Results 41 to 50 of about 4,900,943 (176)

Amacrine cells differentially balance zebrafish color circuits in the central and peripheral retina

Cell Reports, 2023
Summary: The vertebrate inner retina is driven by photoreceptors whose outputs are already pre-processed; in zebrafish, outer retinal circuits split “color” from “grayscale” information across four cone-photoreceptor types.
Xinwei Wang, Paul A. Roberts, Takeshi Yoshimatsu, Leon Lagnado, Tom Baden   +4 more
doaj   +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, Dan-E, Nilsson, Dan-E,, Lund University.   +2 more
core   +1 more source

Iroquois complex genes induce co-expression of rhodopsins in Drosophila. [PDF]

, 2008
The Drosophila eye is a mosaic that results from the stochastic distribution of two ommatidial subtypes. Pale and yellow ommatidia can be distinguished by the expression of distinct rhodopsins and other pigments in their inner photoreceptors (R7 and R8),
Mathias F Wernet, Desplan, C, Pichaud, F, Daniel Vasiliauskas, Vasiliauskas Daniel, Pichaud Franck, Celik, A, Cook Tiffany A, Vasiliauskas, D, Cook, TA, Mazzoni Esteban O, Franck Pichaud, Johnston, RJ, Wernet Mathias F, Esteban O Mazzoni, Mazzoni, EO, Arzu Celik, Robert J Johnston, Tiffany A Cook, Johnston Robert J, Claude Desplan, Celik Arzu, Desplan Claude, Wernet, MF   +23 more
core   +1 more source

penner/lgl2 is required for the integrity of the photoreceptor layer in the zebrafish retina

Biology Open, 2019
The vertebrate retina is a complex tissue built from multiple neuronal cell types, which develop from a pseudostratified neuroepithelium. These cells are arranged into a highly organized and stereotypic pattern formed by nuclear and plexiform layers. The
Satu Kujawski, Mahendra Sonawane, Elisabeth Knust   +2 more
doaj   +1 more source

Unidirectional photoreceptor-to-Müller glia coupling and unique K+ channel expression in Caiman retina. [PDF]

PLoS ONE, 2014
Müller cells, the principal glial cells of the vertebrate retina, are fundamental for the maintenance and function of neuronal cells. In most vertebrates, including humans, Müller cells abundantly express Kir4.1 inwardly rectifying potassium channels ...
Astrid Zayas-Santiago, Silke Agte, Yomarie Rivera, Jan Benedikt, Elke Ulbricht, Anett Karl, José Dávila, Alexey Savvinov, Yuriy Kucheryavykh, Mikhail Inyushin, Luis A Cubano, Thomas Pannicke, Rüdiger W Veh, Mike Francke, Alexei Verkhratsky, Misty J Eaton, Andreas Reichenbach, Serguei N Skatchkov   +17 more
doaj   +1 more source

Cone photoreceptors transfer damaged mitochondria to Müller glia

Cell Reports, 2023
Summary: Mitochondria are vital organelles that require sophisticated homeostatic mechanisms for maintenance. Intercellular transfer of damaged mitochondria is a recently identified strategy broadly used to improve cellular health and viability. Here, we
Rachel A. Hutto, Kaitlyn M. Rutter, Michelle M. Giarmarco, Edward D. Parker, Zachary S. Chambers, Susan E. Brockerhoff   +5 more
doaj   +1 more source

Neurogliogenesis and visual system development in "Drosophila" : genetic/genomic analysis of the "Glial cells missing" and "Egghead" genes [PDF]

, 2005
Complex nervous systems are made up by two major cell types, neuronal and glial cell types. A general observation that has been made by lineage analysis of neurogliogenesis in vertebrates and invertebrates is that neurons and glia often share common ...
Fan, Yun
core   +1 more source

Distinct and conserved prominin-1/CD133-positive retinal cell populations identified across species.

PLoS ONE, 2011
Besides being a marker of various somatic stem cells in mammals, prominin-1 (CD133) plays a role in maintaining the photoreceptor integrity since mutations in the PROM1 gene are linked with retinal degeneration.
József Jászai, Christine A Fargeas, Sylvi Graupner, Elly M Tanaka, Michael Brand, Wieland B Huttner, Denis Corbeil   +6 more
doaj   +1 more source

The influence of circadian variables on ecotoxicology metabolomics

Biological Reviews, EarlyView.
ABSTRACT Ecotoxicologists are using metabolomics increasingly to gain insight into toxicological mechanisms and sublethal effects of chemical exposures. Metabolomics offers a sensitive multi‐parameter approach that can detect biochemical responses not obvious using apical and behavioural endpoints.
Ryan I. Lester, David J. Beale, Anthony R. Carroll, Steven D. Melvin   +3 more
wiley   +1 more source

REVIEW : Signal transduction mechanism in photoreceptor cells [PDF]

The molecular mechanism of the visual transduction pathway in vertebrate photoreceptor cells Vertebrate photoreceptor cells, rods and cones, are specially designed and differentiated neuroal cells for detecting light signals.
大黒, 浩
core   +1 more source