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choroidal neovascularization

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https://www.readbyqxmd.com/read/29234687/delivery-of-cr2-fh-using-aav-vector-therapy-as-treatment-strategy-in-the-mouse-model-of-choroidal-neovascularization
#1
Gloriane Schnabolk, Nathaniel Parsons, Elisabeth Obert, Balasubramaniam Annamalai, Cecile Nasarre, Stephen Tomlinson, Alfred S Lewin, Bärbel Rohrer
Complement activation plays a significant role in age-related macular degeneration (AMD) pathogenesis, and polymorphisms interfering with factor H (fH) function, a complement alternative pathway (AP) inhibitor, are associated with increased AMD risk. We have previously validated an AP inhibitor, a fusion protein consisting of a complement receptor 2 fragment linked to the inhibitory domain of fH (CR2-fH) as an efficacious treatment for choroidal neovascularization (CNV) when delivered intravenously. Here we tested an alternative approach of AAV-mediated delivery (AAV5-VMD2-CR2-fH or AAV5-VMD2-mCherry) using subretinal delivery in C57BL/6J mice...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29234364/eghb010-a-standardized-extract-of-paeoniae-radix-and-glycyrrhizae-radix-inhibits-vegf-induced-tube-formation-in-vitro-and-retinal-vascular-leakage-and-choroidal-neovascularization-in-vivo
#2
Eunsoo Jung, Wookwon Jung, Su-Bin Park, Chan-Sik Kim, Jin Sook Kim, Junghyun Kim
EGHB010 is a hot water extract of the rhizome mixture of Paeonia lactiflora Pallas and Glycyrrhiza uralensis Fisch. Choroidal neovascularization (CNV) and vascular leakage are the common pathophysiologies of age-related macular degeneration. In this study, we aimed to evaluate the effect of EGHB010 on retinal vascular leakage and laser-induced CNV in a rat model. Vascular endothelial growth factor- (VEGF-) induced tube formation was assayed in human retinal microvascular endothelial cells. Intravitreal VEGF-induced blood-retinal barrier breakdown was assayed in Sprague-Dawley rats...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29232336/comparison-among-different-diagnostic-methods-in-the-study-of-type-and-activity-of-choroidal-neovascular-membranes-in-age-related-macular-degeneration
#3
Vittoria Ravera, Andrea Giani, Marco Pellegrini, Marta Oldani, Alessandro Invernizzi, Elisa Carini, Mario Cigada, Ferdinando Bottoni, Giovanni Staurenghi
PURPOSE: To determine interobserver and intraobserver agreement in classifying the subtypes of choroidal neovascularization (CNV) and the decision of retreatment in patients affected by exudative age-related macular degeneration. Different imaging techniques were evaluated individually and compared with multiimaging. METHODS: Fifty-two patients with naive CNV in age-related macular degeneration were evaluated after 3 monthly intravitreal injections of ranibizumab...
December 8, 2017: Retina
https://www.readbyqxmd.com/read/29230338/optical-coherence-tomography-angiography-of-punctate-inner-choroidopathy
#4
Blake M Hampton, Christopher M Aderman, Harry W Flynn, Jayanth Sridhar
Purpose: To report a case of bilateral choroidal neovascularization (CNV) in punctate inner choroidopathy (PIC) visualized utilizing optical coherence tomography angiography (OCT-A). Methods: Case report. Results: A 29-year-old woman presented with new visual symptoms in both eyes. Fundoscopic exam revealed bilateral multifocal, small, well-defined lesions consistent with PIC. Optical coherence tomography demonstrated subretinal fluid and retinal pigment epithelium detachments (RPEDs) in both eyes...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29225458/antiangiogenic-effect-of-dasatinib-in-murine-models-of-oxygen-induced-retinopathy-and-laser-induced-choroidal-neovascularization
#5
Songyi Seo, Wonhee Suh
Purpose: Vascular endothelial growth factor (VEGF) is a principal mediator of pathological ocular neovascularization, which is the leading cause of blindness in various ocular diseases. As Src, a non-receptor tyrosine kinase, has been implicated as one of the major signaling molecules in VEGF-mediated neovascularization, the present study aimed to investigate whether dasatinib, a potent Src kinase inhibitor, could suppress pathological ocular neovascularization in murine models of oxygen-induced retinopathy (OIR) and choroidal neovascularization (CNV)...
2017: Molecular Vision
https://www.readbyqxmd.com/read/29224928/association-of-rare-predicted-loss-of-function-variants-in-cellular-pathways-with-sub-phenotypes-in-age-related-macular-degeneration
#6
Alexandra Pietraszkiewicz, Freekje van Asten, Alan Kwong, Rinki Ratnapriya, Goncalo Abecasis, Anand Swaroop, Emily Y Chew
PURPOSE: To investigate the association of rare predicted loss-of-function (pLoF) variants within age-related macular degeneration (AMD) risk loci and AMD sub-phenotypes. DESIGN: Case-control study. PARTICIPANTS: Participants of AREDS, AREDS2, and Michigan Genomics Initiative. METHODS: Whole genome sequencing data were analyzed for rare pLoF variants (frequency <0.1%) in the regions of previously identified 52 independent risk variants known to be associated with AMD...
December 7, 2017: Ophthalmology
https://www.readbyqxmd.com/read/29219932/cuticular-drusen-in-an-indigenous-australian
#7
William J Cunningham, Chandrakumar Balaratnasingam, Yi Chen, Fred K Chen
BACKGROUND/PURPOSE: To report a case of cuticular drusen in an indigenous Australian. METHODS: A 37-year-old indigenous (aboriginal) Australian woman from a remote Western Australian town presented with a 2-month history of vision loss. Clinical history, examination, and multimodal retinal imaging data from spectral domain optical coherence tomography, fundus autofluorescence, fluorescein angiography, and indocyanine green angiography were analyzed. RESULTS: Multimodal imaging confirmed cuticular drusen complicated by a right choroidal neovascularization with pigment epithelial detachment and a left foveal vitelliform lesion...
December 5, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29217515/choroidal-neovascular-membrane-in-paediatric-patients-clinical-characteristics-and-outcomes
#8
Tapas Ranjan Padhi, Bradley J Anderson, Ashkan M Abbey, Yoshihiro Yonekawa, Maxwell Stem, Danish Alam, Rohit Ramesh Modi, Laxmi Prabhavathi Savla, Michael T Trese, Antonio Capone, Kimberly A Drenser, Cagri G Besirli
PURPOSE: To analyse the clinical characteristics and treatment outcomes of choroidal neovascular membranes (CNVM) in paediatric subjects at three paediatric retina referral centres. METHODS: Medical charts of patients aged 18 years or less with a diagnosis of CNVM were retrospectively reviewed. The demographic profile, laterality, presenting complaint, corrected vision, underlying pathology, fundus, fundus fluorescein angiogram and optical coherence tomogram (OCT) were analysed...
December 7, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29210939/vascular-remodeling-of-choroidal-neovascularization-after-anti-vascular-endothelial-growth-factor-therapy-visualized-on-optical-coherence-tomography-angiography
#9
Alexandra Miere, Pauline Butori, Salomon Y Cohen, Oudy Semoun, Vittorio Capuano, Camille Jung, Eric H Souied
PURPOSE: To describe the qualitative and quantitative changes in choroidal neovascularization (CNV) flow pattern after anti-vascular endothelial growth factor therapy, by optical coherence tomography angiography (OCTA). METHODS: Consecutive patients with neovascular age-related macular degeneration underwent multimodal imaging, including OCTA at initial examination and at last visit. High-flow networks in the choriocapillaris segmentation of OCTA were qualitatively and quantitatively analyzed at baseline and at follow-up, to characterize vascular flow changes after anti-vascular endothelial growth factor treatment and to correlate these changes with final exudation signs on spectral domain optical coherence tomography...
November 23, 2017: Retina
https://www.readbyqxmd.com/read/29206759/multimodal-imaging-of-choroidal-lesions-in-disseminated-mycobacterium-chimaera-infection-after-cardiothoracic-surgery
#10
Christian Böni, Mayss Al-Sheikh, Barbara Hasse, Roman Eberhard, Philipp Kohler, Pascal Hasler, Stefan Erb, Matthias Hoffmann, Daniel Barthelmes, Sandrine A Zweifel
PURPOSE: To explore morphologic characteristics of choroidal lesions in patients with disseminated Mycobacterium chimaera infection subsequent to open-heart surgery. METHODS: Nine patients (18 eyes) with systemic M. chimaera infection were reviewed. Activity of choroidal lesions were evaluated using biomicroscopy, fundus autofluorescence, enhanced depth imaging optical coherence tomography, fluorescein angiography/indocyanine green angiography, and optical coherence tomography angiography...
December 4, 2017: Retina
https://www.readbyqxmd.com/read/29204996/the-vegf-treatment-of-amd-switch-study-the-vtas-study
#11
Beverley Curry, Guy Bylsma, Alex W Hewitt, Nitin Verma
PURPOSE: To evaluate the effect of aflibercept on anatomic and visual outcomes in patients with choroidal neovascularization (CNV) previously treated with intravitreal ranibizumab with persistent fluid on optical coherence tomography (OCT). DESIGN: Prospective, open-label study. METHODS: Eighteen patients (19 eyes) with CNV being treated with monthly ranibizumab, with persistent fluid on OCT, were switched to intravitreal aflibercept injections at intervals of up to 8 weeks...
November 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/29204993/update-on-the-use-of-anti-vegf-intravitreal-therapies-for-retinal-vein-occulsions
#12
Yi Jiang, William F Mieler
The use of anti-vascular endothelial growth factor (VEGF) therapy in ophthalmology has profoundly changed our management and treatment of conditions such as cystoid macular edema, diabetic macular edema, choroidal neovascularization, and other proliferative retinopathies. Although initially used for the treatment of choroidal neovascularization in neovascular age-related macular degeneration, their application has spread rapidly for other indications as their outcomes have often outperformed previously existing treatments...
November 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/29201457/the-effect-of-cm082-an-oral-tyrosine-kinase-inhibitor-on-experimental-choroidal-neovascularization-in-rats
#13
Chengda Ren, Hui Shi, Juanjuan Jiang, Qingyu Liu, Yaru Du, Mengmei He, Wenting Cai, Qingquan Wei, Jing Yu
The aims of this study were to evaluate the effects of CM082 on the development of choroidal neovascularization (CNV) in a laser-induced CNV rat model and to determine the drug concentration in the ocular tissues. After the laser-induced CNV model was established in rats, CM082 was orally administered. The effects of CM082 on the CNV lesions were assessed using fundus fluorescein angiography (FFA), CNV histology, and retinal pigment epithelium- (RPE-) choroid-sclera eyecup analysis. The concentrations of CM082 in the plasma and eye tissues were determined using liquid chromatography-tandem mass spectrometry (LC-MS/MS)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29201456/use-of-oct-angiography-in-choroidal-melanocytic-tumors
#14
Juan J Toledo, Mónica Asencio-Duran, Jesús R García-Martinez, Alejandro López-Gaona
Objective: To describe OCTA findings in choroidal melanocytic tumors, especially the microcirculation patterns, and to try to correlate with the histopathological studies. Methods: Cross-sectional, comparative, observational study. 70 cases, including 55 choroidal nevi and 15 choroidal melanomas. Three different observers evaluated specific variables in the choriocapillaris layer on AOCT images and searched for images which described histopathologic vascular patterns, and also, a general description of the images was made...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29200818/photodynamic-therapy-combined-with-antivascular-endothelial-growth-factor-treatment-for-recalcitrant-chronic-central-serous-chorioretinopathy
#15
Masumi G Asahi, Andrew T Chon, Esmeralda Gallemore, Ron P Gallemore
Purpose: To determine whether combination photodynamic therapy (PDT) and antivascular endothelial growth factor (VEGF) therapy is effective in the management of chronic central serous chorioretinopathy (CSC) recalcitrant to conventional therapy. Methods: This was a retrospective analysis of eight patients with chronic CSC unresponsive to topical nonsteroidal anti-inflammatory drugs, focal photocoagulation, anti-VEGF alone, or PDT alone. All patients were evaluated with a full ophthalmic examination, spectral-domain optical coherence tomography (OCT), fluorescein angiography (FA), and most with indocyanine green angiography (ICGA) followed by treatment with half-fluence PDT and intravitreal anti-VEGF injection (seven bevacizumab, one aflibercept)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29199233/inhibition-of-laser-induced-choroidal-neovascularization-by-hematoporphyrin-dimethylether-mediated-photodynamic-therapy-in-rats
#16
Yi-Jia Yan, Lei-Lei Bao, Li-Jun Zhang, Jun Bian, Tai-Shan Hu, Mei-Zhen Zheng, Dan-Ye Chen, Xin-Hai Yu, Zhi-Long Chen
This study aimed to investigate the effect of hematoporphyrin dimethylether (HDME)-mediated photodynamic therapy for laser-induced choroidal neovascularization (CNV) in adult Brown Norway rats. HDME was administered via tail vein at 14 d after the laser photocoagulation, and the rats received irradiance with a laser light at 570 nm at 15 min after injection. CNV was evaluated by fundus photography, fundus fluorescein angiography, optical coherence tomography, and hematoxylin and eosin staining. We found that CNV was occurred at 7 d after photocoagulation and reaching peak activity at 14 d after photocoagulation...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29196768/macular-atrophy-development-and-subretinal-drusenoid-deposits-in-anti-vascular-endothelial-growth-factor-treated-age-related-macular-degeneration
#17
Anna V Zarubina, Orly Gal-Or, Carrie E Huisingh, Cynthia Owsley, K Bailey Freund
Purpose: To explore the association between presence of subretinal drusenoid deposits (SDD) at baseline in eyes with neovascular age-related macular degeneration (nAMD) with the development of macular atrophy (MA) during anti-vascular endothelial growth factor (VEGF) therapy. Methods: There were 74 eyes without pre-existing MA receiving anti-VEGF therapy for nAMD for 2 years or longer analyzed. At least two image modalities that included spectral-domain optical coherence tomography, near-infrared reflectance, fluorescein angiography, and color fundus photos were used to assess for SDD presence, phenotype (dot and ribbon), and location, neovascularization type, and MA...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29193961/chemical-proteomics-reveals-soluble-epoxide-hydrolase-as-a-therapeutic-target-for-ocular-neovascularization
#18
Rania S Sulaiman, Bomina Park, Sardar Pasha Sheik Pran Babu, Yubing Si, Rakshin Kharwadkar, Sayak K Mitter, Bit Lee, Wei Sun, Xiaoping Qi, Michael E Boulton, Samy O Meroueh, Xiang Fei, Seung-Yong Seo, Timothy W Corson
The standard-of-care therapeutics for the treatment of ocular neovascular diseases like wet age-related macular degeneration (AMD) are biologics targeting vascular endothelial growth factor signaling. There are currently no FDA approved small molecules for treating these blinding eye diseases. Therefore, therapeutic agents with novel mechanisms are critical to complement or combine with existing approaches. Here, we identified soluble epoxide hydrolase (sEH), a key enzyme for epoxy fatty acid metabolism, as a target of an antiangiogenic homoisoflavonoid, SH-11037...
December 1, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/29191924/both-autocrine-signaling-and-paracrine-signaling-of-hb-egf-enhance-ocular-neovascularization
#19
Yuki Inoue, Masamitsu Shimazawa, Shinsuke Nakamura, Shinsuke Takata, Yuhei Hashimoto, Hiroshi Izawa, Tomomi Masuda, Kazuhiro Tsuruma, Tomohisa Sakaue, Hironao Nakayama, Shigeki Higashiyama, Hideaki Hara
OBJECTIVE: The incidence of blindness is increasing because of the increase in abnormal ocular neovascularization. Anti-VEGF (vascular endothelial growth factor) therapies have led to good results, although they are not a cure for the blindness. The purpose of this study was to determine what role HB-EGF (heparin-binding epidermal growth factor-like growth factor) plays in ocular angiogenesis. APPROACH AND RESULTS: We examined the role played by HB-EGF in ocular neovascularization in 2 animal models of neovascularization: laser-induced choroidal neovascularization (CNV) and oxygen-induced retinopathy...
November 30, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29185839/therapeutic-efficacy-of-conbercept-for-inflammatory-choroidal-neovascularization
#20
Yutong Chen, Rui Hua
No abstract text is available yet for this article.
November 29, 2017: Journal of Ocular Pharmacology and Therapeutics
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