using-lung-ultrasound-as-an-adjunct-to-the-physical-examination
#9
Peter Steinmetz, Sharon Oleskevich, Alina Dyachenko, Jane McCusker, John Lewis
OBJECTIVES: This study compared the accuracy of medical students in identifying pleural effusion in hospitalized patients using the physical examination versus lung ultrasound (US). METHODS: Fourth-year medical students (n = 14) received 20 hours of general practical US training (including 2 hours of specialized lung US training) plus theoretical and video documentation. The students used the physical examination alone versus the physical examination plus lung US to document the presence or absence of pleural effusion in the right and left hemithoraces of hospitalized patients (n = 11 patients; 22 hemithoraces examined 544 times in total)...
March 25, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29570048/key-drivers-of-patient-satisfaction-in-lumbar-spine-surgery
#10
Jay M Levin, Robert D Winkelman, Joseph E Tanenbaum, Edward C Benzel, Thomas E Mroz, Michael P Steinmetz
OBJECTIVE The Patient Experience of Care, composed of 9 dimensions derived from the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey, is being used by the Centers for Medicare & Medicaid Services to adjust hospital reimbursement. Currently, there are minimal data on how scores on the constituent HCAHPS items impact the global dimension of satisfaction, the Overall Hospital Rating (OHR). The purpose of this study was to determine the key drivers of overall patient satisfaction in the setting of inpatient lumbar spine surgery...
March 23, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29565586/comprehensive-thermochemical-benchmark-set-of-realistic-closed-shell-metal-organic-reactions
#11
Sebastian Dohm, Andreas Hansen, Marc Steinmetz, Stefan Grimme, Marek P Checinski
We introduce the new MOR41 benchmark set consisting of 41 closed shell organometallic reactions resembling many important chemical transformations commonly used in transition metal chemistry and catalysis. It includes significantly larger molecules than presented in other transition metal test sets and covers a broad range of bonding motifs. Recent progress in linear-scaling coupled cluster theory allowed for the calculation of accurate DLPNO-CCSD(T)/CBS(def2-TZVPP/def2-QZVPP) reference energies for 3d,4d,5d-transition metal compounds with up to 120 atoms...
March 22, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29560979/fine-structure-of-excitons-and-electron-hole-exchange-energy-in-polymorphic-cspbbr-3-single-nanocrystals
#12
Julien Ramade, Léon Marcel Andriambariarijaona, Violette Steinmetz, Nicolas Goubet, Laurent Legrand, Thierry Barisien, Frédérick Bernardot, Christophe Testelin, Emmanuel Lhuillier, Alberto Bramati, Maria Chamarro
All inorganic CsPbX3 (X = Cl, Br, I) nanocrystals (NCs) belong to the novel class of confined metal-halide perovskites which are currently arousing enthusiasm and stimulating huge activity across several fields of optoelectronics due to outstanding properties. A deep knowledge of the band-edge excitonic properties of these materials is thus crucial to further optimize their performances. Here, high-resolution photoluminescence (PL) spectroscopy of single bromide-based NCs reveals the exciton fine structure in the form of sharp peaks that are linearly polarized and grouped in doublets or triplets, which directly mirror the adopted crystalline structure, tetragonal (D4h symmetry) or orthorhombic (D2h symmetry)...
March 21, 2018: Nanoscale
https://www.readbyqxmd.com/read/29553267/speciation-of-phenanthriplatin-and-its-analogs-in-the-core-of-tobacco-mosaic-virus
#13
Amit A Vernekar, Gilles Berger, Anna E Czapar, Frank A Veliz, David I Wang, Nicole F Steinmetz, Stephen J Lippard
Efficient loading of drugs in novel delivery agents has the potential to substantially improve therapy by targeting the diseased tissue while avoiding unwanted side effects. Here we report the first systematic study of the loading mechanism of phenanthriplatin and its analogs into tobacco mosaic virus (TMV), previously used by our group as an efficient carrier for anticancer drug delivery. A detailed investigation of the preferential uptake of phenanthriplatin in its aquated form (∼2000 molecules per TMV particle versus ∼1000 for the chlorido form) is provided...
March 19, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29545389/mechanisms-of-critical-period-in-the-hippocampus-underlie-object-location-learning-and-memory-in-infant-rats
#14
Alessio Travaglia, Adam B Steinmetz, Janelle M Miranda, Cristina M Alberini
Episodic memories in early childhood are rapidly forgotten, a phenomenon that is associated with "infantile amnesia," the inability of adults to remember early-life experiences. We recently showed that early aversive contextual memory in infant rats, which is in fact rapidly forgotten, is actually not lost, as reminders presented later in life reinstate a long-lasting and context-specific memory. We also showed that the formation of this infantile memory recruits in the hippocampus mechanisms typical of developmental critical periods...
April 2018: Learning & Memory
https://www.readbyqxmd.com/read/29538467/inter-vendor-reproducibility-of-left-and-right-ventricular-cardiovascular-magnetic-resonance-myocardial-feature-tracking
#15
Roman Johannes Gertz, Torben Lange, Johannes Tammo Kowallick, Sören Jan Backhaus, Michael Steinmetz, Wieland Staab, Shelby Kutty, Gerd Hasenfuß, Joachim Lotz, Andreas Schuster
AIM: Since cardiovascular magnetic resonance feature-tracking (CMR-FT) has been demonstrated to be of incremental clinical merit we investigated the interchangeability of global left and right ventricular strain parameters between different CMR-FT software solutions. MATERIAL AND METHODS: CMR-cine images of 10 patients without significant reduction in LVEF and RVEF and 10 patients with a significantly impaired systolic function were analyzed using two different types of FT-software (TomTec, Germany; QStrain, Netherlands)...
2018: PloS One
https://www.readbyqxmd.com/read/29531797/aspergillus-spinal-epidural-abscess-case-presentation-and-review-of-the-literature
#16
Faris Shweikeh, Stephanie Zyck, Fadi Sweiss, Ajleeta Sangtani, Mohammed Shweikeh, Husam Issa, Michael P Steinmetz, Georges Z Markarian
Study design: In this review, we present a case of Aspergillus spinal epidural abscess (ASEA) and review the literature. Objectives: To provide further insight on a rare condition. Setting: A description of a patient with ASEA in a 58-year-old woman that was successfully treated with conservative management is presented. Methods: Following case presentation, a literature search (MedLine and PubMed) and assessment of epidemiology, presentation, diagnosis, treatments, and outcomes is performed...
2018: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/29523799/high-affinity-ligands-of-the-colchicine-domain-in-tubulin-based-on-a-structure-guided-design
#17
Oskía Bueno, Juan Estévez Gallego, Solange Martins, Andrea E Prota, Federico Gago, Asier Gómez-SanJuan, María-José Camarasa, Isabel Barasoain, Michel O Steinmetz, J Fernando Díaz, María-Jesús Pérez-Pérez, Sandra Liekens, Eva-María Priego
Microtubule-targeting agents that bind at the colchicine-site of tubulin are of particular interest in antitumoral therapy due to their dual mechanism of action as antimitotics and vascular disrupting agents. Cyclohexanediones derivatives have been described as a new family of colchicine-domain binders with an association constant to tubulin similar to that of colchicine. Here, the high-resolution structures of tubulin in complex with cyclohexanediones TUB015 and TUB075 were solved by X-ray crystallography...
March 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29522120/policies-affecting-medicaid-beneficiaries-smoking-cessation-behaviors
#18
Erin Brantley, Jessica Greene, Brian Bruen, Erika Steinmetz, Leighton Ku
Introduction: Smoking rates for Medicaid beneficiaries have remained flat in recent years. Medicaid may support smokers in quitting by covering a broad array of tobacco cessation services without barriers such as copays. This study examines the impact of increasing generosity in Medicaid tobacco cessation coverage policies on smoking and cessation behaviors. Methods: We used 2010 and 2015 National Health Interview Survey data merged with information on state tobacco, Medicaid cessation, and Medicaid eligibility policies to estimate state fixed effects models of cessation medication use, counseling use, quit attempts, and current smoking...
March 7, 2018: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29516083/value-of-adding-predictive-clinical-decision-tools-to-spine-surgery
#19
Michael P Steinmetz, Thomas Mroz
No abstract text is available yet for this article.
March 7, 2018: JAMA Surgery
https://www.readbyqxmd.com/read/29497857/sex-specific-trajectories-of-adhd-symptoms-from-adolescence-to-young-adulthood
#20
Sabina Millenet, Manfred Laucht, Erika Hohm, Christine Jennen-Steinmetz, Sarah Hohmann, Martin H Schmidt, Günter Esser, Tobias Banaschewski, Daniel Brandeis, Katrin Zohsel
Reports of current ADHD symptoms in adults with a childhood diagnosis of ADHD are often discrepant: While one subgroup reports a particularly high level of current ADHD symptoms, another reports-in contrast-a very low level. The reasons for this difference remain unclear. Although sex might play a moderating role, it has not yet been examined in this regard. In an epidemiological cohort study from birth to young adulthood, childhood ADHD diagnoses were assessed at the ages of 4.5, 8, and 11 years based on parent ratings...
March 1, 2018: European Child & Adolescent Psychiatry
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