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https://www.readbyqxmd.com/read/28736371/-multifocal-electroretinography-for-therapeutic-effect-evaluation-of-intravitreal-injection-lucentis-for-wet-age-related-macular-degeneration
#1
Rui-Hong Ju, Man-Sha He, Jin-Tong Hou, Meng-Yuan Li, Jing-Lin Zhang, Zhe-Ming Wu
OBJECTIVE: To evaluate the changes in retinal functions using multifocal electroretinography (mfERG) following intravitreal injection of Lucentis for treatment of wet age-related macular degeneration. METHODS: This prospective study was conducted in 14 patients (9 men and 5 women, 14 eyes) with wet age-related macular degeneration receiving treatment with intravitreal injections of ranibizumab (Lucentis) in our hospital between October, 2014 and January, 2016. All the patients received the treatment following a 1+PRN protocol and after the initial injection, the patients were followed up monthly for 6 months to decide if additional injections were needed...
July 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28726777/humanin-g-hng-protects-age-related-macular-degeneration-amd-transmitochondrial-arpe-19-cybrids-from-mitochondrial-and-cellular-damage
#2
Sonali Nashine, Pinchas Cohen, Marilyn Chwa, Stephanie Lu, Anthony B Nesburn, Baruch D Kuppermann, M Cristina Kenney
Age-related macular degeneration (AMD) ranks third among the leading causes of visual impairment with a blindness prevalence rate of 8.7%. Despite several treatment regimens, such as anti-angiogenic drugs, laser therapy, and vitamin supplementation, being available for wet AMD, to date there are no FDA-approved therapies for dry AMD. Substantial evidence implicates mitochondrial damage and retinal pigment epithelium (RPE) cell death in the pathogenesis of AMD. However, the effects of AMD mitochondria and Humanin G (HNG), a more potent variant of the mitochondrial-derived peptide (MDP) Humanin, on retinal cell survival have not been elucidated...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28703199/tundra-uptake-of-atmospheric-elemental-mercury-drives-arctic-mercury-pollution
#3
Daniel Obrist, Yannick Agnan, Martin Jiskra, Christine L Olson, Dominique P Colegrove, Jacques Hueber, Christopher W Moore, Jeroen E Sonke, Detlev Helmig
Anthropogenic activities have led to large-scale mercury (Hg) pollution in the Arctic. It has been suggested that sea-salt-induced chemical cycling of Hg (through 'atmospheric mercury depletion events', or AMDEs) and wet deposition via precipitation are sources of Hg to the Arctic in its oxidized form (Hg(ii)). However, there is little evidence for the occurrence of AMDEs outside of coastal regions, and their importance to net Hg deposition has been questioned. Furthermore, wet-deposition measurements in the Arctic showed some of the lowest levels of Hg deposition via precipitation worldwide, raising questions as to the sources of high Arctic Hg loading...
July 12, 2017: Nature
https://www.readbyqxmd.com/read/28686003/the-finnish-national-guideline-for-diagnosis-treatment-and-follow-up-of-patients-with-wet-age-related-macular-degeneration
#4
Raimo Tuuminen, Hannele Uusitalo-Järvinen, Vesa Aaltonen, Nina Hautala, Sulevi Kaipiainen, Nina Laitamäki, Marko Ollila, Jari Rantanen, Satu Välimäki, Raija Sipilä, Tanja Laukkala, Jorma Komulainen, Petri Tommila, Ilkka Immonen, Anja Tuulonen, Kai Kaarniranta
Age-related macular degeneration (AMD) is the main cause of visual impairment in developed countries. Several improvements in the visualization of posterior segment of the eye together with the introduction of intravitreal anti-VEGF treatment have revolutionized the prognosis of the wet form of AMD (wAMD). Increasing incidence of wAMD together with the limited resources of society and of the healthcare system poses challenges for the provision and development of care. In context of these current aspects, we aimed to set evidence-based medical guidelines for diagnosis, treatment and follow-up of patients with wAMD...
July 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28652696/no-improvement-in-injection-frequency-or-in-visual-outcome-over-time-in-two-cohorts-of-patients-from-the-same-swedish-county-treated-for-wet-age-related-macular-degeneration
#5
Marion Schroeder, Lena Rung, Monica Lövestam-Adrian
BACKGROUND: Although ranibizumab has been used for the treatment of wet age-related macular degeneration (AMD) since 2007, real-world studies still report undertreatment resulting in a less favorable visual outcome. In this study, two different time cohorts of patients treated with ranibizumab for wet AMD in routine care were analyzed to observe whether there was a change over time regarding visual outcome, injection frequency, and quality of life (QoL). METHODS: We compared patients with treatment-naïve wet AMD in two observational follow-up cohorts 2007-2010 (n=50 patients) and 2009-2013 (n=26)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28643712/comparison-of-macular-pigment-optical-density-in-patients-with-dry-and-wet-age-related-macular-degeneration
#6
Ayhan Ozyurt, Nilufer Kocak, Pınar Akan, Ozlem Gursoy Calan, Taylan Ozturk, Mahmut Kaya, Eyup Karahan, Suleyman Kaynak
AIM: The aim of the study was to evaluate the macular pigment optical density (MPOD) levels in patients with wet age-related macular degeneration (AMD), dry AMD, and also in healthy controls. SETTINGS AND DESIGN: This study was conducted at Department of Ophthalmology, and the study design was a prospective study. PATIENTS AND METHODS: Forty-eight patients with wet AMD, 51 patients with dry AMD, and 50 controls were included in the study. All patients were naive to both previous lutein or zeaxanthin administration and any previous intravitreal injections...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28643528/modulating-release-of-ranibizumab-and-aflibercept-from-thiolated-chitosan-based-hydrogels-for-potential-treatment-of-ocular-neovascularization
#7
Miguel Moreno, Poh Yih Pow, Tan Su Teng Tabitha, Sonali Nirmal, Andreas Larsson, Krishna Radhakrishnan, Jayabalan Nirmal, Soo Tng Quah, Susana Geifman Shochat, Rupesh Agrawal, Subbu Venkatraman
BACKGROUND: This paper describes the synthesis of thiolated chitosan-based hydrogels with varying degrees of crosslinking that has been utilized to modulate release kinetics of two clinically relevant FDA-approved anti-VEGF protein drugs, ranibizumab and aflibercept. These hydrogels have been fabricated into disc shaped structures for potential use as patches on ocular surface. METHODS: Protein conformational changes and aggregation after loading and release was evaluated by circular dichroism (CD), steady-state tryptophan fluorescence spectroscopy, electrophoresis and size-exclusion chromatography (SEC)...
July 3, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28641277/association-of-the-cfh-y402h-polymorphism-with-the-1-year-response-of-exudative-amd-to-intravitreal-anti-vegf-treatment-in-the-brazilian-population
#8
Flavio Mac Cord Medina, Augusto Alves Lopes da Motta, Walter Yukihiko Takahashi, Pedro Carlos Carricondo, Mario Martins Dos Santos Motta, Monica B Melo, Jose Paulo C Vasconcellos
AIM: Evidence of the relationship between the polymorphism of the complement factor H (CFH) gene at position 402 (Y402H) and the response to the treatment of wet AMD is controversial. The aim of this study was to compare the functional and morphological 1-year evolution of patients with exudative AMD treated with antivascular endothelial growth factor (VEGF) drugs with the CFH Y402H polymorphism in the Brazilian population. METHODS: Forty-six patients treated for wet AMD with bevacizumab or ranibizumab in a pro re nata regimen were included...
June 23, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28630787/evaluation-of-aflibercept-treatment-responses-in-eyes-with-bevacizumab-ranibizumab-resistant-wet-age-related-macular-degeneration
#9
Tuncay Topal, Taner Kar, Yıldıray Yıldırım, Sercan Koray Sağdıç, Cihan Büyükavşar, Abdullah Kaya, Ali Ayata, Murat Sönmez, Melih Hamdi Ünal
OBJECTIVES: To evaluate anatomic and functional results after switching from intravitreal bevacizumab or ranibizumab treatment to aflibercept for wet (neovascular) age-related macular degeneration. MATERIALS AND METHODS: This retrospective study included 22 eyes of 22 patients resistant to treatment with at least 6 injections of bevacizumab or ranibizumab. The first three injections had been applied monthly, the others pro re nata (PRN). Outcome measures were follow-up period, injection number, best corrected visual acuity (BCVA), central retinal thickness (CRT) and pigment epithelial detachment (PED) height...
June 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28616715/effects-of-intravitreal-injection-of-bevacizumab-with-or-without-anterior-chamber-paracentesis-on-intraocular-pressure-and-peripapillary-retinal-nerve-fiber-layer-thickness-a-prospective-study
#10
Masoud Soheilian, Saeed Karimi, Talieh Montahae, Homayoun Nikkhah, Seyed Aliasghar Mosavi
PURPOSE: To investigate the effects of intravitreal injection of bevacizumab (IVB) with or without anterior chamber paracentesis on intraocular pressure (IOP) and peripapillary retinal nerve fiber layer (PRNFL) thickness. METHODS: In this prospective randomized clinical trial, 90 eyes with center involving diabetic macular edema or wet type age-related macular degeneration (AMD) were randomly assigned to receive IVB either without (group A) or with (group B) anterior chamber paracentesis...
June 14, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28613225/macular-degeneration-and-aspirin-use
#11
Kent W Small, Christine A Garabetian, Fadi S Shaya
PURPOSE: To review current literature of the benefits that aspirin provides for patients' cardiovascular health compared with the risk of AMD worsening. METHODS: We performed a review and critically analyzed six cardiovascular and four ophthalmological trials regarding risks and benefits of aspirin use. The prospective randomized cardiovascular trials had a cumulative 167,580 while the 3 smaller ophthalmological data sets had a cumulative 12,015 subjects. RESULTS: The reviewed meta-analysis literature demonstrated a statistically significant 32% reduction in the risk of nonfatal stroke with regular aspirin users...
January 23, 2017: Retina
https://www.readbyqxmd.com/read/28604541/high-dose-high-frequency-aflibercept-for-recalcitrant-neovascular-age-related-macular-degeneration
#12
Qi Sheng You, Raouf Gaber, Amit Meshi, Hema L Ramkumar, Mostafa Alam, Ilkay Kilic Muftuoglu, William R Freeman
PURPOSE: To determine the efficacy of monthly (0.1 mL/4 mg) aflibercept for refractory neovascular age-related macular degeneration (wet age-related macular degeneration). METHODS: This was a retrospective interventional case series in which patients with wet age-related macular degeneration were treated with stepwise dose escalation. Nonvitrectomized patients resistant to monthly (Q4W) ranibizumab/bevacizumab were switched to 2 mg aflibercept every 8 weeks. With resistance, they were escalated to Q4W 2 mg aflibercept, then Q4W 4 mg (high dose high frequency, 4Q4W) aflibercept...
June 9, 2017: Retina
https://www.readbyqxmd.com/read/28598120/-characteristics-and-clinical-significance-of-outer-retinal-tubulation-in-wet-age-macular-degeneration-treated-by-anti-vascular-endothelial-growth-factor-through-optical-coherence-tomography
#13
Cheng Zuo, Xun Li, Zi-Rong Zhang, Mei-Xia Zhang
OBJECTIVES: To determine the characteristics and clinical significance of outer retinal tabulation (ORT) in wet age-related macular degeneration (wAMD) treated by anti-vascular endothelial growth factor (anti-VEGF) through optical coherence tomography (OCT). METHODS: The 35 wAMD patients with 39 ORT eyes treated by anti-VEGF were examined by OCT to determine the morphological features and evolution of the ORTs over time and their response to anti-VEGF. RESULTS: ORTs were located in the places that exudation or edema had happened in the outer nuclear layer of retina...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28579747/prevalence-of-and-risk-factors-for-age-related-macular-degeneration-in-nepal-the-bhaktapur-retina-study
#14
Raba Thapa, Sanyam Bajimaya, Govinda Paudyal, Shankar Khanal, Stevie Tan, Suman S Thapa, Ger van Rens
AIM: This study aimed to explore the prevalence of and risk factors for age-related macular degeneration (AMD) in an elderly population in Nepal. SUBJECTS AND METHODS: This is a population-based, cross-sectional study. A sample size of 2,100 was calculated. A total of 1,860 (88.6%) subjects aged >60 years were enrolled for the study from 30 clusters in the district. Detailed history, visual acuity, and anterior segment and posterior segment examinations were performed...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28557591/cd36-gene-is-associated-with-intraocular-pressure-elevation-after-intravitreal-application-of-anti-vegf-agents-in-patients-with-age-related-macular-degeneration-implications-for-the-safety-of-the-therapy
#15
Veronika Matušková, Vladimir J Balcar, Naim A Khan, Ondřej Bonczek, Laura Ewerlingová, Tomáš Zeman, Petr Kolář, Daniela Vysloužilová, Eva Vlková, Omar Šerý
BACKGROUND: The wet form of age-related macular degeneration (AMD) is characterized by pathological vascularization of the outer retinal layers. The condition responds to treatment with antibodies against vascular endothelial growth factor (VEGF), but the patients receiving such anti-VEGF therapy sometimes show undesirable acute short-term increases in the intraocular pressure (IOP). The cause of this adverse effect is unknown, and here, we are testing a hypothesis that it is related to CD36 gene polymorphisms...
May 30, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28557377/wet-amd-on-a-chip-modeling-outer-blood-retinal-barrier-in-vitro
#16
Minhwan Chung, Somin Lee, Byung Joo Lee, Kyungmin Son, Noo Li Jeon, Jeong Hun Kim
Choroidal neovascularization (CNV) in the retinal pigment epithelium (RPE)-choroid complex constituting outer blood retinal barrier (oBRB) is a critical pathological step in various ophthalmic diseases, which results in blindness, such as wet type age-related macula degeneration. Current in vitro experimental models using petri dishes or transwell are unable to study CNV morphogenesis. Here, a unique organotypic eye-on-a-chip model is described that mimics the RPE-choroid complex in vitro. This model consists of an RPE monolayer and adjacent perfusable blood vessel network, which is supporting barrier function of oBRB...
May 29, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28551897/-phacoemulsification-in-eyes-with-neovascular-age-related-macular-degeneration-amd
#17
Daniel Rappoport, Mordechai Goldberg, Amir Bukelman, Haya Katz, Lital Goldberg, Ayala Pollack
INTRODUCTION: Age-related macular degeneration (AMD) is the leading cause of blindness in the western world. The debate continues over the safety of cataract surgery in the setting of neovascular (wet) AMD. This retrospective review aims to describe our experience in treating patients with wet AMD, who underwent cataract surgery by phacoemulsification. METHODS: We prepared a retrospective chart review of patients treated in our clinic between the years 2006 - 2013...
February 2017: Harefuah
https://www.readbyqxmd.com/read/28548650/aflibercept-in-age-related-macular-degeneration-evaluating-its-role-as-a-primary-therapeutic-option
#18
REVIEW
M Ashraf, A A R Souka
The recent VIEW studies have demonstrated the non-inferiority of monthly and bi-monthly aflibercept in the management of wet age related macular degeneration (AMD) compared with ranibizumab. However, the current data are limited mainly to fixed dosing regimens with few studies looking at flexible dosing regimens of aflibercept in wet AMD. In addition, recent data from the VIEW 96 week extension has shown that patients being shifted from fixed dosing regimens to PRN have shown a drop in visual acuity and increase in central macular thickness...
May 26, 2017: Eye
https://www.readbyqxmd.com/read/28542257/long-term-results-after-limited-macular-translocation-surgery-for-wet-age-related-macular-degeneration
#19
Hisaaki Oshima, Takeshi Iwase, Kohei Ishikawa, Kentaro Yamamoto, Hiroko Terasaki
PURPOSE: To evaluate the long-term results of limited macular translocation (LMT) surgery with radial chorioscleral outfolding in patients with wet age-related macular degeneration (AMD) and subfoveal choroidal neovascularization (CNV). In addition, to identify the factors associated with the final best-corrected visual acuity (BCVA). METHODS: The medical records of 20 eyes of 20 consecutive patients (65.2±9.8 years) who had undergone LMT for the treatment of wet AMD and were followed for at least 5 years, were reviewed...
2017: PloS One
https://www.readbyqxmd.com/read/28538392/maculopapular-rash-after-intravitreal-injection-of-an-antivascular-endothelial-growth-factor-aflibercept-for-treating-age-related-macular-degeneration-a-case-report
#20
Norihiro Nagai, Mari Ibuki, Hajime Shinoda, Kaori Kameyama, Kazuo Tsubota, Yoko Ozawa
RATIONALE: Aflibercept, an anti-vascular endothelial growth factor (VEGF) drug, is used for treatment of colon cancer as well as retinal diseases, including wet age-related macular degeneration (AMD). It is injected into the vitreous cavity of eyes for treatment of AMD. Although vascular suppression-including cardiovascular events-and local infection related to the injection procedure are well-known potential adverse events, pathological immune responses after intravitreal aflibercept (IVA) injection have not been described...
May 2017: Medicine (Baltimore)
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