Results 31 to 40 of about 3,008,306 (295)

Phenylephrine Affects Peripapillary Retinal Vasculature—an Optic Coherence Tomography Angiography Study

Frontiers in Physiology, 2017
Purpose: To evaluate and compare the effect of topical mydriatic eye drops (0.5% tropicamide alone, and a 0.5% tropicamide/0.5% phenylephrine mixture) on the retinal perfusion using optic coherence tomography angiography (OCTA).Methods: The perfused ...
Jingyi Cheng, Jingyi Cheng, Jingyi Cheng, Jian Yu, Jian Yu, Jian Yu, Chunhui Jiang, Chunhui Jiang, Chunhui Jiang, Xinghuai Sun, Xinghuai Sun, Xinghuai Sun   +11 more
doaj   +1 more source

Early vessel destabilization mediated by Angiopoietin-2 and subsequent vessel maturation via Angiopoietin-1 induce functional neovasculature after ischemia. [PDF]

, 2013
We assessed whether Angiopoietin-2 (Ang2), a Tie2 ligand and partial antagonist of Angiopoietin-1 (Ang1), is required for early vessel destabilization during postischemic angiogenesis, when combined with vascular growth factors.
Di Qin (107446), Seungmin Lee (68256), Qin, Di, Christian Kupatt (402864), Rabea Hinkel, Trenkwalder, Teresa, Rabea Hinkel (402865), Deindl, Elisabeth, Chillo, Omary, Teresa Trenkwalder (402861), Seungmin Lee, Christian Kupatt, Omary Chillo, Lee, Seungmin, Omary Chillo (402862), Kupatt, Christian, Elisabeth Deindl (402863), Di Qin, Hinkel, Rabea, Teresa Trenkwalder, Elisabeth Deindl   +20 more
core   +2 more sources

Higher Vessel Densities in Retinoblastoma with Local Invasive Growth and Metastasis [PDF]

The American Journal of Pathology, 2004
In this study, the importance of angiogenesis (the growth of new blood vessels from existing ones) for the growth of retinoblastoma was investigated by a retrospective immunohistochemical analysis. An individual vessel index for each tumor was determined using the endothelial-specific antibody CD 31 for vessel staining.
Rößler, Jochen, Dietrich, Torsten, Pavlakovic, Helena, Schweigerer, Lothar, Havers, Werner, Schüler, Andreas, Bornfeld, Norbert, Schilling, Harald   +7 more
openaire   +3 more sources

Repeatability, interocular correlation and agreement of optic nerve head vessel density in healthy eyes: a swept-source optical coherence tomographic angiography study [PDF]

International Journal of Ophthalmology
AIM: To assess the repeatability, interocular correlation, and agreement of quantitative swept-source optical coherence tomography angiography (OCTA) optic nerve head (ONH) parameters in healthy subjects.
Dan-Qi Fang, Da-Wei Yang, Xiao-Ting Mai, Carol Y Cheung, Hao-Yu Chen   +4 more
doaj   +1 more source

A comparison of the diagnostic ability of vessel density and structural measurements of optical coherence tomography in primary open angle glaucoma. [PDF]

PLoS ONE, 2017
PURPOSE:To compare the diagnostic abilities of vessel density measurements of the optic nerve head (ONH), peripapillary and macular regions on optical coherence tomography (OCT) angiography in eyes with primary open angle glaucoma (POAG) with that of the
Harsha L Rao, Zia S Pradhan, Robert N Weinreb, Mohammed Riyazuddin, Srilakshmi Dasari, Jayasree P Venugopal, Narendra K Puttaiah, Dhanaraj A S Rao, Sathi Devi, Kaweh Mansouri, Carroll A B Webers   +10 more
doaj   +1 more source

Italian Multicenter Study on Low-Density Lipoprotein Apheresis Working Group 2009 Survey

, 2013
We present results of the second survey of the Italian Multicenter Study on Low-Density Lipoprotein Apheresis (IMSLDLa-WG/2). The study involved 18 centers in 2009, treating 66 males and 35 females, mean age 47 +/- 18 years.
MOROZZI, CLAUDIA, STEFANUTTI, Claudia, DI GIACOMO, SERAFINA, The Italian Multicenter Study O. N. Low Density Lipoprotein Apheresis Working Group   +3 more
core   +1 more source

Vessel noise affects beaked whale behavior : results of a dedicated acoustic response study [PDF]

, 2012
© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS ONE 7 (2012): e42535, doi:10.1371/journal.pone.0042535.Some beaked whale species are ...
Quick, Nicola, Di Marzio Nancy, Boyd, Ian L., Moretti David, Quick, Nicola Jane, Pirotta, Enrico, Peter Tyack, Moretti, David, Tyack, Peter L., Pirotta Enrico, DiMarzio, Nancy A., Enrico Pirotta, David Moretti, Tyack Peter, Milor, Rachel, Nancy Di Marzio, Boyd Ian, Milor Rachael, Quick Nicola, Nicola Quick, Hastie, Gordon, Ian Boyd, Tyack, Peter Lloyd, Boyd, Ian, Hastie Gordon, Milor, Rachael, Rachael Milor, Hastie, Gordon Drummond, Moretti, David J., Dimarzio, Nancy, Gordon Hastie   +30 more
core   +1 more source

Automated vessel density detection in fluorescein angiography images correlates with vision in proliferative diabetic retinopathy

PLoS ONE, 2020
Purpose To investigate the correlation between quantifiable vessel density, computed in an automated fashion, from ultra-widefield fluorescein angiography (UWFFA) images from patients with proliferative diabetic retinopathy (PDR) with visual acuity and ...
Mohammad H. Bawany, Li Ding, Rajeev S. Ramchandran, Gaurav Sharma, Charles C. Wykoff, Ajay E. Kuriyan, Alfred S Lewin   +6 more
doaj   +2 more sources

Early neurovascular changes in the retina in preclinical diabetic retinopathy and its relation with blood glucose

BMC Ophthalmology, 2021
Background To investigate the changes in retinal nerve fiber layer thickness and macular blood flow density during the preclinical stage of diabetic retinopathy and their relationship with blood glucose. Methods In this cross-sectional study, 97 diabetic
Hui Li, Xiaobing Yu, Bodi Zheng, Shan Ding, Zhongqing Mu, Lixin Guo   +5 more
doaj   +1 more source

Quantitative assessment of retinal thickness and vessel density using optical coherence tomography angiography in patients with Alzheimer's disease and glaucoma.

PLoS ONE, 2021
PurposeAssessment and a direct comparison of retinal vessel density with the thickness of inner retinal layer (IRL) and outer retinal layer (ORL) in the same regions of the macula in subjects with Alzheimer's disease (AD) and primary open-angle glaucoma (
Przemyslaw Zabel, Jakub J Kaluzny, Katarzyna Zabel, Martyna Kaluzna, Aleksander Lamkowski, Damian Jaworski, Jaroslaw Makowski, Martyna Gebska-Toloczko, Robert Kucharski   +8 more
doaj   +1 more source