Results 101 to 110 of about 12,437 (221)

A Biomimetic Model of the Outer Plexiform Layer by Incorporating Memristive Devices

, 2011
In this paper we present a biorealistic model for the first part of the early vision processing by incorporating memristive nanodevices. The architecture of the proposed network is based on the organisation and functioning of the outer plexiform layer ...
Christofer Toumazou, Roska, Tamas, Gelencser, Andras, Themistoklis Prodromakis, Tamas Roska, Prodromakis, Themistoklis, Andras Gelencser, Toumazou, Christofer   +7 more
core  

Generation and characterization of rat and mouse monoclonal antibodies specific for MeCP2 and their use in X-inactivation studies [PDF]

, 2011
Methyl CpG binding protein 2 (MeCP2) binds DNA, and has a preference for methylated CpGs and, hence, in cells, it accumulates in heterochromatin. Even though it is expressed ubiquitously MeCP2 is particularly important during neuronal maturation. This is
Rottach Andrea, Jost, K.L., Becker, Annette, Andrea Rottach, Leonhardt, Heinrich, Becker, A., Manel Esteller, Esteller, Manel, K Laurence Jost, Wolf, P., Jost K. Laurence, Wolf, Patricia, Cardoso, M. Cristina, Leonhardt Heinrich, Paolo Petazzi, Huertas Dori, Annette Becker, Cardoso M. Cristina, Patricia Wolf, Milden Manuela, Wolf Patricia, Esteller Manel, K. Laurence Jost, Bertulat Bianca, Dori Huertas, Milden, M., Huertas, D., Juan Sandoval, Bianca Bertulat, Sandoval, Juan, M. Cristina Cardoso, Bertulat, B., Kremmer Elisabeth, Petazzi Paolo, Milden, Manuela, Huertas, Dori, Becker Annette, Rottach, A., Jost, K. Laurence, Sandoval, J., Esteller, M., Kremmer, E., Manuela Milden, Kremmer, Elisabeth, Cardoso, M.C., Heinrich Leonhardt, Sandoval Juan, Petazzi, Paolo, Petazzi, P., M Cristina Cardoso, Bertulat, Bianca, Rottach, Andrea, Elisabeth Kremmer, Leonhardt, H.   +53 more
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Müller cells are living optical fibers in the vertebrate retina

, 2007
Although biological cells are mostly transparent, they are phase objects that differ in shape and refractive index. Any image that is projected through layers of randomly oriented cells will normally be distorted by refraction, reflection, and scattering.
Skatchkov, S., Uckermann, O., Uckermann, Ortrud, Guck, Jochen, Schlid, D., Foja, C., Travis, K., Grosche, J., Schinkinger, S., Schlid, Detlev, Travis, Kort, Schinkinger, Stefan, Reichenbach, A., Guck, J., Franze, K., Foja, Christian, Franze, Kristian, Grosche, Jens, Skatchkov, Serguei N., Reichenbach, Andreas   +19 more
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Evolution of vertebrate retinal photoreception [PDF]

, 2016
Recent findings shed light on the steps underlying the evolution of vertebrate photoreceptors and retina. Vertebrate ciliary photoreceptors are not as wholly distinct from invertebrate rhabdomeric photoreceptors as is sometimes thought.
Lamb, Trevor
core   +1 more source

Transcriptomic determinants of vertebrate photoreceptors and other sensory cells

, 2023
The nervous system comprises an immense number of cells that serve highly specialized roles. Accordingly, they possess unique morphological and functional attributes, greatly shaped by specific Alternative Splicing (AS) and Gene Expression (GE) mechanisms. Retinal photoreceptors have a distinct transcriptomic profile compared to other neuronal subtypes,
openaire   +1 more source

Interphotoreceptor matrix domains ensheath vertebrate cone photoreceptor cells.

Investigative ophthalmology & visual science, 1986
The retinal interphotoreceptor matrix (IPM) occupies the space between the neural retina and the retinal pigmented epithelium (RPE), two neuroectoderm-derived epithelia. While the IPM appears to be a major route by which photoreceptor cells receive vital metabolic factors, relatively little is known concerning its structure and function.
L V, Johnson, G S, Hageman, J C, Blanks
openaire   +1 more source

Photoreceptor Evolution: Ancient Siblings Serve Different Tasks

, 2005
Photoreceptor cells of vertebrate eyes are fundamentally different from those of invertebrate eyes. New work on the brain of a ragworm now suggests that ancestral bilaterians possessed both types of photoreceptor ...
Nilsson, D.-E., Nilsson, Dan-E
core   +1 more source

Co-ordinating retinal histogenesis: early cell cycle exit enhances early cell fate determination in the Xenopus retina

, 2002
The laminar arrays of distinct cell types in the vertebrate retina are built by a histogenic process in which cell fate is correlated with birth order.
Philpott, A., Wang, K.C., Ohnuma, S.-I., Hopper, S., Harris, W.A.   +4 more
core  

Functional analysis of A 5' untranslated variant in rhodopsin : implications for the retinitis pigmentosa phenotype

, 2011
Retinitis Pigmentosa (RP) is a group of heterogeneous retinal degenerative diseases that predominantly affect rod photoreceptor cells. Symptoms include night blindness and gradual peripheral vision loss, which progresses to a complete loss of vision ...
Akinyi, Maureen Veronica
core  

Calcium-sensor proteins but not bicarbonate ion activate retinal photoreceptor membrane guanylyl cyclase in photoreceptors

Frontiers in Molecular Neuroscience
Retinal membrane guanylyl cyclase (RetGC), regulated by guanylyl cyclase activating proteins (GCAPs) via negative calcium-feedback, is one of the most critically important enzymes in vertebrate rod and cone physiology, enabling their sensitivity to light.
Igor V. Peshenko, Elena V. Olshevskaya, Alexander M. Dizhoor, Alexander M. Dizhoor   +3 more
doaj   +1 more source