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https://www.readbyqxmd.com/read/29330346/underestimation-of-staphylococcus-aureus-mrsa-and-mssa-carriage-associated-with-standard-culturing-techniques-one-third-of-carriers-missed
#1
S T J Tsang, M P McHugh, D Guerendiain, P J Gwynne, J Boyd, A H R W Simpson, T S Walsh, I F Laurenson, K E Templeton
OBJECTIVES: Nasal carriers of Staphylococcus (S.) aureus (MRSA and MSSA) have an increased risk for healthcare-associated infections. There are currently limited national screening policies for the detection of S. aureus despite the World Health Organization's recommendations. This study aimed to evaluate the diagnostic performance of molecular and culture techniques in S. aureus screening, determine the cause of any discrepancy between the diagnostic techniques, and model the potential effect of different diagnostic techniques on S...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29330199/association-between-community-socioeconomic-characteristics-and-access-to-youth-flag-football
#2
Emily Kroshus, Aly J Sonnen, Sara Pd Chrisman, Frederick P Rivara
BACKGROUND: The American Academy of Pediatrics has recommended that opportunities for non-tackling American football (e.g., flag football) be expanded, given concerns about the risks of brain trauma from tackle football. This study tested the hypothesis that flag football would be more accessible in communities characterised by higher socioeconomic status residents. METHODS: In July 2017, the locations of community-based organisations offering youth flag and tackle football for youth between the ages of 6 and 13 in two US states (Georgia and Washington) were aggregated (n=440)...
January 12, 2018: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/29330134/a-supplementary-functional-connectivity-microstate-attached-to-the-default-mode-network-in-depression-revealed-by-resting-state-magnetoencephalography
#3
Siqi Zhang, Shui Tian, Mohammad Ridwan Chattun, Hao Tang, Rui Yan, Kun Bi, Zhijian Yao, Qing Lu
Default mode network (DMN) has discernable involvement in the representation of negative, self-referential information in depression. Both increased and decreased resting-state functional connectivity between the anterior and posterior DMN have been observed in depression. These conflicting connectivity differences necessitated further exploration of the resting-state DMN dysfunction in depression. Hence, we investigated the time-varying dynamic interactions within the DMN via functional connectivity microstates in a sub-second level...
January 9, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29329620/determination-and-validation-of-discriminating-concentration-of-ivermectin-against-rhipicephalus-microplus
#4
Abhijit Nandi, Sharath V Sagar, Gajanan Chigure, Ashutosh Fular, Anil Kumar Sharma, Gaurav Nagar, Sachin Kumar, B C Saravanan, Srikant Ghosh
Rhipicephalus microplus, the major cattle tick species of India is prevalent all over the country and causes huge economic loss directly or indirectly to the dairy industries. Chemical acaricides are playing an important role in managing tick infestations on livestock for many years and consequently, resistance to commonly used organophosphate (OP) and synthetic pyrethroid (SP) compounds has been reported. Subsequently, ivermectin (IVM) has been emerged as an alternative to manage OP and SP resistant ticks...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29329522/a-game-improving-the-assembly-of-pooled-functional-metagenomics-sequence-data
#5
Matteo Chiara, Antonio Placido, Ernesto Picardi, Luigi Ruggiero Ceci, David Stephen Horner, Graziano Pesole
BACKGROUND: Expression screening of environmental DNA (eDNA) libraries is a popular approach for the identification and characterization of novel microbial enzymes with promising biotechnological properties. In such "functional metagenomics" experiments, inserts, selected on the basis of activity assays, are sequenced with high throughput sequencing technologies. Assembly is followed by gene prediction, annotation and identification of candidate genes that are subsequently evaluated for biotechnological applications...
January 12, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29329294/a-two-stage-flow-based-intrusion-detection-model-for-next-generation-networks
#6
Muhammad Fahad Umer, Muhammad Sher, Yaxin Bi
The next-generation network provides state-of-the-art access-independent services over converged mobile and fixed networks. Security in the converged network environment is a major challenge. Traditional packet and protocol-based intrusion detection techniques cannot be used in next-generation networks due to slow throughput, low accuracy and their inability to inspect encrypted payload. An alternative solution for protection of next-generation networks is to use network flow records for detection of malicious activity in the network traffic...
2018: PloS One
https://www.readbyqxmd.com/read/29329064/user-acceptability-of-the-diagnosis-of-prolonged-grief-disorder-how-do-professionals-think-about-inclusion-in-icd-11
#7
Leonie Dietl, Birgit Wagner, Thomas Fydrich
BACKGROUND: For the next edition of the International Statistical Classification of Diseases (ICD-11) it is proposed to include prolonged grief disorder as a new diagnosis. The diagnosis describes persistent intensive and disabling grief reactions to bereavement (WHO, 2016b). The aim of the present survey was to determine the extent to which the diagnosis is accepted by practitioners in the healthcare and psychosocial field. METHODS: A total of 2088 German-speaking professionals in the fields of psychotherapy, psychology, counselling, medicine and palliative care completed the online survey...
January 3, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29328058/behaviour-of-niobium-during-early-earth-s-differentiation-insights-from-its-local-structure-and-oxidation-state-in-silicate-melts-at-high-pressure
#8
Chrystele Sanloup, Benjamin Cochain, Charlotte de Grouchy, Konstantin Glazyrin, Zuzana Konopkova, Hanns-Peter Liermann, Innokenty Kantor, Raffaella Torchio, O Mathon, Tetsuo Irifune
Niobium (Nb) is one of the key trace elements used to understand Earth's formation and differentiation, and is remarkable for its deficiency relative to tantalum in terrestrial rocks compared to the building chondritic blocks. In this context, the local environment of Nb in silica-rich melts and glasses is studied by in situ X-ray absorption spectroscopy (XAS) at high pressure (P) up to 9.3 GPa and 1350 K using resistive-heating diamond-anvil cells. Nb is slightly less oxidized in the melt (intermediate valence between +4 and +5) than in the glass (+5), an effect evidenced from the shift of the Nb-edge towards lower energies...
January 12, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29328043/complementary-and-alternative-medicine-and-medical-education-in-georgia-state-of-the-art-and-further-perspectives
#9
I Nadareishvili, K Lunze, G Pkhakadze, N Japiashvili, N Tabagari
Aim - complementary and alternative medicine (CAM) is popular in Georgia, but providers' training not well understood or regulated. The aim of this mixed-methods study was to inform the process of implementing quality CAM curricula in Georgia and strategies for the inclusion of effective CAM curricula into medical education in Georgia. We analyzed existing medical curricula. We conducted a contextual analysis based of qualitative data collected from relevant medical education experts, qualified physicians, CAM practitioners and other stakeholders; and administered a quantitative MD students' survey to MD students...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29327206/brain-photobiomodulation-therapy-a-narrative-review
#10
REVIEW
Farzad Salehpour, Javad Mahmoudi, Farzin Kamari, Saeed Sadigh-Eteghad, Seyed Hossein Rasta, Michael R Hamblin
Brain photobiomodulation (PBM) therapy using red to near-infrared (NIR) light is an innovative treatment for a wide range of neurological and psychological conditions. Red/NIR light is able to stimulate complex IV of the mitochondrial respiratory chain (cytochrome c oxidase) and increase ATP synthesis. Moreover, light absorption by ion channels results in release of Ca2+ and leads to activation of transcription factors and gene expression. Brain PBM therapy enhances the metabolic capacity of neurons and stimulates anti-inflammatory, anti-apoptotic, and antioxidant responses, as well as neurogenesis and synaptogenesis...
January 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29325495/management-of-cancer-associated-venous-thromboembolism-a-case-based-practical-approach
#11
Minna Voigtlaender, Florian Langer
In patients with solid tumours or haematological malignancies, venous thromboembolism (VTE) is a leading cause of death and significantly contributes to morbidity and healthcare resource utilization. Current practice guidelines recommend long-term anticoagulation with low-molecular-weight heparin (LMWH) as the treatment of choice for cancer-associated VTE, based on clinical trial data showing an overall improved safety and efficacy profile of LMWH compared to vitamin K antagonists. However, several open questions remain, e...
January 12, 2018: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/29324562/effectiveness-of-interventions-to-prevent-pre-frailty-and-frailty-progression-in-older-adults-a-systematic-review
#12
João Apóstolo, Richard Cooke, Elzbieta Bobrowicz-Campos, Silvina Santana, Maura Marcucci, Antonio Cano, Miriam Vollenbroek-Hutten, Federico Germini, Barbara D'Avanzo, Holly Gwyther, Carol Holland
OBJECTIVE: To summarize the best available evidence regarding the effectiveness of interventions for preventing frailty progression in older adults. INTRODUCTION: Frailty is an age-related state of decreased physiological reserves characterized by an increased risk of poor clinical outcomes. Evidence supporting the malleability of frailty, its prevention and treatment, has been presented. INCLUSION CRITERIA: The review considered studies on older adults aged 65 and over, explicitly identified as pre-frail or frail, who had been undergoing interventions focusing on the prevention of frailty progression...
January 2018: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29324514/anticoagulant-bridge-comparison-in-mechanical-circulatory-support-patients
#13
Richard H Cosgrove, Robyn L Basken, Richard G Smith, Chiu-Hsieh Hsu, Toshinobu Kazui, Brandon K Martinez, Richard W Burt, Eric S Crawford, Scott D Lick, Zain Khalpey
Maintaining mechanical circulatory support (MCS) device patients in a specified therapeutic range for anticoagulation remains challenging. Subtherapeutic international normalized ratios (INRs) occur frequently while on warfarin therapy. An effective anticoagulant bridge strategy may improve the care of these patients. This retrospective review of MCS patients with subtherapeutic INRs compared an intravenous unfractionated heparin (UFH) strategy with a subcutaneous enoxaparin or fondaparinux strategy. Native thromboelastography (n-TEG) was used to evaluate anticoagulant effect with coagulation index (CI) as the primary outcome measure...
January 10, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29323892/same-substrate-many-reactions-oxygen-activation-in-flavoenzymes
#14
Elvira Romero, J Rubén Gómez Castellanos, Giovanni Gadda, Marco W Fraaije, Andrea Mattevi
Over time, organisms have evolved strategies to cope with the abundance of dioxygen on Earth. Oxygen-utilizing enzymes tightly control the reactions involving O2 mostly by modulating the reactivity of their cofactors. Flavins are extremely versatile cofactors that are capable of undergoing redox reactions by accepting either one electron or two electrons, alternating between the oxidized and the reduced states. The physical and chemical principles of flavin-based chemistry have been investigated widely. In the following pages we summarize the state of the art on a key area of research in flavin enzymology: the molecular basis for the activation of O2 by flavin-dependent oxidases and monooxygenases...
January 11, 2018: Chemical Reviews
https://www.readbyqxmd.com/read/29323611/harm-minimization-and-tobacco-control-reframing-societal-views-of-nicotine-use-to-rapidly-save-lives
#15
David B Abrams, Allison M Glasser, Jennifer L Pearson, Andrea C Villanti, Lauren K Collins, Raymond S Niaura
Inhalation of the toxic smoke produced by combusting tobacco products, primarily cigarettes, is the overwhelming cause of tobacco-related disease and death in the United States and globally. A diverse class of alternative nicotine delivery systems (ANDS) has recently been developed that do not combust tobacco and are substantially less harmful than cigarettes. ANDS have the potential to disrupt the 120-year dominance of the cigarette and challenge the field on how the tobacco pandemic could be reversed if nicotine is decoupled from lethal inhaled smoke...
January 11, 2018: Annual Review of Public Health
https://www.readbyqxmd.com/read/29322934/computational-analysis-reveals-the-coupling-between-bistability-and-the-sign-of-a-feedback-loop-in-a-tgf-%C3%AE-1-activation-model
#16
Huipeng Li, Lakshmi Venkatraman, Balakrishnan Chakrapani Narmada, Jacob K White, Hanry Yu, Lisa Tucker-Kellogg
BACKGROUND: Bistable behaviors are prevalent in cell signaling and can be modeled by ordinary differential equations (ODEs) with kinetic parameters. A bistable switch has recently been found to regulate the activation of transforming growth factor-β1 (TGF-β1) in the context of liver fibrosis, and an ordinary differential equation (ODE) model was published showing that the net activation of TGF-β1 depends on the balance between two antagonistic sub-pathways. RESULTS: Through modeling the effects of perturbations that affect both sub-pathways, we revealed that bistability is coupled with the signs of feedback loops in the model...
December 21, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/29322925/subtype-identification-from-heterogeneous-tcga-datasets-on-a-genomic-scale-by-multi-view-clustering-with-enhanced-consensus
#17
Menglan Cai, Limin Li
BACKGROUND: The Cancer Genome Atlas (TCGA) has collected transcriptome, genome and epigenome information for over 20 cancers from thousands of patients. The availability of these diverse data types makes it necessary to combine these data to capture the heterogeneity of biological processes and phenotypes and further identify homogeneous subtypes for cancers such as breast cancer. Many multi-view clustering approaches are proposed to discover clusters across different data types. The problem is challenging when different data types show poor agreement of clustering structure...
December 21, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/29322560/fast-nonlinear-susceptibility-inversion-with-variational-regularization
#18
Carlos Milovic, Berkin Bilgic, Bo Zhao, Julio Acosta-Cabronero, Cristian Tejos
PURPOSE: Quantitative susceptibility mapping can be performed through the minimization of a function consisting of data fidelity and regularization terms. For data consistency, a Gaussian-phase noise distribution is often assumed, which breaks down when the signal-to-noise ratio is low. A previously proposed alternative is to use a nonlinear data fidelity term, which reduces streaking artifacts, mitigates noise amplification, and results in more accurate susceptibility estimates. We hereby present a novel algorithm that solves the nonlinear functional while achieving computation speeds comparable to those for a linear formulation...
January 10, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29322476/negative-regulators-of-cell-death-pathways-in-cancer-perspective-on-biomarkers-and-targeted-therapies
#19
REVIEW
Ali Razaghi, Kirsten Heimann, Patrick M Schaeffer, Spencer B Gibson
Cancer is a primary cause of human fatality and conventional cancer therapies, e.g., chemotherapy, are often associated with adverse side-effects, tumor drug-resistance, and recurrence. Molecularly targeted therapy, composed of small-molecule inhibitors and immunotherapy (e.g., monoclonal antibody and cancer vaccines), is a less harmful alternative being more effective against cancer cells whilst preserving healthy tissues. Drug-resistance, however, caused by negative regulation of cell death signaling pathways, is still a challenge...
January 10, 2018: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/29322244/metacontrol-and-body-ownership-divergent-thinking-increases-the-virtual-hand-illusion
#20
Ke Ma, Bernhard Hommel
The virtual hand illusion (VHI) paradigm demonstrates that people tend to perceive agency and bodily ownership for a virtual hand that moves in synchrony with their own movements. Given that this kind of effect can be taken to reflect self-other integration (i.e., the integration of some external, novel event into the representation of oneself), and given that self-other integration has been previously shown to be affected by metacontrol states (biases of information processing towards persistence/selectivity or flexibility/integration), we tested whether the VHI varies in size depending on the metacontrol bias...
January 10, 2018: Psychological Research
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