keyword
MENU ▼
Read by QxMD icon Read
search

AREDS

keyword
https://www.readbyqxmd.com/read/28532141/pleomorphic-sarcoma-of-breast-a-report-of-two-cases-and-review-of-literature
#1
Anju Bansal, Manveen Kaur, Varsha Dalal
Sarcomas account for less than 1% of all primary breast malignancies, pleomorphic sarcoma of the breast being even rarer. We present two cases of pleomorphic sarcoma of the breast in a 35-year-old and a 43-year-old female. An extensive review of the available literature with evaluation of the etiology, changing terminologies and histopathologic features of pleomorphic sarcoma of the breast are discussed. The prognostic factors and treatment modalities have also been reviewed.
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28532140/effective-treatment-of-cervical-lymph-node-metastasis-of-breast-cancer-by-low-voltage-high-frequency-electrochemotherapy
#2
Bahram Mofid, Zeinab Shankayi, Kambiz Novin, Sadegh Dehghani, Morteza Shankayi, Hamidreza Haghighatkhah, S Mohammad Firoozabadi
Electrochemotherapy (ECT) is a new local treatment method for solid and superficial tumors. During this new technique, patients experience an unpleasant sensation and slight edema. Most unpleasant and painful is mainly attributed to muscle contractions provoked by high amplitude and low repetition frequency pulses. Recently, we showed that electrochemotherapy using low voltage and higher repetition frequency (LVHF ECT) is an effective tool for inhibiting tumor growth and inducing cell permeabilization. Low voltage high-frequency electrochemotherapy was developed and optimized in vitro and in vivo which and can be used in the clinic...
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28532139/systemic-amyloidosis-in-a-teenage-boy-with-inflammatory-bowel-disease
#3
Farzaneh Motamed, Rita Bagherian, Gholamhossin Adalat, Mohammad Hassan Moradinejad, Nilofar Hajizadeh, Mohammad Vasei, Mehrzad Mehdizadeh, Nima Rezaei
Systemic amyloidosis is a very rare complication of inflammatory bowel disease (IBD). The reported cases of secondary amyloidosis in children with IBD are much fewer than those reported in adults. Herein, a teenage boy with Crohn's disease is presented who developed nephrotic syndrome due to renal involvement secondary to amyloidosis, whereas the patient was under treatment with corticosteroid and 6-mercaptopurine. To our best knowledge, this is the first reported case of secondary amyloidosis in a teenage Iranian boy with Crohn's disease...
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28532137/the-comparative-study-of-ondansetron-and-metoclopramide-effects-in-reducing-nausea-and-vomiting-after-laparoscopic-cholecystectomy
#4
Khatereh Isazadehfar, Masoud Entezariasl, Bita Shahbazzadegan, Zahra Nourani, Yousef Shafaee
Postoperative nausea and vomiting (PONV) are one of the most common complications of anesthesia and without prophylactic intervention occurs by about one-third of patients under general anesthesia. The aim of this study was to compare the efficacy of ondansetron and metoclopramide in reducing PONV after laparoscopic cholecystectomy. In this study, 60 patients undergoing laparoscopic cholecystectomy were randomly allocated into two equal groups (n=30), and in the first group 10 mg metoclopramide and in the second group 4 mg ondansetron preoperatively were injected...
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28532135/anthropometric-analysis-of-cephalofacial-dimensions-in-kerman-iran
#5
Fatemeh Pouya, Seyed Hassan Eftekhar-Vaghefi, Parvin Salehinejad
The human body dimensions are affected by ecological, biological, geographical, racial, sex, and age factors. Craniofacial measurements can be considered to be one of the important tools for determination of the morphological characteristics of the head and face. In this study, which was conducted on Persian adolescents living in Kerman/Iran, different forms of head and face were determined for using in various aspects of medicine. The study was conducted on 732 participants including 366 males and 366 females in the age of 18-20-year-old...
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28532134/assessing-the-efficacy-of-second-line-antiretroviral-treatment-for-hiv-patients-failing-first-line-antiretroviral-therapy-in-iran-a-cohort-study
#6
Mehrnaz Rasooli-Nejad, Maryam Khazaee-Pool, Ladan Abbasian, Zahra Bayat Jozani, Sara Ahsani-Nasab, Banafsheh Moradmand Badie, Afsaneh Pargar, Gholamreza Esmaeeli Djavid
There are limited documents about HIV patients switched to second-line antiretroviral therapy (ART) in resource-limited countries. We aimed to assess the efficacy of second-line ART for HIV patients following first-line ART failure. This was a cohort study of HIV/AIDS patients with first-line ART treatment failure switched to second-line ART between January 2004 and March 2014, who followed for at least 12 months after switching. Fifty of studied patients (85%) were treated with regimens containing lopinavir/ritonavir (Kaletra) and nine of them (15%) treated with other regimes...
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28532131/investigation-into-the-anomalous-temperature-characteristics-of-ingan-double-quantum-well-blue-laser-diodes-using-numerical-simulation
#7
Han-Youl Ryu
GaN-based blue laser diodes (LDs) may exhibit anomalous temperature characteristics such as a very high characteristic temperature (T 0) or even negative T 0. In this work, temperature-dependent characteristics of GaN-based blue LDs with InGaN double quantum well (QW) structures were investigated using numerical simulations. The temperature-dependent threshold current is found to become increasingly anomalous as the thickness or doping concentration of the barrier layer between QWs increases. For a properly chosen barrier thickness and doping concentration, very high T 0 of >10,000 K can be obtained...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28532130/effect-of-systematic-control-of-pd-thickness-and-annealing-temperature-on-the-fabrication-and-evolution-of-palladium-nanostructures-on-si-111-via-the-solid-state-dewetting
#8
Sundar Kunwar, Puran Pandey, Mao Sui, Quanzhen Zhang, Ming-Yu Li, Jihoon Lee
Si-based optoelectronic devices embedded with metallic nanoparticles (NPs) have demonstrated the NP shape, size, spacing, and crystallinity dependent on light absorption and emission induced by the localized surface plasmon resonance. In this work, we demonstrate various sizes and configurations of palladium (Pd) nanostructures on Si (111) by the systematic thermal annealing with the variation of Pd thickness and annealing temperature. The evolution of Pd nanostructures are systematically controlled by the dewetting of thin film by means of the surface diffusion in conjunction with the surface and interface energy minimization and Volmer-Weber growth model...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28532124/side-flow-effect-on-surface-generation-in-nano-cutting
#9
Feifei Xu, Fengzhou Fang, Xiaodong Zhang
The side flow of material in nano cutting is one of the most important factors that deteriorate the machined surface quality. The effects of the crystallographic orientation, feed, and the cutting tool geometry, including tool edge radius, rake angle and inclination angle, on the side flow are investigated employing molecular dynamics simulation. The results show that the stagnation region is formed in front of tool edge and it is characterized by the stagnation radius R s and stagnation height h s . The side flow is formed because the material at or under the stagnation region is extruded by the tool edge to flow to the side of the tool edge...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28532123/origin-of-dislocation-luminescence-centers-and-their-reorganization-in-p-type-silicon-crystal-subjected-to-plastic-deformation-and-high-temperature-annealing
#10
Bohdan Pavlyk, Markiyan Kushlyk, Dmytro Slobodzyan
Changes of the defect structure of silicon p-type crystal surface layer under the influence of plastic deformation and high temperature annealing in oxygen atmosphere were investigated by deep-level capacitance-modulation spectroscopy (DLCMS) and IR spectroscopy of molecules and atom vibrational levels. Special role of dislocations in the surface layer of silicon during the formation of its energy spectrum and rebuilding the defective structure was established. It is shown that the concentration of linear defects (N ≥ 10(4) cm(-2)) enriches surface layer with electrically active complexes (dislocation-oxygen, dislocation-vacancy, and dislocation-interstitial atoms of silicon) which are an effective radiative recombination centers...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28532121/antimicrobial-activity-of-puffball-bovistella-radicata-and-separation-of-bioactive-compounds
#11
Yong Ye, Kun Liu, Qinghua Zeng, Qingmei Zeng
BACKGROUND: To test the antimicrobial activity of different extracts and fermentation broth from puffball(Bovistella radicata), the different extracts and fermentation broth of puffball were prepared, the active fraction was investigated by UPLC-UV-MS and semi-preparative chromatograph. RESULTS: Through zones of inhibition (ZOI) and minimum inhibitory concentrations (MIC) tests, the supernatant of fermentation possessed best antimicrobial activity in all extracts whose MIC value is 31...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28532120/ultra-small-silver-nanoparticles-induced-ros-activated-toll-pathway-against-staphylococcus-aureus-disease-in-silkworm-model
#12
Pala Rajasekharreddy, Pathipati Usha Rani, Saidulu Mattapally, Sanjay Kumar Banerjee
The present study investigated the therapeutic action of flavonoids loaded silver nanoparticles (FLV-Ag NPs) on a silkworm, Bombyx mori L., larvae infected by the S. aureus, where an in vivo model system was used. FLV-Ag NPs were synthesized using a Ricinus communis L. leaf extracted flavonoid mixture in various concentrations. The reduction reaction was performed under a simple sunlight exposure condition. In the reduction process, quercetin and kaempferol loadings were also found. They were confirmed by UV-visible, TEM, XRD, XPS, DLS and FTIR spectroscopic techniques...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532119/poly-d-l-lactide-polycaprolactone-bioactive-glasss-nanocomposites-materials-for-anterior-cruciate-ligament-reconstruction-screws-the-effect-of-glass-surface-functionalization-on-mechanical-properties-and-cell-behaviors
#13
Javad Esmaeilzadeh, Saeed Hesaraki, Seyed Mohammad-Mehdi Hadavi, Mohammad Hosein Ebrahimzadeh, Masoud Esfandeh
In this paper, different nanocomposites made of a polymer blend (80% of PDLLA and 20% of PCL in w/w) and various amounts of a sol-gel derived bioactive glass nanoparticles (0, 1, 3 and 6wt%) were prepared using a solvent-evaporation technique. The morphology, mechanical properties and osteoblastic cell behaviors of the nanocomposites were evaluated. According to the early results, addition of bioactive glass nanoparticles to the polymer matrix reduced the tensile and flexural strength because of a non-uniform distribution of the nanoparticles...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532116/antibacterial-mechanical-and-surface-properties-of-ag-dlc-films-prepared-by-dual-pld-for-medical-applications
#14
P Písařík, M Jelínek, J Remsa, J Mikšovský, J Zemek, K Jurek, Š Kubinová, J Lukeš, J Šepitka
Silver doped diamond-like carbon layers were deposited by dual pulsed laser deposition using two KrF excimer lasers. The concentration of Ag, determined by XPS and WDS, moved from zero to ~10at%. We found that the sp(2)/sp(3) ratio, film roughness and the number of droplets (SEM and AFM) increased with increasing silver concentration. The sp(3) content measurement (XPS) was influenced by ion cluster surface sputtering and varied from 71.0% (undoped DLC) to 36.2% (for 9.3at% Ag). Transmission was measured on the scale from 200nm to 1100nm, and decreased with increasing silver content...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532113/nanofibers-of-human-tropoelastin-inspired-peptides-structural-characterization-and-biological-properties
#15
Valeria Secchi, Stefano Franchi, Marco Fioramonti, Giovanni Polzonetti, Giovanna Iucci, Brigida Bochicchio, Chiara Battocchio
Regenerative medicine is taking great advantage from the use of biomaterials in the treatments of a wide range of diseases and injuries. Among other biomaterials, self-assembling peptides are appealing systems due to their ability to spontaneously form nanostructured hydrogels that can be directly injected into lesions. Indeed, self-assembling peptide scaffolds are expected to behave as biomimetic matrices able to surround cells, to promote specific interactions, and to control and modify cell behavior by mimicking the native environment as well...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532108/assessing-stiffness-of-nanofibres-in-bacterial-cellulose-hydrogels-numerical-experimental-framework
#16
Xing Gao, Emrah Sozumert, Zhijun Shi, Guang Yang, Vadim V Silberschmidt
This work presents a numerical-experimental framework for assessment of stiffness of nanofibres in a fibrous hydrogel - bacterial cellulose (BC) hydrogel - based on a combination of in-aqua mechanical testing, microstructural analysis and finite-element (FE) modelling. Fibrous hydrogels attracted growing interest as potential replacements to some tissues. To assess their applicability, a comprehensive understanding of their mechanical response under relevant conditions is desirable; a lack of such knowledge is mainly due to changes at microscale caused by deformation that are hard to evaluate in-situ because of the dimensions of nanofibres and aqueous environment...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532107/comparison-of-electrospun-and-solvent-cast-polylactic-acid-pla-poly-vinyl-alcohol-pva-inserts-as-potential-ocular-drug-delivery-vehicles
#17
Rajan Sharma Bhattarai, Amitesh Das, Rami M Alzhrani, Dongjin Kang, Sarit B Bhaduri, Sai H S Boddu
PURPOSE: The purpose of this work was to develop, characterize and compare electrospun nanofiber inserts (ENIs) and solvent cast polymeric inserts (SCIs) for ocular drug delivery. METHODS: ENI and SCI of 1%, 5% and 10% w/w dexamethasone were fabricated using a blend of poly-lactic acid (PLA) and poly-vinyl alcohol (PVA). Inserts were characterized for morphology, thickness, pH, drug content, drug crystallinity, in vitro drug release, sterility, dimethylformamide (DMF) and chloroform content, and cytotoxicity...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532105/additive-manufacturing-with-polypropylene-microfibers
#18
Jodie N Haigh, Tim R Dargaville, Paul D Dalton
The additive manufacturing of small diameter polypropylene microfibers is described, achieved using a technique termed melt electrospinning writing. Sequential fiber layering, which is important for accurate three-dimensional fabrication, was achieved with the smallest fiber diameter of 16.4±0.2μm obtained. The collector speed, temperature and melt flow rate to the nozzle were optimized for quality and minimal fiber pulsing. Of particular importance to the success of this method is appropriate heating of the collector plate, so that the electrostatically drawn filament adheres during the direct-writing process...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532101/sonochemical-synthesis-of-fructose-1-6-bisphosphate-dicalcium-porous-microspheres-and-their-application-in-promotion-of-osteogenic-differentiation
#19
Chao Qi, Ding Zhou, Ying-Jie Zhu, Tuan-Wei Sun, Feng Chen, Chang-Qing Zhang
Human bone mesenchymal stem cells (hBMSCs) have the ability to differentiate into bone and cartilage for clinical bone regeneration. Biomaterials with an innate ability to stimulate osteogenic differentiation of hBMSCs into bone and cartilage are considered attractive candidates for the applications in bone tissue engineering and regeneration. In this paper, we synthesized fructose 1,6-bisphosphate dicalcium (Ca2FBP) porous microspheres by the sonochemical method, and investigated the ability of Ca2FBP for the promotion of the osteogenic differentiation of hBMSCs...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532096/preparation-of-nanocrystalline-forsterite-by-combustion-of-different-fuels-and-their-comparative-in-vitro-bioactivity-dissolution-behaviour-and-antibacterial-studies
#20
Rajan Choudhary, Prasanth Manohar, Jana Vecstaudza, Maria Josefa Yáñez-Gascón, Horacio Pérez Sánchez, Ramesh Nachimuthu, Janis Locs, Sasikumar Swamiappan
This study presents different fuels (Glycine and Urea) that can be used to synthesize nanocrystalline forsterite by the sol-gel combustion method. The weight change of precursor during thermal treatment was studied by thermo-gravimetric analysis (TGA). Pure forsterite was characterized by heating microscopy, Fourier transform infrared spectroscopy, X-ray Diffraction, Brunauer-Emmett-Teller, Scanning Electron Microscopy, and Energy dispersive X-ray spectroscopy. The HAP (hydroxyapatite) deposition ability, degradation and dissolution behaviour of forsterite was examined in simulated body fluid (SBF)...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
keyword
keyword
76131
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"