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https://www.readbyqxmd.com/read/28319206/bone-quality-and-quantity-and-dental-implant-failure-a-systematic-review-and-meta-analysis
#1
Bruno Ramos Chrcanovic, Tomas Albrektsson, Ann Wennerberg
PURPOSE: The aim of this study was to test the null hypothesis that there is no difference in implant failure rates, marginal bone loss, and postoperative infection for implants inserted in bone with different qualities and quantities according to the classification of Lekholm and Zarb. MATERIALS AND METHODS: An electronic search was undertaken in January 2015 for randomized and nonrandomized human clinical studies. RESULTS: A total of 94 publications were included...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28318369/high-rate-of-hepatitis-b-virus-infection-among-hairdressers-in-ibadan-nigeria
#2
B A Olusola, E A Gometi, O Ogunsemowo, D O Olaleye, G N Odaibo
Hepatitis B virus (HBV) infection is a major public health problem with over two billion people infected globally. Occupationally exposed persons are at high risk of HBV infection. Apart from medical personnel, there is dearth of information as regards the prevalence and awareness of HBV among occupationally exposed persons in the country. This study was designed to determine the levels of HBV awareness and prevalence of HBV infection among hairdressers in Ibadan, Nigeria. Hairdressers and teachers (unmatched controls) in four local government areas in Ibadan were tested for HBV infection using ELISA technique...
March 20, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28317230/cortical-surface-based-threshold-free-cluster-enhancement-and-cortexwise-mediation
#3
Tristram A Lett, Lea Waller, Heike Tost, Ilya M Veer, Arash Nazeri, Susanne Erk, Eva J Brandl, Katrin Charlet, Anne Beck, Sabine Vollstädt-Klein, Anne Jorde, Falk Kiefer, Andreas Heinz, Andreas Meyer-Lindenberg, M Mallar Chakravarty, Henrik Walter
Threshold-free cluster enhancement (TFCE) is a sensitive means to incorporate spatial neighborhood information in neuroimaging studies without using arbitrary thresholds. The majority of methods have applied TFCE to voxelwise data. The need to understand the relationship among multiple variables and imaging modalities has become critical. We propose a new method of applying TFCE to vertexwise statistical images as well as cortexwise (either voxel- or vertexwise) mediation analysis. Here we present TFCE_mediation, a toolbox that can be used for cortexwise multiple regression analysis with TFCE, and additionally cortexwise mediation using TFCE...
March 20, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28316051/pathogenic-multiple-antimicrobial-resistant-escherichia-coli-serotypes-in-recreational-waters-of-mumbai-india-a-potential-public-health-risk
#4
Aayushi Maloo, Abhay B Fulke, Najmuddin Mulani, Soniya Sukumaran, Anirudh Ram
Globally, coastal waters have emerged into a pool of antibiotic resistance genes and multiple antibiotic resistant microorganisms, and pathogenicity of these resistant microorganisms in terms of serotypes and virulence genes has made the environment vulnerable. The current study underscores the presence of multiple antibiotic resistant pathogenic serotypes and pathotypes of Escherichia coli, the predominant faecal indicator bacteria (FIB), in surface water and sediment samples of famous recreational beaches (Juhu, Versova, Mahim, Dadar, and Girgaon) of Mumbai...
March 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28315754/hepatitis-b-and-htlv-1-co-infection-in-the-northern-territory-australia
#5
Ian Marr, Jane Davies, Rob W Baird
OBJECTIVE: To establish the relationship of Hepatitis B and HTLV-1 serological markers in the Northern Territory, Australia. METHODS: A retrospective serological study of patients, presenting to public healthcare facilities, in the Northern Territory between 2008 and 2015, was performed to determine presence and relationships of serological markers of Hepatitis B virus (HBV), and Human T-cell Leukemic virus 1 (HTLV-1). RESULTS: There were 740 individual cases of serological positive HTLV-1 identified over 8 years in the Northern Territory...
March 15, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28314921/comparative-genomics-analysis-of-five-psychrobacter-strains-isolated-from-world-wide-habitats-reveal-high-intra-genus-variations
#6
Shan Zhang, Weizhi Song, Min Yu, Xuezheng Lin
Psychrobacter has been regarded as an important genus for bacterial cold adaptation studies. However, members of this genus are highly varied in terms of both cold adaptability and genome content. To get an understanding of the diversity of members of this genus, five Psychrobacter strains (G, K5, 273-4, PAMC21119 and PRwf-1), with publicly available complete/draft genome, were selected and comprehensive comparative genomics analyses were performed among them. The closest phylogenetic relationship, highest average nucleotide identity (96...
March 17, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28304385/local-ocular-surface-parameters-in-patients-with-systemic-celiac-disease
#7
M M Uzel, M Citirik, M Kekilli, P Cicek
PurposeThis was a collaborative study from the Ophthalmology and Gastroenterology departments of a tertiary care hospital, designed to investigate the local ocular surface parameters in patients with celiac disease (CD).MethodsFifty-six eyes of 28 patients with CD and 58 eyes of 29 healthy adult subjects serving as controls were evaluated. The Schirmer test, tear-film break-up time, and conjunctival impression cytology were performed in addition to a complete ophthalmological examination. Impression cytology specimens of each group were graded and scored in the range 0-3...
March 17, 2017: Eye
https://www.readbyqxmd.com/read/28303391/transcriptional-sequencing-and-analysis-of-major-genes-involved-in-the-adventitious-root-formation-of-mango-cotyledon-segments
#8
Yun-He Li, Hong-Na Zhang, Qing-Song Wu, Gloria K Muday
A total of 74,745 unigenes were generated and 1975 DEGs were identified. Candidate genes that may be involved in the adventitious root formation of mango cotyledon segment were revealed. Adventitious root formation is a crucial step in plant vegetative propagation, but the molecular mechanism of adventitious root formation remains unclear. Adventitious roots formed only at the proximal cut surface (PCS) of mango cotyledon segments, whereas no roots were formed on the opposite, distal cut surface (DCS). To identify the transcript abundance changes linked to adventitious root development, RNA was isolated from PCS and DCS at 0, 4 and 7 days after culture, respectively...
March 16, 2017: Planta
https://www.readbyqxmd.com/read/28301761/reaction-mechanisms-on-multiwell-potential-energy-surfaces-in-combustion-and-atmospheric-chemistry
#9
David L Osborn
Chemical reactions occurring on a potential energy surface with multiple wells are ubiquitous in low-temperature combustion and in the oxidation of volatile organic compounds in Earth's atmosphere. The rich variety of structural isomerizations that compete with collisional stabilization makes characterizing such complex-forming reactions challenging. This review describes recent experimental and theoretical advances that deliver increasingly complete views of their reaction mechanisms. New methods for creating reactive intermediates coupled with multiplexed measurements provide many experimental observables simultaneously...
March 15, 2017: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/28301760/metal-free-motifs-for-solar-fuel-applications
#10
Stefan Ilic, Marija R Zoric, Usha Pandey Kadel, Yunjing Huang, Ksenija D Glusac
Metal-free motifs, such as graphitic carbon nitride, conjugated polymers, and doped nanostructures, are emerging as a new class of Earth-abundant materials for solar fuel devices. Although these metal-free structures show great potential, detailed mechanistic understanding of their performance remains limited. Here, we review important experimental and theoretical findings relevant to the role of metal-free motifs as either photoelectrodes or electrocatalysts. First, the light-harvesting characteristics of metal-free photoelectrodes (band energetics, exciton binding energies, charge carrier mobilities and lifetimes) are discussed and contrasted with those in traditional inorganic semiconductors (such as Si)...
March 15, 2017: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/28301759/ice-surfaces
#11
Mary Jane Shultz
Ice is a fundamental solid with important environmental, biological, geological, and extraterrestrial impact. The stable form of ice at atmospheric pressure is hexagonal ice, Ih Despite its prevalence, Ih remains an enigmatic solid, in part due to challenges in preparing samples for fundamental studies. Surfaces of ice present even greater challenges. Recently developed methods for preparation of large single-crystal samples make it possible to reproducibly prepare any chosen face to address numerous fundamental questions...
March 15, 2017: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/28301756/hot-charge-carrier-transmission-from-plasmonic-nanostructures
#12
Phillip Christopher, Martin Moskovits
Surface plasmons have recently been harnessed to carry out processes such as photovoltaic current generation, redox photochemistry, photocatalysis, and photodetection, all of which are enabled by separating energetic (hot) electrons and holes-processes that, previously, were the domain of semiconductor junctions. Currently, the power conversion efficiencies of systems using plasmon excitation are low. However, the very large electron/hole per photon quantum efficiencies observed for plasmonic devices fan the hope of future improvements through a deeper understanding of the processes involved and through better device engineering, especially of critical interfaces such as those between metallic and semiconducting nanophases (or adsorbed molecules)...
March 16, 2017: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/28301755/computational-analysis-of-vibrational-sum-frequency-generation-spectroscopy
#13
Tatsuya Ishiyama, Akihiro Morita
Vibrational sum frequency generation (VSFG) spectroscopy is a widely used probe of interfaces and, having ideal surface sensitivity and selectivity, is particularly powerful when applied to wet and soft interfaces. Although VSFG spectroscopy can sensitively detect molecular details of interfaces, interpretation of observed spectra has, until recently, been challenging and often ambiguous. The situation has been greatly improved by remarkable advances in computational VSFG analysis on the basis of molecular modeling and molecular dynamics simulation...
March 16, 2017: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/28301754/bioanalytical-measurements-enabled-by-surface-enhanced-raman-scattering-sers-probes
#14
Lauren E Jamieson, Steven M Asiala, Kirsten Gracie, Karen Faulds, Duncan Graham
Since its discovery in 1974, surface-enhanced Raman scattering (SERS) has gained momentum as an important tool in analytical chemistry. SERS is used widely for analysis of biological samples, ranging from in vitro cell culture models, ex vivo tissue and blood samples, and direct in vivo application. New insights have been gained into biochemistry, with an emphasis on biomolecule detection, from small molecules such as glucose and amino acids to larger biomolecules such as DNA, proteins, and lipids. These measurements have increased our understanding of biological systems, and significantly, they have improved diagnostic capabilities...
February 23, 2017: Annual Review of Analytical Chemistry
https://www.readbyqxmd.com/read/28301746/raman-imaging-in-cell-membranes-lipid-rich-organelles-and-lipid-bilayers
#15
Aleem Syed, Emily A Smith
Raman-based optical imaging is a promising analytical tool for noninvasive, label-free chemical imaging of lipid bilayers and cellular membranes. Imaging using spontaneous Raman scattering suffers from a low intensity that hinders its use in some cellular applications. However, developments in coherent Raman imaging, surface-enhanced Raman imaging, and tip-enhanced Raman imaging have enabled video-rate imaging, excellent detection limits, and nanometer spatial resolution, respectively. After a brief introduction to these commonly used Raman imaging techniques for cell membrane studies, this review discusses selected applications of these modalities for chemical imaging of membrane proteins and lipids...
March 15, 2017: Annual Review of Analytical Chemistry
https://www.readbyqxmd.com/read/28301745/applications-of-surface-second-harmonic-generation-in-biological-sensing
#16
Renee J Tran, Krystal L Sly, John C Conboy
Surface second harmonic generation (SHG) is a coherent, nonlinear optical technique that is well suited for investigations of biomolecular interactions at interfaces. SHG is surface specific due to the intrinsic symmetry constraints on the nonlinear process, providing a distinct analytical advantage over linear spectroscopic methods, such as fluorescence and UV-Visible absorbance spectroscopies. SHG has the ability to detect low concentrations of analytes, such as proteins, peptides, and small molecules, due to its high sensitivity, and the second harmonic response can be enhanced through the use of target molecules that are resonant with the incident (ω) and/or second harmonic (2ω) frequencies...
March 16, 2017: Annual Review of Analytical Chemistry
https://www.readbyqxmd.com/read/28301459/blepharocheilodontic-syndrome-is-a-cdh1-pathway-related-disorder-due-to-mutations-in-cdh1-and-ctnnd1
#17
Jamal Ghoumid, Morgane Stichelbout, Anne-Sophie Jourdain, Frederic Frenois, Sophie Lejeune-Dumoulin, Marie-Pierre Alex-Cordier, Marine Lebrun, Pierre Guerreschi, Veronique Duquennoy-Martinot, Matthieu Vinchon, Joel Ferri, Matthieu Jung, Serge Vicaire, Clemence Vanlerberghe, Fabienne Escande, Florence Petit, Sylvie Manouvrier-Hanu
PURPOSE: Blepharocheilodontic (BCD) syndrome is a rare autosomal dominant condition characterized by eyelid malformations, cleft lip/palate, and ectodermal dysplasia. The molecular basis of BCD syndrome remains unknown. METHODS: We recruited 11 patients from 8 families and performed exome sequencing for 5 families with de novo BCD syndrome cases and targeted Sanger sequencing in the 3 remaining families. RESULTS: We identified five CDH1 heterozygous missense mutations and three CTNND1 heterozygous truncating mutations leading to loss-of-function or haploinsufficiency...
March 16, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28299337/effect-of-zirconia-dental-implant-surfaces-on-bone-integration-a-systematic-review-and-meta-analysis
#18
REVIEW
Ali Hafezeqoran, Roodabeh Koodaryan
Background. The information available about osseointegration and the bone to implant interaction of zirconia implants with various surface modifications is still far from sufficient. Objective. The purpose of this systematic review and meta-analysis was to evaluate and compare zirconia dental implants with different surface topographies, with a focus on bone to implant contact and removal torque. Methods. The systematic review of the extracted publications was performed to compare the bone to implant contact (BIC) with removal torque (RT) values of titanium dental implants and machined and surfaced modified zirconia implants...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28299244/large-scale-health-information-database-and-privacy-protection
#19
Ryuichi Yamamoto
Japan was once progressive in the digitalization of healthcare fields but unfortunately has fallen behind in terms of the secondary use of data for public interest. There has recently been a trend to establish large-scale health databases in the nation, and a conflict between data use for public interest and privacy protection has surfaced as this trend has progressed. Databases for health insurance claims or for specific health checkups and guidance services were created according to the law that aims to ensure healthcare for the elderly; however, there is no mention in the act about using these databases for public interest in general...
September 2016: Japan Medical Association Journal: JMAJ
https://www.readbyqxmd.com/read/28295619/topical-corticosteroids-application-in-the-evening-is-more-effective-than-in-the-morning-in-psoriasis-in-reply
#20
Sophie Nguyen, Jean-Philippe Lacour, Thierry Passeron
On behalf of all coauthors, we would like to thank Dr Gu and Dr Mi for their interest in our publication [1]. We acknowledge that a given number of finger-tip units according to the body surface area (BSA) is more precise than a number of tubes of corticosteroids according to BSA as we used in our study. However, the mean BSA was 1.91 in group A and 1.96 in group B and the total quantity of corticosteroids tubes used in the two groups was not statistically different (p=0.197). This article is protected by copyright...
March 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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