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https://www.readbyqxmd.com/read/29148807/catholyte-formulations-for-high-energy-li-s-batteries
#1
Satyajit Phadke, Erwan Coadou, Mérièm Anouti
The sulphur electrode in LiS batteries suffers from rapid capacity loss and low efficiency due to the solubility of long chain polysulphides formed during discharge. Herein, we demonstrate the beneficial effect of original catholyte formulations containing redox active organyl disulphides (PhS2Ph) on the capacity utilization and retention as well as the efficiency in LiS batteries. Resulting from the chemical equilibria in the electrolyte between the sulphur/polysulphides (S8/Sx2-) and disulphide/thiolates (PhS2Ph/PhSx-), the polysulphide redox shuttle phenomenon is minimized due to the suppression of formation of soluble polysulphides (Sx2-, x > 4)...
November 17, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29142567/outcomes-of-intravitreal-bevacizumab-and-macular-photocoagulation-for-treatment-of-diabetic-macular-edema-in-a-tertiary-care-eye-hospital-karachi
#2
Adil Salim Jafri, Aziz-Ur-Rehman, Abdul Haleem Mirani, Saleh Memon
Objective: To study the outcomes of intravitreal injection of Bevacizumab and laser photocoagulation in the treatment of diabetic macular edema (DME). Methods: Seventy-two eyes of 59 patients with diabetic macular edema were divided into two groups of 41 eyes (Group-A) and 31 eyes (Group-B). Subjects in group-A were treated with three intravitreal injections of Bevacizumab (IVB), and that of group-B with macular photocoagulation. Duration of study was 9 months. Follow up pattern for both groups was1, 2, 3 and 6 months...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29135003/elucidating-electrolyte-decomposition-under-electron-rich-environments-at-the-lithium-metal-anode
#3
Luis E Camacho-Forero, Perla B Balbuena
The lithium metal anode is one of the key components of the lithium-sulfur (Li-S) batteries, which are considered one of the most promising candidates for the next generation of battery systems. However, one of the main challenges that have prevented Li-metal anodes from becoming feasible to be used in commercial batteries is the continuous decomposition of the electrolyte due to its high reactivity, which leads to the formation of solid-electrolyte interphase (SEI) layers. The properties of the SEI can dramatically affect the performance of the batteries...
November 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29134820/pharmacokinetics-of-intravitreal-anti-vegf-drugs-in-vitrectomized-versus-non-vitrectomized-eyes
#4
Magdalena Edington, Julie Connolly, Ngaihang Victor Chong
Introduction The review aims to discuss effects of vitrectomy on pharmacokinetics of anti-vascular endothelial growth factor (anti-VEGF) agents, and attempt to provide treatment guidance. Areas Covered An Embase search was conducted using the terms 'anti-VEGF', 'pegaptanib', 'ranibizumab', 'bevacizumab', 'aflibercept', 'pharmacokinetics', 'half-life', 'clearance', 'metabolism', 'vitrectomy', 'vitrectomized'. Published data regarding the pharmacokinetic properties of the above drugs and the effect of vitrectomy in animal and human eyes was reviewed...
November 14, 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/29134333/whole-cell-dependent-biosynthesis-of-sulfo-conjugate-using-human-sulfotransferase-expressing-budding-yeast
#5
Miyu Nishikawa, Yuuka Masuyama, Motomichi Nunome, Kaori Yasuda, Toshiyuki Sakaki, Shinichi Ikushiro
Cytosolic sulfotransferases (SULTs), one of the predominant phase II drug metabolizing enzymes (DME), play important roles in metabolism of xeno- and endobiotics to generate their sulfo-conjugates. These sulfo-conjugates often have biological activities but are difficult to study, because even though only small amounts are required to evaluate their efficacy and safety, chemical or biological synthesis of sulfo-conjugatesis is often challenging. Previously, we constructed a DME expression system for cytochrome P450 and UGT, using yeast cells, and successfully produced xenobiotic metabolites in a whole-cell-dependent manner...
November 13, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29132693/relationship-between-visual-outcomes-and-retinal-fluid-resorption-in-patients-with-diabetic-macular-edema-treated-with-ranibizumab
#6
B Penaud, F Fajnkuchen, O Levy, G Chaine, A Giocanti-Auregan
PURPOSE: We assessed the relationship between visual acuity (VA) recovery and a qualitative criterion - complete retinal fluid resorption (CRFR) - among patients treated with ranibizumab for diabetic macular edema (DME) METHODS: All consecutive diabetic patients with central DME received a loading dose of 3 monthly injections of ranibizumab 0.5mg, followed by retreatments on an as-needed basis as determined by monthly follow-up. Patients were divided into 3 groups: CRFR (defined as a CRT <300μm and restoration of the foveolar pit) with BCVA≤70 letters (group 1: G1), CRFR with BCVA>70 letters (20/40) (G2), and persistent retinal fluid throughout the follow-up (G3)...
November 10, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29127949/effect-of-adding-dexamethasone-to-continued-ranibizumab-treatment-in-patients-with-persistent-diabetic-macular-edema-a-drcr-network-phase-2-randomized-clinical-trial
#7
Raj K Maturi, Adam R Glassman, Danni Liu, Roy W Beck, Abdhish R Bhavsar, Neil M Bressler, Lee M Jampol, Michele Melia, Omar S Punjabi, Hani Salehi-Had, Jennifer K Sun
Importance: Some eyes have persistent diabetic macular edema (DME) following anti-vascular endothelial growth factor (anti-VEGF) therapy for DME. Subsequently adding intravitreous corticosteroids to the treatment regimen might result in better outcomes than continued anti-VEGF therapy alone. Objective: To compare continued intravitreous ranibizumab alone with ranibizumab plus intravitreous dexamethasone implant in eyes with persistent DME. Design, Setting, and Participants: Phase 2 multicenter randomized clinical trial conducted at 40 US sites in 129 eyes from 116 adults with diabetes between February 2014 and December 2016...
November 11, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29127657/real-world-cost-savings-demonstrated-by-switching-patients-with-refractory-diabetic-macular-edema-to-intravitreal-fluocinolone-acetonide-iluvien-a-retrospective-cost-analysis-study
#8
Soon W Ch'ng, Alexander J Brent, Theodoros Empeslidis, Vasileios Konidaris, Somnath Banerjee
INTRODUCTION: It is hypothesized that using fluocinolone acetonide (FAc) implants such as Iluvien for the treatment of diabetic macular edema (DME) may reduce the total number of intravitreal injections and clinic visits, resulting in an overall treatment cost reduction. The primary aim of this study is to identify the real-world cost savings achievable in a tertiary National Health Service (NHS) hospital. METHODS: A retrospective cost analysis study was conducted...
November 10, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/29121449/solvent-effect-on-the-behavior-of-lithium-and-superoxide-ions-in-li-o2-battery-electrolyte
#9
Vladimir Smirnov, Sergey Kislenko
The molecular life of intermediates, namely O2- and Li+, produced during the discharge of aprotic Li-O2 batteries has been investigated by the MD simulation. This work is of potential interest in the development of new electrolytes for the Li-air batteries. We present the results on structure and stability of the Li+ and O2- solvation shells, as well as on thermodynamics and kinetics of the ions association reaction in the following solvents: dimethyl sulfoxide (DMSO), dimethoxyethane (DME), acetonitrile (ACN)...
November 9, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29120158/diabetic-macular-edema-traditional-and-novel-treatment
#10
Martina Tomić, Romano Vrabec, Tamara Poljičanin, Spomenka Ljubić, Lea Duvnjak
Diabetes is one of the leading public health problems worldwide. Diabetic macular edema (DME) is the main cause of vision loss in patients with diabetes. Ideal metabolic control of diabetes is the primary goal of treatment and the basic way of preventing and stopping the progression of DME. Although laser photocoagulation has been the standard treatment of DME for nearly three decades, superior outcomes can be achieved with novel, intravitreal anti-VEGF and steroid therapy. Novel treatment option for DME depends on visual acuity and location/extent of macular thickening based on optical coherence tomography scans...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29120156/diabetic-macular-edema-traditional-and-novel-treatment
#11
Martina Tomić, Romano Vrabec, Tamara Poljičanin, Spomenka Ljubić, Lea Duvnjak
Diabetes is one of the leading public health problems worldwide. Diabetic macular edema (DME) is the main cause of vision loss in patients with diabetes. Ideal metabolic control of diabetes is the primary goal of treatment and the basic way of preventing and stopping the progression of DME. Although laser photocoagulation has been the standard treatment of DME for nearly three decades, superior outcomes can be achieved with novel, intravitreal anti-VEGF and steroid therapy. Novel treatment option for DME depends on visual acuity and location/extent of macular thickening based on optical coherence tomography scans...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29118706/recurrent-diabetic-macular-edema-what-to-do
#12
Rita Santos Gonçalves, Carla Teixeira, Pedro Coelho
Diabetic macular edema (DME) is a leading cause of blindness in the working population. Herein, we report the case of a patient with recurrent DME for about 6 years, uncontrolled by several medical and surgical treatments, that was successfully treated with a single sustained-release fluocinolone acetonide intravitreal implant in her right eye. The affected eye had presented a visual acuity of 2/10 and a central macular thickness of 488 µm prior to the injection. After treatment with the fluocinolone acetonide intravitreal implant, the patient's right eye presented an improvement in best corrected visual acuity to 6/10 and a reduction of central macular thickness to 198 µm...
September 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29118493/experience-of-intravitreal-triamcinolone-acetonide-for-treatment-of-diabetic-macular-edema-among-omani-population
#13
Ahmed Al Hinai, Upender Krishen Wali, Tayseer Abdul Rasool, Syed G Rizvi
PURPOSE: The purpose of this study was to evaluate the outcome of intravitreal (IVT) triamcinolone in diabetic macular edema (DME). MATERIALS AND METHODS: A retrospective study of 42 eyes diagnosed clinically and supported with optical coherence tomography (OCT), with DME of more than 300 μm in thickness. All eyes were injected with a single IVT injection of preservative free triamcinolone acetonide (TA) with dose of 4 mg. Patients were subjected to visual acuity (VA) and OCT on each follow-up visit which was continued for 6 months...
September 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/29115994/exploring-venlafaxine-pharmacokinetic-variability-with-a-phenotyping-approach-a-multicentric-french-swiss-study-marvel-study
#14
Célia Lloret-Linares, Youssef Daali, Sylvie Chevret, Isabelle Nieto, Fanny Molière, Philippe Courtet, Florence Galtier, Raphaëlle-Marie Richieri, Sophie Morange, Pierre-Michel Llorca, Wissam El-Hage, Thomas Desmidt, Frédéric Haesebaert, Philippe Vignaud, Jerôme Holtzmann, Jean-Luc Cracowski, Marion Leboyer, Antoine Yrondi, Fabienne Calvas, Liova Yon, Philippe Le Corvoisier, Olivier Doumy, Kyle Heron, Damien Montange, Siamak Davani, Julien Déglon, Marie Besson, Jules Desmeules, Emmanuel Haffen, Frank Bellivier
BACKGROUND: It is well known that the standard doses of a given drug may not have equivalent effects in all patients. To date, the management of depression remains mainly empirical and often poorly evaluated. The development of a personalized medicine in psychiatry may reduce treatment failure, intolerance or resistance, and hence the burden and costs of mood depressive disorders. The Geneva Cocktail Phenotypic approach presents several advantages including the "in vivo" measure of different cytochromes and transporter P-gp activities, their simultaneous determination in a single test, avoiding the influence of variability over time on phenotyping results, the administration of low dose substrates, a limited sampling strategy with an analytical method developed on DBS analysis...
November 7, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29111509/structural-diversity-of-polynuclear-mgxoy-cores-in-magnesium-phenoxide-complexes
#15
Mikhail E Minyaev, Andrei V Churakov, Ilya E Nifant'ev
The binuclear complex bis(2,6-di-tert-butyl-4-methylphenolato)-1κO,2κO-(1,2-dimethoxyethane-1κ(2)O,O')bis(μ-phenylmethanolato-1:2κ(2)O:O)(tetrahydrofuran-2κO)dimagnesium(II), [Mg2(C7H7O)2(C15H23O)2(C4H8O)(C4H10O2)] or [(BHT)(DME)Mg(μ-OBn)2Mg(THF)(BHT)], (I), was obtained from the complex [(BHT)Mg(μ-OBn)(THF)]2 by substitution of one tetrahydrofuran (THF) molecule with 1,2-dimethoxyethane (DME) in toluene (BHT is O-2,6-(t)Bu2-4-MeC6H4 and Bn is benzyl). The trinuclear complex bis(2,6-di-tert-butyl-4-methylphenolato)-1κO,3κO-tetrakis(μ-2-methylphenolato)-1:2κ(4)O:O;2:3κ(4)O:O-bis(tetrahydrofuran)-1κO,3κO-trimagnesium(II), [Mg3(C7H7O)4(C15H23O)2(C4H8O)2] or [(BHT)2(μ-O-2-MeC6H4)4(THF)2Mg3], (II), was formed from a mixture of Bu2Mg, [(BHT)Mg((n)Bu)(THF)2] and 2-methylphenol...
November 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/29110201/dexamethasone-intravitreal-implant-in-diabetic-macular-edema-real-life-data-from-a-prospective-study-and-predictive-factors-for-visual-outcome
#16
Irini Chatziralli, Panagiotis Theodossiadis, Efstratios Parikakis, Eleni Dimitriou, Tina Xirou, George Theodossiadis, Stamatina Α Kabanarou
INTRODUCTION: The purpose of the study was to evaluate the long-term anatomical and functional outcomes in patients with diabetic macular edema (DME) treated with intravitreal dexamethasone implant and to determine the predictive factors for the final visual outcome. METHODS: The study included 54 patients with DME refractory to previous antivascular endothelial growth factor (anti-VEGF) who were treated with intravitreal dexamethasone implant. Predictive factors for visual outcome were assessed...
December 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29104958/prediction-of-anti-vegf-response-in-diabetic-macular-edema-after-1-injection
#17
Ankoor R Shah, Yoshihiro Yonekawa, Bozho Todorich, Lily Van Laere, Rehan Hussain, Maria A Woodward, Ashkan M Abbey, Jeremy D Wolfe
Purpose: With multiple anti-vascular endothelial growth factor and steroid therapies available for diabetic macular edema (DME), there is a need for early determination of the best treatment for a particular patient to prevent irreversible vision loss from chronic DME. In this study, we classify patients as responders or non-responders to anti-vascular endothelial growth factor (VEGF) monotherapy in the treatment of DME after a single anti-VEGF injection. Methods: The study was designed as a single center, retrospective, interventional case series...
May 2017: J Vitreoretin Dis
https://www.readbyqxmd.com/read/29091878/subthreshold-diode-micropulse-laser-versus-conventional-laser-photocoagulation-monotherapy-or-combined-with-anti-vegf-therapy-for-diabetic-macular-edema-a-bayesian-network-meta-analysis
#18
REVIEW
Ying Wu, Pu Ai, Zisheng Ai, Guotong Xu
AIMS: To assess the effects of laser photocoagulation as monotherapy or adjuvant therapy for the treatment of DME. METHODS: A search of the Cochrane Library, Pubmed, Embase, and the clinicaltrial.gov registry for randomized clinical trials comparing any two treatments of interest (SDMLP monotherapy, CLP monotherapy, CLP plus anti-VEGF therapy) was performed. Data were collected and pooled by Bayesian network meta-analyses which accounts for both direct and indirect comparisons...
October 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29090846/the-relation-study-efficacy-and-safety-of-ranibizumab-combined-with-laser-photocoagulation-treatment-versus-laser-monotherapy-in-npdr-and-pdr-patients-with-diabetic-macular-oedema
#19
Gabriele E Lang, Sandra Liakopoulos, Jessica Vögeler, Claudia Weiß, Georg Spital, Maria-Andreea Gamulescu, Chris Lohmann, Peter Wiedemann
PURPOSE: To assess efficacy and safety of intravitreal ranibizumab 0.5 mg plus laser (COMBI) versus laser monotherapy (LASER) in patients with visual impairment due to diabetic macular oedema (DME) in either nonproliferative diabetic retinopathy (NPDR) or proliferative diabetic retinopathy (PDR) and to analyse the relevance of inner versus outer retinal thickness. METHODS: In this double-masked, multicentre phase IIIb study, patients (N = 128) were randomized (2:1) to receive COMBI (n = 85) versus LASER (n = 43)...
November 1, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29082448/aflibercept-in-diabetic-macular-edema-refractory-to-previous-bevacizumab-outcomes-and-predictors-of-success
#20
Rita Laiginhas, Marta Inês Silva, Vitor Rosas, Susana Penas, Vitor Adriano Fernandes, Amândio Rocha-Sousa, Ângela Carneiro, Fernando Falcão-Reis, Manuel Sousa Falcão
PURPOSE: To evaluate functional and anatomical outcomes after aflibercept in patients with diabetic macular edema (DME) with poor response to bevacizumab. METHODS: We retrospectively reviewed patients with DME recalcitrant to bevacizumab who were switched to aflibercept between January and December 2015. All patients had a minimal follow-up of three months before the conversion and underwent at least three injections of bevacizumab. Functional outcome consisted in best corrected visual acuity (VA)...
October 29, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
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