Results 61 to 70 of about 33,197 (253)

Regeneration of cone photoreceptors when cell ablation is primarily restricted to a particular cone subtype. [PDF]

open access: yesPLoS ONE, 2013
We sought to characterize the regenerated cells, if any, when photoreceptor ablation was mostly limited to a particular cone subtype. This allowed us to uniquely assess whether the remaining cells influence specification of regenerating photoreceptors ...
Brittany Fraser   +3 more
doaj   +1 more source

The Potential Role of Epigenetic Mechanisms in the Development of Retinitis Pigmentosa and Related Photoreceptor Dystrophies

open access: yesFrontiers in Genetics, 2022
Retinitis pigmentosa and related photoreceptor dystrophies (RPRPD) are rare retinal diseases caused by hereditary gene mutations resulting in photoreceptor death, followed by vision loss.
Galina Dvoriantchikova   +3 more
doaj   +1 more source

Docosahexaenoic acid promotes photoreceptor differentiation without altering Crx expression [PDF]

open access: yes, 2006
PURPOSE: The precise molecular cues required for photoreceptor development are still unknown. Pax6 and Crx are essential during early retinal development and for photoreceptor differentiation, respectively.
Garelli, Andres   +2 more
core   +2 more sources

A hybrid photoreceptor expressing both rod and cone genes in a mouse model of enhanced S-cone syndrome. [PDF]

open access: yesPLoS Genetics, 2005
Rod and cone photoreceptors subserve vision under dim and bright light conditions, respectively. The differences in their function are thought to stem from their different gene expression patterns, morphologies, and synaptic connectivities. In this study,
Joseph C Corbo, Constance L Cepko
doaj   +2 more sources

Role of microglial cells in photoreceptor degeneration

open access: yesNeural Regeneration Research, 2019
Inherited photoreceptor degeneration in humans constitutes a major cause of irreversible blindness in the world. They comprise various diseases, but retinitis pigmentosa is the most frequently observed. Retinitis pigmentosa is commonly limited to the eye,
Johnny Di Pierdomenico   +4 more
doaj   +1 more source

Sphingolipids as emerging mediators in retina degeneration [PDF]

open access: yes, 2019
The sphingolipids ceramide (Cer), sphingosine-1-phosphate (S1P), sphingosine (Sph), and ceramide-1-phosphate (C1P) are key signaling molecules that regulate major cellular functions.
Prado Spalm, Facundo Heber   +3 more
core   +1 more source

The deubiquitinase Otud7b suppresses cone photoreceptor degeneration in mouse models of retinal degenerative diseases

open access: yesiScience
Summary: Primary and secondary cone photoreceptor death in retinal degenerative diseases, including age-related macular degeneration (AMD) and retinitis pigmentosa (RP), leads to severe visual impairment and blindness.
Leah Rie Varner   +7 more
doaj   +1 more source

Melanopsin and Cone Photoreceptor Inputs to the Afferent Pupil Light Response

open access: yesFrontiers in Neurology, 2019
Background: Retinal photoreceptors provide the main stage in the mammalian eye for regulating the retinal illumination through changes in pupil diameter, with a small population of melanopsin-expressing intrinsically photosensitive retinal ganglion cells
Andrew J. Zele   +7 more
doaj   +1 more source

Potential role of Müller cells in the pathogenesis of macropsia associated with epiretinal membrane: a hypothesis revisited [PDF]

open access: yesInternational Journal of Ophthalmology, 2017
Pathophysiological explanations for metamorphopsia associated with retinal pathologies generally focus on photoreceptor organization disruption. However, the retinal microarchitecture is complicated, and we hypothesize that other retinal cells may also ...
Ahmet Colakoglu, Solmaz Balci Akar
doaj   +1 more source

Dysfunctional Light-Evoked Regulation of cAMP in Photoreceptors and Abnormal Retinal Adaptation in Mice Lacking Dopamine D4 Receptors [PDF]

open access: yes, 2002
Dopamine is a retinal neuromodulator that has been implicated in many aspects of retinal physiology. Photoreceptor cells express dopamine D4 receptors that regulate cAMP metabolism.
Grandy, David K.   +6 more
core   +1 more source

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