CLINICAL CASE We report a case of a 42 year-old male with a macular edema due to idiopathic juxtafoveal retinal telangiectasis type i, treated with 3 sequential injections of intravitreal bevacizumab (1.25 mg in 0.05 ml). Anatomical improvements were observed after one year of follow up. DISCUSSION There is currently no general consensus regarding the treatment of unilateral idiopathic juxtaf...

PURPOSE Retinal vascular dysfunction caused by vascular endothelial growth factor (VEGF) is the major pathological change that occurs in diabetic retinopathy (DR). It has recently been demonstrated that G protein-coupled receptor 91 (GPR91) plays a major role in both vasculature development and retinal angiogenesis. In this study, we examined the signaling pathways involved in GPR91-dependent V...

Purpose To report regression of neovascularization and reperfusion of ischemic areas of the retina on Wide-field Digital Fluorescein Angiography following anti-vascular endothelial growth factor injections in a patient with active Proliferative Diabetic Retinopathy. Observations Case report of sixty-one-year-old male patient with proliferative diabetic retinopathy and diabetic macular edema d...

PURPOSE Retinal neovascularization occurs under the influence of angiogenic factors like vascular endothelial growth factor (VEGF). VEGF signaling is enhanced by insulin-like growth factor-1 (IGF-1). In vitro, the oxoindolinone MAE 87 inhibits angiogenic signal transduction by blocking tyrosine kinase receptors including VEGF receptor 2 (VEGFR-2), IGF-1R, fibroblast GF-1R and epidermal GFR. We ...

PURPOSE Endoglin, an endothelial cell membrane receptor expressed on angiogenic tumor vessels, is essential for angiogenesis and upregulated in the setting of VEGF inhibition. TRC105 is an anti-endoglin IgG1 monoclonal antibody that potentiates VEGF inhibitors in preclinical models. This study assessed safety, pharmacokinetics, and antitumor activity of TRC105 in combination with bevacizumab. ...

BACKGROUND While the development of targeted molecular therapy to inhibit vascular endothelial growth factor (VEGF) has revolutionized the treatment and visual prognosis of highly prevalent retinal diseases such as diabetic retinopathy and age-related macular degeneration, each intravitreal injection of these agents carries a small risk of endophthalmitis which can be visually devastating. In t...

In the last few years, monoclonal antibodies have revolutionized the treatment of retinal neovascular diseases. More recently, a different class of drugs, fusion proteins, has provided an alternative treatment strategy with pharmacological differences. In addition to commercially available aflibercept, two other drugs, ziv-aflibercept and conbercept, have been studied in antiangiogenic treatmen...

Purpose To study vitreoretinal interface (VRI) abnormalities in diabetic macular edema (DME) and the influence of these on the effectiveness of intravitreal anti-vascular endothelial growth factor (VEGF) therapy. Methods VRI status and central retinal thickness (CRT) were evaluated using line and 3D-reference scans obtained using spectral domain-optical coherence tomography RTVue-100 before a...

BACKGROUND Photodynamic therapy (PDT) is considered a selective method of treatment which works in areas of choroidal neovascularization (CNV); however, there are reports of choroidal hypoperfusion after PDT. This paper presents a clinical case of choroidal circulation disturbances caused by PDT, accompanied by CNV progression. CASE REPORT The patient, a 75-year-old woman, was qualified for P...

AIMS To determine the level of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) in the plasma of patients with proliferative diabetic retinopathy before and after an intravitreal injection of bevacizumab. METHODS Eleven patients with type 2 diabetes and control of 30 non-diabetic patients were studied. The 11 eyes of 11 patients received an injection of b...