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https://www.readbyqxmd.com/read/29674994/a-cross-sectional-study-on-cerebral-hemodynamics-after-mild-traumatic-brain-injury-in-a-pediatric-population
#1
Corey M Thibeault, Samuel Thorpe, Michael J O'Brien, Nicolas Canac, Mina Ranjbaran, Ilyas Patanam, Artin Sarraf, James LeVangie, Fabien Scalzo, Seth J Wilk, Ramon Diaz-Arrastia, Robert B Hamilton
The microvasculature is prominently affected by traumatic brain injury (TBI), including mild TBI (concussion). Assessment of cerebral hemodynamics shows promise as biomarkers of TBI, and may help inform development of therapies aimed at promoting neurologic recovery. The objective of this study was to assess the evolution in cerebral hemodynamics observable with transcranial Doppler (TCD) ultrasound in subjects suffering from a concussion at different intervals during recovery. Pediatric subjects between the ages of 14 and 19 years clinically diagnosed with a concussion were observed at different points post-injury...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29674812/effect-of-incorporation-of-zinc-oxide-nanoparticles-on-mechanical-properties-of-conventional-glass-ionomer-cements
#2
Narges Panahandeh, Hassan Torabzadeh, Mohammadamin Aghaee, Elham Hasani, Saeed Safa
Aim: The aim of this study is to investigate the physical properties of conventional and resin-modified glass ionomer cements (GICs) compared to GICs supplemented with zinc oxide (ZnO) nanofiller particles at 5% (w/w). Methods: In this in vitro study, ZnO nanoparticles of different morphologies (nanospherical, nanorod, and nanoflower) were incorporated to glass ionomer powder. The samples were subjected to the flexural strength ( n = 20) and surface hardness test ( n = 12) using a universal testing machine and a Vickers hardness machine, respectively...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29673313/ecological-opportunity-may-facilitate-diversification-in-palearctic-freshwater-organisms-a-case-study-on-hydrobiid-gastropods
#3
Diana Delicado, Torsten Hauffe, Thomas Wilke
BACKGROUND: Differences in species richness among phylogenetic clades are attributed to clade age and/or variation in diversification rates. Access to ecological opportunity may trigger a temporary increase in diversification rates and ecomorphological variation. In addition, lower body temperatures in poikilothermic animals may result in decreasing speciation rates as proposed by the metabolic theory of ecology. For strictly freshwater organisms, environmental gradients within a river continuum, linked to elevation and temperature, might promote access to ecological opportunity and alter metabolic rates, eventually influencing speciation and extinction processes...
April 19, 2018: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29673290/professional-self-concept-and-professional-values-of-senior-students-of-the-nursing-department
#4
Mehtap Çöplü, Pınar Tekinsoy Kartın
AIM: This study was carried out in order to determine professional self-concept and professional values in the students, who were studying in the final year of the nursing department in schools providing undergraduate education in the Inner Anatolia Region. METHOD: This cross-sectional study was conducted on a total of 619 senior students of nursing departments in the Inner Anatolia Region. Data were collected using a Student Information Form, Professional Self-Concept Scale for the Student Nurses, and The Nurses' Professional Values Scale...
January 1, 2018: Nursing Ethics
https://www.readbyqxmd.com/read/29672680/cognitive-correlates-of-%C3%AE-4%C3%AE-2-nicotinic-acetylcholine-receptors-in-mild-alzheimer-s-dementia
#5
Osama Sabri, Philipp M Meyer, Susanne Gräf, Swen Hesse, Stephan Wilke, Georg-Alexander Becker, Michael Rullmann, Marianne Patt, Julia Luthardt, Gudrun Wagenknecht, Alexander Hoepping, Rene Smits, Annegret Franke, Bernhard Sattler, Solveig Tiepolt, Steffen Fischer, Winnie Deuther-Conrad, Ulrich Hegerl, Henryk Barthel, Peter Schönknecht, Peter Brust
In early Alzheimer's dementia, there is a need for PET biomarkers of disease progression with close associations to cognitive dysfunction that may aid to predict further cognitive decline and neurodegeneration. Amyloid biomarkers are not suitable for that purpose. The α4β2 nicotinic acetylcholine receptors (α4β2-nAChRs) are widely abundant in the human brain. As neuromodulators they play an important role in cognitive functions such as attention, learning and memory. Post-mortem studies reported lower expression of α4β2-nAChRs in more advanced Alzheimer's dementia...
April 17, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29672579/is-the-message-getting-through-awareness-and-use-of-the-11-injury-prevention-programme-in-amateur-level-football-clubs
#6
Jan Wilke, Daniel Niederer, Lutz Vogt, Winfried Banzer
A large body of evidence suggests that the 11+ warm-up programme is effective in preventing football-related musculoskeletal injuries. However, despite considerable efforts to promote and disseminate the programme, it is unclear as to whether team head coaches are familiar with the 11+ and how they rate its feasibility. The present study aimed to gather information on awareness and usage among German amateur level football coaches. A questionnaire was administered to 7893 individuals who were in charge of youth and adult non-professional teams...
2018: PloS One
https://www.readbyqxmd.com/read/29666286/viable-but-nonculturable-listeria-monocytogenes-and-salmonella-enterica-serovar-thompson-induced-by-chlorine-stress-remain-infectious
#7
Callum J Highmore, Jennifer C Warner, Steve D Rothwell, Sandra A Wilks, C William Keevil
The microbiological safety of fresh produce is monitored almost exclusively by culture-based detection methods. However, bacterial food-borne pathogens are known to enter a viable-but-nonculturable (VBNC) state in response to environmental stresses such as chlorine, which is commonly used for fresh produce decontamination. Here, complete VBNC induction of green fluorescent protein-tagged Listeria monocytogenes and Salmonella enterica serovar Thompson was achieved by exposure to 12 and 3 ppm chlorine, respectively...
April 17, 2018: MBio
https://www.readbyqxmd.com/read/29663366/a-genomic-copy-number-signature-predicts-radiation-exposure-in-post-chernobyl-breast-cancer
#8
Christina M Wilke, Herbert Braselmann, Julia Hess, Sergiy V Klymenko, Vadim V Chumak, Liubov M Zakhartseva, Elena V Bakhanova, Axel K Walch, Martin Selmansberger, Daniel Samaga, Peter Weber, Ludmila Schneider, Falko Fend, Hans C Bösmüller, Horst Zitzelsberger, Kristian Unger
Breast cancer is the second leading cause of cancer death among women worldwide and besides life-style, age and genetic risk factors, exposure to ionising radiation is known to increase the risk for breast cancer. Further, DNA copy number alterations (CNAs), which can result from radiation-induced double-strand breaks, are frequently occurring in breast cancer cells. We set out to identify a signature of CNAs discriminating breast cancers from radiation-exposed and non-exposed female patients. We analysed resected breast cancer tissues from 68 exposed female Chernobyl clean-up workers and evacuees and 68 matched non-exposed control patients for CNAs by array comparative genomic hybridisation analysis (aCGH)...
April 16, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29661732/mcm-2-expression-differentiates-potentially-malignant-verrucous-lesions-from-oral-carcinomas
#9
Kochli Channappa Niranjan, Niharika Abhay Sarathy, Devendra Alrani
BACKGROUND: Mcm-2 is a biomarker belonging to Mcm family of proteins which has rarely been used in oral potentially malignant and malignant lesions of the verrucous type. The objective of this study is to assess the expression of Mcm-2 in Normal Oral Mucosa (NM), Verrucous Hyperplasia (VH), Verrucous Carcinoma (VC) and Oral Squamous Cell Carcinoma (OSCC) and compare it with the clinicopathological characteristics. METHODOLOGY: A total of 70 formalin fixed paraffin embedded tissue samples (10 cases of Normal Mucosa NM- Group A, 10 cases of Verrucous Hyperplasia- VH without Dysplasia- Group B, 10 cases of Verrucous Hyperplasia- VH with Dysplasia- Group C, 20 cases of Verrucous Carcinoma VC-Group D, 20 cases of Oral Squamous Cell Carcinoma OSCC- Group E) were subjected to immunohistochemistry with Mcm-2 antibody...
March 13, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29657525/effect-of-different-surface-finishing-polishing-procedures-on-color-stability-of-esthetic-restorative-materials-a-spectrophotometric-evaluation
#10
Riccardo Beltrami, Matteo Ceci, Gabriele De Pani, Lodovico Vialba, Ricaldone Federico, Claudio Poggio, Marco Colombo
Objective: To evaluate the color stability of different esthetic restorative materials after surface finishing/polishing with different procedures. Materials and Methods: All materials were polymerized into silicone rubber rings to obtain specimens identical in size. Samples were randomly assigned into four groups (10 specimens of each composite for each group), and they were finished with different procedures: Control group (Group 1), three or two polishers interspersed with diamond grit (Groups 3 and 2, respectively), and one tungsten carbide bur + one polisher interspersed with diamond grit (Group 4)...
January 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/29652856/temperature-effects-explain-continental-scale-distribution-of-cyanobacterial-toxins
#11
Evanthia Mantzouki, Miquel Lürling, Jutta Fastner, Lisette de Senerpont Domis, Elzbieta Wilk-Wo Zniak
Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale...
April 13, 2018: Toxins
https://www.readbyqxmd.com/read/29650982/a-hyphenated-preconcentrator-infrared-hollow-waveguide-sensor-system-for-n-2-o-sensing
#12
João Flavio da Silveira Petruci, Andreas Wilk, Arnaldo Alves Cardoso, Boris Mizaikoff
Following the Kyoto protocol, all signatory countries must provide an annual inventory of greenhouse-gas emission including N2 O. This fact associated with the wide variety of sources for N2 O emissions requires appropriate sensor technologies facilitating in-situ monitoring, compact dimensions, ease of operation, and sufficient sensitivity for addressing such emission scenarios. In this contribution, we therefore describe an innovative portable mid-infrared chemical sensor system for quantifying gaseous N2 O via coupling a substrate-integrated hollow waveguide (iHWG) simultaneously serving as highly miniaturized mid-infrared photon conduit and gas cell to a custom-made preconcentrator...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29649707/specific-smartphone-usage-and-cognitive-performance-affect-gait-characteristics-during-free-living-and-treadmill-walking
#13
Daniel Niederer, Anke Bumann, Yvonne Mühlhauser, Mareike Schmitt, Katja Wess, Tobias Engeroff, Jan Wilke, Lutz Vogt, Winfried Banzer
BACKGROUND: Mobile phone tasks like texting, typing, and dialling during walking are known to impact gait characteristics. Beyond that, the effects of performing smartphone-typical actions like researching and taking self-portraits (selfie) on gait have not been investigated yet. RESEARCH QUESTION: We aimed to investigate the effects of smartphone usage on relevant gait characteristics and to reveal potential association of basic cognitive and walking plus smartphone dual-task abilities...
April 6, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29644105/drawing-method-can-improve-musculoskeletal-anatomy-comprehension-in-medical-faculty-student
#14
Muliani Joewono, I Nyoman Mangku Karmaya, Gede Wirata, Yuliana, I Gusti Ayu Widianti, I Nyoman Gede Wardana
The Chinese philosophy of Confucianism said "What I heard I forgot, what I see, I remember, what I do, I understand." During this time, most of the teaching and learning process relies on viewing and listening modalities only. As a result, much information does not last long in memory as well as the material understanding achieves became less deep. In studying anatomy science, drawing is one of effective important methods because it is an integration of ideas and knowledge of vision thereby increasing comprehension and learning motivation of college students...
March 2018: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/29628301/functional-outcomes-assessment-following-free-muscle-transfer-for-dynamic-reconstruction-of-facial-paralysis-a-literature-review
#15
REVIEW
Anson Dong, Kevin J Zuo, Georgina Papadopoulos-Nydam, Jaret L Olson, Gordon H Wilkes, Jana Rieger
Facial reanimation provides patients affected by chronic facial paralysis a chance to regain basic human functions such as emotional expression, verbal communication, and oral competence for eating and swallowing, but there is still no consensus as to the best way to measure surgical outcomes. We performed a literature review to investigate the different functional outcomes that surgeons use to evaluate facial function after reanimation surgery, focusing on outcomes other than facial expressions such as speech, oral competence, and patient quality of life/satisfaction...
March 22, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29627207/comparison-of-clinical-and-electromyographic-rest-vertical-dimensions-in-dolichofacial-and-brachyfacial-young-adults-a-cross-sectional-study
#16
Arturo Manns, Catalina Valdivieso, Victor Rojas, Constanza Valdés, Valeria Ramírez
STATEMENT OF PROBLEM: Therapeutic procedures that increase occlusal vertical dimension (OVD) may have different responses in patients with different craniofacial vertical patterns. The effect on these patients of increasing their OVD is not well understood. PURPOSE: The purpose of this clinical study was to compare measurements of vertical jaw separation (VJS) in patients with brachyfacial and dolichofacial craniofacial patterns in 2 vertical dimensions: the clinical rest/postural vertical dimension (CR/PVD) and electromyographic rest vertical dimension (EMGRVD)...
April 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29626260/clinical-utility-of-pharmacogenetic-testing-in-children-and-adolescents-with-severe-mental-disorders
#17
Hilario Blasco-Fontecilla
This is a retrospective cohort study of 20 children and adolescents to evaluate the clinical utility of a pharmacogenetic decision support tool. Twenty children and adolescents underwent pharmacogenetic testing between June 2014 and May 2017. All children and adolescents were evaluated at Puerta de Hierro University Hospital-Majadahonda (Madrid, Spain). We report the proportion of patients achieving clinical improvement, amelioration of side effects, and changes in number of drugs. Data normality was assessed with the Shapiro-Wilk test, and changes of pre- and post-pharmacogenetic testing were analyzed with the Wilcoxon test for paired samples...
April 6, 2018: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29626197/proteomic-and-genomic-integration-identifies-kinase-and-differentiation-determinants-of-kinase-inhibitor-sensitivity-in-leukemia-cells
#18
Pedro Casado, Edmund H Wilkes, Farideh Miraki-Moud, Marym Mohammad Hadi, Ana Rio-Machin, Vinothini Rajeeve, Rebecca Pike, Sameena Iqbal, Santiago Marfa, Nicholas Lea, Steven Best, John Gribben, Jude Fitzgibbon, Pedro R Cutillas
No abstract text is available yet for this article.
April 7, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29625857/decrease-of-premature-mothers-stress-levels-in-the-intensive-care-unit
#19
B Villamizar-Carvajal, C Vargas-Porras, J R García-Corzo
OBJECTIVE: To determine the effectiveness of the 'Creating Opportunities for Parent Empowerment' (COPE) programme in reducing stress levels in mothers of preterm infants in the neonatal intensive care unit (NICU). METHODS: Clinical trial performed in Colombia, including mothers of infants younger than 34 weeks of gestation, hospitalized, without a history of premature delivery. The mothers with psychiatric illnesses, language disorders, history of use of psychoactive substances and whose newborns had a congenital malformation were excluded...
April 3, 2018: Enfermería Intensiva
https://www.readbyqxmd.com/read/29623812/the-efficacy-of-the-ankle-mimicking-prosthetic-foot-prototype-4-0-during-walking-physiological-determinants
#20
Kevin De Pauw, Pierre Cherelle, Bart Roelands, Dirk Lefeber, Romain Meeusen
BACKGROUND: Evaluating the effectiveness of a novel prosthetic device during walking is an important step in product development. OBJECTIVE: To investigate the efficacy of a novel quasi-passive ankle prosthetic device, Ankle Mimicking Prosthetic Foot 4.0, during walking at different speeds, using physiological determinants in transtibial and transfemoral amputees. STUDY DESIGN: Nonrandomized crossover design for amputees. METHODS: Six able-bodied subjects, six unilateral transtibial amputees, and six unilateral transfemoral amputees underwent a 6-min walk test at normal speed, followed by series of 2-min walking at slow, normal, and fast speeds...
April 1, 2018: Prosthetics and Orthotics International
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