Results 71 to 80 of about 68,022 (253)

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source

A Nonlinear Model of Spatiotemporal Retinal Processing: Simulations of X and Y Retinal Ganglion Cell Behavior [PDF]

, 1993
This article describes a nonlinear model of neural processing in the vertebrate retina, comprising model photoreceptors, model push-pull bipolar cells, and model ganglion cells.
Gaudiano, Paolo
core   +1 more source

Large-scale multielectrode recording and stimulation of neural activity [PDF]

, 2007
Large circuits of neurons are employed by the brain to encode and process information. How this encoding and processing is carried out is one of the central questions in neuroscience.
Chichilnisky, E. J., Dabrowski, W., Grillo, A. A., Grivich, M., Gunning, D., Hottowy, P., Kachiguine, S., Litke, A. M., Mathieson, K., Petrusca, D., Sher, A.   +10 more
core   +1 more source

Retinal ganglion cell/inner plexiform layer thickness in patients with Parkinson’s disease

Folia Neuropathologica, 2017
Introduction: The aim of the paper was to analyze the changes in the macular ganglion cell layer and inner plexiform layer (GCL-IPL) thickness in patients with Parkinson's disease. Material and methods: The study enrolled 46 patients with established diagnosis of Parkinson's disease and 46 healthy subjects. Both groups were age- and gender-matched. An
Zivkovic M., Dayanir V., Stamenovic J., Ljubisavljević, Snežana, Prazić A., Zlatanović M., Zlatanovic G., Jaksic V., Radenkovic M., Jovanovic, Svetlana   +9 more
openaire   +4 more sources

Hierarchical Summary Statistics Encoding Across Primary Visual and Posterior Parietal Cortices

Advanced Science, EarlyView.
This study shows that mouse V1 simultaneously encodes the ensemble mean and variance of motion, providing a robust summary‐statistic representation that persists despite single‐neuron variability. These signals propagate to PPC, where they are transformed into abstract category representations during decision making.
Young‐Beom Lee, Oliver James, Gaeun Jung, Doyun Lee, Yee‐Joon Kim   +4 more
wiley   +1 more source

Early inner plexiform layer thinning and retinal nerve fiber layer thickening in excitotoxic retinal injury using deep learning-assisted optical coherence tomography

Acta Neuropathologica Communications
Excitotoxicity from the impairment of glutamate uptake constitutes an important mechanism in neurodegenerative diseases such as Alzheimer’s, multiple sclerosis, and Parkinson's disease. Within the eye, excitotoxicity is thought to play a critical role in
Da Ma, Wenyu Deng, Zain Khera, Thajunnisa A. Sajitha, Xinlei Wang, Gadi Wollstein, Joel S. Schuman, Sieun Lee, Haolun Shi, Myeong Jin Ju, Joanne Matsubara, Mirza Faisal Beg, Marinko Sarunic, Rebecca M. Sappington, Kevin C. Chan   +14 more
doaj   +1 more source

P66Shc expression in diabetic rat retina

BMC Ophthalmology, 2018
Background P66Shc is partially localised within the mitochondrial fraction. It is primarily related to the generation of mitochondrial reactive oxygen species and apoptosis.
Ming-Hui Zhao, Jianyan Hu, Shufeng Li, Qiang Wu, Peirong Lu   +4 more
doaj   +1 more source

Permissive role for mGlu1 metabotropic glutamate receptors in excitotoxic retinal degeneration [PDF]

, 2017
Neuroprotection is an unmet need in eye disorders characterized by retinal ganglion cell (RGC) death, such as prematurity-induced retinal degeneration, glaucoma, and age-related macular degeneration.
Battaglia, Giuseppe, Beneventano, Martina, Bruno, Valeria, Bucci, Domenico, Di Pietro, Paola, Liberatore, Francesca, Madonna, Michele, Mascio, Giada, Nicoletti, Ferdinando, Puliti, Alda Maria, Romano, Maria Rosaria   +10 more
core   +1 more source

Cis‐ and Trans‐Regulatory Factors Independently Shape Phenotypic Heterogeneity of Retinitis Pigmentosa

Advanced Science, EarlyView.
A zebrafish model carrying an identical human RHO S334X allele reveals two independent genetic layers shaping retinitis pigmentosa (RP) severity: a protective 3‐bp cis‐regulatory insertion that attenuates transgene expression, and a dominant trans‐acting modifier that restores a severe phenotype.
Cong Cui, Kotone Nakagawa, Takumi Tateno, Ayaka Dan, Dexin Meng, Yoshihiro Omori, Soma Tomihara, Suzuri Okamoto, Shigeru Sato, Motokazu Tsujikawa   +9 more
wiley   +1 more source

Damaging effect of ischemia on the development of retinal organoids derived from human embryonic stem cells [PDF]

International Journal of Ophthalmology
AIM: To explore the changes in early retinal development after the occurrence of ischemia. METHODS: Human retinal organoids (hROs) of day 18 or day 30 were treated with oxygen-glucose deprivation and reperfusion (OGD/R) to simulate the retinal ischemia ...
Yu-Han Yan, Hong-Yu Li, Li-Xiong Gao, Wen Li, Ling-Ping Zhao, Quan Zeng, Yu Luo, Tian-Tian Cui, Ru-Ge Zang, Zi Ye, Jia-Fei Xi, Wen Yue, Zhao-Hui Li   +12 more
doaj   +1 more source