Results 251 to 260 of about 64,303 (289)
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Lamprey ganglion cells contact photoreceptor cells

Neuroscience Letters, 1998
Lamprey retinal ganglion cells are localized in two separate layers: those close to the vitreous and those at the junction between the inner nuclear and inner plexiform layers, including some others in the inner nuclear layer, close to the photoreceptor cell layer.
J P, Rio   +4 more
openaire   +2 more sources

Photoreceptor cells in the Xenopus retina

Microscopy Research and Technique, 2000
This review summarizes our present state of knowledge about spectrally different photoreceptor cell types in the Xenopus retina. The classification of the photoreceptors was based on morphology, combined with immunolabelling with various anti-visual pigment antibodies and other molecular probes on semithin sections and retinal wholemounts. The majority
Röhlich Pál, Szél Ágoston
openaire   +2 more sources

Inflammation-Induced Photoreceptor Cell Death

2018
Neuroinflammation is an important aspect of many diseases of the eye, and experimental animal models have been widely used to determine its impact on retinal homeostasis and neuron survival. Physical separation of the neurosensory retina from the underlying retinal pigment epithelium (RPE) results in activation and infiltration of macrophages. Numerous
Abdoulaye, Sene, Rajendra S, Apte
openaire   +2 more sources

Vertebrate photoreceptor cell development and disease

Trends in Cell Biology, 1998
Photoreceptors provide an excellent model for studies of vertebrate neuronal differentiation, and many human diseases resulting in blindness primarily affect photoreceptors. There is therefore great interest in studying the cellular and molecular mechanisms of photoreceptor development.
E M, Morrow, T, Furukawa, C L, Cepko
openaire   +2 more sources

The Photoreceptor Cells

1984
Insect photoreceptor cells are usually slender, cylindrical, and aggregated into various species-specific combinations beneath the corneal lens of a compound eye, ocellus, or larval stemmata. Individual cells are so sensitive to light that some are able to signal catches of a single photon (e.g., Lillywhite, 1977). This exquisite sensitivity is founded
Stanley D. Carlson   +2 more
openaire   +1 more source

Photoreceptor cells and eyes in Annelida

Arthropod Structure & Development, 2006
The evolution of photoreceptor cells and eyes in Metazoa is far from being resolved, although recent developmental and morphological studies provided strong evidence for a common origin of photoreceptor cells and existence of sister cell types in early metazoans.
Günter, Purschke   +3 more
openaire   +2 more sources

Presynaptic tubular structures in photoreceptor cells

Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1971
After the application of fixatives including phosphotungstic acid or a mixture of osmium tetroxide and zinc iodide, complex tubular structures are evident in the presynaptic side of the synapses between photoreceptor and bipolar cells of the rat's retina. In the first case only the limiting membranes are visualized, while in the second only the content
A P, De Iraldi, A M, Suburo
openaire   +2 more sources

Ca2+ Signaling in Drosophila Photoreceptor Cells

2019
In Drosophila photoreceptor cells, Ca2+ exerts regulatory functions that control the shape, duration, and amplitude of the light response. Ca2+ also orchestrates light adaptation allowing Drosophila to see in light intensity regimes that span several orders of magnitude ranging from single photons to bright sunlight. The prime source for Ca2+ elevation
Olaf, Voolstra, Armin, Huber
openaire   +2 more sources

Peroxynitrite-induced apoptosis in photoreceptor cells

Current Eye Research, 2004
To study the mechanisms of peroxynitrite-induced photoreceptor cell damage, using retinal cultures and a peroxynitrite donor, 3-morpholinosydnonimine (SIN-1).Retinal explants obtained from 20-day-old Lewis rat pups, were exposed to SIN-1 for varying lengths of time at varying concentrations.
Shinji, Ito   +5 more
openaire   +2 more sources

Fluorescence of Photoreceptor Cells Observed in Vivo

Science, 1981
Most rhabdomeres in the eye of the fly ( Musca domestica ) are fluorescent. One kind of fluorescent emission emanates from a photoproduct of the visual pigment, other kinds may be ascribed to photostable pigments. These phenomena provide not only a means of spectrally mapping the retina but also a new spectroscopic ...
Franceschini, N.   +2 more
openaire   +3 more sources

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