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https://www.readbyqxmd.com/read/28107458/neuropilin-1-involvement-in-choroidal-and-retinal-neovascularisation
#1
Patricia Fernández-Robredo, Senthil Selvam, Michael B Powner, Dawn A Sim, Marcus Fruttiger
PURPOSE: Inhibiting VEGF is the gold standard treatment for neovascular age-related macular degeneration (AMD). It is also effective in preventing retinal oedema and neovascularisation (NV) in diabetic retinopathy (DR) and retinal vein occlusions (RVO). Neuropilin 1 (Nrp1) is a co-receptor for VEGF and many other growth factors, and therefore a possible alternative drug target in intra ocular neovascular disease. Here we assessed choroidal and retinal NV in an inducible, endothelial specific knock out model for Nrp1...
2017: PloS One
https://www.readbyqxmd.com/read/28106891/neovascular-age-related-macular-degeneration-is-it-worthwhile-treating-an-eye-with-poor-visual-acuity-if-the-visual-acuity-of-the-fellow-eye-is-good
#2
A Rasmussen, J Fuchs, L H Hansen, M Larsen, B Sander, H Lund-Andersen
No abstract text is available yet for this article.
January 20, 2017: Eye
https://www.readbyqxmd.com/read/28106709/systemic-pharmacokinetics-and-pharmacodynamics-of-intravitreal-aflibercept-bevacizumab-and-ranibizumab
#3
Robert L Avery, Alessandro A Castellarin, Nathan C Steinle, Dilsher S Dhoot, Dante J Pieramici, Robert See, Stephen Couvillion, Maʼan A Nasir, Melvin D Rabena, Mauricio Maia, Sherri Van Everen, Kha Le, William D Hanley
PURPOSE: To evaluate the systemic pharmacokinetics (PKs) of aflibercept, bevacizumab, and ranibizumab in patients with neovascular age-related macular degeneration (AMD), diabetic macular edema (DME), or retinal vein occlusion (RVO). METHODS: Prospective, open-label, nonrandomized clinical trial of patients with AMD, DME, or RVO who were antivascular endothelial growth factor (VEGF) naïve or had not received anti-VEGF for ≥4 months. Patients received 3 monthly intravitreal injections of aflibercept 2...
January 18, 2017: Retina
https://www.readbyqxmd.com/read/28106291/ocular-effects-of-sulfur-mustard-and-therapeutic-approaches-a-review
#4
Yunes Panahi, Seyyed Mahdi Rajaee, Amirhossein Sahebkar
Sulfur mustard (SM) is a strong blistering, highly reactive, lipophilic chemical war agent that causes injury in different organs including the skin, eyes and respiratory tract. The Eyes are especially susceptible to the consequences of SM poisoning because of the aqueous and mucosal nature of conjunctiva and cornea. DNA alkylation and depletion of glutathione, are the most important mechanisms of SM action in the eye injuries. Acute clinical symptoms are including decrease in visual acuity, dryness, photophobia, blepharospasm, conjunctivitis and complaints of foreign body sensation and soreness that gradually progress to severe ocular pain...
January 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28106169/inhibition-of-nucks-facilitates-corneal-recovery-following-alkali-burn
#5
Ming-Wai Poon, Dan Jiang, Peng Qin, Yuelin Zhang, Beiying Qiu, Sumit Chanda, Vinay Tergaonkar, Qing Li, Ian Y Wong, Zhendong Yu, Hung-Fat Tse, David S H Wong, Qizhou Lian
Corneal wound healing involves a complex cascade of cytokine-controlled cellular events, including inflammatory and angiogenesis responses that are regulated by transcriptional chromatin remodeling. Nuclear Ubiquitous Casein and cyclin-dependent Kinase Substrate (NUCKS) is a key chromatin modifier and transcriptional regulator of metabolic signaling. In this study, we investigated the role of NUCKS in corneal wound healing by comparing its effects on corneal alkali burn in NUCKS knockout (NKO) and NUCKS wild-type (NWT) mice...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105626/-effect-of-polyunsaturated-fatty-acids-%C3%AF-3-and-%C3%AF-6-on-angiogenesis-formation-in-human-gastric-cancer
#6
Jiachi Ma, Yuntao Ma, Tiankang Guo, Quan Chen, Yiping Li, He Su, Xiaochang Chen, Xiaodan Zhao, Qinjin Guo, Jianbo Qi
OBJECTIVE: To investigate the effects of polyunsaturated fatty acids (PUFA) ω-3 and ω-6, and their middle metabolites PGE2 and PGE3 on angiogenesis formation of gastric cancer, and to explore associated mechanism. METHODS: The effects of ω-3, ω-6, PGE2, PGE3 on the proliferation and migration of human umbilical vein endothelial cell (HUVEC) were measured by proliferation and migration assay respectively. The angiogenesis assay in vivo was used to measure the effects of ω-3, ω-6, PGE2 and PGE3 on neovascularization...
January 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28104803/microrna-processing-enzymes-are-essential-for-survival-and-function-of-mature-retinal-pigmented-epithelial-cells-in-mice
#7
Thomas R Sundermeier, Sanae Sakami, Bhubanananda Sahu, Scott J Howell, Songqi Gao, Zhiqian Dong, Marcin Golczak, Akiko Maeda, Krzysztof Palczewski
Age-related macular degeneration (AMD) is a major cause of irreversible vision loss. The neovascular or "wet" form of AMD can be treated to a varying degree with anti-angiogenic drugs, but geographic atrophy (GA) is an advanced stage of the more prevalent "dry" form of AMD for which there is no effective treatment. Development of GA has been linked to loss of the microRNA (miRNA)-processing enzyme DICER1 in the mature retinal pigmented epithelium (RPE). This loss results in the accumulation of toxic transcripts of Alu transposable elements which activate the NLRP3 inflammasome and additional downstream pathways that compromise the integrity and function of the RPE...
January 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28104642/evaluation-of-encephaloduroarteriosynangiosis-efficacy-using-probabilistic-independent-component-analysis-applied-to-dynamic-susceptibility-contrast-perfusion-mri
#8
A N Laiwalla, F Kurth, K Leu, R Liou, J Pamplona, Y C Ooi, N Salamon, B M Ellingson, N R Gonzalez
BACKGROUND AND PURPOSE: Indirect cerebral revascularization has been successfully used for treatment in Moyamoya disease and symptomatic intracranial atherosclerosis. While angiographic neovascularization has been demonstrated after surgery, measurements of local tissue perfusion are scarce and may not reflect the reported successful clinical outcomes. We investigated probabilistic independent component analysis and conventional perfusion parameters from DSC-MR imaging to measure postsurgical changes in tissue perfusion...
January 19, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28103831/demographics-of-patients-receiving-intravitreal-anti-vegf-treatment-in-real-world-practice-healthcare-research-data-versus-randomized-controlled-trials
#9
F Ziemssen, N Feltgen, F G Holz, R Guthoff, A Ringwald, T Bertelmann, A Wiedon, C Korb
BACKGROUND: While randomized controlled trials (RCTs) are based on strict inclusion/exclusion criteria, non-interventional studies (NISs) might provide additional information to guide management in patients more representative to the real-world setting. The aim of this study was to compare baseline characteristics of patients receiving intravitreal treatment in the NIS OCEAN with those from published RCTs. METHODS: The ongoing OCEAN study enrolled patients treated with ranibizumab for neovascular age-related macular degeneration (nAMD), diabetic macular oedema (DME) or branch/central retinal vein occlusion (B/CRVO)...
January 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28103602/intraocular-cytokines-and-their-correlations-with-clinical-parameters-in-patients-with-myopic-choroidal-neovascularization
#10
Andrey G Shchuko, Natalia V Zaitseva, Tatyana N Yurieva, Elena R Chernykh, Isay M Mikhalevich, Ekaterina Y Shevela, Alina V Grigorieva
PURPOSE: To study cytokine levels in aqueous humor of patients with myopic choroidal neovascularization (mCNV), their correlations with each other and ocular parameters. METHODS: Ophthalmological examination and immunological study of aqueous humor with cytokine levels measurement (Bio-Plex™ Human Cytokine 27-Plex panel; Bio-Rad Laboratories, USA) were performed in 19 patients (19 eyes) with ranibizumab-treated mCNV and compared to 15 patients (15 eyes) with myopia without CNV...
January 20, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28102741/tutorial-on-biostatistics-linear-regression-analysis-of-continuous-correlated-eye-data
#11
Gui-Shuang Ying, Maureen G Maguire, Robert Glynn, Bernard Rosner
PURPOSE: To describe and demonstrate appropriate linear regression methods for analyzing correlated continuous eye data. METHODS: We describe several approaches to regression analysis involving both eyes, including mixed effects and marginal models under various covariance structures to account for inter-eye correlation. We demonstrate, with SAS statistical software, applications in a study comparing baseline refractive error between one eye with choroidal neovascularization (CNV) and the unaffected fellow eye, and in a study determining factors associated with visual field in the elderly...
January 19, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28102456/efficacy-and-safety-of-a-fixed-bimonthly-ranibizumab-treatment-regimen-in-eyes-with-neovascular-age-related-macular-degeneration-results-from-the-rabimo-trial
#12
Nicolas Feltgen, Thomas Bertelmann, Mirko Bretag, Sebastian Pfeiffer, Reinhard Hilgers, Josep Callizo, Lena Goldammer, Sebastian Bemme, Hans Hoerauf
PURPOSE: To evaluate prospectively the efficacy and safety of a fixed bimonthly ranibizumab treatment regimen (RABIMO) in eyes with neovascular age-related macular degeneration (nAMD) and to compare these results with a pro re nata (PRN) treatment scheme. METHODS: This was a 12-month, phase IV, single center, randomised, non-inferiority study. Following three initial monthly injections, patients were randomised to receive either ranibizumab bimonthly (RABIMO group) or ranibizumab PRN (PRN group) (n = 20 each)...
January 19, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28100845/role-of-prometastatic-factors-in-gastric-cancer-development
#13
Marta Tkacz, Maciej Tarnowski, Marzena Staniszewska, Andrzej Pawlik
The second half of the 20th century has seen a sharp worldwide decline in both the incidence and mortality of gastric cancer. Despite this, gastric cancer is the most common cause of mortality in the world. It is closely related to the commonly asymptomatic course at the beginning and delayed diagnosis. Approximately 90‑97% of stomach cancers are adenocarcinomas, which may be subdivided histologically into two categories - intestinal type, and diffuse type. Cancer metastasis is a complex multi‑step process that is closely associated with tumor phenotype...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100839/tyrosine-kinase-blocking-collagen-iv-derived-peptide-suppresses-ocular-neovascularization-and-vascular-leakage
#14
Raquel Lima E Silva, Yogita Kanan, Adam C Mirando, Jayoung Kim, Ron B Shmueli, Valeria E Lorenc, Seth D Fortmann, Jason Sciamanna, Niranjan B Pandey, Jordan J Green, Aleksander S Popel, Peter A Campochiaro
Vascular endothelial growth factor (VEGF)-neutralizing proteins provide benefit in several retinal and choroidal vascular diseases, but some patients still experience suboptimal outcomes, and the need for frequent intraocular injections is a barrier to good outcomes. A mimetic peptide derived from collagen IV, AXT107, suppressed subretinal neovascularization (NV) in two mouse models predictive of effects in neovascular age-related macular degeneration (NVAMD) and inhibited retinal NV in a model predictive of effects in ischemic retinopathies...
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28099976/vasculature-characterization-of-a-multiterritory-perforator-flap-an-experimental-study
#15
Long Wang, Zong-Wei Zhou, Liang-Hui Yang, Xian-Yao Tao, Xiao-Liang Feng, Jian Ding, Wei-Yang Gao
Background Tip necrosis in the perforator flap is a significant problem in clinical practice. This study aimed to characterize the vasculature of a multiterritory perforator flap using a rat model and to investigate the impact of the vasculature on flap survival. Methods In total, 105 Sprague Dawley rats were divided into seven groups, including the control, 3 hours postoperative (PO), 12 hours PO, 1 day PO, 3 days PO, 5 days PO, and 7 days PO. A perforator flap with three territories based on the deep iliac circumflex artery was performed...
January 18, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28098764/iqgap1-in-podosomes-invadosomes-is-involved-in-the-progression-of-glioblastoma-multiforme-depending-on-the-tumor-status
#16
Deborah Rotoli, Natalia Dolores Pérez-Rodríguez, Manuel Morales, María Del Carmen Maeso, Julio Ávila, Ali Mobasheri, Pablo Martín-Vasallo
Glioblastoma multiforme (GBM) is the most frequent and aggressive primary brain tumor. GBM is formed by a very heterogeneous astrocyte population, neurons, neovascularization and infiltrating myeloid cells (microglia and monocyte derived macrophages). The IQGAP1 scaffold protein interacts with components of the cytoskeleton, cell adhesion molecules, and several signaling molecules to regulate cell morphology and motility, cell cycle and other cellular functions. IQGAP1 overexpression and delocalization has been observed in several tumors, suggesting a role for this protein in cell proliferation, transformation and invasion...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098736/foveal-exudate-and-choroidal-neovascularization-in-atypical-cases-of-multiple-evanescent-white-dot-syndrome
#17
Kevin C Chen, Marcela Marsiglia, Rosa Dolz-Marco, Sarwar Zahid, Sarah Mrejen, Jose S Pulido, Salomon Y Cohen, Benjamin Freilich, Lawrence A Yannuzzi, K Bailey Freund
PURPOSE: To describe atypical cases of multiple evanescent white dot syndrome (MEWDS) associated with foveal exudation, increased choroidal thickness, and secondary Type 2 (subretinal) neovascularization. METHODS: Four cases of atypical MEWDS were studied at a retina referral center. Patients underwent evaluation with multimodal retinal imaging, including fluorescein angiography, indocyanine green angiography, spectral-domain and enhanced depth imaging optical coherence tomography (OCT)...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098734/multimodal-fundus-imaging-of-outer-retinal-tubulations-in-choroidal-osteoma-patients
#18
Yi Xuan, Yongjin Zhang, Min Wang, Jinli Guo, Lei Li, Wei Liu, Xiaofeng Ye
PURPOSE: To evaluate the morphological findings of outer retinal tubulations (ORTs) shown on multimodal imaging modalities in patients with choroidal osteoma. METHODS: Nineteen eyes of 17 patients with choroidal osteoma underwent full clinical and imaging assessments. Color fundus photography, spectral-domain optical coherence tomography (OCT), and en face OCT were used to identify and detect the characteristics of ORT structures, including the shape, configuration, location, and distribution in the fundus...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098727/persistent-overproduction-of-intraocular-vascular-endothelial-growth-factor-as-a-cause-of-late-vitreous-hemorrhage-after-vitrectomy-for-proliferative-diabetic-retinopathy
#19
Yoshihiro Wakabayashi, Yoshihiko Usui, Kinya Tsubota, Shunichiro Ueda, Kazuhiko Umazume, Daisuke Muramatsu, Hiroshi Goto
PURPOSE: The purpose of this study was to investigate whether vitreous levels of vascular endothelial growth factor (VEGF) predict late vitreous hemorrhage (VH) after vitrectomy for proliferative diabetic retinopathy, and how VEGF level changes in patients with postoperative late VH. METHODS: Eighty-five eyes of 68 patients with proliferative diabetic retinopathy who underwent vitrectomy were analyzed retrospectively. Vitreous samples were collected from eyes undergoing primary vitrectomy and from eyes with late VH undergoing second vitrectomy...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098725/how-vitreomacular-interface-modifies-the-efficacy-of-anti-vegf-therapy-for-myopic-choroidal-neovascularization
#20
Pierluigi Iacono, Maurizio Battaglia Parodi, Lorenzo Iuliano, Francesco Bandello
PURPOSE: To evaluate the efficacy of intravitreal ranibizumab in the treatment of myopic choroidal neovascularization (mCNV) complicated by vitreoretinal interface alterations. METHODS: Thirty-two patients affected by mCNV and concurrent vitreoretinal interface disorders, including macular epiretinal membrane (18 patients), lamellar macular hole (4 patients), full-thickness macular hole (1 patient), broad/focal vitreomacular traction (3 patients), broad/focal vitreomacular adhesion (4 patients), and myopic foveoschisis (2 patients), were enrolled in a prospective study...
January 16, 2017: Retina
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