Log in to search using one of your social media accounts:


Ocular Biometry in Primary Angle-Closure Glaucoma Associated with Retinitis Pigmentosa.
Authors: Xu J, Ouyang Z, Yang Y, Cai X, Wang Z, Lin M, Zhang X, Liu X, Yu M Abstract Background: Retinitis pigmentosa (RP) comprises a group of inherited disorders in which patients typically lose night vision in adolescence and then lose peripheral vision in young adulthood before eventually losing central vision later in life. A retrospective case-control study was performed to evaluate differences in ocular biometric parameters in primary angle-closure glaucoma (PACG) patients with and without concomitant RP to determine whether a relationship exists between PACG and RP. Methods: We used ultrasound biomicros...
Source: Journal of Ophthalmology - February 24, 2018 Category: Opthalmology Tags: J Ophthalmol Source Type: research

Generating standardized image data for testing and calibrating quantification of volumes, surfaces, lengths, and object counts in fibrous and porous materials using X ‐ray microtomography
Abstract Quantification of the structure and composition of biomaterials using micro‐CT requires image segmentation due to the low contrast and overlapping radioopacity of biological materials. The amount of bias introduced by segmentation procedures is generally unknown. We aim to develop software that generates three‐dimensional models of fibrous and porous structures with known volumes, surfaces, lengths, and object counts in fibrous materials and to provide a software tool that calibrates quantitative micro‐CT assessments. Virtual image stacks were generated using the newly developed software TeIGen, enabling the...
Source: Microscopy Research and Technique - February 24, 2018 Category: Laboratory Medicine Authors: Miroslav Ji řík, Martin Bartoš, Petr Tomášek, Anna Malečková, Tomáš Kural, Jana Horáková, David Lukáš, Tomáš Suchý, Petra Kochová, Marie Hubálek Kalbáčová, Milena Králíčková, Zbyněk Tonar Tags: RESEARCH ARTICLE Source Type: research

An Inverse U-Shaped Curve of Resting-State Networks in Individuals at High Risk of Alzheimer's Disease.
CONCLUSIONS: Higher resting-state FC is followed by a decline in subjects at AD risk, and this inverse U-shaped trajectory is more notable in subjects with higher risk. PMID: 29474008 [PubMed - as supplied by publisher] (Source: Journal of Clinical Psychiatry)
Source: Journal of Clinical Psychiatry - February 24, 2018 Category: Psychiatry Tags: J Clin Psychiatry Source Type: research

Setting the IMPACT (IMProve Access to Clinical Trial data) Observatory baseline.
Conclusions: Our findings indicate that the year 2000 could be used as a baseline for monitoring the evolution of CT data sharing as basic prerequisites were set in place, including greater understanding that CT data sharing is essential for decision making and the advancements of the Internet. PMID: 29472799 [PubMed - in process] (Source: Biochemia Medica)
Source: Biochemia Medica - February 24, 2018 Category: Biochemistry Tags: Biochem Med (Zagreb) Source Type: research

Normal Variants and Pitfalls Encountered in PET Assessment of Gynecologic Malignancies
This article reviews normal variants and potential pitfalls encountered in PET assessment of gynecologic malignancies to provide useful information for the referring and reporting physicians. (Source: PET Clinics)
Source: PET Clinics - February 24, 2018 Category: Radiology Authors: Jian Q. Yu, Mohan Doss, R. Katherine Alpaugh Source Type: research

Multiparameter estimation using multi ‐echo spoiled gradient echo with variable flip angles and multicontrast compressed sensing
ConclusionThe results showed that accurate quantitative mapping of T1, , and proton density fat fraction with a single breath‐hold was achieved using our approach. (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - February 24, 2018 Category: Radiology Authors: Daiki Tamada, Tetsuya Wakayama, Hiroshi Onishi, Utaroh Motosugi Tags: FULL PAPER Source Type: research

Sildenafil in Left Ventricular Assist Device Is Safe and Well-Tolerated
Right heart failure is a potentially devastating complication of mechanical circulatory support, occurring at a rate of 0.49 events per 100 patient-months.1 Pulmonary vasodilators such as phosphodiesterase-5 inhibitors (PDE5i) have been frequently used to unload the right ventricle in left ventricular assist device (LVAD) patients, but there is scant evidence to support this practice.2,3 The purpose of this analysis is to provide additional data regarding the safety and efficacy of the PDE5i sildenafil in a real world population of patients supported with LVADs at Washington University in St. Louis. Sildenafil use was not ...
Source: ASAIO Journal - February 24, 2018 Category: Medical Devices Tags: Brief Communication Source Type: research

Natural Compounds for Skin Tissue Engineering by Electrospinning of Nylon-Beta Vulgaris
Natural compounds containing polysaccharide ingredients have been employed as candidates for treatment of skin tissue. Herein, for the first time, electrospinning setup was proposed to fabricate an efficient composite nanofibrous structure of Beta vulgaris (obtained from Beet [Chenopodiaceae or Amaranthaceae]) belonged to polysaccharides and an elastic polymer named nylon 66 for skin tissue engineering. Both prepared scaffolds including noncomposite and composite types were studied by Scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscopy, mechanical assay, and contact angle. Scanning electron m...
Source: ASAIO Journal - February 24, 2018 Category: Medical Devices Tags: Tissue Engineering/Biomaterials Source Type: research

18F-FDG PET/CT in the Diagnosis and Management of Continuous Flow Left Ventricular Assist Device Infections: A Case Series and Review of the Literature
Implantable continuous flow left ventricular assist devices (LVADs) are increasingly used in end-stage heart failure treatment as a bridge-to-transplant and destination therapy (DT). However, LVADs still have major drawbacks, such as infections that can cause morbidity and mortality. Unfortunately, appropriate diagnosis of LVAD-related and LVAD-specific infections can be very cumbersome. The differentiation between deep and superficial infections is crucial in clinical decision-making. Despite a decade of experience in using fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) to diagnose va...
Source: ASAIO Journal - February 24, 2018 Category: Medical Devices Tags: Case Reports Source Type: research

Primary Peritonitis Due to Streptococcus pyogenes: Report of 2 Cases and Review of the 21st-Century Literature
Conclusions Streptococcus pyogenes PP is more common than previously reported, is associated with physical findings of acute abdomen, is usually accompanied by circulatory shock, and is almost always clinically responsive to treatment with operative and antimicrobial agent interventions. (Source: Infectious Diseases in Clinical Practice)
Source: Infectious Diseases in Clinical Practice - February 24, 2018 Category: Infectious Diseases Tags: Review Articles Source Type: research

Effect of metal artifact reduction software on image quality of C-arm cone-beam computed tomography during intracranial aneurysm treatment.
Authors: Enomoto Y, Yamauchi K, Asano T, Otani K, Iwama T Abstract Background and purpose C-arm cone-beam computed tomography (CBCT) has the drawback that image quality is degraded by artifacts caused by implanted metal objects. We evaluated whether metal artifact reduction (MAR) prototype software can improve the subjective image quality of CBCT images of patients with intracranial aneurysms treated with coils or clips. Materials and methods Forty-four patients with intracranial aneurysms implanted with coils (40 patients) or clips (four patients) underwent one CBCT scan from which uncorrected and MAR-corrected CB...
Source: Interventional Neuroradiology - February 24, 2018 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Inflammatory bowel disease and anemia: intravenous iron treatment.
CONCLUSION: Ferric carboxymaltose was found to be an effective and well tolerated treatment for iron deficiency anemia in patients with IBD. The results of our study further strengthen the current knowledge of the effectiveness and safety of the treatment. PMID: 29468908 [PubMed - as supplied by publisher] (Source: Scandinavian Journal of Gastroenterology)
Source: Scandinavian Journal of Gastroenterology - February 24, 2018 Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research

Liver abscess: contemporary presentation and management in a Western population.
CONCLUSION: In a New Zealand setting, LA affect fit patients, and primary abscesses account for almost half of all presentation. PD is effective treatment in most LA although prolonged drainage and treatment with antibiotics may be necessary. PMID: 29470473 [PubMed - in process] (Source: New Zealand Medical Journal)
Source: New Zealand Medical Journal - February 24, 2018 Category: General Medicine Tags: N Z Med J Source Type: research

Expression of Interleukin ‐17 in Primary Sjögren's Syndrome and the Correlation with Disease Severity: A Systematic Review and Meta‐Analysis
In conclusion, the expression of IL‐17 is obviously increased in pSS patients, especially among those without immunosuppressive treatment. In addition, IL‐17 level correlates with the disease severity of pSS. These findings demonstrate the significance of IL‐17 overexpression in pSS patients, and may provide insights for the development of therapeutic interventions targeting IL‐17 for pSS. This article is protected by copyright. All rights reserved. (Source: Scandinavian Journal of Immunology)
Source: Scandinavian Journal of Immunology - February 24, 2018 Category: Allergy & Immunology Authors: Li ‐Wei Zhang, Pei‐Ru Zhou, Pan Wei, Xin Cong, Li‐Ling Wu, Hong Hua Tags: Regular Manuscript Source Type: research

The feasibility of 18 F-FES and 18 F-FDG microPET/CT for early monitoring the effect of fulvestrant on sensitizing docetaxel by downregulating ER α in ERα+ breast cancer
Conclusions18F-FES and18F-FDG PET/CT were feasible for early monitoring the effect of fulvestrant on sensitizing docetaxel by downregulation of ER α in ERα+ breast cancer noninvasively. (Source: Annals of Nuclear Medicine)
Source: Annals of Nuclear Medicine - February 24, 2018 Category: Nuclear Medicine Source Type: research

Identification of binuclear Co2N5 active sites for oxygen reduction reaction with more than one magnitude higher activity than single atom CoN4 site
Publication date: April 2018 Source:Nano Energy, Volume 46 Author(s): Meiling Xiao, Hao Zhang, Yongting Chen, Jianbing Zhu, Liqin Gao, Zhao Jin, Junjie Ge, Zheng Jiang, Shengli Chen, Changpeng Liu, Wei Xing Herein, a novel binuclear active site structure, Co2NxCy, is intentionally designed and successfully fabricated to efficiently catalyze the oxygen reduction reaction (ORR), which is achieved by precisely controlling the atomic scale structure of bimetal-organic frameworks before pyrolysis. Through discovering a two-atom site with Co-Co distance at 2.1–2.2 Å from aberration-corrected scanning transmission ...
Source: Nano Energy - February 24, 2018 Category: Nanotechnology Source Type: research

Highly-efficient reinforcement and flame retardancy of rigid polyurethane foam with phosphorus-containing additive and nitrogen-containing compound
Publication date: 1 June 2018 Source:Materials Chemistry and Physics, Volume 211 Author(s): Yao Yuan, Chao Ma, Yongqian Shi, Lei Song, Yuan Hu, Weizhao Hu Flame retardant rigid polyurethane foam (RPUF) with a reactive melamine-derived polyol (MADP) and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) were fabricated through free-rise technique. The thermal stability and fire behaviors of RPUF were investigated by thermogravimetric analysis (TGA), limiting oxygen index (LOI), and cone calorimeter. In comparison with the results of RPUF and RPUF/MADP, RPUF/MADP-DOPO displayed higher compressive strength, owing to t...
Source: Materials Chemistry and Physics - February 24, 2018 Category: Materials Science Source Type: research

Quantitative determination of size and properties of interphase in carbon nanotube based multiscale composites
Publication date: June 2018 Source:Carbon, Volume 132 Author(s): Harpreet S. Bedi, Mayank Tiwari, Prabhat K. Agnihotri Experimental investigations are carried out to quantify the effect of filler composition, filler diameter and carbon nanotube (CNT) grafting on the properties of interphase in epoxy matrix composites. To this end, epoxy is reinforced with stainless steel (SS) wire, brass wire(s) and carbon fiber (CF) before and after CNT growth on their surface. Surface morphology, elemental composition and thickness of interphase in unsized (ar) and CNT grafted composites is studied using scanning electron microscopy (SE...
Source: Carbon - February 24, 2018 Category: Materials Science Source Type: research

Investigation on the Effect of Grit size on Two Body Abrasive Wear Behavior of Polyamide66/Polypropylene (PA66/PP) blends
Publication date: 2018 Source:Materials Today: Proceedings, Volume 5, Issue 1, Part 3 Author(s): B.V. Lingesh, B.N. Ravikumar, B.M. Rudresh The effect of grit size on two body abrasive wear behaviour of Polyamide66 and Polypropylene (PA66/PP) blends of 95/5, 90/10, 85/15, 80/20, 75/25 and 70/30 wt.% are investigated as per ASTM G99 by using pin on disc machine. The test were conducted for a load of 10N at a velocity of 1 m/s using abrasive SiC paper (180, 320 and 600 grit) in multi pass condition. The results revealed that the wear volume and specific wear rate are the function of abrading distance, grit size and composit...
Source: Materials Today: Proceedings - February 24, 2018 Category: Materials Science Source Type: research

Investigation on Three body Abrasive Wear Behavior of Polyamide66 / Polytetrafluroethylene(PA66/PTFE) Blends
Publication date: 2018 Source:Materials Today: Proceedings, Volume 5, Issue 1, Part 3 Author(s): B.M. Rudresh, B.N. Ravikumar The three body abrasive wear behaviour of Polyamide66 and Polytetrafluroethylene blends (PA66/PTFE) in 95/5, 90/10, 85/15, 80/20, 75/25 and 70/30 wt.%were investigated as per ASTM G65 by using Rubber wheel abrasion tester (RWAT). The test were conducted for a load of 50N and 75N at a velocity of 2.5m/s using fine abrasive dry sand particles and rubber wheel with a abrading distance of 500 m through 1500 m. The results revealed that the wear volume and the specific wear rate are the functions of abr...
Source: Materials Today: Proceedings - February 24, 2018 Category: Materials Science Source Type: research

Impact of time-of-day on diffusivity measures of brain tissue derived from diffusion tensor imaging
Publication date: June 2018 Source:NeuroImage, Volume 173 Author(s): Cibu Thomas, Neda Sadeghi, Amrita Nayak, Aaron Trefler, Joelle Sarlls, Chris I. Baker, Carlo Pierpaoli Diurnal fluctuations in MRI measures of structural and functional properties of the brain have been reported recently. These fluctuations may have a physiological origin, since they have been detected using different MRI modalities, and cannot be explained by factors that are typically known to confound MRI measures. While preliminary evidence suggests that measures of structural properties of the brain based on diffusion tensor imaging (DTI) fluctuate ...
Source: NeuroImage - February 24, 2018 Category: Neuroscience Source Type: research

Sensors, Vol. 18, Pages 672: An Automatic and Novel SAR Image Registration Algorithm: A Case Study of the Chinese GF-3 Satellite
n You The Chinese GF-3 satellite launched in August 2016 is a Synthetic Aperture Radar (SAR) satellite that has the largest number of imaging modes in the world. It achieves a free switch in the spotlight, stripmap, scanSAR, wave, global observation and other imaging modes. In order to further utilize GF-3 SAR images, an automatic and fast image registration procedure needs to be done. In this paper, we propose a novel image registration technique for GF-3 images of different imaging modes. The proposed algorithm consists of two stages: coarse registration and fine registration. In the first stage, we combine an adapti...
Source: Sensors - February 24, 2018 Category: Biotechnology Authors: Yuming Xiang Feng Wang Hongjian You Tags: Article Source Type: research

Sensors, Vol. 18, Pages 665: High-Speed Interrogation for Large-Scale Fiber Bragg Grating Sensing
Bai A high-speed interrogation scheme for large-scale fiber Bragg grating (FBG) sensing arrays is presented. This technique employs parallel computing and pipeline control to modulate incident light and demodulate the reflected sensing signal. One Electro-optic modulator (EOM) and one semiconductor optical amplifier (SOA) were used to generate a phase delay to filter reflected spectrum form multiple candidate FBGs with the same optical path difference (OPD). Experimental results showed that the fastest interrogation delay time for the proposed method was only about 27.2 us for a single FBG interrogation, and the system...
Source: Sensors - February 24, 2018 Category: Biotechnology Authors: Chenyuan Hu Wei Bai Tags: Article Source Type: research

ZrO2-modified Ni/LaAl11O18 catalyst for CO methanation: Effects of catalyst structure on catalytic performance
We report Ni/LaHA@ZrO2 catalysts prepared by a facile modified successive adsorption and reaction method for CO methanation. N2 adsorption, X-ray diffraction, transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, H2 temperature-programmed reduction, H2 temperature-programmed desorption, X-ray photoelectron spectroscopy, thermogravimetric analysis, and inductively coupled plasma atomic emission spectrometry were used to characterize the samples. The results indicated that the ZrO2 nanoparticles were distributed over the surface of the Ni/LaHA@ZrO2 catalyst and even partially covered som...
Source: Chinese Journal of Catalysis - February 24, 2018 Category: Chemistry Source Type: research

Ethyl and butyl acetate oxidation over manganese oxides
Publication date: January 2018 Source:Chinese Journal of Catalysis, Volume 39, Issue 1 Author(s): Olívia Salomé G.P. Soares, Raquel P. Rocha, José J.M. Órfão, Manuel F.R. Pereira, José L. Figueiredo Mangenese oxides were synthesized using two new methods, a novel solvent-free reaction and a reflux technique, that produced cryptomelane-type products (K-OMS-2). Oxides were also synthesized using conventional methods and all specimens were applied to the oxidation of ethyl acetate and butyl acetate, acting as models for the volatile organic compounds found in industrial emissions. Th...
Source: Chinese Journal of Catalysis - February 24, 2018 Category: Chemistry Source Type: research

High photocatalytic activities of zinc oxide nanotube arrays modified with tungsten trioxide nanoparticles
Publication date: January 2018 Source:Chinese Journal of Catalysis, Volume 39, Issue 1 Author(s): Yawen Li, Yuzhen Bu, Qian Liu, Xia Zhang, Junli Xu Well-aligned zinc oxide (ZnO) nanotube arrays loaded with tungsten trioxide (WO3) nanoparticles were synthesized by a process involving chemical bath deposition in combination with pyrolysis. The prepared ZnO–WO3 composites were characterized by X-ray diffraction, energy dispersive spectrometer, field emission scanning electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectroscopy, Fourier transform infrared spectroscopy and UV–vis diffuse r...
Source: Chinese Journal of Catalysis - February 24, 2018 Category: Chemistry Source Type: research

Growth of Cu/SSZ-13 on SiC for selective catalytic reduction of NO with NH3
Publication date: January 2018 Source:Chinese Journal of Catalysis, Volume 39, Issue 1 Author(s): Tiaoyun Zhou, Qing Yuan, Xiulian Pan, Xinhe Bao Silicon carbide (SiC) was used as a support for SSZ-13 zeolite in an attempt to improve the high-temperature stability and activity of Cu/SSZ-13 in the selective catalytic reduction (SCR) of NO with NH3. SSZ-13 was grown via a hydrothermal method using the silicon and silica contained in SiC as the source of silicon, which led to the formation of a chemically bonded SSZ-13 layer on SiC. Characterization using X-ray diffraction, scanning electron microscopy, and N2 adsorption-des...
Source: Chinese Journal of Catalysis - February 24, 2018 Category: Chemistry Source Type: research

Biosynthesis of copper nanoparticles supported on manganese dioxide nanoparticles using Centella asiatica L. leaf extract for the efficient catalytic reduction of organic dyes and nitroarenes
In this study we designed a novel, cost-efficient and green method for the synthesis of copper nanoparticles (Cu NPs) supported on manganese dioxide (MnO2) NPs, using Centella asiatica L. leaf extract as a naturally-sourced reducing agent, without stabilizers or surfactants. This synthetic process is environmentally-friendly and avoids the use of toxic reducing agents. Phenolic hydroxyl groups in the leaf extract are believed to reduce Cu2+ in solution to generate Cu NPs that are subsequently stabilized on the MnO2 NP surfaces. The resulting Cu/MnO2 nanocomposite was fully characterized using X-ray diffraction, transmissio...
Source: Chinese Journal of Catalysis - February 24, 2018 Category: Chemistry Source Type: research

Encapsulation of a nickel Salen complex in nanozeolite LTA as a carbon paste electrode modifier for electrocatalytic oxidation of hydrazine
Publication date: February 2018 Source:Chinese Journal of Catalysis, Volume 39, Issue 2 Author(s): Seyed Karim Hassaninejad-Darzi A nickel salen complex was encapsulated in the supercages of nanozeolite NaA, LTA (linde type A) structure, using the flexible ligand method. The electrochemical behavior and electrocatalytic activity of a carbon paste electrode (CPE) modified with Ni(II)-Salen-A (Ni(II)-SalenA/CPE) for hydrazine oxidation in 0.1 mol/L NaOH solution were investigated by cyclic voltammetry, chronoamperometry, and chronocoulometry. First, organic-template-free synthesis of nanozeolite LTA was performed and the ob...
Source: Chinese Journal of Catalysis - February 24, 2018 Category: Chemistry Source Type: research

Correction to: Visualization of microaneurysms using optical coherence tomography angiography: comparison of OCTA en face, OCT B ‑scan, OCT en face, FA, and IA images
AbstractIn the original publication, the yellow circles in Figures  2a, 2b, 3a and 3b are placed incorrectly. The corrected figures are given in this Erratum. (Source: Japanese Journal of Ophthalmology)
Source: Japanese Journal of Ophthalmology - February 24, 2018 Category: Opthalmology Source Type: research

Oxfam: sex scandal or governance failure?
Publication date: Available online 23 February 2018 Source:The Lancet Author(s): Mishal S Khan (Source: The Lancet)
Source: The Lancet - February 24, 2018 Category: General Medicine Source Type: research

Biological effects of kojic acid on human monocytes in vitro
In conclusion, our results show that KA promotes the differentiation of monocytes into macrophages and can act as an immunomodulatory agent. Graphical abstract (Source: Biomedicine and Pharmacotherapy)
Source: Biomedicine and Pharmacotherapy - February 24, 2018 Category: Drugs & Pharmacology Source Type: research

Evaluation of the effect scan pattern has on the trueness and precision of six intraoral digital impression systems
ConclusionsScan pattern does not significantly affect the accuracy of the resulting digital model for sextant scanning. Clinical SignificanceCompanies who make digital impression systems often recommend a scan pattern specific for their system. However, every clinical scanning scenario is different and may require a different approach. Knowing how important scan pattern is with regards to accuracy would be helpful for guiding a growing number of practitioners who are utilizing this technology. (Source: Journal of Esthetic and Restorative Dentistry)
Source: Journal of Esthetic and Restorative Dentistry - February 24, 2018 Category: Dentistry Authors: Anthony S. Mennito, Zachary P. Evans, Mark E. Ludlow, Walter G. Renne Tags: RESEARCH ARTICLE Source Type: research

One-pot approach to prepare internally cross-linked monovalent selective anion exchange membranes
In this study, high performance internally cross-linked monovalent selective anion exchange membranes were prepared via a one-pot approach by simply adding different amounts of sulfamerazine (SF) to partially-quaternized chloromethylated polysulfone (QPSF). The composition and structure of the prepared membranes were studied by Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM) and Atomic force microscopy (AFM). The monovalent anion selectivity was evaluated by electrodialysis using a Cl-/SO4 2- system. The experimental results show that all QPSF-SF-x membranes exhibit excellent monovalent ...
Source: Journal of Membrane Science - February 24, 2018 Category: Materials Science Source Type: research

An Automated Workflow for Segmenting Single Adult Cardiac Cells from Large-Volume Serial Block-Face Scanning Electron Microscopy Data
Publication date: Available online 22 February 2018 Source:Journal of Structural Biology Author(s): Akter Hussain, Shouryadipta Ghosh, Siavash Beikoghli Kalkhoran, Derek J. Hausenloy, Eric Hanssen, Vijay Rajagopal This paper presents a new algorithm to automatically segment the myofibrils, mitochondria and nuclei within single adult cardiac cells that are part of a large serial-block-face scanning electron microscopy (SBF-SEM) dataset. The algorithm only requires a set of manually drawn contours that roughly demarcate the cell boundary at routine slice intervals (every 50th, for example). The algorithm correctly classifie...
Source: Journal of Structural Biology - February 24, 2018 Category: Biology Source Type: research

A comparative study on the supercapacitive behaviour of solvothermally prepared metal ferrite (MFe2O4, M  = Fe, Co, Ni, Mn, Cu, Zn) nanoassemblies
Publication date: 15 May 2018 Source:Journal of Alloys and Compounds, Volume 745 Author(s): M.L. Aparna, A. Nirmala Grace, P. Sathyanarayanan, Niroj Kumar Sahu Metal ferrites show excellent electrochemical properties owing to the multiple oxidation states of the metal ions which make them more suitable for electrode materials in supercapacitor applications. Here, we report the synthesis of mesoporous metal ferrites (MFe2O4, M = Fe, Co, Ni, Mn, Cu, Zn) nanoassemblies by solvothermal method in ethylene glycol solvent with the assistance of PEG 600 as co-solvent. The metal ferrites found to crystallize either in spinel o...
Source: Journal of Alloys and Compounds - February 24, 2018 Category: Chemistry Source Type: research

Middle ear damages.
Authors: Van Hoecke H, Calus L, Dhooge I Abstract Middle ear damages. The eardrum and middle ear are often exposed to blunt and penetrating trauma, blasts, thermal or caustic injuries. These injuries may result in tympanic membrane perforation, middle ear haemorrhage, dislocation and fracture of the ossicular chain, perilymphatic fistula and damage to the chorda tympani and/or facial nerve. In case of life-threatening injuries and/or mass casualty incidents, middle ear trauma obviously does not take highest priority. However, middle ear lesions should be suspected and recognized as early as possible. After meticulo...
Source: B-ENT - February 23, 2018 Category: ENT & OMF Tags: B-ENT Source Type: research

The Effect of Soft Tissue Injuries on Clinical Outcomes After Tibial Plateau Fracture Fixation
Conclusions: In this cohort of patients with operative tibial plateau fractures, sutured lateral meniscal tears, untreated medial meniscus tears, and complete MCL ruptures did not significantly affect clinical outcomes. In addition, these data suggest that obtaining a preoperative MRI in patients with tibial plateau fractures to diagnose soft tissue injuries may not alter the surgical treatment or alter patient prognosis for midterm outcomes. Level of Evidence: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence. (Source: Journal of Orthopaedic Trauma)
Source: Journal of Orthopaedic Trauma - February 23, 2018 Category: Orthopaedics Tags: Original Article Source Type: research

In Vitro Effect of Vancomycin on the Viability of Articular Chondrocytes
Objectives: To characterize the in vitro toxicity of vancomycin on articular cartilage. Methods: Osteochondral samples extracted from fresh, juvenile porcine stifle (knee) joints were exposed to vancomycin saline concentrations of 2, 5, and 10 mg/mL and compared with a saline and nonsaline treated control. Comparison of chondrocyte viability was assessed with histology examination of chondrocyte degeneration using the Mankin criteria and a live/dead staining using ethidium homodimer-2 and calcien acetoxymethylester stain and confocal laser scanning microscopy. Results: A comparison of chondrocyte viability in the c...
Source: Journal of Orthopaedic Trauma - February 23, 2018 Category: Orthopaedics Tags: Original Article Source Type: research

Age-related changes in choroidal vascular density of healthy subjects based on image binarization of swept-source optical coherence tomography
Purpose: To analyze the vascular density of the choroid in a healthy population using swept-source optical coherence tomography. Methods: A cross-sectional, noninterventional study. Inclusion criteria: best-corrected visual acuity between 20/20 and 20/25, spherical equivalent between ±3 diopters, no systemic or ocular diseases, and ages ranging between 3 and 85 years. One hundred and thirty-six eyes from 136 subjects were analyzed, 86 eyes (63.2%) were from male and 50 eyes (36.8%) from female subjects. The eyes were divided into different age groups to analyze the possible age-related changes. Twelve-millimete...
Source: RETINA - February 23, 2018 Category: Opthalmology Tags: Original Study Source Type: research

Conclusion: Retinal vascular abnormalities are present in a limited proportion of patients affected by NF1 and can be considered an additional distinctive sign of the disease. (Source: RETINA)
Source: RETINA - February 23, 2018 Category: Opthalmology Tags: Original Study Source Type: research

VISUALIZATION OF THE MACULA IN GAS-FILLED EYES: Spectral Domain Optical Coherence Tomography Versus Swept-Source Optical Coherence Tomography
Purpose: To compare the visualization of the macula between spectral domain optical coherence tomography (SD-OCT) and swept-source OCT (SS-OCT) in gas-filled eyes. Methods: Sixty-one patients with common indications of gas tamponade, including 27 with macular holes and 34 with rhegmatogenous retinal detachment, who were treated with vitrectomy and gas tamponade were imaged using both SD-OCT (3D-OCT 2000, Topcon, Tokyo, Japan) and SS-OCT (DRI-OCT, Topcon) at 1, 3, and 7 days after the surgery. Good visualization of the macular area was defined as 1) visible foveal contour and discriminable status of hole (open or close...
Source: RETINA - February 23, 2018 Category: Opthalmology Tags: Original Study Source Type: research

Optical coherence tomography angiography of flat irregular pigment epithelium detachment in chronic central serous chorioretinopathy
Conclusion: One-third of flat irregular PEDs in chronic central serous chorioretinopathy contained CNV. OCTA detected CNV more frequently than the other imaging modalities. Further longitudinal studies are needed to assess the indication of antivascular endothelial growth factor treatments in such cases. (Source: RETINA)
Source: RETINA - February 23, 2018 Category: Opthalmology Tags: Original Study Source Type: research

Indirect vs direct assessment of gastric emptying: A randomized crossover trial comparing C ‐isotope breath analysis and MRI
Conclusions & InferencesBT can assess relative emptying differences on group level and collecting breath data for 90 minutes constitutes a lower burden for participants and the research facility. However, BT has severe shortcomings compared to MRI for individual GE assessment. Notably, food matrix effects should be considered when interpreting the results of BT. Our aim was to assess similarity in assessment of gastric emptying between 90‐min 13C breath analysis and MRI among four liquid meals. On group level both measurement methods show similar order of emptying times, however, both t50 times and rankings wit...
Source: Neurogastroenterology and Motility - February 23, 2018 Category: Gastroenterology Authors: G. Camps, M. Mars, B. J. M. Witteman, C. de Graaf, P. A. M. Smeets Tags: ORIGINAL ARTICLE Source Type: research

Procedural pain and oral glucose in preterm neonates: brain development and sex-specific effects
Our objectives were to determine whether procedural pain and glucose exposure are associated with altered structural and functional brain development differently in preterm males and females, and neurodevelopment at 18-month corrected age. Fifty-one very preterm neonates (22 males; median [interquartile range] gestational age 27.6 [2.0] weeks) underwent 3 serial scans including T1-weighted and resting-state functional magnetic resonance imaging (MRI) at median postmenstrual weeks: 29.4, 31.9, and 41.1. Thalamus, basal ganglia, and total brain volumes were segmented. Functional resting-state MRI data were extracted from the...
Source: Pain - February 23, 2018 Category: Anesthesiology Tags: Research Paper Source Type: research

Is burning mouth syndrome a neuropathic pain condition?
Primary burning mouth syndrome (BMS) is defined as an “intraoral burning or dysaesthetic sensation, recurring daily… more than 3 months, without clinically evident causative lesions” (IHS 2013). In addition to pain, taste alterations are frequent (dysgeusia, xerostomia). Although lacking clinical signs of neuropathy, more accurate diagnostic methods have shown neuropathic involvement at various levels of the neuraxis in BMS: peripheral small fiber damage (thermal quantitative sensory testing, electrogustatometry, epithelial nerve fiber density), trigeminal system lesions in the periphery or the brainstem...
Source: Pain - February 23, 2018 Category: Anesthesiology Tags: NeuPSIG Reviews Source Type: research

Ischemic colitis following left antegrade sclerotherapy for idiopathic varicocele
Conclusions An anatomical variation consisting of a communication between the testicular and left colic veins has been described from the clinical point of view, corresponding to a significant anatomical finding identified in the past that has been under‐reported and its clinical importance subsequently underestimated. For the first time we have demonstrated its pathophysiological significance in a real clinical scenario, linking the anatomical variation to the clinical complication. This demonstrates the importance of raising scientific awareness to prevent possibly devastating complications in daily clinical practice. ...
Source: Clinical Anatomy - February 23, 2018 Category: Anatomy Authors: Rafael Boscolo ‐Berto, Veronica Macchi, Andrea Porzionato, Aldo Morra, Roberto Vezzaro, Marios Loukas, R. Shane Tubbs, Raffaele De Caro Tags: Review Source Type: research

Long ‐term clinicopathologic observation in a case of steroid‐resistant nephrotic syndrome caused by a novel Crumbs homolog 2 mutation
We report the long‐term clinicopathologic observation of a Japanese female patient with SRNS caused by a newly identified compound heterozygous mutation of CRB2 (p.Arg628Cys and p.Gly839Trp located in the 10th and 11th epidermal growth factor‐like domains, respectively). She was initially examined during a mass urinary mass screening for 3.5‐year‐old children in Japan. Although she developed long‐standing SRNS without any extrarenal clinical signs thereafter, her renal function was well‐preserved over the next 17 years. In total, 6 sequential renal biopsy specimens revealed histologic alterations ranging from m...
Source: Nephrology - February 23, 2018 Category: Urology & Nephrology Authors: Shojiro Watanabe, Tomomi Aizawa, Hiroyasu Tsukaguchi, Koji Tsugawa, Kazushi Tsuruga, Akemi Shono, Kandai Nozu, Kazumoto Iijima, Kensuke Joh, Hiroshi Tanaka Tags: Brief Communication Source Type: research

NHS response to vaginal mesh scandal will be reviewed
(Source: BMJ News)
Source: BMJ News - February 23, 2018 Category: General Medicine Source Type: research

Automatic MRI Quantifying Methods in Behavioral-Variant Frontotemporal Dementia Diagnosis
Conclusion: VOL, VBM, and their combination are effective in differential diagnostics between bvFTD and AD or SMC. However, MRI atrophy profiles for bvFTD and LBD are too similar for a reliable differentiation with the quantification methods tested in this study.Dement Geriatr Cogn Disord Extra 2018;8:51 –59 (Source: Dementia and Geriatric Cognitive Disorders Extra)
Source: Dementia and Geriatric Cognitive Disorders Extra - February 23, 2018 Category: Geriatrics Source Type: research