keyword
MENU ▼
Read by QxMD icon Read
search

age related macular degeneration

keyword
https://www.readbyqxmd.com/read/28334846/dapl1-a-susceptibility-locus-for-age-related-macular-degeneration-acts-as-a-novel-suppressor-of-cell-proliferation-in-the-retinal-pigment-epithelium
#1
Xiaoyin Ma, Huirong Li, Yipin Wang, Jing Wang, Qinxiang Zheng, Jiajia Hua, Juan Yang, Li Pan, Fan Lu, Jia Qu, Ling Hou
The retinal pigment epithelium (RPE) forms a monolayer at the back of the vertebrate eye and is fundamental to retinal function and homoeostasis. During early development, RPE cells undergo rapid proliferation, but in the adult, they remain normally nonproliferative throughout life. Nevertheless, under pathological conditions such as in proliferative vitreoretinopathy or after retinal ablation, mature RPE cells can re-enter the cell cycle and form nodules or multiple cell layers. Here we show that Dapl1, whose human homolog represents a susceptibility locus for age-related macular degeneration (AMD), is highly up-regulated in quiescent but not proliferating RPE cells and that experimental overexpression of DAPL1 in proliferating RPE cells inhibits their proliferation...
February 22, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333572/new-insights-on-complement-inhibitor-cd59-in-mouse-laser-induced-choroidal-neovascularization-mislocalization-after-injury-and-targeted-delivery-for-protein-replacement
#2
Gloriane Schnabolk, Mee Keong Beon, Stephen Tomlinson, Bärbel Rohrer
PURPOSE: The membrane attack complex (MAC) in choriocapillaris (CC) and retinal pigment epithelium (RPE) increase with age and disease (age-related macular degeneration). MAC assembly can be inhibited by CD59, a membrane-bound regulator. Here we further investigated the role of CD59 in murine choroidal neovascularization (CNV), a model involving both CC and RPE, and tested whether CR2-CD59, a soluble targeted form of CD59, provides protection. METHODS: Laser-induced CNV was generated in wild type and CD59a-deficient mice (CD59(-/-))...
March 23, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28332910/association-between-dietary-xanthophyll-lutein-and-zeaxanthin-intake-and-early-age-related-macular-degeneration-the-atherosclerosis-risk-in-communities-study
#3
Henry Lin, Julie A Mares, Michael J LaMonte, William E Brady, Michelle W Sahli, Ronald Klein, Barbara E K Klein, Jing Nie, Amy E Millen
PURPOSE: To examine the association between xanthophyll intake and prevalent early age-related macular degeneration (AMD) using data from the Atherosclerosis Risk in Communities Study (n = 10,295). Potential effect modification by genetic polymorphisms and biomarkers of high-density lipoprotein (HDL) metabolism was explored. METHODS: Xanthophyll intake was assessed at visit 1 (1987-1989) using food frequency questionnaires. Prevalent early AMD was assessed at visit 3 (1993-1995) via retinal photographs...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28331281/the-involvement-of-atf4-and-s-opsin-in-retinal-photoreceptor-cell-damage-induced-by-blue-led-light
#4
Emi Ooe, Kazuhiro Tsuruma, Yoshiki Kuse, Saori Kobayashi, Masamitsu Shimazawa, Hideaki Hara
PURPOSE: Blue light is a high-energy emitting light with a short wavelength in the visible light spectrum. Blue light induces photoreceptor apoptosis and causes age-related macular degeneration or retinitis pigmentosa. In the present study, we investigated the roles of endoplasmic reticulum (ER) stress induced by blue light-emitting diode (LED) light exposure in murine photoreceptor cells. METHODS: The murine photoreceptor cell line was incubated and exposed to blue LED light (464 nm blue LED light, 450 lx, 3 to 24 h)...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28328847/effect-of-topical-isopropyl-unoprostone-on-macular-atrophy-progression-in-eyes-with-exudative-age-related-macular-degeneration
#5
Chieko Shiragami, Masahiro Miyake, Atsushi Fujiwara, Yuki Morizane, Akitaka Tsujikawa, Ayana Yamashita, Fumio Shiraga
BACKGROUND: To evaluate the efficacy and safety of topical isopropyl unoprostone (IU) in treating macular atrophy in age-related macular degeneration (AMD) patients. METHODS: Fifty-two AMD patients with macular atrophy were included and randomly assigned (1:1) to the treatment (topical 0.15% IU) or placebo group. Subjects used study eye drops 3 times a day for 54 weeks. The macular atrophy was documented on fundus autofluorescence photographs and measured using RegionFinder...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328288/the-role-of-mf-erg-in-the-diagnosis-and-treatment-of-age-related-macular-degeneration-electrophysiological-features-of-amd
#6
Marilita M Moschos, Eirini Nitoda
INTRODUCTION: Age-related macular cegeneration (AMD) is the leading cause of visual dysfunction worldwide, affecting 9-25% of individuals between 65 and 75 years old. METHODS: We have reviewed the published articles investigating the role of multifocal electroretinogram (mf-ERG) in the diagnosis and treatment of AMD. RESULTS: Visual evoked potentials have revealed decreased amplitudes and higher latencies in patients with AMD, while the degeneration of photoreceptors and abnormalities of retinal pigment epithelium can be identified by electro-oculogram recordings...
March 22, 2017: Seminars in Ophthalmology
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/28325166/color-perception-differentiates-alzheimer-s-disease-ad-from-vascular-dementia-vad-patients
#8
N A Arnaoutoglou, M Arnaoutoglou, P Nemtsas, V Costa, S J Baloyannis, K P Ebmeier
BACKGROUND: Alzheimer's Disease (AD) and Vascular Dementia (VaD) are the most common causes of dementia in older people. Both diseases appear to have similar clinical symptoms, such as deficits in attention and executive function, but specific cognitive domains are affected. Current cohort studies have shown a close relationship between αβ deposits and age-related macular degeneration (Johnson et al., 2002; Ratnayaka et al., 2015). Additionally, a close link between the thinning of the retinal nerve fiber (RNFL) and AD patients has been described, while it has been proposed that AD patients suffer from a non-specific type of color blindness (Pache et al...
March 22, 2017: International Psychogeriatrics
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/28321407/pten-reduced-uvb-mediated-apoptosis-in-retinal-pigment-epithelium-cells
#10
Jia He, Chongde Long, Zixin Huang, Xin Zhou, Xielan Kuang, Lanying Liu, Huijun Liu, Yan Tang, Yuting Fan, Jie Ning, Xinqi Ma, Qingjiong Zhang, Huangxuan Shen
Age-related macular degeneration (AMD) is a leading cause of blindness and progressive loss of central vision in the elderly population. The important factor of AMD pathogenesis is the degeneration of retinal pigment epithelial (RPE) cells by oxidative stress. Inactivation of PTEN can disrupt intercellular adhesion in the RPE cells, but the mechanism of oxidative stress is less known. Here we presented evidence that UVB-mediated oxidative stress induced apoptosis in ARPE-19 cells. Downregulation of the expression of PTEN in UVB-irradiative RPE cells triggered DNA damage and increased the level of UVB-induced apoptosis by activating p53-dependent pathway...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28318930/cell-therapy-for-age-related-macular-degeneration-a-new-vision-for-the-bone-marrow
#11
Alexander V Ljubimov
No abstract text is available yet for this article.
March 15, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28316876/automated-brightness-and-contrast-adjustment-of-color-fundus-photographs-for-the-grading-of-age-related-macular-degeneration
#12
Edem Tsikata, Inês Laíns, João Gil, Marco Marques, Kelsey Brown, Tânia Mesquita, Pedro Melo, Maria da Luz Cachulo, Ivana K Kim, Demetrios Vavvas, Joaquim N Murta, John B Miller, Rufino Silva, Joan W Miller, Teresa C Chen, Deeba Husain
PURPOSE: The purpose of this study was to develop an algorithm to automatically standardize the brightness, contrast, and color balance of digital color fundus photographs used to grade AMD and to validate this algorithm by determining the effects of the standardization on image quality and disease grading. METHODS: Seven-field color photographs of patients (>50 years) with any stage of AMD and a control group were acquired at two study sites, with either the Topcon TRC-50DX or Zeiss FF-450 Plus cameras...
March 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28316836/comparison-of-progression-rate-of-retinal-pigment-epithelium-loss-in-patients-with-neovascular-age-related-macular-degeneration-treated-with-ranibizumab-and-aflibercept
#13
Juliana Wons, Magdalena A Wirth, Nicole Graf, Matthias D Becker, Stephan Michels
Purpose. Retinal pigment epithelium (RPE) loss in neovascular age-related macular degeneration (nAMD) seem to have a linear progression but might be influenced by the treatment. The purpose of the study is the comparison of RPE loss over three years in patients treated with intravitreal ranibizumab to patients who were switched to aflibercept. Methods. A retrospective analysis with 96 eyes switched to aflibercept was conducted. The progression rate of RPE loss was evaluated in patients who showed atrophy one year prior to switch (n = 17) or on switch date (n = 19)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28315863/circulating-mirnas-as-potential-biomarkers-of-age-related-macular-degeneration
#14
Chengda Ren, Qingyu Liu, Qingquan Wei, Wenting Cai, Mengmei He, Yaru Du, Ding Xu, Yan Wu, Jing Yu
Backgroud: Age-related macular degeneration (AMD) is one of the leading causes of irreversible blindness of the elder people. This research was intended to demonstrate the different expression of microRNAs (miRNA) in AMD patients and whether they can be used as biomarkers for AMD. METHODS: MiRNAs expression was measured by microarray of 6 AMD cases and 6 gender matched controls. In a larger-sample case-control study with 126 AMD cases and 140 controls, whole blood samples were detected for the differences of miRNA expression...
March 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28315667/hif-signalling-the-eyes-have-it
#15
D J Peet, T Kittipassorn, J P Wood, G Chidlow, R J Casson
The hypoxia inducible factors (HIFs) mediate changes in gene expression in response to hypoxia, and mediate key physiological responses such as angiogenesis. They play important roles in development and normal physiology, as well as in ischaemic and other pathologies. The human eye is a complex organ, with tight regulation of vascularisation and oxygen delivery, with the highly specialised retina containing both highly vascularised and avascular regions. This review, written to honour the significant contribution of Lorenz Poellinger to this field, covers the role of the HIFs in normal development of the eye, specifically the vasculature, as well as their roles in numerous retinal pathologies, including ischaemic retinopathies, and age-related macular degeneration (AMD)...
March 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28315291/perspectives-of-stem-cell-based-therapy-for-age-related-retinal-degenerative-diseases
#16
Vladimir Holan, Barbora Hermankova, Jan Kossl
Retinal degenerative diseases, which include age-related macular degeneration, retinitis pigmentosa, diabetic retinopathy and glaucoma, mostly affect the elderly population, and are the most common cause of decreased quality of vision or even blindness. So far, there is no satisfactory treatment protocol to prevent, stop or cure these disorders. A great hope and promise for patients suffering from retinal diseases is represented by stem cell-based therapy which could replace diseased or missing retinal cells, and support regeneration...
March 17, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28315278/peeking-into-sigma-1-receptor-functions-through-the-retina
#17
Timur A Mavlyutov, Lian-Wang Guo
This review discusses recent advances towards understanding the sigma-1 receptor (S1R) as an endogenous neuro-protective mechanism in the retina , a favorable experimental model system. The exquisite architecture of the mammalian retina features layered and intricately wired neurons supported by non-neuronal cells. Ganglion neurons, photoreceptors , as well as the retinal pigment epithelium, are susceptible to degeneration that leads to major retinal diseases such as glaucoma , diabetic retinopathy , and age-related macular degeneration (AMD), and ultimately, blindness...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28302534/experience-of-anti-vegf-treatment-and-clinical-levels-of-depression-and-anxiety-in-patients-with-wet-age-related-macular-degeneration
#18
Hugo Senra, Konstantinos Balaskas, Neda Mahmoodi, Tariq Aslam
PURPOSE: To investigate detailed patient experiences specific to receiving vascular endothelial growth factor inhibitors (anti-VEGF) for wet Age-Related Macular Degeneration (wAMD), and to acquire a snapshot of the frequency of clinically significant levels of depression, anxiety and post-traumatic stress among patients and levels of burden in patients' carers. DESIGN: Observational cross-sectional mixed-methods study METHODS: 300 patients with wAMD receiving anti-VEGF treatment and 100 patient carers were recruited...
March 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28301850/influence-of-vitreomacular-adhesion-on-anti-vascular-endothelial-growth-factor-treatment-for-neovascular-age-related-macular-degeneration
#19
Tereza Cristina Moreira Kanadani, Carlos Eduardo Dos Reis Veloso, Syril Dorairaj, Márcio Bittar Nehemy
PURPOSE: To investigate the effect of vitreomacular adhesion (VMA) on the outcome of antiangiogenic treatment for neovascular age-related macular degeneration (AMD). METHODS: Ninety-nine eyes of 83 patients were used in our cohort study. We prospectively evaluated best corrected visual acuity (BCVA) and central retinal thickness (CRT) in patients with neovascular AMD at baseline and 1, 2, 3, 6, and 12 months after treatment with anti-vascular endothelial growth factor (anti-VEGF) agents...
March 17, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28301639/association-of-repeated-intravitreous-bevacizumab-injections-with-risk-for-glaucoma-surgery
#20
Brennan D Eadie, Mahyar Etminan, Bruce C Carleton, David A Maberley, Frederick S Mikelberg
Importance: Intravitreous injections of anti-vascular endothelial growth factor (VEGF) agents are associated with a sustained increase in intraocular pressure. This sustained elevated intraocular pressure could lead to higher rates of glaucoma surgery to lower this pressure. Objective: To determine the risk of glaucoma surgery following repeated intravitreous bevacizumab injections. Design, Setting, Participants: This nested, case-control study acquired and analyzed data from large, population-based, linked health databases supported by the British Columbia Ministry of Health in Canada...
March 16, 2017: JAMA Ophthalmology
keyword
keyword
114216
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"