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https://www.readbyqxmd.com/read/29232770/review-article-nexus-criteria-to-rule-out-cervical-spine-injury-among-older-patients-a-systematic-review
#1
REVIEW
Gabriel Paykin, Gerard O'Reilly, Helen Ackland, Biswadev Mitra
The National Emergency X-Radiography Utilization Study (NEXUS) criteria were derived from a heterogeneous group of adult blunt trauma patients, with the outcome measure assessed most commonly using plain X-ray radiographs. Recent observations have suggested inadequacy of these criteria for excluding injury in population subgroups such as the elderly. The aim of this systematic review was to determine the sensitivity of the NEXUS criteria in excluding cervical spine injury among older patients aged ≥65 years...
December 12, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29232768/modification-of-the-thrombolysis-in-myocardial-infarction-risk-score-for-patients-presenting-with-chest-pain-to-the-emergency-department
#2
Jaimi H Greenslade, Kimberly Chung, William A Parsonage, Tracey Hawkins, Martin Than, John W Pickering, Louise Cullen
OBJECTIVE: To develop a modified Thrombolysis in Myocardial Infarction (TIMI) score to effectively risk stratify patients presenting to the ED with chest pain. METHODS: A prospective observational study was conducted at two metropolitan EDs. Data were obtained during patient interview. The primary outcome was major adverse cardiovascular events (MACE) within 30 days of presentation. Two separate modifications of the TIMI score were developed. These scores were compared to the original TIMI in terms of the area under the receiver operating characteristic curve and diagnostic accuracy statistics (sensitivity, specificity, positive and negative predictive values)...
December 12, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29232693/host-factors-that-promote-retrotransposon-integration-are-similar-in-distantly-related-eukaryotes
#3
Sudhir Kumar Rai, Maya Sangesland, Michael Lee, Caroline Esnault, Yujin Cui, Atreyi Ghatak Chatterjee, Henry L Levin
Retroviruses and Long Terminal Repeat (LTR)-retrotransposons have distinct patterns of integration sites. The oncogenic potential of retrovirus-based vectors used in gene therapy is dependent on the selection of integration sites associated with promoters. The LTR-retrotransposon Tf1 of Schizosaccharomyces pombe is studied as a model for oncogenic retroviruses because it integrates into the promoters of stress response genes. Although integrases (INs) encoded by retroviruses and LTR-retrotransposons are responsible for catalyzing the insertion of cDNA into the host genome, it is thought that distinct host factors are required for the efficiency and specificity of integration...
December 12, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29232658/a-meta-analysis-of-randomized-controlled-trials-on-the-use-of-suction-drains-following-rectal-surgery
#4
Francesco Guerra, Giuseppe Giuliani, Diego Coletta, Marcello Boni, Fabio Rondelli, Paolo Pietro Bianchi, Andrea Coratti
BACKGROUND: Anastomotic leakage is one of the most feared complications of rectal resections. The role of drains in limiting this occurrence or facilitating its early recognition is still poorly defined. We aimed to study whether the presence of prophylactic pelvic drains affects the surgical outcomes of patients undergoing rectal surgery with extraperitoneal anastomosis. METHODS: PubMed, EMBASE, and the Cochrane Library were systematically searched for randomized controlled trials comparing drained with undrained anastomoses following rectal surgery...
December 12, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/29232650/internal-validation-of-two-new-retrotransposons-based-kits-innoquant%C3%A2-hy-and-innotyper%C3%A2-21-at-a-forensic-lab
#5
Cátia Martins, Paulo Miguel Ferreira, Raquel Carvalho, Sandra Cristina Costa, Carlos Farinha, Luísa Azevedo, António Amorim, Manuela Oliveira
Obtaining a genetic profile from pieces of evidence collected at a crime scene is the primary objective of forensic laboratories. New procedures, methods, kits, software or equipment must be carefully evaluated and validated before its implementation. The constant development of new methodologies for DNA testing leads to a steady process of validation, which consists of demonstrating that the technology is robust, reproducible, and reliable throughout a defined range of conditions. The present work aims to internally validate two new retrotransposon-based kits (InnoQuant® HY and InnoTyper® 21), under the working conditions of the Laboratório de Polícia Científica da Polícia Judiciária (LPC-PJ)...
November 29, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29232619/engineering-of-protein-nanopores-for-sequencing-chemical-or-protein-sensing-and-disease-diagnosis
#6
REVIEW
Shaoying Wang, Zhengyi Zhao, Farzin Haque, Peixuan Guo
Biological systems contain highly-ordered structures performing diverse functions. The elegant structures of biomachines have inspired the development of nanopores as single molecule sensors. Over the years, the utility of nanopores for detecting a wide variety of analytes have rapidly emerged for sensing, sequencing and diagnostic applications. Several protein channels with diverse shapes and sizes, such as motor channels from bacteriophage Phi29, SPP1, T3, and T4, as well as α-hemolysin, MspA, aerolysin, FluA, OmpF/G, CsgG, ClyA, have been continually investigated and developed as nanopores...
December 9, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/29232607/simultaneous-uplc-ms-ms-analysis-of-two-stable-isotope-labeled-versions-of-sucrose-in-mouse-plasma-and-brain-samples-as-markers-of-blood-brain-barrier-permeability-and-brain-vascular-space
#7
Ekram Ahmed Chowdhury, Faleh Alqahtani, Raktima Bhattacharya, Reza Mehvar, Ulrich Bickel
Blood Brain Barrier (BBB) permeability is frequently compromised in the course of diseases affecting the central nervous system (CNS). Sucrose is a low molecular weight, hydrophilic marker with slow permeability at the naive BBB and therefore one of the widely used indicators of barrier integrity. Our laboratory recently developed a highly sensitive UPLC-MS/MS method for stable isotope labeled [13C12]sucrose in biological matrices. Correction of total brain concentration for contribution of intravascular space is required in such experiments in order to accurately measure BBB permeability, and it is often accomplished by vascular perfusion with buffer solutions prior to brain sampling...
December 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29232606/microwave-assisted-synthesis-for-a2e-and-development-of-lc-esi-ms-method-for-quantification-of-ocular-bisretinoids-in-human-retina
#8
A Kotnala, S Senthilkumari, N Halder, A Kumar, T Velpandian
PURPOSE: To develop a microwave assisted method for the rapid synthesis of A2E and also to develop a method to quantify N-retinylidene-N-retinylethanolamine(A2E), all-trans retinal dimer (ATRD), A2-glycerophospho ethanolamine (A2GPE), dihydropyridine phosphatidyl ethanolamine (A2DHPE) and monofuran A2E (MFA2E) in age matched retina. METHODS: The development of microwave assisted synthesis of A2E, its purification and characterization for its utility in quantification in human retina...
November 26, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29232591/impact-of-time-on-ultrasonic-cavitation-peening-via-detection-of-surface-plastic-deformation
#9
Fushi Bai, Kai-Alexander Saalbach, Liang Wang, Xiaogeng Wang, Jens Twiefel
During ultrasonic cavitation peening, bubbles repeatedly form and collapse, which leads to high impact loads on the treated surface. At the initial stage of ultrasonic cavitation peening, the most obvious change is plastic deformation instead of mass loss on the treated specimen surface. Meanwhile the plastic deformation is beneficial for mechanical surface properties. As the cavitation exposure time increases, erosion and damage are inflicted on the metal surface due to the increase in the number of collapse events...
December 5, 2017: Ultrasonics
https://www.readbyqxmd.com/read/29232584/natural-product-inspired-library-synthesis-identification-of-2-3-diarylbenzofuran-and-2-3-dihydrobenzofuran-based-inhibitors-of-chlamydia-trachomatis
#10
Michael Saleeb, Sergio Mojica, Anna U Eriksson, C David Andersson, Åsa Gylfe, Mikael Elofsson
A natural product inspired library was synthesized based on 2,3-diarylbenzofuran and 2,3-diaryl-2,3-dihydrobenzofuran scaffolds. The library of forty-eight compounds was prepared by utilizing Pd-catalyzed one-pot multicomponent reactions and ruthenium-catalyzed intramolecular carbenoid C-H insertions. The compounds were evaluated for antibacterial activity in a panel of test systems including phenotypic, biochemical and image-based screening assays. We identified several potent inhibitors that block intracellular replication of pathogenic Chlamydia trachomatis with IC50 ≤ 3 μM...
December 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29232504/a-genetic-toolbox-for-modulating-the-expression-of-heterologous-genes-in-the-cyanobacterium-synechocystis-sp-pcc-6803
#11
Bo Wang, Carrie Eckert, Pin-Ching Maness, Jianping Yu
Cyanobacteria, genetic models for photosynthesis research for decades, have recently become attractive hosts for producing renewable fuels and chemicals, owing to their genetic tractability, relatively fast growth, and their ability to utilize sunlight, fix carbon dioxide and, in some cases, fix nitrogen. Despite significant advances, there is still an urgent demand for synthetic biology tools in order to effectively manipulate genetic circuits in cyanobacteria. In this study, we have compared a total of 17 natural and chimeric promoters, focusing on expression of the ethylene-forming enzyme (EFE) in the cyanobacterium Synechocystis sp...
December 12, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/29232499/magnetic-field-enhanced-4-electron-pathway-by-the-well-aligned-co3o4-ecnfs-design-in-the-oxygen-reduction-reaction
#12
Zheng Zeng, Tian Zhang, Yiyang Liu, Wendi Zhang, Ziyu Yin, Zuowei Ji, Jianjun Wei
The sluggish reaction kinetics of oxygen reduction reaction (ORR) has been the limiting factor for fuel energy utilization, hence it is desirable to develop a high performance electrocatalysis with a 4-electron pathway ORR. Here, we report a constant low-current (50 μA) electrodeposition technique to develop a uniform Co3O4 film formation at the well-aligned electrospun carbon nanofibers (ECNFs) with a time-dependent growth mechanism. This work also reports a new finding of milli-Tesla (mT) magnetic field induced enhancement of electron exchange number of the ORR at glassy carbon electrode modified with the Co3O4/ECNFs catalyst...
December 12, 2017: ChemSusChem
https://www.readbyqxmd.com/read/29232466/real-world-evidence-in-the-treatment-of-ovarian-cancer
#13
E A Eisenhauer
Introduction: 'Real-world evidence (RWE)' refers to information on the utilization and outcome of new therapies and technologies in clinical practice. RWE may include single institution cohort studies, population-based health services studies, or (inter)national data on survival and mortality. This paper reviews RWE on the impact of treatment in ovarian cancer. Materials and methods: A literature review of publications addressing population level survival outcomes of new surgical and systemic treatment interventions in ovarian cancer was undertaken...
November 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29232413/determinants-of-dietary-diversity-and-the-potential-role-of-men-in-improving-household-nutrition-in-tanzania
#14
Justus Ochieng, Victor Afari-Sefa, Philipo Joseph Lukumay, Thomas Dubois
Good nutrition is a prerequisite for a healthy and active life, especially for agriculture-dependent households. However, diets in most households in Tanzania lack diversity because the intake of meat, poultry, fish, and vegetables and fruits is low. This study estimates factors influencing dietary diversity of the household, children under five years, and women using primary survey data. It qualitatively assesses male dietary patterns and men's potential role in improving the nutritional status of the entire household...
2017: PloS One
https://www.readbyqxmd.com/read/29232397/distribution-and-prevalence-of-vector-borne-diseases-in-california-chipmunks-tamias-spp
#15
Mary H Straub, Austin N Roy, Amanda Martin, Kathleen E Sholty, Nicole Stephenson, Janet E Foley
California, with 13 chipmunk (Tamias) species, has more than any other state or country, occupying habitats ranging from chaparral to the high peaks of the Sierra Nevada. Chipmunks host zoonotic pathogens including Yersinia pestis, Anaplasma phagocytophilum, relapsing fever (RF) Borrelia spp., Borrelia burgdorferi, and spotted fever group (SFG) Rickettsia species. Chipmunk species are often not differentiated by public health workers, yet different species utilize different ecological niches and may have intrinsically different capacities for maintaining vector-borne pathogens and infecting vectors...
2017: PloS One
https://www.readbyqxmd.com/read/29232373/disentangling-metabolic-functions-of-bacteria-in-the-honey-bee-gut
#16
Lucie Kešnerová, Ruben A T Mars, Kirsten M Ellegaard, Michaël Troilo, Uwe Sauer, Philipp Engel
It is presently unclear how much individual community members contribute to the overall metabolic output of a gut microbiota. To address this question, we used the honey bee, which harbors a relatively simple and remarkably conserved gut microbiota with striking parallels to the mammalian system and importance for bee health. Using untargeted metabolomics, we profiled metabolic changes in gnotobiotic bees that were colonized with the complete microbiota reconstituted from cultured strains. We then determined the contribution of individual community members in mono-colonized bees and recapitulated our findings using in vitro cultures...
December 2017: PLoS Biology
https://www.readbyqxmd.com/read/29232325/utility-of-electronic-medical-records-in-community-rheumatology-practice-for-assessing-quality-of-care-indicators-for-gout-a-feasibility-study
#17
Augusto Estrada, Nicole W Tsao, Alyssa Howren, John M Esdaile, Kamran Shojania, Mary A De Vera
OBJECTIVES: With comprehensive capture of information on patient encounters, electronic medical records (EMRs) may have utility for assessing adherence to quality indicators (QIs) in gout. Our objectives were to translate 10 previously established gout QIs into relevant EMR data and evaluate and describe the feasibility of using EMRs to assess gout QIs. METHODS: Using EMRs from 3 community rheumatology practices in Vancouver, British Columbia, Canada, we identified gout patients seen between January 1, 2012, and December 31, 2013...
December 12, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29232323/racial-variation-in-total-knee-replacement-in-a-diverse-nationwide-clinical-trial
#18
Lindsey A MacFarlane, Eunjung Kim, Nancy R Cook, I-Min Lee, Maura D Iversen, Jeffrey N Katz, Karen H Costenbader
OBJECTIVE: Racial variation in total knee replacement (TKR) utilization in the United States has been reported in administrative database studies. We investigated racial variation in TKR procedures in a diverse cohort with severe knee pain followed in an ongoing clinical trial. METHODS: VITAL (VITamin D and OmegA-3 TriaL) is a nationwide, randomized controlled trial of 25,874 adults, 20% of whom are black. We identified a subgroup highly likely to have knee osteoarthritis based on severity of knee pain, physician-diagnosed knee osteoarthritis, and inability to walk 2 to 3 blocks without pain...
December 12, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29232283/levocarnitine-for-the-treatment-of-valproic-acid-induced-hyperammonemic-encephalopathy-in-children-the-experience-of-large-tertiary-care-pediatric-hospital-and-a-poison-center
#19
Miguel Glatstein, Pedro Bonifacio Rino, Silvina de Pinho, Dennis Scolnik, Dikla Pivko-Levi, Christopher Hoyte
BACKGROUND: Although rare, symptomatic hyperammonemia is sometimes associated with valproic acid (VPA), especially in children. L-carnitine (levocarnitine), sometimes classified as an essential amino acid, is vital to mitochondrial utilization of fatty acids and can be helpful in treating this condition. The data supporting this, however, are limited. STUDY QUESTION: The aim of the study was to illustrate the role of L-carnitine in the treatment of patients with VPA-induced hyperammonemic encephalopathy (VPE) at 2 different institutions...
November 22, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/29232248/endocarditis-in-the-setting-of-idu-multidisciplinary-management
#20
Bobby Yanagawa, Anees Bahji, Wiplove Lamba, Darrell H Tan, Asim Cheema, Ishba Syed, Subodh Verma
PURPOSE OF REVIEW: The purpose of this article is to provide a brief overview of the medical and surgical management of infective endocarditis secondary to IDU, with a focus on the underlying substance use disorder. RECENT FINDINGS: Patients with infective endocarditis secondary to IDU are often young with unique comorbidities including mental illness, chronic hepatitis C, HIV infection, which are often compounded by limited social and familial supports. The focus of management has been treatment of endocarditis using IV antibiotics alongside surgery...
December 11, 2017: Current Opinion in Cardiology
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