Results 31 to 40 of about 12,437 (221)

Metabolism in the Zebrafish Retina

Journal of Developmental Biology, 2021
Retinal photoreceptors are amongst the most metabolically active cells in the body, consuming more glucose as a metabolic substrate than even the brain. This ensures that there is sufficient energy to establish and maintain photoreceptor functions during
Natalia Jaroszynska, Philippa Harding, Mariya Moosajee   +2 more
doaj   +1 more source

Novel rodent models for macular research [PDF]

, 2010
BACKGROUND: Many disabling human retinal disorders involve the central retina, particularly the macula. However, the commonly used rodent models in research, mouse and rat, do not possess a macula.
Gesine Huber, Muehlfriedel, Regine, Huber, G., Feng, Yuxi, Seeliger, M., Tanimoto, Naoyuki, Tanimoto Naoyuki, Severin Heynen, Hans-Peter Hammes, Christian Grimm, Feng, Y., Imsand Coni, Imsand, Coni, Muehlfriedel Regine, Susanne C. Beck, Huber, Gesine, Heynen, S., Grimm Christian, Regine Muehlfriedel, Huber Gesine, vom Hagen Franziska, Coni Imsand, Imsand, C., Seeliger Mathias W., Mühlfriedel, R., Peichl, Leo, Mathias W Seeliger, vom Hagen, F., Mühlfriedel, Regine, Tanimoto, N., Heynen Severin, Hammes, Hans-Peter, Seeliger, Mathias W, Beck Susanne C., Seeliger, Mathias W., Peichl Leo, Yuxi Feng, Peichl, L., Beck, Susanne C; https://orcid.org/, Grimm, C., Feng Yuxi, Mathias W. Seeliger, Leo Peichl, Franziska vom Hagen, Grimm, Christian, Grimm, Christian; https://orcid.org/, vom Hagen, Franziska, Beck, S., Beck, Susanne Christiane, Hammes Hans-Peter, Susanne C Beck, Naoyuki Tanimoto, Hammes, H., Heynen, Severin   +53 more
core   +1 more source

Targeting of Drosophila rhodopsin requires helix 8 but not the distal C-terminus. [PDF]

PLoS ONE, 2009
BACKGROUND:The fundamental role of the light receptor rhodopsin in visual function and photoreceptor cell development has been widely studied. Proper trafficking of rhodopsin to the photoreceptor membrane is of great importance.
Ines Kock, Natalia A Bulgakova, Elisabeth Knust, Irmgard Sinning, Valérie Panneels   +4 more
doaj   +1 more source

Different types of visual cells in the photoreceptor layer of the retinae of the treeshrew (Tupaia belangeri chinensis) as revealed by scanning microscopy

Folia Morphologica, 2023
BACKGROUND: The retinae of treeshrew have never been evaluated by scanning electron microscopic studies. MATERIALS AND METHODS: This work described the visual cells in the photoreceptor layer of the retinae of treeshrew (Tupaia belangeri chinensis ...
R.S.Y. Cheng, M.S.M. Wai, G.C.T. Leung, T.C.H. Chow, W.W. Sze-To, D.T. Yew   +5 more
doaj   +1 more source

Co-expression of xenopsin and rhabdomeric opsin in photoreceptors bearing microvilli and cilia

eLife, 2017
Ciliary and rhabdomeric opsins are employed by different kinds of photoreceptor cells, such as ciliary vertebrate rods and cones or protostome microvillar eye photoreceptors, that have specialized structures and molecular physiologies.
Oliver Vöcking, Ioannis Kourtesis, Sharat Chandra Tumu, Harald Hausen   +3 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

Nrl Is Dispensable for Specification of Rod Photoreceptors in Adult Zebrafish Despite Its Deeply Conserved Requirement Earlier in Ontogeny

iScience, 2020
Summary: The transcription factor NRL (neural retina leucine zipper) has been canonized as the master regulator of photoreceptor cell fate in the retina. NRL is necessary and sufficient to specify rod cell fate and to preclude cone cell fate in mice.
A. Phillip Oel, Gavin J. Neil, Emily M. Dong, Spencer D. Balay, Keon Collett, W. Ted Allison   +5 more
doaj   +1 more source

Kiss-and-Run Is a Significant Contributor to Synaptic Exocytosis and Endocytosis in Photoreceptors

Frontiers in Cellular Neuroscience, 2017
Accompanying sustained release in darkness, rod and cone photoreceptors exhibit rapid endocytosis of synaptic vesicles. Membrane capacitance measurements indicated that rapid endocytosis retrieves at least 70% of the exocytotic membrane increase.
Xiangyi Wen, Xiangyi Wen, Grant W. Saltzgaber, Wallace B. Thoreson, Wallace B. Thoreson   +4 more
doaj   +1 more source

Evolution of the calcium feedback steps of vertebrate phototransduction [PDF]

Open Biology, 2018
We examined the genes encoding the proteins that mediate the Ca-feedback regulatory system in vertebrate rod and cone phototransduction. These proteins comprise four families: recoverin/visinin, the guanylyl cyclase activating proteins (GCAPs), the ...
Trevor D. Lamb, David M. Hunt
doaj   +1 more source

Vision and retina evolution: How to develop a retina

IBRO Neuroscience Reports, 2022
Early in vertebrate evolution, a single homeobox (Hox) cluster in basal chordates was quadrupled to generate the Hox gene clusters present in extant vertebrates.
Bernd Fritzsch, Paul R. Martin
doaj   +1 more source