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https://www.readbyqxmd.com/read/27915321/anti-vascular-endothelial-growth-factor-preparations-in-the-treatment-of-retinopathy-of-prematurity-balancing-risks-and-benefits
#1
Deepak Chawla, Brian A Darlow
NEED AND PURPOSE OF REVIEW: The standard of management of severe retinopathy of prematurity (ROP) is laser ablation of the peripheral retina. Intra-vitreal injection of anti- vascular endothelial growth factor antibodies has emerged as an alternative modality of treatment of ROP. The purpose of this review is to evaluate the current evidence on benefits and risks of using anti-VEGF antibodies for management of ROP. METHODS: PubMed and Cochrane Register of Clinical Trials were searched for studies evaluating role of anti-VEGF agents in ROP...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915012/intra-laboratory-validated-human-cell-based-in-vitro-vasculogenesis-angiogenesis-test-with-serum-free-medium
#2
T Toimela, O Huttala, E Sabell, M Mannerström, J R Sarkanen, T Ylikomi, T Heinonen
Vasculogenesis and angiogenesis are the processes by which new blood vessels are formed. We have developed a serum-free human adipose stromal cell and umbilical cord vein endothelial cell based vasculogenesis/angiogenesis test. In this study, the test was validated in our GLP laboratory following the OECD Guidance Document 34 [1] using erlotinib, acetylic salicylic acid, levamisole, 2-methoxyestradiol, anti-VEGF, methimazole, and D-mannitol to show its reproducibility, repeatability, and predictivity for humans...
November 30, 2016: Reproductive Toxicology
https://www.readbyqxmd.com/read/27913969/laser-photobiomodulation-830-and-660%C3%A2-nm-in-mast-cells-vegf-fgf-and-cd34-of-the-musculocutaneous-flap-in-rats-submitted-to-nicotine
#3
Lais Mara Siqueira das Neves, Gabriella de Paula Marcondes Ferreira Leite, Alexandre Marcio Marcolino, Carlos Eduardo Pinfildi, Sérgio Britto Garcia, João Eduardo de Araújo, Elaine Caldeira de Oliveira Guirro
The aim of this study was to investigate the effect of laser photobiomodulation (PBM) on the viability of the transverse rectus abdominis musculocutaneous (TRAM) flap in rats subjected to the action of nicotine. We evaluated 60 albino Wistar rats, divided into six groups of ten animals. Group 1 (saline) underwent the surgical technique to obtain a TRAM flap; group 2 (laser 830 nm) underwent the surgical technique and was irradiated with a laser 830 nm; group 3 (laser 660 nm) underwent the surgical technique and was irradiated with a laser 660 nm; group 4 was treated with nicotine subcutaneously (2 mg/kg/2×/day/4 weeks) and underwent surgery; group 5 (nicotine + laser 830 nm) was exposed to nicotine, underwent the surgical technique, and was irradiated with a laser 830 nm; group 6 (nicotine + laser 660 nm) was exposed to nicotine, underwent the surgical technique, and was irradiated with a laser 660 nm...
December 2, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27913654/novel-small-molecule-jp-153-targets-the-src-fak-paxillin-signaling-complex-to-inhibit-vegf-induced-retinal-angiogenesis
#4
Jordan J Toutounchian, Jayaprakash Pagadala, Duane D Miller, Jerome Baudry, Frank Park, Edward Chaum, Charles R Yates
Targeting vascular endothelial growth factor (VEGF) is a common treatment strategy for neovascular eye disease, a major cause of vision loss in diabetic retinopathy and age-related macular degeneration. However, the decline in clinical efficacy over time in many patients suggests that monotherapy of anti-VEGF protein therapeutics may benefit from adjunctive treatments. Our previous work has shown that through decreased activation of the cytoskeletal protein paxillin, growth factor-induced ischemic retinopathy in the murine oxygen-induced retinopathy model could be inhibited...
January 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/27913442/comparison-of-anti-vegf-therapies-on-fibrovascular-pigment-epithelial-detachments-in-age-related-macular-degeneration
#5
Adrian Au, Vishal S Parikh, Rishi P Singh, Justis P Ehlers, Alex Yuan, Aleksandra V Rachitskaya, Jonathan E Sears, Sunil K Srivastava, Peter K Kaiser, Andrew P Schachat, Daniel F Martin, Yasha Modi
BACKGROUND: The aim is to compare the therapeutic effects of three antivascular endothelial growth factor (VEGF) drugs (bevacizumab, aflibercept and ranibizumab) on fibrovascular pigment epithelial detachments (fvPEDs) in age-related macular degeneration (AMD). METHODS: This was a retrospective, comparative, consecutive case series of 88 unique eyes with fvPEDs in neovascular AMD treated with anti-VEGF monotherapy for a minimum of 6 months. All eyes were treatment naive...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27909732/early-vegf-inhibition-attenuates-blood-brain-barrier-disruption-in-ischemic-rat-brains-by-regulating-the-expression-of-mmps
#6
Hai-Tao Zhang, Ping Zhang, Yi Gao, Chen-Long Li, Hong-Jun Wang, Ling-Chao Chen, Yan Feng, Rui-Yan Li, Yong-Li Li, Chuan-Lu Jiang
Vascular endothelial growth factor (VEGF) inhibition has been demonstrated to be an effective strategy in preserving the integrity of the blood-brain barrier (BBB) in patients with acute ischemic stroke. Loss of the BBB is the key event associated with morbidity and mortality in these patients. However, the underlying mechanisms remain poorly understood. In the present study, the effects of VEGF inhibition and the possible mechanism that underlies acute cerebral ischemia in rats was investigated. Following the induction of transient middle cerebral artery occlusion for a 90‑min period, either an anti‑VEGF neutralizing antibody (RB‑222; 5 or 10 µg), or IgG (control), was administered by intracerebroventricular injection at 1 h following reperfusion...
November 29, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27907852/the-relevance-of-primary-tumour-location-in-patients-with-metastatic-colorectal-cancer-a-meta-analysis-of-first-line-clinical-trials
#7
Julian Walter Holch, Ingrid Ricard, Sebastian Stintzing, Dominik Paul Modest, Volker Heinemann
BACKGROUND: Retrospective subgroup analyses suggest that primary tumour location (PTL) has a prognostic importance and relates to response to targeted therapy. METHODS: We conducted a meta-analysis of first-line clinical trials available up to October 2016, which assessed the relevance of PTL in patients with metastatic colorectal cancer (mCRC). Right- and left-sided colorectal cancers were differentiated (RC and LC). RESULTS: In 13 first-line randomised controlled trials and one prospective pharmacogenetic study, RC was associated with a significantly worse prognosis compared with LC (hazard ratio [HR] for overall survival: 1...
November 29, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27900561/mineralocorticoid-antagonists-as-adjuncts-in-neovascular-age-related-macular-degeneration
#8
Kapil G Kapoor, Niket Todi, Alan L Wagner
INTRODUCTION: The purpose of this project was to evaluate the role of MR antagonists as an adjunct in patients with neovascular age-related macular degeneration (AMD) who have chronic subretinal fluid. METHODS: Inclusion criteria were patients with a diagnosis of neovascular AMD, who had completed at least six anti-VEGF injections, and had persistent subretinal fluid (SRF) on optical coherence tomography (OCT). Treatment with oral eplerenone was initiated and dose titrated according to protocol...
November 29, 2016: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/27897101/platelets-from-glioblastoma-patients-promote-angiogenesis-of-tumor-endothelial-cells-and-exhibit-increased-vegf-content-and-release
#9
Clara Di Vito, Stefania Elena Navone, Giovanni Marfia, Loubna Abdel Hadi, Maria Elisa Mancuso, Alessandro Pecci, Francesco Maria Crisà, Valeria Berno, Paolo Rampini, Rolando Campanella, Laura Riboni
Glioblastoma multiforme (GBM) is the most common and fatal intracranial cancer in humans and exhibits intense and aberrant angiogenesis that sustains its malignancy and involves several angiogenic signals. Among them, vascular endothelial growth factor (VEGF) plays a key role and is overexpressed in GBM. Different cells appear to act as triggers of the aberrant angiogenesis, and, among them, platelets act as key participants. In order to provide further insights into the platelet features and angiogenic role in GBM, this study investigated the effects of platelet releasate on GBM-derived endothelial cells (GECs) and the levels of VEGF and endostatin, as pro- and anti-angiogenic components of platelet releasate from GBM patients...
November 29, 2016: Platelets
https://www.readbyqxmd.com/read/27895936/neovascular-glaucoma-a-review
#10
REVIEW
Gustavo B Rodrigues, Ricardo Y Abe, Camila Zangalli, Savio L Sodre, Flavia A Donini, Danilo C Costa, Andre Leite, Joao P Felix, Marcelo Torigoe, Alberto Diniz-Filho, Homero Gusmão de Almeida
Neovascular glaucoma (NVG) is a secondary glaucoma generally associated with poor visual prognosis. The development of new vessels over the iris and the iridocorneal angle can obstruct aqueous humor outflow and lead to increased intraocular pressure. The underlying pathogenesis in most cases is posterior segment ischemia, which is most commonly secondary to proliferative diabetic retinopathy or central vein retinal occlusion. The neovascularization process in the eye is driven by the events that alter the homeostatic balance between pro-angiogenic factors, such as the vascular endothelial growth factor and anti-angiogenic factors, such as the pigment-epithelium-derived factor...
2016: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/27892514/gwas-study-using-dna-pooling-strategy-identifies-association-of-variant-rs4910623-in-or52b4-gene-with-anti-vegf-treatment-response-in-age-related-macular-degeneration
#11
Moeen Riaz, Laura Lorés-Motta, Andrea J Richardson, Yi Lu, Grant Montgomery, Amer Omar, Robert K Koenekoop, John Chen, Philipp Muether, Lebriz Altay, Tina Schick, Sascha Fauser, Dzenita Smailhodzic, Freekje van Asten, Eiko K de Jong, Carel B Hoyng, Kathryn P Burdon, Stuart MacGregor, Robyn H Guymer, Anneke I den Hollander, Paul N Baird
Pooled DNA based GWAS to determine genetic association of SNPs with visual acuity (VA) outcome in anti-vascular endothelial growth factor (anti-VEGF) treated neovascular age-related macular degeneration (nAMD) patients. We performed pooled DNA based GWAS on 285 anti-VEGF treated nAMD patients using high density Illumina 4.3 M array. Primary outcome was change in VA in Early Treatment Diabetic Retinopathy Study (ETDRS) letters after 6 months of anti-VEGF treatment (patients who lost ≥5 ETDRS letters classified as non-responders and all remaining classified as responders)...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27890437/trends-of-anti-vascular-endothelial-growth-factor-use-in-ophthalmology-among-privately-insured-and-medicare-advantage-patients
#12
Ravi Parikh, Joseph S Ross, Lindsey R Sangaralingham, Ron A Adelman, Nilay D Shah, Andrew J Barkmeier
PURPOSE: To characterize the first 10 years of intravitreal anti-vascular endothelial growth factor (VEGF) medication use for ophthalmic disease, including bevacizumab, ranibizumab, and aflibercept. DESIGN: A retrospective cohort study using administrative claims data from January 1, 2006 to December 31, 2015. SUBJECTS: Total of 124 835 patients 18 years of age or over in the United States. METHODS: OptumLabs Data Warehouse, which includes administrative claims data for over 100 million commercially insured and Medicare Advantage individuals, was used to identify patients receiving intravitreal anti-VEGF injections based on Current Procedural Terminology codes...
November 24, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27884546/-results-of-trabeculectomy-with-anti-vgef-therapy-in-the-treatment-of-neovascular-glaucoma-secondary-to-retinal-vein-occlusion-report-of-21%C3%A2-cases-followed-at-bukavu-eye-clinic-from-january-1%C3%A2-to-december-31th-2015
#13
T B Kabesha, D Kabesha, V Maloba, C Mwamba, B Chenge, A Mukalay
PURPOSE: To evaluate the results of anti-VGEF with trabeculectomy in the treatment of neovascular glaucoma, a severe complication of retinal vein occlusion (RVO). PATIENTS AND METHODS: This is a prospective case series of consecutive patients with neovascular glaucoma secondary to retinal vein occlusion. All patients underwent panretinal photocoagulation and a mean of 3 anti-VEGF injections prior to trabeculectomy. Ophthalmic parameters were recorded pre- and postoperatively: visual acuity (VA), intraocular pressure (IOP), iris examination, gonioscopy and fundus examination, and as necessary, fluorescein angiography...
November 21, 2016: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/27881184/stereotactic-radiotherapy-for-wet-age-related-macular-degeneration-star-study-protocol-for-a-randomised-controlled-clinical-trial
#14
James E Neffendorf, Riti Desai, Yanzhong Wang, Joanna Kelly, Caroline Murphy, Barnaby C Reeves, Usha Chakravarthy, Sarah Wordsworth, Cornelius Lewis, Janet Peacock, Shahir Uddin, Joe M O'Sullivan, Timothy L Jackson
BACKGROUND: The standard of care for neovascular age-related macular degeneration (nAMD) involves ongoing intravitreal injections of anti-angiogenic drugs targeting vascular endothelial growth factor (VEGF). The most commonly used anti-VEGF drugs are ranibizumab, bevacizumab and aflibercept. The main objective of the STAR trial is to determine if stereotactic radiotherapy can reduce the number of anti-VEGF injections that patients with nAMD require. METHODS/DESIGN: STAR is a multicentre, double-masked, randomised, sham-controlled clinical trial...
November 24, 2016: Trials
https://www.readbyqxmd.com/read/27878613/intermittent-low-dose-bevacizumab-in-hereditary-hemorrhagic-telangiectasia-a%C3%A2-case-report
#15
Florian Huemer, Martin Dejaco, Christoph Grabmer, Thomas Melchardt, Daniel Neureiter, Georg Mayer, Alexander Egle, Richard Greil, Lukas Weiss
BACKGROUND: Hereditary hemorrhagic telangiectasia is an inherited autosomal dominant disease presenting with recurrent bleeding episodes and iron deficiency anemia due to vascular malformations. Hereditary hemorrhagic telangiectasia is associated with an increased risk of stroke, gastrointestinal bleeding and pulmonary hypertension and life expectancy is significantly reduced. Excess vascular endothelial growth factor (VEGF) plays a key role in the pathophysiology of the disease. CASE PRESENTATION: Here we report about a male patient with hereditary hemorrhagic telangiectasia presenting with pulmonary and central nervous system involvement experiencing repetitive nosebleeds, necessitating frequent local cauterization and transfusion of more than 100 units of packed red blood cells...
November 23, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27877208/selection-analysis-and-improvement-of-anti-angiogenesis-compounds-identified-by-an-anti-hif-1%C3%AE-screening-and-validation-system
#16
Chikezie Madu, Liyuan Li, Yi Lu
Cancer cells resort to activating hypoxia-inducible factor-1 (HIF-1) as one of several responses to hypoxic conditions. Overexpression of HIF-1, the transcriptional regulator for a group of malignant-pathway related genes including vascular endothelial growth factor (VEGF), is associated with increased tumor growth, vascularization, and metastasis. HIF-1 is composed of an inducible subunit, HIF-1α and a constitutively expressed subunit, HIF-1ß. HIF-1 activity is mainly dependent on the level of HIF-1α protein, the inducible and regulatory subunit of the HIF-1 heterodimer complex; thus, identification of novel anti-HIF-1α agents will lead to effective blockage of the HIF-1 (HIF-1α)-mediated "switch-on" function for those malignant-pathway related genes and suppression of the HIF-1α/VEGF-mediated signaling pathway that promotes cancer progression and metastasis...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27871478/transendothelial-migration-of-human-umbilical-mesenchymal-stem-cells-across-uterine-endothelial-monolayers-junctional-dynamics-and-putative-mechanisms
#17
Neven A Ebrahim, Lopa Leach
INTRODUCTION: During pregnancy, fetal stem cells can transfer to the maternal circulation and participate in tissue repair. How they transmigrate across maternal endothelial barriers and whether they can subsequently influence maternal endothelial integrity is not known. METHODS: Mesenchymal stem cells (WJ-MSC) were isolated from Wharton's jelly and their interactions with human uterine microvascular endothelial cell (HUtMEC) monolayers, junctional occupancy and expression/phosphorylation of vascular endothelial (VE)- cadherin and vascular endothelial growth factor (VEGF-A) secretion was studied over 48h by real time, confocal microscopy, immunoblotting and ELISA...
December 2016: Placenta
https://www.readbyqxmd.com/read/27868009/the-potential-of-anti-vegf-vasotide-by-eye-drops-to-treat-proliferative-retinopathies
#18
COMMENT
Jennifer L Wilkinson-Berka, Devy Deliyanti
No abstract text is available yet for this article.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27865689/retinal-oximetry-during-treatment-of-retinal-vein-occlusion-by-ranibizumab-in-patients-with-high-blood-pressure-and-dyslipidemia
#19
C Keilani, A Halalchi, D Wakpi Djeugue, A Regis, S Abada
INTRODUCTION: In the present study, we examined retinal vascular oxygen saturation in patients with retinal vein occlusion (RVO), high blood pressure (HBP) and dyslipidemia, before and during intravitreal vascular endothelial growth factor (VEGF) injection (ranibizumab). METHODS: We retrospectively reviewed the medical records of six patients with visual acuity (VA) reduced by macular edema (ME) secondary to RVO with HBP and dyslipidemia, who underwent intravitreal anti-VEGF injection between October 2014 and February 2015 in the department of ophthalmology of François-Quesnay Hospital at Mantes-la-Jolie (France)...
November 16, 2016: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/27863843/score2-report-2-study-design-and-baseline-characteristics
#20
Ingrid U Scott, Paul C VanVeldhuisen, Michael S Ip, Barbara A Blodi, Neal L Oden, Maria Figueroa, Pravin U Dugel
PURPOSE: To describe the design and baseline characteristics of participants in the Study of COmparative Treatments for REtinal Vein Occlusion 2 (SCORE2) and to compare with cohorts from other retinal vein occlusion trials. DESIGN: Phase III prospective, multicenter, randomized clinical trial designed to assess whether intravitreal bevacizumab is noninferior to intravitreal aflibercept for treatment of decreased vision attributable to macular edema associated with central retinal vein occlusion (CRVO) or hemiretinal vein occlusion (HRVO)...
November 15, 2016: Ophthalmology
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