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https://www.readbyqxmd.com/read/28334720/intravitreal-dexamethasone-implant-versus-intravitreal-ranibizumab-for-the-treatment-of-macular-edema-secondary-to-retinal-vein-occlusion-in-a-chinese-population
#1
Xiaoya Gu, Xiaobing Yu, Shuang Song, Hong Dai
BACKGROUND: The aim of this work was to compare the efficacy of intravitreal dexamethasone implant (Ozurdex) and intravitreal ranibizumab (Lucentis) in the treatment of macular edema (ME) caused by retinal vein occlusion (RVO). METHODS: Thirty-two ME cases treated with Ozurdex and 32 ME cases treated with ranibizumab were enrolled, with 26 central (C)RVO and 6 branch (B)RVO subjects in each group. We compared the results of best-corrected visual acuity (BCVA), central retinal thickness, number of injections, and intraocular pressure (IOP) at 1, 2, 3, and 6 months after injection...
March 24, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28333879/intravitreal-aflibercept-injection-for-choroidal-neovascularization-due-to-presumed-ocular-histoplasmosis-syndrome-the-handle-study
#2
Brian W Toussaint, John W Kitchens, Dennis M Marcus, Daniel M Miller, Megan L Kingdon, Diana Holcomb, Ken Ivey
PURPOSE: To evaluate intravitreal aflibercept injection (IAI) in patients with presumed ocular histoplasmosis syndrome and choroidal neovascularization. METHODS: Open-label randomized Phase I/II study of IAI in patients with presumed ocular histoplasmosis syndrome-related choroidal neovascularization. Thirty-nine eyes from 39 patients were randomized in a 1:1 ratio to 2 groups. The Sustained Group eyes (n = 19) underwent monthly IAI for 3 months, then mandatory IAI every 2 months for 12 months (with an option for monthly PRN dosing, if needed)...
March 22, 2017: Retina
https://www.readbyqxmd.com/read/28333851/contralateral-vision-loss-after-endonasal-dacryocystorhinostomy-a-case-report-of-purtscher-like-retinopathy-and-treatment-with-intravitreal-tissue-plasminogen-activator
#3
Hulya Gungel, Cigdem Altan, Belma Karini, Fatma E Ozdemir, Ozlem O Celebi
PURPOSE: To present a case of a patient with contralateral vision loss as a result of Purtscher-like retinopathy after an endonasal dacryocystorhinostomy and treatment with intravitreal tissue plasminogen activator injection. METHODS AND RESULTS: A 51-year-old woman who underwent a left endonasal dacryocystorhinostomy was referred with a complaint of decreased vision 1 day after surgery in her right eye. At the initial examination, the visual acuity of her right eye was hand motion...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28332616/long-acting-protein-drugs-for-the-treatment-of-ocular-diseases
#4
Joy G Ghosh, Andrew A Nguyen, Chad E Bigelow, Stephen Poor, Yubin Qiu, Nalini Rangaswamy, Richard Ornberg, Brittany Jackson, Howard Mak, Tucker Ezell, Vania Kenanova, Elisa de la Cruz, Ana Carrion, Bijan Etemad-Gilbertson, Roxana Garcia Caro, Kan Zhu, Vinney George, Jirong Bai, Radhika Sharma-Nahar, Siyuan Shen, Yiqin Wang, Kulandayan K Subramanian, Elizabeth Fassbender, Michael Maker, Shawn Hanks, Joanna Vrouvlianis, Barrett Leehy, Debby Long, Melissa Prentiss, Viral Kansara, Bruce Jaffee, Thaddeus P Dryja, Michael Roguska
Protein drugs that neutralize vascular endothelial growth factor (VEGF), such as aflibercept or ranibizumab, rescue vision in patients with retinal vascular diseases. Nonetheless, optimal visual outcomes require intraocular injections as frequently as every month. Here we report a method to extend the intravitreal half-life of protein drugs as an alternative to either encapsulation or chemical modifications with polymers. We combine a 97-amino-acid peptide of human origin that binds hyaluronan, a major macromolecular component of the eye's vitreous, with therapeutic antibodies and proteins...
March 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28332380/angiographically-documented-macular-ischemia-after-single-bevacizumab-for-macular-edema-secondary-to-central-retinal-vein-occlusion
#5
Kyou Ho Lee, Eui Chun Kang, Hyoung Jun Koh
This report describes a case of angiographically documented foveal avascular zone (FAZ) enlargement after a single intravitreal injection of bevacizumab for macular edema secondary to central retinal vein occlusion (CRVO). A 71-year-old female was treated with an intravitreal bevacizumab injection for macular edema following CRVO. Despite successfully decreased edema one month after injection, the postinjection best-corrected visual acuity immediately decreased from 20/40 to 20/1000 (Snellen equivalent). The FAZ area increased from 0...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28325857/treatment-trends-for-retinopathy-of-prematurity-in-the-uk-active-surveillance-study-of-infants-at-risk
#6
Gillian G W Adams, Catey Bunce, Wen Xing, Lucilla Butler, Vernon Long, Aravind Reddy, Annegret H Dahlmann-Noor
OBJECTIVES: To estimate the incidence of severe retinopathy of prematurity (ROP) requiring treatment and describe current treatment patterns in the UK. DESIGN: Nationwide population-based case ascertainment study via the British Ophthalmic Surveillance Unit and a national collaborative ROP special interest group. Practitioners completed a standardised case report form (CRF). SETTING: All paediatric ophthalmologists providing screening and/or treatment for retinopathy in the UK were invited to take part...
March 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28325297/engineering-of-pedf-expressing-primary-pigment-epithelial-cells-by-the-sb-transposon-system-delivered-by-pfar4-plasmids
#7
Gabriele Thumann, Nina Harmening, Cécile Prat-Souteyrand, Corinne Marie, Marie Pastor, Attila Sebe, Csaba Miskey, Laurence D Hurst, Sabine Diarra, Martina Kropp, Peter Walter, Daniel Scherman, Zoltán Ivics, Zsuzsanna Izsvák, Sandra Johnen
Neovascular age-related macular degeneration (nvAMD) is characterized by choroidal blood vessels growing into the subretinal space, leading to retinal pigment epithelial (RPE) cell degeneration and vision loss. Vessel growth results from an imbalance of pro-angiogenic (e.g., vascular endothelial growth factor [VEGF]) and anti-angiogenic factors (e.g., pigment epithelium-derived factor [PEDF]). Current treatment using intravitreal injections of anti-VEGF antibodies improves vision in about 30% of patients but may be accompanied by side effects and non-compliance...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28325294/therapeutic-effect-of-novel-single-stranded-rnai-agent-targeting-periostin-in-eyes-with-retinal-neovascularization
#8
Takahito Nakama, Shigeo Yoshida, Keijiro Ishikawa, Yuki Kubo, Yoshiyuki Kobayashi, Yedi Zhou, Shintaro Nakao, Toshio Hisatomi, Yasuhiro Ikeda, Kazumasa Takao, Kazunori Yoshikawa, Akira Matsuda, Junya Ono, Shoichiro Ohta, Kenji Izuhara, Akira Kudo, Koh-Hei Sonoda, Tatsuro Ishibashi
Retinal neovascularization (NV) due to retinal ischemia remains one of the principal causes of vision impairment in patients with ischemic retinal diseases. We recently reported that periostin (POSTN) may play a role in the development of preretinal fibrovascular membranes, but its role in retinal NV has not been determined. The purpose of this study was to examine the expression of POSTN in the ischemic retinas of a mouse model of oxygen-induced retinal NV. We also studied the function of POSTN on retinal NV using Postn KO mice and human retinal endothelial cells (HRECs) in culture...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28324113/microrna-expression-patterns-involved-in-amyloid-beta-induced-retinal-degeneration
#9
Peirong Huang, Junran Sun, Fenghua Wang, Xueting Luo, Jingyang Feng, Qing Gu, Te Liu, Xiaodong Sun
Purpose: Dry age-related macular degeneration (AMD) is characterized by the accumulation of drusen under Bruch's membrane, and amyloid beta (Aβ) is speculated to be one of the key pathologic factors. While the detrimental effects of Aβ on retinas have been widely explored, Aβ-induced epigenetic regulatory changes have yet to be fully investigated. We therefore aimed to identify the microRNA (miRNA) expression profiles in an Aβ-induced mouse model of retinal degeneration. Methods: C57BL/6 mice were intravitreally injected with Aβ1-40 or PBS and the eye tissues were collected for hematoxylin and eosin (H&E) staining, apoptosis immunofluorescence staining, and miRNA profiling...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28323869/tyrosine-mutated-aav2-mediated-shrna-silencing-of-pten-promotes-axon-regeneration-of-adult-optic-nerve
#10
ZhengRu Huang, ZiZhong Hu, Ping Xie, QingHuai Liu
Activating PI3K/AKT/mTOR signaling pathway via deleting phosphatase and tensin homolog (PTEN) has been confirmed to enhance intrinsic growth capacity of neurons to facilitate the axons regeneration of central nervous system after injury. Considering conditional gene deletion is currently not available in clinical practice, we exploited capsid residue tyrosine 444 to phenylalanine mutated single-stranded adeno-associated virus serotype 2 (AAV2) as a vector delivering short hairpin RNA to silence PTEN to promote retinal ganglion cells (RGCs) survival and axons regeneration in adult rat optic nerve axotomy paradigm...
2017: PloS One
https://www.readbyqxmd.com/read/28318829/toll-like-receptor-4-inhibitor-protects-against-retinal-ganglion-cell-damage-induced-by-optic-nerve-crush-in-mice
#11
Yukimichi Nakano, Masamitsu Shimazawa, Kazuki Ojino, Hiroshi Izawa, Hiroto Takeuchi, Yuki Inoue, Kazuhiro Tsuruma, Hideaki Hara
Toll-like receptor 4 (TLR4) plays key roles in innate immune responses and inflammatory reactions. TAK-242 (resatorvid) is a small-molecule cyclohexene derivative that selectively inhibits TLR4 signaling pathways and suppresses inflammatory reactions. Here we investigated the protective effects of TAK-242 against optic nerve crush (ONC) which induces axonal injury like glaucoma in mice. TAK-242 was injected intravitreally immediately after ONC. The effect of TAK-242 was evaluated by measuring the number of fluorogold-labeled retinal ganglion cells (RGCs) at 10 days after ONC...
March 2, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28318718/-treatment-of-macular-edema-comparison-of-efficacy-and-tolerability-of-subconjunctival-triamcinolone-injections-sub-tenon-s-triamcinolone-injections-and-intravitreal-dexamethasone-implant
#12
C Carbonnière, C Couret, A Blériot, O Lebreton, H Massé, G Le Meur, P Lebranchu, M Weber
The area of uveitis is related to numerous pathological entities. One of the main causes of decreased visual acuity in these patients is macular edema. One aspect of the treatment includes cortosteroids used peri- and intra-ocularly. MATERIALS AND METHODS: The goal of our work was to estimate the criteria of efficacy (on improvement in visual acuity and macular edema, as well as time to recurrence) and safety (on intraocular pressure and cataract) of these various routes of administration of corticosteroid after a single injection...
March 16, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28318714/-ocular-hypertension-after-intravitreal-injection-foreword
#13
EDITORIAL
P Denis, P-J Pisella
No abstract text is available yet for this article.
March 16, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28318344/clinical-outcomes-of-intravitreal-preservative-free-triamcinolone-preparation-triesence%C3%A2-for-cystoid-macular-oedema-and-inflammation-in-patients-with-uveitis
#14
Laura R Steeples, Nitin Anand, Jiten Moraji, Nicholas P Jones
PURPOSE: To assess the outcomes of intravitreal benzyl alcohol-free triamcinolone acetonide suspension in uveitis-related macular oedema. METHODS: Single-center retrospective cohort study of 66 injections to 44 eyes of 40 patients. Uveitis diagnosis, systemic and local therapy, intraocular pressure (IOP), central retinal thickness (CRT), number of injections, time to re-injection and side-effects were noted during 6-months minimum follow-up. RESULTS: Sixty eight percent of eyes received a single injection...
March 20, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28317920/kus121-a-vcp-modulator-attenuates-ischemic-retinal-cell-death-via-suppressing-endoplasmic-reticulum-stress
#15
Masayuki Hata, Hanako O Ikeda, Chinami Kikkawa, Sachiko Iwai, Yuki Muraoka, Tomoko Hasegawa, Akira Kakizuka, Nagahisa Yoshimura
Ischemic neural damages cause several devastating diseases, including brain stroke and ischemic retinopathies, and endoplasmic reticulum (ER) stress has been proposed to be the underlying mechanism of the neuronal cell death of these conditions. We previously synthesized Kyoto University substances (KUSs) as modulators of valosin-containing protein (VCP); KUSs inhibit VCP ATPase activity and protect cells from different cell death-inducing insults. Here, we examined the efficacy of KUS121 in a rat model of retinal ischemic injury...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28316837/combination-of-navigated-macular-laser-photocoagulation-and-anti-vegf-therapy-precise-treatment-for-macular-edema-under-dry-retinal-conditions
#16
Ernest V Boiko, Dmitrii S Maltsev
Purpose. To compare the controllability of navigated macular laser photocoagulation (MLP) in dry versus edematous retina and validate that pretreatment diagnostic images can be used as basis for navigated MLP after the macular edema (ME) has been resolved. Materials and Methods. Group 1 was divided into subgroup 1 (dry retina MLP) and subgroup 2 (MLP in ME) for comparisons of laser-burn diameters. In group 2, the areas and locations of ME before an intravitreal injection of anti-VEGF (IVAV) were compared with those of recurrent ME...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28316197/-inhibitory-effect-of-insulin-like-growth-factor-binding-protein-related-protein-1-on-retinal-angiogenesis-via-erk-signaling-pathway
#17
P Zhang, H Wang, H Cao, X Xu, T Sun
Objective: To explore the inhibitory effect of insulin-like growth factor binding protein-related protein 1 (IGFBP-rP1), a novel anti-angiogenic factor, on retinal angiogenesis and its underlying molecular mechanisms. Methods: Experimental study. C57BL/6J mice were classified into three groups: control group (n=24), oxygen-induced retinopathy (OIR) non-intervention group (n=24) and OIR intervention group (n=72). The OIR mouse model was established using improved Smith's methods (n= 96). Twelve-day-old mice in the OIR intervention group were randomly assigned into three groups receiving intravitreal injection of recombinant mouse IGFBP-rP1 (50 μg/L, 100 μg/L and 200 μg/L, respectively)...
March 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28315677/rimonabant-a-selective-cannabinoid1-receptor-antagonist-protects-against-light-induced-retinal-degeneration-in-vitro-and-in-vivo
#18
Tomoyo Imamura, Kazuhiro Tsuruma, Yuki Inoue, Tomohiro Otsuka, Yuta Ohno, Shiho Ogami, Shinsaku Yamane, Masamitsu Shimazawa, Hideaki Hara
The endocannabinoid system is involved in some neurodegenerative diseases such as Alzheimer's disease. An endogenous constellation of proteins related to cannabinoid1 receptor signaling, including free fatty acids, diacylglycerol lipase, and N-acylethanolamine-hydrolyzing acid amidase, are localized in the murine retina. Moreover, the expression levels of endogenous agonists of cannabinoid receptors are changed in the vitreous fluid. However, the role of the endocannabinoid system in the retina, particularly in the light-induced photoreceptor degeneration, remains unknown...
March 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28306392/effect-of-syringe-design-on-the-accuracy-and-precision-of-intravitreal-injections-of-anti-vegf-agents
#19
Elad Moisseiev, Jolene Rudell, Eric V Tieu, Glenn Yiu
PURPOSE: To evaluate the accuracy and precision of different syringe designs for intravitreal injection of anti-VEGF agents. METHODS: Volume output was measured from three syringe designs-1) 1.0 mL tuberculin syringe, 2) 1.0 mL syringe with low dead space plunger, and 3) 0.5 mL low-volume syringe-to deliver 50 µL of bevacizumab, ranibizumab, or aflibercept, each repeated four times by three different physicians for 108 total simulated injections. Volume output was calculated from difference in syringe weight before and after expelling the drug...
March 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28304388/pirfenidone-inhibits-post-traumatic-proliferative-vitreoretinopathy
#20
B N M K Khanum, R Guha, V P Sur, S Nandi, S K Basak, A Konar, S Hazra
PurposeThe purpose of the study was to evaluate the efficacy and safety of intravitreal pirfenidone for inhibition of proliferative vitreoretinopathy (PVR) in a model of penetrating ocular injury.Patients and methodsPenetrating trauma was induced on the retina of rabbit and treated either with 0.1 ml of phosphate-buffered saline (PBS) or 0.1 ml of 0.5% pirfenidone, and development of PVR was evaluated clinically and graded after 1 month. Histopathology and immunohistochemistry with transforming growth factor beta (TGFβ), alpha smooth muscle actin (αSMA), and collagen-1 were performed to assess the fibrotic changes...
March 17, 2017: Eye
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