Results 151 to 160 of about 23,776 (285)
Pathogenesis of Melasma Explained
International Journal of Dermatology, EarlyView.Pathophysiology of melasma. ABSTRACT This review provides an in‐depth analysis of the pathophysiology of melasma and highlights recent studies that elucidate its underlying mechanisms. Given the prevalence of melasma, a thorough understanding of its pathogenesis is critical for the development of effective treatment strategies.
Lara Ali, Firas Al Niaimi
wiley +1 more source
Cubozoan genome illuminates functional diversification of opsins and photoreceptor evolution
Scientific Reports, 2015 Animals sense light primarily by an opsin-based photopigment present in a photoreceptor cell. Cnidaria are arguably the most basal phylum containing a well-developed visual system. The evolutionary history of opsins in the animal kingdom has not yet been
Michaela Liegertová +9 more
semanticscholar +1 more source
Hypotheses in light detection by vertebrate ancient opsin in the bird brain
Journal of Neuroendocrinology, EarlyView.Abstract Extra‐retinal photoreception is common across fish and avian species. In birds, the hypothalamus contains non‐visual photoreceptors that detect light and regulate multiple endocrine systems. To date, light‐dependent control of seasonal reproduction is one of the most well‐studied systems that require deep brain photoreception.
Tyler J. Stevenson +6 more
wiley +1 more source
Angewandte Chemie, Volume 137, Issue 21, May 19, 2025.In a solution of two metastable photoacids with contrasting absorption maxima, the solution pH may be control by varying the wavelength of the visible light input. This pH change governs the interaction between the Zn2+ cation and two competing anionic chiral ligands, detected by a change in circular dichroism (CD) spectra.
Matthew M. Wootten +3 more
wiley +2 more sources
, 2019 Light sensing by tissues distinct from the eye occurs in diverse animal groups, enabling circadian control and phototactic behaviour. Extraocular photoreceptors may also facilitate rapid colour change in cephalopods and lizards, but little is known about
Eacock, A. +5 more
core +1 more source
Variable rates of evolution among Drosophila opsin genes. [PDF]
, 1992 John P. Carulli, Daniel L. Hartl
openalex +1 more source
Hybridization and gene expression: Beyond differentially expressed genes
Molecular Ecology, EarlyView.Abstract Gene expression has a key role in reproductive isolation, and studies of hybrid gene expression have identified mechanisms causing hybrid sterility. Here, we review the evidence for altered gene expression following hybridization and outline the mechanisms shown to contribute to altered gene expression in hybrids. Transgressive gene expression,
Anna Runemark +2 more
wiley +1 more source
Molecular Ecology, EarlyView.Abstract Colour signals play pivotal roles in different communication systems, and the evolution of these characters has been associated with behavioural ecology, integumentary production processes and perceptual mechanisms of the species involved. Here, we present the first insight into the molecular and histological basis of skin colour polymorphism ...
Juliane P. C. Monteiro +7 more
wiley +1 more source
Visual Responses in Mice Lacking Critical Components of All Known Retinal Phototransduction Cascades [PDF]
, 2010 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
Encephalopsin: A Novel Mammalian Extraretinal Opsin Discretely Localized in the Brain [PDF]
, 1999 Seth Blackshaw, Solomon H. Snyder
openalex +1 more source