Effects of Tauroursodeoxycholic Acid and Alpha-Lipoic-Acid on the Visual Response Properties of Cat Retinal Ganglion Cells: An In Vitro Study

2015 ◽  
Vol 56 (11) ◽  
pp. 6638 ◽  
Author(s):  
Huika Xia ◽  
Yan Nan ◽  
Xin Huang ◽  
Jie Gao ◽  
Mingliang Pu
2012 ◽  
Vol 526 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Bing Liu ◽  
Xiaohua Ma ◽  
Dadong Guo ◽  
Yuanyuan Guo ◽  
Ninghong Chen ◽  
...  

2020 ◽  
Vol 124 (2) ◽  
pp. 432-442
Author(s):  
Allison J. Murphy ◽  
J. Michael Hasse ◽  
Farran Briggs

Interest in visual system homologies across species has recently increased. Across species, retinas contain diverse retinal ganglion cells including cells with unusual visual response properties. It is unclear whether rare retinal ganglion cells in carnivores project to and drive similarly unique visual responses in the visual thalamus. We discovered a rare subpopulation of thalamic neurons defined by unique spike shape and visual response properties, suggesting that nonstandard visual computations are common to many species.


2021 ◽  
Vol 14 (1) ◽  
pp. 50
Author(s):  
Alicia Arranz-Romera ◽  
Maria Hernandez ◽  
Patricia Checa-Casalengua ◽  
Alfredo Garcia-Layana ◽  
Irene T. Molina-Martinez ◽  
...  

We assessed the sustained delivery effect of poly (lactic-co-glycolic) acid (PLGA)/vitamin E (VitE) microspheres (MSs) loaded with glial cell-derived neurotrophic factor (GDNF) alone (GDNF-MSs) or combined with brain-derived neurotrophic factor (BDNF; GDNF/BDNF-MSs) on migration of the human adult retinal pigment epithelial cell-line-19 (ARPE-19) cells, primate choroidal endothelial (RF/6A) cells, and the survival of isolated mouse retinal ganglion cells (RGCs). The morphology of the MSs, particle size, and encapsulation efficiencies of the active substances were evaluated. In vitro release, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell viability, terminal deoxynucleotidyl transferase (TdT) deoxyuridine dUTP nick-end labelling (TUNEL) apoptosis, functional wound healing migration (ARPE-19; migration), and (RF/6A; angiogenesis) assays were conducted. The safety of MS intravitreal injection was assessed using hematoxylin and eosin, neuronal nuclei (NeuN) immunolabeling, and TUNEL assays, and RGC in vitro survival was analyzed. MSs delivered GDNF and co-delivered GDNF/BDNF in a sustained manner over 77 days. The BDNF/GDNF combination increased RPE cell migration, whereas no effect was observed on RF/6A. MSs did not alter cell viability, apoptosis was absent in vitro, and RGCs survived in vitro for seven weeks. In mice, retinal toxicity and apoptosis was absent in histologic sections. This delivery strategy could be useful as a potential co-therapy in retinal degenerations and glaucoma, in line with future personalized long-term intravitreal treatment as different amounts (doses) of microparticles can be administered according to patients’ needs.


2012 ◽  
Vol 38 (1) ◽  
pp. 162-173 ◽  
Author(s):  
Leandro de Araujo-Martins ◽  
Raphael Monteiro de Oliveira ◽  
Gabriela Velozo Gomes dos Santos ◽  
Renata Cláudia Celestino dos Santos ◽  
Aline Araujo dos Santos ◽  
...  

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