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https://www.readbyqxmd.com/read/28527040/fundamental-principles-of-an-anti-vegf-treatment-regimen-optimal-application-of-intravitreal-anti-vascular-endothelial-growth-factor-therapy-of-macular-diseases
#1
REVIEW
Paolo Lanzetta, Anat Loewenstein
BACKGROUND: Intravitreal anti-vascular endothelial growth factor (VEGF) therapy is now considered the gold standard for the treatment of various retinal disorders. As therapy has evolved, so too have the treatment regimens employed by physicians in clinical practice; however, visual outcomes observed in the real world have typically not reflected those reported in clinical trials. Possible reasons for this include a lack of consensus on treatment regimens and a lack of clarity about what the aims of treatment should be...
May 19, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28527030/intravitreal-erythropoietin-injection-in-late-stage-optic-neuropathy-a-safety-study-on-human
#2
Ugur Acar, Bekir Kucuk, Mehmet Koray Sevinc, Seckin Aykas, Mesut Erdurmus, Gungor Sobaci
AIM: To evaluate the whether intravitreal erythropoietin (EPO) administration has any beneficial or adverse effect in patients with late-stage optic neuropathy (ON) or not. METHODS: The study examined 16 eyes of 16 patients who had late-stage ON and ≥1/20 best-corrected visual acuity (BCVA) in their affected eye. There were nonarteritic ischemic ON in 10 (62.5%) eyes, traumatic ON in 4 (25.0%) eyes and methanol-induced ON in 2 (12.5%) eyes. Using pars plana approach, 2000 IU/0...
May 19, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28526489/intravitreous-injection-of-aav2-sflt01-in-patients-with-advanced-neovascular-age-related-macular-degeneration-a-phase-1-open-label-trial
#3
Jeffrey S Heier, Saleema Kherani, Shilpa Desai, Pravin Dugel, Shalesh Kaushal, Seng H Cheng, Cheryl Delacono, Annie Purvis, Susan Richards, Annaig Le-Halpere, John Connelly, Samuel C Wadsworth, Rafael Varona, Ronald Buggage, Abraham Scaria, Peter A Campochiaro
BACKGROUND: Long-term intraocular injections of vascular endothelial growth factor (VEGF)-neutralising proteins can preserve central vision in many patients with neovascular age-related macular degeneration. We tested the safety and tolerability of a single intravitreous injection of an AAV2 vector expressing the VEGF-neutralising protein sFLT01 in patients with advanced neovascular age-related macular degeneration. METHODS: This was a phase 1, open-label, dose-escalating study done at four outpatient retina clinics in the USA...
May 16, 2017: Lancet
https://www.readbyqxmd.com/read/28524835/collapsin-response-mediator-protein-2-induced-retinal-ischemic-injury-in-a-novel-mice-model-of-ocular-ischemia-syndrome
#4
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/28524135/-selective-symptomatic-therapy-of-macular-edema-due-to-occlusive-processes-in-retinal-venous-system
#5
M M Bikbov, R R Fayzrakhmanov, T R Gil'manshin
AIM: to evaluate the effect of dexamethasone intravitreal implant on the functional state of the eye in macular edema associated with central retinal vein occlusion. MATERIAL AND METHODS: The study included two groups of patients: group 1 (control group) - 8 patients (16 eyes) without ocular pathology and group 2 (study group) - 8 patients (8 eyes) with macular edema on the background of newly diagnosed thrombosis of the central retinal vein. All the patients from the study group underwent insertion of an intravitreal dexamethasone implant - Ozurdex...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28523456/bone-marrow-mesenchymal-stem-cell-administration-significantly-improves-outcome-after-retinal-ischemia-in-rats
#6
Biji Mathew, Jacqueline N Poston, John C Dreixler, Leianne Torres, Jasmine Lopez, Ruth Zelkha, Irina Balyasnikova, Maciej S Lesniak, Steven Roth
PURPOSE: Ischemia-associated retinal degeneration is one of the leading causes of vision loss, and to date, there are no effective treatment options. We hypothesized that delayed injection of bone-marrow stem cells (BMSCs) 24 h after the onset of ischemia could effectively rescue ischemic retina from its consequences, including apoptosis, inflammation, and increased vascular permeability, thereby preventing retinal cell loss. METHODS: Retinal ischemia was induced in adult Wistar rats by increasing intraocular pressure (IOP) to 130-135 mmHg for 55 min...
May 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28520642/inflammatory-choroidal-neovascular-membrane-long-term-visual-and-anatomical-outcomes-after-intravitreal-anti-vascular-endothelial-growth-factor-therapy
#7
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/28520639/wrinkled-vascularized-retinal-pigment-epithelium-detachment-prognosis-after-intravitreal-anti-vegf-therapy
#8
Delphine Lam, Oudy Semoun, Rocio Blanco-Garavito, Camille Jung, Diem T Nguyen, Eric H Souied, Gerard Mimoun
BACKGROUND/PURPOSE: Neovascular age-related macular degeneration (nAMD) is frequently associated with vascularized pigment epithelial detachment (v-PED). We observed a peculiar characteristic of v-PED characterized by small lacy folds of the retinal pigment epithelium, appearing as a wrinkled PED (w-PED) on spectral domain optical coherence tomography (SD-OCT). Our purpose was to describe the visual prognosis and number of intravitreal injections in w-PED compared with non-w-PED. METHODS: In this retrospective, case-control series, we reviewed retrospectively medical records of 52 eyes of 51 patients who were consecutively included between November 1 and 30, 2015 with a previous minimum 3-year follow-up...
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
#9
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/28513493/inflammatory-choroidal-neovascularization-in-indian-eyes-etiology-clinical-features-and-outcomes-to-anti-vascular-endothelial-growth-factor
#10
Rupak Roy, Kumar Saurabh, Aditya Bansal, Amitabh Kumar, Anindya Kishore Majumdar, Swakshyar Saumya Paul
BACKGROUND AND OBJECTIVES: The aim was to study the clinical profile of inflammatory choroidal neovascularization (CNV) and its treatment response to intravitreal bevacizumab or ranibizumab on pro re nata (PRN) basis in Indian eyes. MATERIALS AND METHODS: This was a retrospective case series of consecutive patients with inflammatory CNV treated with anti-vascular endothelial growth factor (anti-VEGF) in a tertiary eye care center in Eastern India between 2009 and 2014...
April 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28512425/long-term-follow-up-of-polypoidal-choroidal-vasculopathy-secondary-to-angioid-streaks-treated-by-intravitreal-aflibercept-and-ranibizumab
#11
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/28511420/effect-of-intraperitoneal-injection-of-saffron-on-the-treatment-of-experimental-endotoxin-induced-uveitis-in-the-rabbit
#12
Mohammad Reza Talebnejad, Kazem Soltanzadeh, Eghtedari Masoomeh, Masoud Yasemi, Mohammad Reza Khalili, Sherafat Maryam
INTRODUCTION: Saffron with scientific name of "Crocus sativus" from the family "Iridaceae" is a plant without stem and root. Antioxidative and immunomodulatory effects of saffron has been demonstrated in different studies. AIM: To assess the effects of saffron in the treatment on Lipopolysaccharide (LPS) induced uveitis in the rabbit. MATERIALS AND METHODS: Thirty healthy female New Zealand white rabbits were prepared. LPS induced uveitis was confirmed via slit lamp examination 24 hours after intravitreal injection of Salmonella typhimurium LPS endotoxin in the right eye of all rabbits...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28510630/local-and-systemic-inflammatory-biomarkers-of-diabetic-retinopathy-an-integrative-approach
#13
Stela Vujosevic, Rafael Simó
Purpose: To review the usefulness of local and systemic inflammatory biomarkers of diabetic retinopathy (DR) to implement a more personalized treatment. Methods: An integrated research (from ophthalmologist and diabetologist point of view) of most significant literature on serum, vitreous, and aqueous humor (AH) biochemical biomarkers related to inflammation at early and advanced stages of DR (including diabetic macular edema [DME] and proliferative DR) was performed...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28510482/rod-outer-segment-development-influences-aav-mediated-photoreceptor-transduction-after-subretinal-injection
#14
Lolita Petit, Shan Ma, Shun-Yun Cheng, Guangping Gao, Claudio Punzo
Vectors based on the adeno-associated virus (AAV) are currently the preferred tools for delivering genes to photoreceptors (PR) in small and large animals. AAVs have been applied successfully in various models of PR dystrophies. However, unknown barriers still limit AAV's efficient application in several forms of severe PR degenerations, due to insufficient transgene expression and/or treated cells at the time of injection. Optimizations of PR gene therapy strategies will likely benefit from the identification of the cellular factors that influence PR transduction...
May 16, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28508561/diclofenac-for-pain-associated-with-intravitreal-injections-a-prospective-randomized-placebo-controlled-study
#15
Olga E Makri, Foteini N Tsapardoni, Dionisios D Pagoulatos, Nikolaos Pharmakakis, Constantine D Georgakopoulos
IMPORTANCE: Intravitreal injections (IVI) are often associated with pain. BACKGROUND: To evaluate the analgesic effect of diclofenac in patients undergoing IVI. DESIGN: Single-centre, prospective, randomized, triple-arm, placebo-controlled, interventional study in the University Hospital of Patras. PARTICIPANTS: Seventy-four patients. METHODS: Group 1 (n = 25) received topical diclofenac 45 minutes before IVI, Group 2 (n = 25) received oral diclofenac 4 hours before IVI and topical diclofenac while Group 3 (n = 24) received placebo before IVI...
May 15, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28501709/calcium-ion-coordinated-dexamethasone-supramolecular-hydrogel-as-therapeutic-alternative-for-control-of-non-infectious-uveitis
#16
Wei Wu, Zhaoliang Zhang, Taotao Xiong, Wenguang Zhao, Rou Jiang, Hao Chen, Xingyi Li
Supramolecular hydrogel formed by the self-assembly of therapeutic agents have received considerable attention due to its high drug payload, carrier-free features. Herein, we constructed a dexamethasone sodium phosphate (Dex) supramolecular hydrogel in combination of Dex and calcium ion (Ca(2+)) and further demonstrated its therapeutic efficacy in the control of ocular inflammation. The developed supramolecular hydrogel was thoroughly characterized by rheology, TEM, FTIR and XRD. Calcium ions and Dex concentration had markedly influence on the sol-gel transition behavior of hydrogel and the proposed Dex supramolecular hydrogel displayed thixotropic property...
May 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28499055/sequential-sterile-intraocular-inflammation-associated-with-consecutive-intravitreal-injections-of-aflibercept-and-ranibizumab
#17
Dilraj S Grewal, Tayler Schwartz, Sharon Fekrat
The authors report the unique response of two patients treated for cystoid macular edema (CME) secondary to central retinal vein occlusion (CRVO) who developed sequential episodes of likely sterile inflammatory responses following separate intravitreal injections of aflibercept (Eylea; Regeneron, Tarrytown, NY) and ranibizumab (Lucentis; Genentech, South San Francisco, CA) despite multiple previous uneventful injections for CME secondary to CRVO. Following the twenty-fifth aflibercept and seventh ranibizumab injection, two patients developed an acute inflammatory response, which was treated empirically with intravitreal antibiotics and topical and oral steroids (in Case 2)...
May 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28498374/ranibizumab-pretreatment-in-diabetic-vitrectomy-a-pilot-randomised-controlled-trial-the-radivit-study
#18
O Comyn, L Wickham, D G Charteris, P M Sullivan, E Ezra, Z Gregor, G W Aylward, L da Cruz, D Fabinyi, T Peto, M Restori, W Xing, C Bunce, P G Hykin, J W Bainbridge
PurposeOur aim was to evaluate the impact of intravitreal ranibizumab pretreatment on the outcome of vitrectomy surgery for advanced proliferative diabetic retinopathy. The objective was to determine the feasibility of a subsequent definitive trial and estimate the effect size and variability of the outcome measure.Patients and methodsWe performed a pilot randomised double-masked single-centre clinical trial in 30 participants with tractional retinal detachment associated with proliferative diabetic retinopathy...
May 12, 2017: Eye
https://www.readbyqxmd.com/read/28496301/short-term-outcomes-in-patients-with-branch-retinal-vein-occlusion-who-received-intravitreal-aflibercept-with-or-without-intravitreal-ranibizumab
#19
Yoshihito Sakanishi, Ayumi Usui-Ouchi, Kazunori Tamaki, Keitaro Mashimo, Rei Ito, Nobuyuki Ebihara
PURPOSE: The purpose of this study was to determine the short-term outcomes for patients who received intravitreal aflibercept (IVA) with or without intravitreal ranibizumab (IVR) for macular edema (ME) due to branch retinal vein occlusion (BRVO). PATIENTS AND METHODS: Patients received IVA for ME due to BRVO. Patients who initially received IVA were defined as the treatment-naïve group and those who were switched from IVR to IVA after ME recurrence were defined as the switching group...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28496108/alpha7-nicotinic-acetylcholine-receptor-agonist-promotes-retinal-ganglion-cell-function-via-modulating-gabaergic-presynaptic-activity-in-a-chronic-glaucomatous-model
#20
Xujiao Zhou, Yun Cheng, Rong Zhang, Gang Li, Boqi Yang, Shenghai Zhang, Jihong Wu
Alpha-7 nicotinic acetylcholine receptor (α7-nAChR) agonists can prevent glutamate-induced excitotoxicity in cultured retinal ganglion cells (RGCs). However, the neuroprotective effects and the mechanism of action of PNU-282987, an α7-nAChR agonist, in a chronic in vivo rat glaucoma model are poorly understood. We found that elevated intraocular pressure (IOP) downregulated retinal α7-nAChR expression. Electroretinography revealed that the amplitude of the photopic negative response (PhNR) decreased in parallel with the loss of RGCs caused by elevated IOP...
May 11, 2017: Scientific Reports
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