نتایج جستجو برای: retinal vascular necrosis

تعداد نتایج: 378478  

Afsoon Fazlinezhad Ali Azari, Leila Bigdelu Mojde Amini Toka Banaee,

   Introduction: Retinal vein occlusion  is a common vascular disorder disrupting vision. Two basic types of RVO are branch retinal vein occlusion and central retinal vein occlusion (CRVO).  Retinal vein occlusion is a multifactor process including systemic illness and local retinal factors.RVO may be associated with atherosclerotic risk factors. We analyzed the role of 2 dimensional transthor...

Journal: :acta medica iranica 0
m. r. manaviat m. r. shoja m. r. besharaty

recently multiple studies have shown that elevated homocysteine levels may be associated with ophthalmic vascular disease. to investigate the role of high plasma levels of homocysteine in the patients with retinal vein occlusion, 21 patients with retinal vein occlusion (rvo) and 20 age and sex matched controls without rvo were included in this retrospective case–control study. information regar...

Journal: :The British journal of ophthalmology 2000
M Cahill M Karabatzaki R Meleady H Refsum P Ueland D Shields D Mooney I Graham

BACKGROUND/AIMS A moderately elevated plasma concentration of the sulphur amino acid homocysteine is an independent risk factor for atherosclerotic vascular disease. Many of the risk factors associated with coronary, cerebral, and peripheral atherosclerotic vascular disease are common to retinal vascular occlusive disease but it is unclear whether elevated plasma concentrations of homocysteine ...

Journal: :European journal of ophthalmology 2005
S P Shah O H Hadid E M Graham M R Stanford

PURPOSE To report a case of acute retinal necrosis presenting as central retinal artery occlusion with cilioretinal sparing. METHODS Single interventional case report. The findings of the ophthalmic examination, MRI, blood parameters, biopsy results and clinical course are reported. RESULTS A forty two year old gentleman reporting sudden loss of sight, ophthalmic examination revealing uveit...

Journal: :Investigative ophthalmology & visual science 2009
Li-ping Yang Hui-li Sun Le-meng Wu Xiu-juan Guo Hong-liang Dou Mark O M Tso Lin Zhao Shun-min Li

PURPOSE This study was designed to elucidate the role of inflammatory process in diabetic retinopathy and to investigate the effect of baicalein treatment on diabetic rat. METHODS Retinal microglial cells were identified with CD11b antibody, and retinal Müller cells were identified with glial fibrillary acidic protein (GFAP). The gene expression of interleukin (IL)-18, tumor necrosis factor (...

Journal: :Investigative ophthalmology & visual science 2007
Maria-Elena Jockovich Fernando Suarez Armando Alegret Yolanda Piña Brandy Hayden Colleen Cebulla William Feuer Timothy G Murray

PURPOSE To evaluate the mechanism and timing of retinal tumor cell death in the LH(BETA)T(AG) mouse model of retinoblastoma after treatment with vascular targeting therapies and conventional therapies (focal chemotherapy and radiation). METHODS For vascular targeting therapy, 12- or 16-week-old mice were treated with a single subconjunctival injection of either anecortave acetate (300 microg)...

Journal: :world journal of plastic surgery 0
ali manafi department of plastic surgery, iran university of medical sciences, tehran, iran behrooz barikbin shohada tajrish hospital, laser application in medical sciences research center, tehran, iran amir manafi department of medicine, shahid beheshti university of medical sciences, tehran, iran zahra sadat hamedi department of medicine, shahid beheshti university of medical sciences, tehran, iran

injection of synthetic fillers for soft tissue augmentation is increasing over the last decade. one of the most common materials used is hyaluronic acid (ha) that is safe and temporary filler for soft tissue augmentation. we present a case of 54-year-old female who experienced vascular occlusion and nasal alar necrosis following ha injection to the nasolabial folds. she suffered from pain, necr...

پایان نامه :دانشگاه آزاد اسلامی واحد علوم پزشکی تهران - دانشکده پزشکی 1390

هدف: در این مطالعه به بررسی الکترورتینوگرام در افراد مبتلا به retinal hemorrhage در کلینیک قدس طی بهمن 88 الی بهمن 89 پرداختیم. روش مطالعه: این مطالعه به صورت یک بررسی مشاهده ای (observational) توصیفی - تحلیلی (descriptive-analytical) مقطعی (cross-sectional) انجام شده است. حجم نمونه مورد بررسی در این مطالعه شامل دو گروه 25 نفری بود که یک گروه مبتلا به retinal hemorrhage بودند؛ ولی یک گروه نه ت...

2011
Madalina Opreanu Maria Tikhonenko Svetlana Bozack Todd A. Lydic Gavin E. Reid Kelly M. McSorley Andrew Sochacki Gloria I. Perez Walter J. Esselman Timothy Kern Richard Kolesnick Maria B. Grant Julia V. Busik

OBJECTIVE Acid sphingomyelinase (ASM) is an important early responder in inflammatory cytokine signaling. The role of ASM in retinal vascular inflammation and vessel loss associated with diabetic retinopathy is not known and represents the goal of this study. RESEARCH DESIGN AND METHODS Protein and gene expression profiles were determined by quantitative RT-PCR and Western blot. ASM activity ...

Mehrnoosh Hashemi, Zahra Ghorbanifar,

Stem cells are undifferentiated cells that have the ability to convert to different types of cells and after dividing, they can produce their own cells or other cells. Axons of the retinal ganglion cells, from the optic nerve. These cells lose the ability to regenerate themselves before birth. Optic nerve degeneration can result from various causes including increased intraocular pressure, comp...

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