Results 11 to 20 of about 283,262 (306)

Synthesis retinal analogues of spiropyran derivaties, investigation they interactions with bacteriorhodopsin from H. salinarum

open access: yesТонкие химические технологии, 2006
The opportunity of design of analogue retinal with replacement of trimethylhexenic ring of a molecule on spiropyran moiety is shown. Process of interaction of the synthesized retinal analogues with bacterioopsin from apomembrane Halobacterium salinarum ...
A. V. Laptev   +2 more
doaj   +1 more source

Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures [PDF]

open access: yes, 2021
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet.
DasSarma, Shiladitya   +1 more
core   +1 more source

Preclinical pharmacology of a lipophenol in a mouse model of light-induced retinopathy

open access: yesExperimental and Molecular Medicine, 2020
Experimental & Molecular Medicine: Vision loss: Shedding light on how to prevent retinal damage Treating retinal damage in both aging and young patients might now be easier, thanks to treatment with a lipophenol, an omega-3 fatty acid linked to an ...
Nicolas Taveau   +10 more
doaj   +1 more source

Multi-Functional OCT Enables Longitudinal Study of Retinal Changes in a VLDLR Knockout Mouse Model. [PDF]

open access: yesPLoS ONE, 2016
We present a multi-functional optical coherence tomography (OCT) imaging approach to study retinal changes in the very-low-density-lipoprotein-receptor (VLDLR) knockout mouse model with a threefold contrast.
Marco Augustin   +9 more
doaj   +1 more source

Macular changes of neuromyelitis optica through spectral-domain optical coherence tomography [PDF]

open access: yesInternational Journal of Ophthalmology, 2016
AIM: To evaluate the thickness of the retinal layers in the macula using spectral-domain optical coherence tomography (SD-OCT) in patients with neuromyelitis optica (NMO).
Lu Cheng   +4 more
doaj   +1 more source

Developmental dynamics of cone photoreceptors in the eel [PDF]

open access: yes, 2009
Background: Many fish alter their expressed visual pigments during development. The number of retinal opsins expressed and their type is normally related to the environment in which they live.
Bowmaker, JK   +11 more
core   +1 more source

The effects of dietary carotenoid supplementation and retinal carotenoid accumulation on vision-mediated foraging in the house finch. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: For many bird species, vision is the primary sensory modality used to locate and assess food items. The health and spectral sensitivities of the avian visual system are influenced by diet-derived carotenoid pigments that accumulate in the ...
Matthew B Toomey, Kevin J McGraw
doaj   +1 more source

Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]

open access: yes, 2013
A quantitative analysis of photoreceptor properties was performed in the retina of the nocturnal deer mouse, Peromyscus maniculatus, using pigmented (wildtype) and albino animals.
Glösmann Martin   +8 more
core   +2 more sources

Visual adaptation of opsin genes to the aquatic environment in sea snakes

open access: yesBMC Evolutionary Biology, 2020
Background Evolutionary transitions from terrestrial to aquatic life history cause drastic changes in sensory systems. Indeed, the drastic changes in vision have been reported in many aquatic amniotes, convergently.
Takashi Seiko   +8 more
doaj   +1 more source

Accelerated evolution of dim-light vision-related arrestin in deep-diving amniotes

open access: yesFrontiers in Ecology and Evolution, 2022
Arrestins are key molecules involved in the signaling of light-sensation initiated by visual pigments in retinal photoreceptor cells. Vertebrate photoreceptor cells have two types of arrestins, rod arrestin, which is encoded by SAG and is expressed in ...
Xin Guo   +3 more
doaj   +1 more source

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