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https://www.readbyqxmd.com/read/29468211/treatment-of-retinal-pigment-epithelial-detachment-secondary-to-exudative-age-related-macular-degeneration
#1
Andres Gonzalez, Gibran Khurshid
Purpose: This pilot study evaluated the combination of photodynamic therapy (PDT) and anti-vascular endothelial growth factor (anti-VEGF) as a treatment in patients with a pigment epithelial detachment (PED) due to exudative age-related degeneration (AMD). Methods: We analyzed seven consecutive patients between September 1, 2015 and September 1, 2017 with a PED secondary to exudative AMD who were treated with full fluence standard PDT and a series of monthly intravitreal anti-VEGF injections...
March 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29468210/removal-of-choroidal-neovascular-membrane-in-a-case-of-macular-hole-after-anti-vegf-therapy-for-age-related-macular-degeneration
#2
Akira Hirata, Ken Hayashi, Kazuhisa Murata, Kei-Ichiro Nakamura
Purpose: The formation of macular hole after receiving anti-vascular endothelial growth factor (anti-VEGF) therapy is rare. We report a case of macular hole that occurred after intravitreal injection of an anti-VEGF agent for age-related macular degeneration (AMD) in a patient, who underwent vitrectomy combined with choroidal neovascularization (CNV) removal. Observations: A 64-year-old female with AMD affecting her right eye received an intravitreal injection of an anti-VEGF agent...
March 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29459695/light-action-spectrum-on-oxidative-stress-and-mitochondrial-damage-in-a2e-loaded-retinal-pigment-epithelium-cells
#3
Mélanie Marie, Karine Bigot, Claire Angebault, Coralie Barrau, Pauline Gondouin, Delphine Pagan, Stéphane Fouquet, Thierry Villette, José-Alain Sahel, Guy Lenaers, Serge Picaud
AIMS: Blue light is an identified risk factor for age-related macular degeneration (AMD). We investigated oxidative stress markers and mitochondrial changes in A2E-loaded retinal pigment epithelium cells under the blue-green part of the solar spectrum that reaches the retina to better understand the mechanisms underlying light-elicited toxicity. RESULTS: Primary retinal pigment epithelium cells were loaded with a retinal photosensitizer, AE2, to mimic aging. Using a custom-made illumination device that delivers 10 nm-wide light bands, we demonstrated that A2E-loaded RPE cells generated high levels of both hydrogen peroxide (H2 O2 ) and superoxide anion (O2 •- ) when exposed to blue-violet light...
February 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29454857/distinct-cd40l-receptors-mediate-inflammasome-activation-and-secretion-of-il-1%C3%AE-and-mcp-1-in-cultured-human-retinal-pigment-epithelial-cells
#4
Zong-Mei Bian, Matthew G Field, Susan G Elner, J Michelle Kahlenberg, Victor M Elner
CD40L signaling occurs in several diseases with inflammatory components, including ocular and retinal diseases. However, it has never been evaluated as a pathogenic mechanism in age-related macular degeneration (AMD) or as an inducer of inflammasome formation in any cell type. mRNA and protein levels of CD40, IL-1β, NALP1, NALP3, caspase-1, and caspase-5 were determined by RT-PCR, qPCR, and Western blot. CD40L receptor (CD40, α5β1, and CD11b) expression was determined by Western and immunofluorescent staining...
February 15, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29454659/predicting-visual-acuity-by-using-machine-learning-in-patients-treated-for-neovascular-age-related-macular-degeneration
#5
Markus Rohm, Volker Tresp, Michael Müller, Christoph Kern, Ilja Manakov, Maximilian Weiss, Dawn A Sim, Siegfried Priglinger, Pearse A Keane, Karsten Kortuem
PURPOSE: To predict, by using machine learning, visual acuity (VA) at 3 and 12 months in patients with neovascular age-related macular degeneration (AMD) after initial upload of 3 anti-vascular endothelial growth factor (VEGF) injections. DESIGN: Database study. PARTICIPANTS: For the 3-month VA forecast, 653 patients (379 female) with 738 eyes and an average age of 74.1 years were included. The baseline VA before the first injection was 0...
February 14, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29454085/effects-of-orientation-and-differential-reinforcement-ii-transitivity-and-transfer-across-five-member-sets
#6
Micah Amd, Marlon A de Oliveira, Denise A Passarelli, Livia C Balog, Julio C de Rose
A recent report by Amd and colleagues (2017) demonstrated that orienting towards successively presented stimulus-stimulus pairs yielded significantly more transitive relations then when those same pairs were differentially reinforced following training for three, 3-member stimulus sets. We build on that work in four important ways. First, transitivity yields produced by Pavlovian and instrumental procedures were compared following training for three 5-member sets (A1-B1-C1-D1-E1, A2-B2-C2-D2-E2, A3-B3-C3-D3-E3), where the 'A' stimuli were emotional faces and all remaining stimuli were nonsense words...
February 14, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29453225/prevalence-of-age-related-macular-degeneration-associated-genetic-risk-factors-and-4-year-progression-data-in-the-irish-population
#7
Emma Connolly, Maedbh Rhatigan, Aisling M O'Halloran, Katherine Alyson Muldrew, Usha Chakravarthy, Mark Cahill, Rose Anne Kenny, Sarah L Doyle
BACKGROUND/AIMS: Age-related macular degeneration (AMD) is estimated to affect 196 million people >50 years old globally. Prevalence of AMD-associated genetic risk factors and rate of disease progression are unknown in Ireland. METHODS: Prevalence of AMD-associated genetic risk variants, complement factor H (CFH) rs1061170, age-related maculopathy susceptibility 2 (ARMS2) rs10490924, component 3 (C3) rs2230199, complement factor B (CFB) rs641153 and superkiller viralicidic activity 2-like (SKIV2L) rs429608 and 4-year progression data in a population-representative cohort (The Irish Longitudinal study on Ageing (TILDA)) were assessed...
February 16, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29453223/tissue-engineering-of-retina-and-bruch-s-membrane-a-review-of-cells-materials-and-processes
#8
REVIEW
Yong Sheng Edgar Tan, Pu Jiang Shi, Chang-J Choo, Augustinus Laude, Wai Yee Yeong
The biological, structural and functional configuration of Bruch's membrane (BM) is significantly relevant to age-related macular degeneration (AMD) and other chorioretinal diseases, and AMD is one of the leading causes of blindness in the elderly worldwide. The configuration may worsen along with the ageing of retinal pigment epithelium and BM that finally leads to AMD. Thus, the scaffold-based tissue-engineered retina provides an innovative alternative for retinal tissue repair. The cell and material requirements for retinal repair are discussed including cell sheet engineering, decellularised membrane and tissue-engineered membranes...
February 16, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29451077/intravitreal-aflibercept-versus-ranibizumab-for-wet-age-related-macular-degeneration-a-cost-effectiveness-analysis
#9
Luis Hernandez, Tereza Lanitis, Clifford Cele, Hector Toro-Diaz, Andrea Gibson, Andreas Kuznik
BACKGROUND: Age-related macular degeneration (AMD) is the leading cause of vision loss in the United States. The most severe vision loss occurs in patients with neovascular AMD, known as wet AMD (wAMD). The most commonly used antivascular endothelial growth factor (VEGF) therapies approved by the FDA to treat patients with wAMD are ranibizumab, 0.5 mg administered by intravitreal injection once a month (approximately every 28 days), and intravitreal aflibercept injection (IAI), 2 mg every 4 weeks (monthly) for the first 12 weeks (3 months), followed by IAI 2 mg once every 8 weeks (2 months)...
February 16, 2018: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/29450541/induction-of-ocular-complement-activation-by-inflammatory-stimuli-and-intraocular-inhibition-of-complement-factor-d-in-animal-models
#10
Maura A Crowley, Omar Delgado, Adrian Will-Orrego, Natasha M Buchanan, Karen Anderson, Bruce D Jaffee, Thaddeus P Dryja, Sha-Mei Liao
Purpose: Genome-wide association studies suggest a role for the complement system in age-related macular degeneration (AMD). We characterized ocular complement activation and evaluated a complement factor D (FD) neutralizing antibody. Methods: Mice were treated with toll-like receptor (TLR) ligands, intravitreal injection (IVT), or corneal debridement. Levels of complement proteins and mRNA were measured. A FD neutralizing antibody was administered IVT into eyes of rabbits that were challenged with LPS (lipopolysaccharide) administered intravenously...
February 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29450400/incidence-of-ocular-hypertension-after-intravitreal-injection-of-anti-vegf-agents-in-the-treatment-of-neovascular-amd
#11
Andreea Moraru, Gabriela Pînzaru, Anca Moţoc, Dănuţ Costin, Daniel Brănişteanu
Purpose. The assessment of the incidence of ocular hypertension over a period of 1 year in patients treated with multiple intravitreal injections of anti-VEGF agents for neovascular AMD. Methods. The study comprised 58 eyes diagnosed with neovascular age-related macular degeneration and receiving PRN intravitreal treatment with anti-VEGF agents (bevacizumab or aflibercept). The follow-up period was 1 year. Intraocular pressure was measured by using the Goldmann applanation tonometry before the intravitreal injection, at 24 hours after the administration of the anti-VEGF agent and at 1 and 4 weeks...
July 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29448841/the-association-of-serum-iron-binding-proteins-and-antioxidant-parameter-levels-in-prelated-macular-degeneration
#12
Emina Čolak, Lepša Žorić, Aleksandra Radosavljević, Svetlana Ignjatović
PURPOSE: Age-related macular degeneration (AMD) is the leading cause of the irreversible central visual loss among the elderly in the developed countries. Iron is considered a potent generator of the oxidative damage whose levels increase with age, potentially exacerbating the age-related diseases. The aim of this study was to assess the serum values of iron, and iron-binding proteins (transferrin, ferritin, and haptoglobin) in patients with AMD along with the parameters of the antioxidant defense: superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase, and total antioxidant status (TAS), in order to analyze the possible impact of iron and iron-binding proteins to the development of oxidative stress in AMD patients, and the association of the selected parameters with the AMD...
February 15, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29448286/-mitochondrial-dysfunctions-and-role-of-coenzyme-q10-in-patients-with-glaucoma
#13
Carl Erb, Katarzyna Konieczka
Mitochondrial function is closely linked to numerous aspects of eye health. Imbalance between the creation of energy and the development of reactive oxygen species (ROS) seems to be the cause of the development of mitochondrial dysfunctions. As a result of this energy deficit, the level of oxidative stress in the eye tissues increases, leading to numerous ophthalmic impairments. It is important to distinguish between primary mitochondrial eye diseases and secondary mitochondrial changes. Primary mitochondrial eye diseases, for example Leber's hereditary optic atrophy (LHON), retinitis pigmentosa and chronic progressive external ophthalmoplegia are caused by direct damage to mitochondrial function induced by defective genes, either located on mitochondrial DNA (mtDNA) or the DNA of the nucleus (nDNA)...
February 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29448194/map-of-impact-by-acid-mine-drainage-in-the-river-network-of-the-iberian-pyrite-belt-sw-spain
#14
J A Grande, M Santisteban, M L de la Torre, J M Dávila, E Pérez-Ostalé
The Iberian Pyrite Belt (IPB), in the southwest of Europe, is characterized by high levels of contamination by acid mine drainage (AMD) in a large extent of its river network. In this scenario, it is necessary to characterize the degree of pollution of the mining leachates in the AMD-generating sources as well as of the main receiving watercourses. A map of impact of each basin was developed, based on the model proposed by Grande (2011) and the European Directive 98/83/EC that defines the quality standards for drinking water...
February 8, 2018: Chemosphere
https://www.readbyqxmd.com/read/29447828/validity-of-automated-threshold-audiometry-in-school-aged-children
#15
S M Govender, M Mars
BACKGROUND: Automated hearing tests have the potential to reduce the burden of disease amongst learners by introducing such services within the school context. METHODS: The aim of the study was to conduct a validation study on normal and hearing impaired learners, comparing air and bone conduction automated test results to conventional test results in 50 school aged learners (n = 100 ears) within a noise controlled school environment using a cross sectional comparative study design...
February 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29446046/anti-neovascularization-effects-of-dmbt-in-age-related-macular-degeneration-by-inhibition-of-vegf-secretion-through-ros-dependent-signaling-pathway
#16
Shang Chen, Yue Zhou, Lichun Zhou, Yanhui Guan, Yu Zhang, Xiuzhen Han
Choroidal neovascularization (CNV) is the hallmark of late-staged wet age-related macular degeneration (AMD). Vascular endothelial growth factor (VEGF) is a key component in the development and progression of wet AMD. DMBT, 6,6'-bis(2,3-dimethoxybenzoyl)-α,α-D-trehalose, had been proved that it could suppress tumor angiogenesis and metastasis by inhibiting production of VEGF. But the effects of DMBT on CNV were not known. This study was to investigate effects and mechanisms of DMBT on CNV in vitro and in vivo...
February 14, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29445097/complete-transcriptome-profiling-of-normal-and-age-related-macular-degeneration-eye-tissues-reveals-dysregulation-of-anti-sense-transcription
#17
Eun Ji Kim, Gregory R Grant, Anita S Bowman, Naqi Haider, Harini V Gudiseva, Venkata Ramana Murthy Chavali
Age-related macular degeneration (AMD) predominantly affects the retina and retinal pigment epithelium in the posterior eye. While there are numerous studies investigating the non-coding transcriptome of retina and RPE, few significant differences between AMD and normal tissues have been reported. Strand specific RNA sequencing of both peripheral retina (PR) and RPE-Choroid-Sclera (PRCS), in both AMD and matched normal controls were generated. The transcriptome analysis reveals a highly significant and consistent impact on anti-sense transcription as well as moderate changes in the regulation of non-coding (sense) RNA...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29443441/cumulative-live-birth-rates-and-perinatal-outcomes-with-the-use-of-time-lapse-imaging-incubators-for-embryo-culture-a-retrospective-cohort-study-of-1882-art-cycles
#18
Mariano Mascarenhas, Sarah J Fox, Karen Thompson, Adam H Balen
OBJECTIVE: Comparison of live birth rates and the perinatal outcomes after fresh and frozen embryo transfer between time lapse imaging (TLI) and standard culture (SC) incubators. DESIGN: Retrospective cohort study. SETTING: A single tertiary level IVF unit. POPULATION: Women undergoing IVF between January 2014 and October 2015. METHODS: Comparison was done between 1064 IVF cycles using TLI (TLI cycles) and 818 IVF cycles using SC (SC cycles)...
February 14, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29443357/low-energy-stereotactic-radiotherapy-for-treatment-of-exudative-age-related-macular-degeneration-in-a-treat-and-extend-regimen
#19
Katja Hatz, Frank Zimmermann, Dimitrios Kardamakis, Emmanouil Lazaridis, Cengiz Türksever, Jörg Binder, Alexandros Papachristofilou, Christian Prünte
BACKGROUND AND OBJECTIVE: To evaluate the effectiveness and safety of low-energy stereotactic radiotherapy (SRT) combined with anti-vascular endothelial growth factor (VEGF) treatment following a treat-and-extend regimen (TER) in wet age-related macular degeneration (AMD). PATIENTS AND METHODS: Before/after SRT, the authors compared retrospective consecutive case series of 50 patients requiring frequent anti-VEGF treatment (every 4 or 6 weeks) in wet AMD, treated with a single session of SRT and TER (same manner pre/post-SRT)...
February 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29443034/subretinal-transplantation-of-human-embryonic-stem-cell-derived-retinal-pigment-epithelial-cells-into-a-large-eyed-model-of-geographic-atrophy
#20
Sandra Petrus-Reurer, Hammurabi Bartuma, Monica Aronsson, Sofie Westman, Fredrik Lanner, Anders Kvanta
Geographic atrophy (GA), the late stage of dry age-related macular degeneration is characterized by loss of the retinal pigment epithelial (RPE) layer, which leads to subsequent degeneration of vital retinal structures (e.g., photoreceptors) causing severe vision impairment. Similarly, RPE-loss and decrease in visual acuity is seen in long-term follow up of patients with advanced wet age-related macular degeneration (AMD) receiving intravitreal anti-vascular endothelial growth factor (VEGF) treatment. Therefore, on the one hand, it is fundamental to efficiently derive RPE cells from an unlimited source that could serve as replacement therapy...
January 22, 2018: Journal of Visualized Experiments: JoVE
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