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https://www.readbyqxmd.com/read/28212521/angiogenesis-in-the-atherosclerotic-plaque
#1
REVIEW
Caroline Camaré, Mélanie Pucelle, Anne Nègre-Salvayre, Robert Salvayre
Atherosclerosis is a multifocal alteration of the vascular wall of medium and large arteries characterized by a local accumulation of cholesterol and non-resolving inflammation. Atherothrombotic complications are the leading cause of disability and mortality in western countries. Neovascularization in atherosclerotic lesions plays a major role in plaque growth and instability. The angiogenic process is mediated by classical angiogenic factors and by additional factors specific to atherosclerotic angiogenesis...
February 1, 2017: Redox Biology
https://www.readbyqxmd.com/read/28211882/aflibercept-as-a-second-line-therapy-for-neovascular-age-related-macular-degeneration-in-israel-asli-study
#2
L Tiosano, O Segal, N Mathalone, A Pollack, R Ehrlich, I Klemperer, Y Barak, I Moroz, I Chowers, M Goldstein
PurposeThe purpose of this study is to evaluate an early switch to aflibecept in eyes with neovascular age-related macular degeneration (nvAMD) showing partial or lack of response for initial therapy with bevacizumab.MethodsThe Aflibercept as a Second Line Therapy for Neovascular Age Related Macular Degeneration in Israel (ASLI) was a prospective, multicenter, single-arm clinical trial. Eyes with nvAMD having incomplete response to 3-9 prior bevacizumab injections were recruited. Three monthly intravitreal aflibercept (2 mg) injections were administered, followed by two bi-monthly injections and a final examination at week 28...
February 17, 2017: Eye
https://www.readbyqxmd.com/read/28211523/pedf-mediates-pathological-neovascularization-by-regulating-macrophage-recruitment-and-polarization-in-the-mouse-model-of-oxygen-induced-retinopathy
#3
Sha Gao, Changwei Li, Yanji Zhu, Yanuo Wang, Ailing Sui, Yisheng Zhong, Bing Xie, Xi Shen
Macrophages have been demonstrated to play a proangiogenic role in retinal pathological vascular growth. Pigment epithelium-derived factor (PEDF) works as a powerful endogenous angiogenesis inhibitor, but its role in macrophage recruitment and polarization is largely unknown. To explore the underlying mechanisms, we first evaluated macrophage polarization in the retinas of the oxygen-induced retinopathy (OIR) mouse model. Compared to that in normal controls, M1- and M2-like macrophages were all abundantly increased in the retinas of OIR mice...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209587/genome-surgery-using-cas9-ribonucleoproteins-for-the-treatment-of-age-related-macular-degeneration
#4
Kyoungmi Kim, Sung Wook Park, Jin Hyoung Kim, Seung Hwan Lee, Daesik Kim, Taeyoung Koo, Kwang-Eun Kim, Jeong Hun Kim, Jin-Soo Kim
RNA-guided genome surgery using CRISPR-Cas9 nucleases has shown promise for the treatment of diverse genetic diseases. Yet, the potential of such nucleases for therapeutic applications in nongenetic diseases is largely unexplored. Here, we focus on age-related macular degeneration (AMD), a leading cause of blindness in adults, which is associated with retinal overexpression of, rather than mutations in, the VEGFA gene. Subretinal injection of preassembled, Vegfa gene-specific Cas9 ribonucleoproteins (RNPs) into the adult mouse eye gave rise to mutagenesis at the target site in the retinal pigment epithelium...
February 16, 2017: Genome Research
https://www.readbyqxmd.com/read/28207964/impaired-nephrogenesis-in-neonatal-rats-with-oxygen-induced-retinopathy
#5
Mayu Nakagawa, Naoto Nishizaki, Amane Endo, Tomonosuke Someya, Yuta Saito, Akira Mizutani, Taichi Hara, Yayoi Murano, Koji Sakuraya, Satoshi Hara, Daisuke Umino, Daishi Hirano, Shuichiro Fujinaga, Yoshiyuki Ohtomo, Toshiaki Shimizu
OBJECTIVES: Preterm neonates are born while nephrogenesis is ongoing and are commonly exposed to factors in a hyperoxic environment that can impair renal development. Oxidative stress has also been implicated in the development of retinopathy of prematurity (ROP). The rat model of oxygen-induced retinopathy (OIR) is the most clinically relevant model of ROP because its biologic features closely resemble those of ROP in preterm infants. We investigated impaired renal development in a rat model of OIR...
February 16, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28207610/choroidal-neovascularization
#6
Richard F Spaide
No abstract text is available yet for this article.
February 15, 2017: Retina
https://www.readbyqxmd.com/read/28207609/ischemic-central-retinal-vein-occlusion-in-the-anti-vascular-endothelial-growth-factor-era
#7
Emily K Tam, Pamela Golchet, Madeline Yung, Francis C DeCroos, Marc Spirn, Lydia Lehmann-Clarke, Aude Ambresin, Irena Tsui
PURPOSE: Anti-vascular endothelial growth factor therapy has improved the prognosis for patients with central retinal vein occlusion (CRVO). However, most studies published to date exclude ischemic CRVO. The purpose of this study was to describe the outcome in eyes with ischemic CRVO treated with anti-vascular endothelial growth factor therapy. METHODS: Thirty-seven patients with ischemic CRVO from 3 centers were followed for at least 6 months. Data on patient demographic, vision status, and anti-vascular endothelial growth factor treatments were collected...
February 15, 2017: Retina
https://www.readbyqxmd.com/read/28207177/quaking-is-a-key-regulator-of-endothelial-cell-differentiation-neovascularization-and-angiogenesis
#8
Amy Cochrane, Sophia Kelaini, Marianna Tsifaki, James Bojdo, Marta Vilà-González, Daiana Drehmer, Rachel Caines, Corey Magee, Magdalini Eleftheriadou, Yanhua Hu, David Grieve, Alan W Stitt, Lingfang Zeng, Qingbo Xu, Andriana Margariti
The capability to derive endothelial cell (ECs) from induced Pluripotent Stem (iPS) cells holds huge therapeutic potential for cardiovascular disease. Objective- This study elucidates the precise role of the RNA-binding protein Quaking isoform 5 (QKI-5) during EC differentiation from both mouse and human iPS cells and dissects how RNA-binding proteins can improve differentiation efficiency towards cell therapy for important vascular diseases. iPS cells represent an attractive cellular approach for regenerative medicine today since they can be used to generate patient-specific therapeutic cells towards autologous cell therapy...
February 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28206671/surgery-for-cataracts-in-people-with-age-related-macular-degeneration
#9
REVIEW
Heather Casparis, Kristina Lindsley, Irene C Kuo, Shameema Sikder, Neil M Bressler
BACKGROUND: Cataract and age-related macular degeneration (AMD) are common causes of decreased vision that often occur simultaneously in people over age 50. Although cataract surgery is an effective treatment for cataract-induced visual loss, some clinicians suspect that such an intervention may increase the risk of worsening of underlying AMD and thus have deleterious effects on vision. OBJECTIVES: The objective of this review was to evaluate the effectiveness and safety of cataract surgery compared with no surgery in eyes with AMD...
February 16, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28205389/growth-inhibition-of-formed-corneal-neovascularization-following-fosaprepitant-treatment
#10
Fabio Bignami, Anna Lorusso, Paolo Rama, Giulio Ferrari
PURPOSE: The aim of this study was to test the efficacy of Neurokinin-1 Receptor (NK-1R) antagonist -Fosaprepitant- in inducing regression of established corneal neovascularization (CNV). METHODS: Twenty C57BL/6 mice underwent alkali burn. Seven days later, when corneal neovessels had developed, they received Fosaprepitant 10 mg/ml, administered topically six times a day in the right eye for 10 days. In parallel, a group of 20 causticated mice was treated with normal saline, as control...
February 15, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28203250/the-effects-of-punica-granatum-flower-extract-on-skin-injuries-induced-by-burn-in-rats
#11
Ebrahim Nasiri, Seyed Jalal Hosseinimehr, Jafar Akbari, Mohammad Azadbakht, Soheil Azizi
Background. We compared the efficacy of P. granatum (P) flower extract with that of silver sulfadiazine (SSD) for treating thermal burn injuries in rats. Methods. Ten Wistar rats in each group were topically given base cream, normal saline, cream containing 1% SSD, or creams containing 5% or 10% Punica granatum flower extract. The treatments were administered once daily until complete wound healing was observed. The wound area and healing time were assessed. In addition, percentage wound contraction and histopathological characteristics such as neovascularization and collagen formation were determined...
2017: Advances in Pharmacological Sciences
https://www.readbyqxmd.com/read/28203191/airbag-associated-severe-blunt-eye-injury-causes-choroidal-rupture-and-retinal-hemorrhage-a-case-report
#12
Shih Hao Wang, Chen Chee Lim, Yu Ti Teng
A case of choroidal rupture caused by airbag-associated blunt eye trauma and complicated with massive subretinal hemorrhage and vitreous hemorrhage that was successfully treated with intravitreal injection of expansile gas and bevacizumab is presented. A 53-year-old man suffered from loss of vision in his right eye due to blunt eye trauma by a safety airbag after a traffic accident. On initial examination, the patient had no light perception in his right eye. Dilated ophthalmoscopy revealed massive subretinal hemorrhage with macular invasion and faint vitreous hemorrhage...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28199833/fgf21-administration-suppresses-retinal-and-choroidal-neovascularization-in-mice
#13
Zhongjie Fu, Yan Gong, Raffael Liegl, Zhongxiao Wang, Chi-Hsiu Liu, Steven S Meng, Samuel B Burnim, Nicholas J Saba, Thomas W Fredrick, Peyton C Morss, Ann Hellstrom, Saswata Talukdar, Lois E H Smith
Pathological neovascularization, a leading cause of blindness, is seen in retinopathy of prematurity, diabetic retinopathy, and age-related macular degeneration. Using a mouse model of hypoxia-driven retinal neovascularization, we find that fibroblast growth factor 21 (FGF21) administration suppresses, and FGF21 deficiency worsens, retinal neovessel growth. The protective effect of FGF21 against neovessel growth was abolished in adiponectin (APN)-deficient mice. FGF21 administration also decreased neovascular lesions in two models of neovascular age-related macular degeneration: very-low-density lipoprotein-receptor-deficient mice with retinal angiomatous proliferation and laser-induced choroidal neovascularization...
February 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/28199294/flow-induced-microvascular-network-formation-of-therapeutic-relevant-arteriovenous-av-loop-based-constructs-in-response-to-ionizing-radiation
#14
Volker J Schmidt, Jennifer M Covi, Christoph Koepple, Johannes G Hilgert, Elias Polykandriotis, Amir K Bigdeli, Luitpold V Distel, Raymund E Horch, Ulrich Kneser
BACKGROUND The arteriovenous (AV) loop model enables axial vascularization to gain a functional microcirculatory system in tissue engineering constructs in vivo. These constructs might replace surgical flaps for the treatment of complex wounds in the future. Today, free flaps are often exposed to high-dose radiation after defect coverage, according to guideline-oriented treatment plans. Vascular response of AV loop-based constructs has not been evaluated after radiation, although it is of particular importance...
February 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28198786/optical-coherence-tomography-angiography-in-adult-onset-foveomacular-vitelliform-dystrophy
#15
Komal M Joshi, Peter L Nesper, Amani A Fawzi, Rukhsana G Mirza
PURPOSE: To determine the ability of optical coherence tomography angiography (OCTA) to detect choroidal neovascularization (CNV) in the pseudohypopyon stage of adult-onset foveomacular vitelliform dystrophy. METHODS: Prospective case series of eight consecutive patients with adult-onset foveomacular vitelliform dystrophy with at least one eye in the pseudohypopyon stage (a total of 14 eyes). Patients were assessed with spectral domain OCT, flourescein angiography, and OCTA...
February 14, 2017: Retina
https://www.readbyqxmd.com/read/28198165/vascular-endothelial-growth-factor-transfected-adipose-derived-stromal-cells-enhance-bone-regeneration-and-neovascularization-from-bone-marrow-stromal-cells
#16
Mi-Lan Kang, Ji-Eun Kim, Gun-Il Im
Vascular endothelial growth factor (VEGF)-transfected adipose-derived stromal cells (ADSCs(VEGF) ) were devised to promote bone regeneration and neovascularization of bone marrow stromal cells (BMSCs). ADSCs(VEGF) were added to BMSCs and cocultured in variable proportions. ADSCs(VEGF) alone or ADSCs(VEGF) with BMSCs (BMSCs:ADSCs(VEGF) ratio of 1:0.025-0.5) induced significantly greater tube formation in human umbilical vein endothelial cells than untransfected ADSCs. The cocultures of BMSCs and ADSCs(VEGF) at ratios of 1: 0...
February 15, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28197783/freezing-nitrogen-ethanol-composite-may-be-a-viable-approach-for-cryotherapy-of-human-giant-cell-tumor-of-bone
#17
Po-Kuei Wu, Cheng-Fong Chen, Jir-You Wang, Paul Chih-Hsueh Chen, Ming-Chau Chang, Shih-Chieh Hung, Wei-Ming Chen
BACKGROUND: Liquid nitrogen has been used as adjuvant cryotherapy for treating giant cell tumor (GCT) of bone. However, the liquid phase and ultrafreezing (-196° C) properties increase the risk of damage to the adjacent tissues and may lead to perioperative complications. A novel semisolid cryogen, freezing nitrogen ethanol composite, might mitigate these shortcomings because of less-extreme freezing. We therefore wished to evaluate freezing nitrogen ethanol composite as a coolant to determine its properties in tumor cryoablation...
February 14, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28196060/angiographic-subtypes-of-polypoidal-choroidal-vasculopathy-in-taiwan-a-prospective-multicenter-study
#18
Ling Yeung, Chien-Neng Kuo, An-Ning Chao, Kuan-Jen Chen, Wei-Chi Wu, Chien-Hsiung Lai, Nan-Kai Wang, Yih-Shiou Hwang, Ching-Lung Chen, Chi-Chun Lai
PURPOSE: To determine the incidence and clinical characteristics of angiographic subtypes of polypoidal choroidal vasculopathy (PCV). METHODS: It is a prospective, multicenter, cross-sectional study. Patients with newly diagnosed exudative macular degeneration are classified into PCV, age-related macular degeneration (AMD), and retinal angiomatous proliferation. Polypoidal choroidal vasculopathy is further classified into two subtypes depending on the presence (Type 1: polypoidal choroidal neovascularization) or absence (Type 2: typical PCV) of feeder vessels on indocyanine green angiography...
February 10, 2017: Retina
https://www.readbyqxmd.com/read/28195603/classification-of-exudative-age-related-macular-degeneration-with-pachyvessels-on-en-face-swept-source-optical-coherence-tomography
#19
Danny Siu-Chun Ng, Malini Bakthavatsalam, Frank Hiu-Ping Lai, Carol Yim-Lui Cheung, Gemmy Chu-Ming Cheung, Fang Yao Tang, Chi Wai Tsang, Timothy Yuk-Yau Lai, Tien Yin Wong, Mårten Erik Brelén
Purpose: The purpose of this study was to classify exudative maculopathy by the presence of pachyvessels on en face swept-source optical coherence tomography (SSOCT). Methods: Consecutive patients with signs of exudative maculopathy underwent SSOCT, fluorescein and indocyanine green angiography (ICGA), ultra-widefield fundus color photography, and autofluorescence examinations. Images were analyzed in a masked fashion by two sets of four examiners in different sessions: (1) the presence of pachyvessels in en face OCT and (2) features of exudative maculopathy in conventional imaging modalities...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28195189/protective-effect-of-maternal-uteroplacental-insufficiency-on-oxygen-induced-retinopathy-in-offspring-removing-bias-of-premature-birth
#20
Silke Becker, Haibo Wang, Baifeng Yu, Randy Brown, Xiaokun Han, Robert H Lane, M Elizabeth Hartnett
To address the hypothesis that maternal uteroplacental insufficiency (UPI) increases severity of retinopathy of prematurity, we developed a composite rat model of UPI and oxygen-fluctuations and removed premature birth as a confounding factor. Timed-pregnant Sprague-Dawley dams underwent bilateral uterine artery ligation or anesthesia (control) at e19.5. Full-term pups developed in room air (RA) or an oxygen-induced retinopathy (OIR) model. Isolectin-stained retinal flat-mounts were analyzed for percent of areas of avascular/total retina (AVA) and of intravitreal neovascular/total retina (IVNV)...
February 14, 2017: Scientific Reports
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