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https://www.readbyqxmd.com/read/28527427/photothermal-therapy-using-folate-conjugated-gold-nanoparticles-enhances-the-effects-of-6mv-x-ray-on-mouth-epidermal-carcinoma-cells
#1
Ali Neshastehriz, Mousa Tabei, Shayan Maleki, Samira Eynali, Ali Shakeri-Zadeh
The aim of this study was to develop an optimized method for preparation of folate conjugated gold nanoparticles (F-AuNPs) and to investigate its cytotoxic effects and cell apoptosis in combination with photothermal therapy (PTT) and radiotherapy (RT) for the treatment of mouth epidermal carcinoma cells KB. For this purpose, cells were treated with synthesized F-AuNPs at different concentrations for 6h and then irradiated them with laser beam (532nm, 0.5W/cm(2), 15min). After photothermal therapy, the cells were exposed to 6MV X-ray with a single dose of 2Gy...
May 12, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28525681/unveiling-idiopathic-macular-telangiectasia-clinical-applications-of-optical-coherence-tomography-angiography
#2
Marco A Gonzalez, Diana Shechtman, Jay M Haynie, Leo Semes
PURPOSE: Idiopathic macular telangiectasia type 2 (IMT2) is a bilateral acquired maculopathy, with a spectrum of clinical presentations associated with inner retinal telangiectatic vascular anomalies. Cases often are underdiagnosed or misdiagnosed. Current diagnostic modalities such as spectral-domain optical coherence tomography (SD-OCT) and fluorescein angiography (FA) are valuable to the understanding of the clinicopathology. More recently, optical coherence tomography angiography (OCTA), as an emerging noninvasive technology, has been shown to be particularly useful in the assessment and management of IMT2...
May 19, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28524835/collapsin-response-mediator-protein-2-induced-retinal-ischemic-injury-in-a-novel-mice-model-of-ocular-ischemia-syndrome
#3
Yu Wang, Xiao-Lei Wang, Guo-Li Xie, Hong-Yang Li, Yan-Ling Wang
BACKGROUND: Collapsin response mediator protein-2 (CRMP2) has been shown to be involved in ischemia/hypoxia (IH) injury. We determined whether CRMP2 modulates ischemic injury in the retinal of Ocular ischemic syndrome (OIS). This study was to explore the molecular mechanisms underlying OIS in a novel mice model. METHODS: Experiments were performed on adult male C57/BL6 mice that received bilateral internal carotid arteries ligation for 1, 2, or 4 weeks. The mice received injection of calpeptin group before occlusion for 4 weeks or not...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28524544/enzymatic-engineering-of-live-bacterial-cell-surface-using-butelase-1
#4
Xiaobao Bi, Juan Yin, Giang K T Nguyen, Chang Rao, Nurashikin Bte Abdul Halim, Xinya Hemu, James P Tam, Chuan-Fa Liu
We show that butelase-mediated ligation (BML) can be used to modify live bacterial cell surfaces with diverse cargo molecules. Surface-displayed butelase recognition motif NHV was first introduced at the C-terminal end of the anchoring protein OmpA on E. coli cells. This then served as a handle of BML for the functionalization of E. coli cell surfaces with fluorescein and biotin tags, a tumor-associated monoglycosylated peptide and mCherry protein. The cell-surface ligation reaction was achieved at low concentrations of butelase and the labeling substrates...
May 19, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28524148/-atypical-clinical-case-of-solar-retinopathy
#5
N V Pomytkina, A L Zhirov, T L Sorokin
The paper presents an atypical case of solar retinopathy after short-term exposure to reflected focused sunbeams. An ophthalmoscopic peculiarity was the presence of intraretinal hemorrhage. The basis for establishing the diagnosis were spectral optical coherence tomography and fluorescein angiography findings.
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28524134/-oct-morphometric-and-angiographic-parallels-between-different-variants-of-central-serous-chorioretinopathy
#6
I E Panova, T B Shaimov, V A Shaimova
Central serous chorioretinopathy (CSCR) is a frequent cause of vision deterioration. Often it is associated with type 1 neovascularization under the pigment retinal epithelium (RPE). Optical coherence tomography angiography (OCT-angiography) enables non-invasive and contrast-free detection of neovessels in any retinal layer, which makes the method appropriate for diagnostics in CSCR. AIM: to investigate OCT-morphometric and angiographic parallels between different CSCR courses. MATERIAL AND METHODS: The study included 37 patients with CSCR...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28523565/blood-brain-barrier-permeability-is-exacerbated-in-experimental-model-of-hepatic-encephalopathy-via-mmp-9-activation-and-downregulation-of-tight-junction-proteins
#7
Saurabh Dhanda, Rajat Sandhir
The present study was designed to investigate the mechanisms involved in blood-brain barrier (BBB) permeability in bile duct ligation (BDL) model of chronic hepatic encephalopathy (HE). Four weeks after BDL surgery, a significant increase was observed in serum bilirubin levels. Masson trichrome staining revealed severe hepatic fibrosis in the BDL rats. (99m)Tc-mebrofenin retention was increased in the liver of BDL rats suggesting impaired hepatobiliary transport. An increase in permeability to sodium fluorescein, Evans blue, and fluorescein isothiocyanate (FITC)-dextran along with increase in water and electrolyte content was observed in brain regions of BDL rats suggesting disrupted BBB...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28523457/retinal-pigmentary-changes-in-chronic-uveitis-mimicking-retinitis-pigmentosa
#8
D Damla Sevgi, Samaneh Davoudi, Jason Comander, Lucia Sobrin
PURPOSE: To present retinal pigmentary changes mimicking retinitis pigmentosa (RP) as a finding of advanced uveitis. METHODS: We retrospectively reviewed charts of patients without a family history of inherited retinal degenerations who presented with retinal pigment changes and signs of past or present intraocular inflammation. Comprehensive eye examination including best-corrected visual acuity, slit-lamp examination and dilated fundus examination was performed on all patients in addition to color fundus photography, optical coherence tomography, fluorescein angiography (FA), and full-field electroretinogram testing...
May 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28521410/effect-of-momordica-charantia-protein-on-proliferation-apoptosis-and-the-akt-signal-transduction-pathway-in-the-human-endometrial-carcinoma-ishikawa-h-cell-line-in-vitro
#9
Hang-Zhi Gu, Rong-Rong Lin, Han-Chu Wang, Xue-Jie Zhu, Yan Hu, Fei-Yun Zheng
Endometrial carcinoma (EC) is one of the most common female malignancies, and there is an urgent requirement to explore new therapeutic strategies. In the present study, Ishikawa H cells were treated with Momordica charantia protein (MCP30). The cell morphology, growth inhibition rate, cell cycle distribution, and expression of phosphate and tensin homolog, P-AKT and AKT were measured. DNA fragmentation analysis and Annexin V-fluorescein isothiocyanate/propidium iodide double staining assay were used to analyze cell apoptosis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521359/quantitative-comparison-of-the-intraoperative-utility-of-indocyanine-green-and-fluorescein-videoangiographies-in-cerebrovascular-surgery
#10
Fumihiro Matano, Takayuki Mizunari, Yasuo Murai, Asami Kubota, Yu Fujiki, Shiro Kobayashi, Akio Morita
BACKGROUND: A quantitative analysis comparing indocyanine green videoangiography (ICG-VAG) and fluorescein videoangiography (FL-VAG) in cerebrovascular surgery has not been reported so far. OBJECTIVE: To clear the differences of characteristics of ICG-VAG and FL-VAG by quantitative assessment. METHODS: We prospectively analyzed results from 23 patients (3 males; mean age at surgery: 60.9 years, range: 14-75 years) at our hospital from August 2014 to July 2015...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28520642/inflammatory-choroidal-neovascular-membrane-long-term-visual-and-anatomical-outcomes-after-intravitreal-anti-vascular-endothelial-growth-factor-therapy
#11
Palmeera Dʼsouza, Ratnesh Ranjan, Upendra Babu, Anuradha V Kanakath, Veerappan R Saravanan
PURPOSE: To assess the long-term visual and anatomical outcomes after intravitreal anti-vascular endothelial growth factor therapy for inflammatory choroidal neovascular membrane (CNVM). METHODS: Retrospective case series of 15 consecutive cases of newly diagnosed inflammatory CNVM who were treated with intravitreal bevacizumab or ranibizumab injections. RESULTS: The study included 8 women and 7 men with mean age at presentation with CNVM of 40...
May 16, 2017: Retina
https://www.readbyqxmd.com/read/28520638/effects-of-intravitreal-ranibizumab-and-bevacizumab-on-the-retinal-vessel-size-in-diabetic-macular-edema
#12
Muhammed Mustafa Kurt, Osman Çekiç, Çetin Akpolat, Mustafa Elçioglu
PURPOSE: The goal of this study was to assess the effects of a single injection of intravitreal ranibizumab (RAN) or bevacizumab (BEV) on the retinal vessel size in eyes with diabetic macular edema. MATERIALS AND METHODS: In total, 32 patients were enrolled in the RAN group, and 30 patients were included in BEV group. Each of these groups was also subdivided into two others groups: a study group and a control group. The study groups were composed of the injected eyes, whereas the noninjected fellow eyes served as the control groups...
May 16, 2017: Retina
https://www.readbyqxmd.com/read/28518109/assessment-of-neuronal-viability-using-fluorescein-diacetate-propidium-iodide-double-staining-in-cerebellar-granule-neuron-culture
#13
Lin Jiajia, Mak Shinghung, Zheng Jiacheng, Wang Jialing, Xu Dilin, Hu Shengquan, Zhang Zaijun, Wang Qinwen, Han Yifan, Cui Wei
Primary cultured Cerebellar Granule Neurons (CGNs) have been widely used as an in vitro model in neuroscience and neuropharmacology research. However, the co-existence of glial cells and neurons in CGN culture might lead to biases in the accurate assessment of neuronal viability. Fluorescein diacetate (FDA) and Propidium Iodide (PI) double staining has been used to measure cell viability by simultaneously evaluating the viable and dead cells. We used FDA-PI double staining to improve the sensitivities of the colorimetric assays and to evaluate neuronal viability in CGNs...
May 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28516255/water-quality-interaction-with-alkaline-phosphatase-in-the-ganga-river-implications-for-river-health
#14
Amita Yadav, Jitendra Pandey
Carbon, nitrogen and phosphorus inputs through atmospheric deposition, surface runoff and point sources were measured in the Ganga River along a gradient of increasing human pressure. Productivity variables (chlorophyll a, gross primary productivity, biogenic silica and autotrophic index) and heterotrophy (respiration, substrate induced respiration, biological oxygen demand and fluorescein diacetate hydrolysis) showed positive relationships with these inputs. Alkaline phosphatase (AP), however, showed an opposite trend...
May 17, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28513004/effects-of-encapsulated-porcine-islets-on-glucose-and-c-peptide-concentrations-in-diabetic-nude-mice-6%C3%A2-months-after%C3%A2-intraperitoneal-transplantation
#15
Masuhiro Nishimura, Naho Iizuka, Yasutaka Fujita, Osamu Sawamoto, Shinichi Matsumoto
BACKGROUND: In patients with type 1 diabetes, allogeneic islet transplantation can provide normal HbA1c concentrations, but it requires immunosuppression. Transplanting encapsulated islets into the peritoneal cavity could reduce or eliminate the need for immunosuppression. One of the uncertain features of intraperitoneal islet transplantation is the difficulty of measuring C-peptide concentrations in peripheral blood, which is often used for the marker of islet function. We hypothesized that secreted C-peptide from intraperitoneally transplanted islets was mostly consumed in the peritoneal cavity, which resulted in low C-peptide concentrations in peripheral blood...
May 16, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28512652/comparison-of-simplistic-biofilm-models-for-%C3%A2-evaluating-irrigating-solutions
#16
Maximilian Gänsbauer, Andreas Burkovski, Matthias Karl, Tanja Grobecker-Karl
OBJECTIVE: Many innovations have recently been implemented in the field of endodontics, often based on a variety of in-vitro/ex-vivo test setups. It was the goal of this research to compare different biofilm models for evaluating the effectiveness of rinsing solutions. METHOD AND MATERIALS: Three different models have been applied in this study, including petri dishes with nutrient medium, arrays of human dentin disks, and split bovine root segments. The susceptibility of biofilms formed by Enterococcus faecalis to commonly used endodontic irrigants was tested...
May 16, 2017: Quintessence International
https://www.readbyqxmd.com/read/28512425/long-term-follow-up-of-polypoidal-choroidal-vasculopathy-secondary-to-angioid-streaks-treated-by-intravitreal-aflibercept-and-ranibizumab
#17
James G Wong, Katherine Yu Qian
PURPOSE: Angioid streaks (AS) are dehiscences in Bruch's membrane that may be idiopathic or associated with numerous systemic illnesses. Polypoidal choroidal vasculopathy (PCV) is an underdiagnosed exudative chorioretinopathy often characterised by serosanguineous detachments of the pigmented epithelium. The use of the anti-VEGF agents ranibizumab and aflibercept in the management of PCV secondary to AS has not been previously documented. We report 3 patients with active PCV secondary to AS, 1 of which had a family history of PCV secondary to AS, not previously reported in the literature...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28512039/fluorescein-guided-surgery-for-high-grade-glioma-resection-an-intraoperative-contrast-enhancer
#18
Giuseppe Catapano, Francesco Giovanni Sgulò, Vincenzo Seneca, Giovanni Lepore, Laura Columbano, Giuseppe di Nuzzo
BACKGROUND: Fluorescein sodium salt is widely used in medicine as fluorescein isothiocyanate and commonly named fluorescein (FL). This fluorophore has been used as a fluorescent tracer for many applications, especially in ophthalmic surgery. The initial use in neuro-oncologic field occurred in 1948 in order to control tumor resection margins. After a transient disuse, it has recently had a second spring with the development of dedicated filters for operating microscope, although it is still under evaluation in clinical use...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28512018/nanoencapsulation-of-a-glucocorticoid-improves-barrier-function-and-anti-inflammatory-effect-on-monolayers-of-pulmonary-epithelial-cell-lines
#19
Lucas A Rigo, Cristiane S Carvalho-Wodarz, Adriana R Pohlmann, Silvia S Guterres, Nicole Schneider-Daum, Claus-Michael Lehr, Ruy C R Beck
The anti-inflammatory effect of polymeric deflazacort nanocapsules (NC-DFZ) was investigated, and possible improvement of epithelial barrier function using filter grown monolayers of A549 and Calu-3 using as models was assessed. NC prepared from poly(ε-caprolactone) (PCL) had a mean size around 200 nm, slightly negative zeta potential (∼ - 8 mV), and low polydispersity index (< 0.10). Encapsulation of DFZ had an efficiency of 85%. No cytotoxic effects were observed at particle concentration of 9.85 x 10(11) NC/ml, which was therefore chosen to evaluate the effect of NC-DFZ at 1% (w/v) of PCL and 0...
May 13, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28511872/impairment-of-tear-film-and-the-ocular-surface-in-patients-with-facial-burns
#20
Sang Ouk Choi, Tae-Young Chung, Young Joo Shin
AIM: The aim of this study is to investigate the factors affecting tear film and ocular surface in patients with facial burns. METHODS: A total of 273 patients with facial burns, treated at Hallym University Hangang Sacred Heart Hospital from November 2012 to July 2015, were included. Tear break-up time (TBUT), Schirmer's tear secretion test, fluorescein staining score (FSS), ocular surface disease index (OSDI), and visual analogue pain score (VAS) were compared according to burned surface area, burn site, burn cause, time since burn injury, or lid abnormality...
May 13, 2017: Burns: Journal of the International Society for Burn Injuries
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