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Mostrando ítems 21-30 de 78
A base molecular das adaptações visuais nos genes das opsinas de Anableps anableps e Phreatobius cisternarum através da análise de transcriptomaThe molecular basis of the visual adaptations in the opsin genes from Anableps anableps and Phreatobius cisternarum through transcriptome analysis
(Universidade Federal do ParáBrasilInstituto de Ciências BiológicasUFPAPrograma de Pós-Graduação em Neurociências e Biologia Celular, 2019)
Insights into butterfly ecology and evolutión
(2014)
This dissertation examined features of the butterfly visual system. The first part used opsin genes, which code for the visual pigment proteins, in reconstruction of butterfly phylogenies. The second part examined butterfly ...
Short-wavelength visual sensitivity and sexual differences in plumage colouration of ovenbirds (Aves: Furnariinae)Visuelle Sensitivität für kurzwelliges Licht und Geschlechtsunterschiede in der Gefederfärbung von Töpfervögeln (Aves: Furnariidnae)
(Springer, 2021-07)
Ovenbirds represent a clade of exclusively Neotropical birds that are exceptionally diverse, despite their rather dull, melanin-based plumage. In general, sexes are considered monomorphic in size and colour, but several ...
Non-visual photopigments effects of constant light-emitting diode light exposure on the inner retina of Wistar rats
(Frontiers Media S.A., 2017-08)
The retina is part of the central nervous system specially adapted to capture light photons and transmit this information to the brain through photosensitive retinal cells involved in visual and non-visual activities. ...
The evolution of opsins and color vision: connecting genotype to a complex phenotype
(Universidad Nacional de Colombia - Sede Bogotá - Faculdad de Ciencias - Departamento de Biología, 2016-09-01)
Dissecting the genetic basis of adaptive traits is key to our understanding of evolutionary processes. A major and essential step in the study of evolutionary genetics is drawing link between genotype and phenotype, which ...
Effect of GDNF on neuroblast proliferation and photoreceptor survival: additive protection with docosahexaenoic acid
(Association for Research in Vision and Ophthalmology, 2001-11)
Purpose. In a previous study, it was reported that docosahexaenoic acid (DHA) is essential to postpone apoptosis and to promote differentiation of rat retina photoreceptors in vitro. In the current study, the protective ...
Docosahexaenoic acid promotes photoreceptor differentiation without altering Crx expression
(Association for Research in Vision and Ophthalmology, 2006-07)
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. The lipid ...
Ceramide-1-phosphate: a new mediator of survival and development in retina photoreceptors
(Association For Research In Vision And Ophthalmology, 2011-08)
Purpose. Simple sphingolipids control crucial cellular processes in several cell types. We demonstrated that sphingolipids such as ceramide, sphingosine and sphingosine-1-phosphate are key mediators in the regulation of ...
Sphingosine-1-Phosphate Is a Key Regulator of Proliferation and Differentiation in Retina Photoreceptors
(Association for Research in Vision and Ophthalmology, 2009-09)
PURPOSE. Identifying the cues required for survival and development of photoreceptors is essential for treating retina neurodegenerations. We previously established that glial derived neurotrophic factor (GDNF) stimulates ...