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https://www.readbyqxmd.com/read/28916483/recombinant-humanized-anti-vascular-endothelial-growth-factor-monoclonal-antibody-efficiently-suppresses-laser-induced-choroidal-neovascularization-in-rhesus-monkeys
#1
Wan-Wan Ji, Dong-An Yu, Peng Yang, Peng Fang, Yu-Xia Cao, Hu Li, Ning Xie, Shou-Sheng Yan
Neovascular age-related macular degeneration, characterized by abnormal choroidal neovascularization (CNV), is a major cause of blindness worldwide. Anti-vascular endothelial growth factor (VEGF) antibodies have demonstrated significant efficacy in improving visual acuity. TMAB001 is a new recombinant humanized rabbit anti-VEGF monoclonal antibody. It presents high activities in vitro studies. In the binding affinity assay, TMAB001 exhibited a high binding capability to VEGF with an affinity constant of 10(-11)M...
September 12, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28874192/plasma-metabolomic-study-in-chinese-patients-with-wet-age-related-macular-degeneration
#2
Dan Luo, Tingting Deng, Wei Yuan, Hui Deng, Ming Jin
BACKGROUND: Age-related macular degeneration (AMD) is a leading disease associated with blindness. It has a high incidence and complex pathogenesis. We aimed to study the metabolomic characteristics in Chinese patients with wet AMD by analyzing the morning plasma of 20 healthy controls and 20 wet AMD patients for metabolic differences. METHODS: We used ultra-high-pressure liquid chromatography and quadrupole-time-of-flight mass spectrometry for this analysis. The relationship of these differences with AMD pathophysiology was also assessed...
September 6, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28860733/recent-developments-in-age-related-macular-degeneration-a-review
#3
REVIEW
Waseem M Al-Zamil, Sanaa A Yassin
BACKGROUND: Visual impairment in elderly people is a considerable health problem that significantly affects quality of life of millions worldwide. The magnitude of this issue is becoming more evident with an aging population and an increasing number of older individuals. OBJECTIVE: The objective of this article was to review the clinical and pathological aspects of age-related macular degeneration (AMD), diagnostic tools, and therapeutic modalities presently available or underway for both atrophic and wet forms of the disease...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28852052/tgf-%C3%AE-participates-choroid-neovascularization-through-smad2-3-vegf-tnf-%C3%AE-signaling-in-mice-with-laser-induced-wet-age-related-macular-degeneration
#4
Xiaolei Wang, Wei Ma, Song Han, Zhaoyang Meng, Lu Zhao, Yi Yin, Yanling Wang, Junfa Li
Choroidal neovascularization(CNV) is the most severe complication in Age-related macular degeneration(AMD) and the most common cause of irreversible blindness in the elderly in developed world. The aim of this study was to identify the effect of transforming growth factor-β(TGF-β) and Smad2/3-VEGF/TNF-α signaling on CNV angiopoiesis, and to explore TGF-β inhibitors on the development of CNV in a CNV mouse model. Fundus fluorescein angiography(FFA) was used to evaluate the laser-induced CNV formation. The histology of CNV lesions stained with hematoxylin-eosin(HE) was obtained...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846017/pharmacologic-treatment-of-wet-type-age-related-macular-degeneration-current-and-evolving-therapies
#5
Hoda Shams Najafabadi, Narsis Daftarian, Hamid Ahmadieh, Zahra-Soheila Soheili
Age-related macular degeneration as the major cause of blindness in the elderly population has remained at the epicenter of clinical research in ophthalmology. This retinal disorder is characterized by the photoreceptor and retinal pigment epithelial cells loss, occurring within the macula. The disease represents a spectrum of clinical manifestations. It is a multifactorial disease resulting from a combination of genetic predispositions and environmental risk factors. AMD is classified into two different types, dry and wet...
August 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28794612/investigation-of-associations-of-arms2-cd14-and-tlr4-gene-polymorphisms-with-wet-age-related-macular-degeneration-in-a-greek-population
#6
Antonia Sarli, Iosif Skalidakis, Aliki Velissari, Chryssanthi Koutsandrea, Maria Stefaniotou, Michael B Petersen, Christos Kroupis, George Kitsos, Marilita M Moschos
BACKGROUND: Age-related macular degeneration (AMD) is a multifactorial degenerative ocular disease that leads to loss of central vision. Functional gene polymorphisms have already been associated with the disease (for example, ARMS2 A69S, rs10490924). AIM: The goal of our study was to verify the correlation of the aforementioned ARMS2 variation with the disease, to examine, for the first time, the role of the CD14 C260T variation (rs2569190), and to investigate the association of two TLR4 polymorphisms (Asp299Gly or rs4986790 and Thr399Ile or rs4986791) in a Greek population with the wet form of AMD...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28761324/arms2-variants-may-predict-the-3-year-outcome-of-photodynamic-therapy-for-wet-age-related-macular-degeneration
#7
Shunichiro Nakai, Shigeru Honda, Wataru Matsumiya, Akiko Miki, Makoto Nakamura
PURPOSE: To determine the association of age-related maculopathy susceptibility2 (ARMS2) gene polymorphisms with the 3-year outcomes of photodynamic therapy (PDT) in wet age-related macular degeneration (wet AMD). METHODS: The single nucleotide polymorphism (SNP) at rs10490924 in the ARMS2 gene of 65 patients with wet AMD who underwent PDT was genotyped using the TaqMan assay. The clinical characteristics and the outcomes of PDT were compared among the three genotypes at rs10490924...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28740360/visual-processing-in-patients-with-age-related-macular-degeneration-performing-a-face-detection-test
#8
Pasi Vottonen, Kai Kaarniranta, Ari Pääkkönen, Ina M Tarkka
PURPOSE: People with age-related macular degeneration (AMD) have difficulties in familiar face recognition and facial expression discrimination. Our aim was to evaluate the visual processing of faces in AMD patients and whether this would be improved by anti-vascular endothelial growth factor therapy. This was a prospective interventional cohort study. PATIENTS: Twelve patients with monocular wet AMD and 6 control subjects were recruited. Face detection processes were studied using cortical event-related potentials (ERPs)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28726777/humanin-g-hng-protects-age-related-macular-degeneration-amd-transmitochondrial-arpe-19-cybrids-from-mitochondrial-and-cellular-damage
#9
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/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
#10
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
#11
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
#12
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
#13
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/28613225/macular-degeneration-and-aspirin-use
#14
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...
September 2017: Retina
https://www.readbyqxmd.com/read/28579747/prevalence-of-and-risk-factors-for-age-related-macular-degeneration-in-nepal-the-bhaktapur-retina-study
#15
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/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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