نتایج جستجو برای: neovascularization

تعداد نتایج: 11455  

2012
Sandeep Saxena Neha Sinha

Neovascularization is defined as formation of new vessels from vascular endothelial cells derived from existing blood vessels. These new immature vessels are friable. They have increased permeability, lack structural integrity, and can result in lipid deposition and corneal opacities. Ultrastructurally, corneal neovascularization is characterized by vessels encroaching through separated stromal...

2015
OB Voiculescu LM Voinea

Corneal neovascularization is a serious condition that may arise secondary to chemical burns, ischemia, infection, trauma, and inflammation and represents a major cause of blindness. This study investigated the efficacy of topical application of infliximab [tumor necrosis factor-a (TNF-a) monoclonal antibody] in the treatment of corneal neovascularization in the rabbit model.

2015
Jonathan Naysan Kunal K Dansingani Chandrakumar Balaratnasingam K Bailey Freund

Dome-shaped macula is described as an inward bulge of the macula within a posterior staphyloma in highly myopic eyes. Choroidal neovascularization is a known complication that can cause visual loss in dome-shaped macula. Herein, we describe a patient who presented with features of polypoidal choroidal neovascularization that developed on a background of high myopia with dome-shaped macula.

Journal: :Arquivos brasileiros de oftalmologia 2008
Ricardo Miguel Japiassú Maria Augusta Castro Farias Japiassú Mariana Gomes Pecego

Angioid streaks are commonly related to Grönblad-Strandberg syndrome, that often shows dermatological characteristics, such as pseudoxanthoma elasticum. Choroidal neovascularization is uncommon, often occurring after ocular trauma. This is a case report of the successful use of intravitreal bevacizumab for the treatment of choroidal neovascularization secondary to Grönblad-Strandberg syndrome.

Journal: :Investigative ophthalmology & visual science 1999
Y Takehana T Kurokawa T Kitamura Y Tsukahara S Akahane M Kitazawa N Yoshimura

PURPOSE To determine whether tranilast administered to pigmented rats inhibits formation of choroidal neovascularization induced by diode-laser photocoagulation. METHODS Female Brown Norway rats were used. On day 0, choroidal neovascularization was induced by diode-laser photocoagulation, using a setting of 75 microm spot size, 0.1 second's duration, and 100 mW intensity. Tranilast (200 or 60...

Journal: :European journal of ophthalmology 2005
M H Dehghan H Ahmadieh M Soheilian M Azarmina A Mashayekhi J Naghibozakerin

PURPOSE To determine visual outcomes and regression of retinal neovascularization following laser photocoagulation and/or vitrectomy in eyes with Eales' disease. METHODS In a retrospective noncomparative study, the authors reviewed the existing data of 67 eyes of 54 patients with a diagnosis of Eales' disease who had undergone laser photocoagulation and/or vitrectomy based on their clinical p...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Ye Sun Chi-Hsiu Liu John Paul SanGiovanni Lucy P Evans Katherine T Tian Bing Zhang Andreas Stahl William T Pu Theodore M Kamenecka Laura A Solt Jing Chen

Pathologic ocular angiogenesis is a leading cause of blindness, influenced by both dysregulated lipid metabolism and inflammation. Retinoic-acid-receptor-related orphan receptor alpha (RORα) is a lipid-sensing nuclear receptor with diverse biologic function including regulation of lipid metabolism and inflammation; however, its role in pathologic retinal angiogenesis remains poorly understood. ...

Journal: :Investigative ophthalmology & visual science 2002
Nahoko Ogata Mitsumasa Wada Tsuyoshi Otsuji Nobuo Jo Joyce Tombran-Tink Miyo Matsumura

PURPOSE Pigment epithelium-derived factor (PEDF) is a protein produced by the retinal pigment epithelial (RPE) cells. Recent studies have implicated PEDF in activities that are inhibitory to angiogenesis. In this study, the expression of PEDF was investigated in normal rat eyes and in eyes with experimentally induced choroidal neovascularization and compared with the expression of vascular endo...

2017
Yun Zhang Ting Zhang Xiaoyun Ma and Jun Zou

Corneal neovascularization may result in loss of corneal transparency and blindness. However, developing successful and inexpensive medical treatments for corneal neovascularization remains an unresolved issue. Recently, several studies have implicated miRNA functions in the regulation of cornea homeostasis. This study aimed to identify the miRNA expression profile in the neovascularized cornea...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Chi-Hsiu Liu Ye Sun Jie Li Yan Gong Katherine T Tian Lucy P Evans Peyton C Morss Thomas W Fredrick Nicholas J Saba Jing Chen

Pathologic ocular neovascularization commonly causes blindness. It is critical to identify the factors altered in pathologically proliferating versus normally quiescent vessels to develop effective targeted therapeutics. MicroRNAs regulate both physiological and pathological angiogenesis through modulating expression of gene targets at the posttranscriptional level. However, it is not completel...

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