Results 111 to 120 of about 11,542 (237)

Long Days Enhance Recognition Memory and Increase Insulin-like Growth Factor 2 in the Hippocampus [PDF]

, 2017
Light improves cognitive function in humans; however, the neurobiological mechanisms underlying positive effects of light remain unclear. One obstacle is that most rodent models have employed lighting conditions that cause cognitive deficits rather than ...
Baker, Kimberly, Callif, Ben L., Dellapolla, Adriano, Evans, Jennifer A., Gilmartin, Marieke R., Hattar, Samer, Hurley, Matthew M., Kloehn, Ian, Pancholi, Harshida, Rohr, Kayla, Wertz, David   +10 more
core   +1 more source

Molecular Aspects of Eye Evolution and Development: From the Origin of Retinal Cells to the Future of Regenerative Medicine [PDF]

, 2013
A central issue of evolutionary developmental biology is how the eye is diverged morphologically and functionally. However, the unifying mechanisms or schemes that govern eye diversification remain unsolved.
Ohuchi, Hideyo
core   +1 more source

Light during darkness and cancer: relationships in circadian photoreception and tumor biology [PDF]

, 2006
The relationship between circadian phototransduction and circadian-regulated processes is poorly understood. Melatonin, commonly a circadian phase marker, may play a direct role in a myriad of physiologic processes.
Blask, David E., Brainard, George C., Jasser, Samar A.   +2 more
core   +2 more sources

Melanopsin-Driven Pupil Response and Light Exposure in Non-seasonal Major Depressive Disorder

Frontiers in Neurology, 2018
Background: Melanopsin-expressing intrinsically photosensitive Retinal Ganglion Cells (ipRGCs) signal non-imaging forming effects of environmental light for circadian phoentrainment, the pupil light reflex, and mood regulation.
Beatrix Feigl, Beatrix Feigl, Beatrix Feigl, Govinda Ojha, Govinda Ojha, Leanne Hides, Andrew J. Zele, Andrew J. Zele   +7 more
doaj   +1 more source

Light adaptation of melanopsin photoreception and its interaction with cone signalling [PDF]

, 2021
Mukund Pant
openalex   +1 more source

In-silico predicted mouse melanopsins with blue spectral shifts deliver efficient subcellular signaling

Cell Communication and Signaling
Melanopsin is a photopigment belonging to the G Protein-Coupled Receptor (GPCR) family expressed in a subset of intrinsically photosensitive retinal ganglion cells (ipRGCs) and responsible for a variety of processes.
Dhanushan Wijayaratna, Filippo Sacchetta, Laura Pedraza-González, Francesca Fanelli, Tomohiro Sugihara, Mitsumasa Koyanagi, Senuri Piyawardana, Kiran Ghotra, Waruna Thotamune, Akihisa Terakita, Massimo Olivucci, Ajith Karunarathne   +11 more
doaj   +1 more source

NMDA Receptors Contribute to Retrograde Synaptic Transmission from Ganglion Cell Photoreceptors to Dopaminergic Amacrine Cells

Frontiers in Cellular Neuroscience, 2017
Recently, a line of evidence has demonstrated that the vertebrate retina possesses a novel retrograde signaling pathway. In this pathway, phototransduction is initiated by the photopigment melanopsin, which is expressed in a small population of retinal ...
Lei-Lei Liu, Nathan J. Spix, Dao-Qi Zhang   +2 more
doaj   +1 more source

Melanopsin-Expressing Retinal Ganglion-Cell Photoreceptors: Cellular Diversity and Role in Pattern Vision [PDF]

, 2010
Jennifer L. Ecker, O. N. Dumitrescu, Kwoon Y. Wong, Nazia M. Alam, Shih‐Kuo Chen, Tara A. LeGates, Jordan M. Renna, Glen T. Prusky, David M. Berson, Samer Hattar   +9 more
openalex   +1 more source

The C-terminus and Third Cytoplasmic Loop Cooperatively Activate Mouse Melanopsin Phototransduction [PDF]

, 2020
Juan C. Valdez‐Lopez, Stephen T. Petr, Matthew P. Donohue, Robin J. Bailey, Meheret Gebreeziabher, Evan G. Cameron, Julia Wolf, Veronika A. Szalai, Phyllis R. Robinson   +8 more
openalex   +1 more source

Illumination by short-wavelength light inside the blind spot decreases light detectability

iScience
Summary: Although the optic disk corresponding to the blind spot contains no classical photoreceptors, it contains photopigment melanopsin. To clarify whether melanopsin is involved in light detection, we conducted detection tasks for light stimuli ...
Marina Saito, Kentaro Miyamoto, Ikuya Murakami   +2 more
doaj   +1 more source