In the vertebrate retina, dopamine is synthesized and released by a specialized type of amacrine cell, the dopaminergic amacrine cell (DAC). DAC activity is stimulated by rods, cones, and melanopsin-expressing intrinsically photosensitive retinal ...
Xiwu Zhao, Kwoon Y. Wong, Dao-Qi Zhang
doaj +1 more source
Reported light in the sleep environment: enhancement of the sleep diary. [PDF]
BackgroundLight is the primary synchronizing cue for the circadian timing system, capable of exerting robust physiological effects, even with very dim and/or brief photic exposure. Mammals, including humans, are particularly susceptible to light at night.
Ancoli-Israel, Sonia +4 more
core
Visual Responses in Mice Lacking Critical Components of All Known Retinal Phototransduction Cascades [PDF]
The mammalian visual system relies upon light detection by outer-retinal rod/cone photoreceptors and melanopsin-expressing retinal ganglion cells. Gnat1(-/-); Cnga3(-/-); Opn4(-/-) mice lack critical elements of each of these photoreceptive mechanisms ...
Allen, AE +4 more
core
Funciones no visuales de la retina: Razones para cuidar la retina en la ceguera total [PDF]
La retina es una porción del sistema nervioso central formada por una red de neuronas especializadas que se localiza tapizando el interior del globo ocular. En este tejido, los estímulos luminosos desencadenan respuestas eléctricas y químicas que activan
Cuenca, Nicolás +2 more
core +1 more source
A subset of ipRGCs regulates both maturation of the circadian clock and segregation of retinogeniculate projections in mice [PDF]
et al, +3 more
core +2 more sources
[Phototransduction mediated by melanopsin in intrinsically photosensitive retinal ganglion cells].
Melanopsin is the most recent photopigment described. As all the other opsins, it attaches in the retina as chromophore. Its amino acid sequence resembles more invertebrate opsins than those of vertebrates. The signal transduction pathway of opsins in vertebrates is based on the coupling to the G protein transducin, triggering a signaling cascade that ...
Carlos Augusto, Domínguez-Solís +1 more
openaire +1 more source
Neuropsin-expressing cells in the retina affect melanopsin expression and response to light in mice. [PDF]
Calligaro H +5 more
europepmc +1 more source
In silico characterisation and chromosomal localisation of human RRH (peropsin) – implications for opsin evolution [PDF]
Bellingham, J, Foster, R G, Wells, D J
core +1 more source
Genetic Loss of VGLUT1 Alters Histogenesis of Retinal Glutamatergic Cells and Reveals Dynamic Expression of VGLUT2 in Cones. [PDF]
Majumdar S, Wu V.
europepmc +1 more source
Non-visual opsins and their role in circadian photoentrainment. [PDF]
Buhr ED, Van Gelder RN.
europepmc +1 more source

