Search Results - "Hunt, David M."

Avian Visual Pigments: Characteristics, Spectral Tuning, and Evolution by Hart, Nathan S., Hunt, David M.

“…Birds are highly visual animals with complex visual systems. In this article, we discuss the spectral characteristics and genetic mechanisms of the spectral…”
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Molecular ecology and adaptation of visual photopigments in craniates by DAVIES, WAYNE I. L., COLLIN, SHAUN P., HUNT, DAVID M.

“…In craniates, opsin‐based photopigments expressed in the eye encode molecular ‘light sensors’ that constitute the initial protein in photoreception and the…”
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The origins of the full-field flash electroretinogram b-wave by Bhatt, Yashvi, Hunt, David M, Carvalho, Livia S

“…The electroretinogram (ERG) measures the electrical activity of retinal neurons and glial cells in response to a light stimulus. Amongst other techniques,…”
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Evolution and spectral tuning of visual pigments in birds and mammals by Hunt, David M., Carvalho, Livia S., Cowing, Jill A., Davies, Wayne L.

“…Variation in the types and spectral characteristics of visual pigments is a common mechanism for the adaptation of the vertebrate visual system to prevailing…”
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Molecular, Cellular and Functional Changes in the Retinas of Young Adult Mice Lacking the Voltage-Gated K + Channel Subunits Kv8.2 and K2.1 by Jiang, Xiaotian, Rashwan, Rabab, Voigt, Valentina, Nerbonne, Jeanne, Hunt, David M, Carvalho, Livia S

“…Cone Dystrophy with Supernormal Rod Response (CDSRR) is a rare autosomal recessive disorder leading to severe visual impairment in humans, but little is known…”
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Visual Pigments, Ocular Filters and the Evolution of Snake Vision by Simões, Bruno F, Sampaio, Filipa L, Douglas, Ronald H, Kodandaramaiah, Ullasa, Casewell, Nicholas R, Harrison, Robert A, Hart, Nathan S, Partridge, Julian C, Hunt, David M, Gower, David J

“…Much of what is known about the molecular evolution of vertebrate vision comes from studies of mammals, birds and fish. Reptiles (especially snakes) have…”
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Visual Opsin Diversity in Sharks and Rays by Hart, Nathan S, Lamb, Trevor D, Patel, Hardip R, Chuah, Aaron, Natoli, Riccardo C, Hudson, Nicholas J, Cutmore, Scott C, Davies, Wayne I L, Collin, Shaun P, Hunt, David M

“…The diversity of color vision systems found in extant vertebrates suggests that different evolutionary selection pressures have driven specializations in…”
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Evolution of Vertebrate Phototransduction: Cascade Activation by Lamb, Trevor D, Patel, Hardip, Chuah, Aaron, Natoli, Riccardo C, Davies, Wayne I L, Hart, Nathan S, Collin, Shaun P, Hunt, David M

“…We applied high-throughput sequencing to eye tissue from several species of basal vertebrates (a hagfish, two species of lamprey, and five species of…”
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Evolution of the calcium feedback steps of vertebrate phototransduction by Lamb, Trevor D., Hunt, David M.

“…We examined the genes encoding the proteins that mediate the Ca-feedback regulatory system in vertebrate rod and cone phototransduction. These proteins…”
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Visual opsin expression and morphological characterization of retinal photoreceptors in the pouched lamprey (Geotria australis, Gray) by Warrington, Rachael E., Davies, Wayne I. L., Hemmi, Jan M., Hart, Nathan S., Potter, Ian C., Collin, Shaun P., Hunt, David M.

“…Lampreys are extant members of the agnathan (jawless) vertebrates that diverged ~500 million years ago, during a critical stage of vertebrate evolution when…”
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The evolution of early vertebrate photoreceptors by Collin, Shaun P., Davies, Wayne L., Hart, Nathan S., Hunt, David M.

“…to be used by all subsequent vertebrate descendents. Image-forming eyes were under tremendous selection pressure and the ability to identify suitable prey and…”
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Guanylate cyclases and associated activator proteins in retinal disease by Hunt, David M, Buch, Prateek, Michaelides, Michel

“…Two isoforms of guanylate cyclase, GC1 and GC2 encoded by GUCY2D and GUCY2F, are responsible for the replenishment of cGMP in photoreceptors after exposure to…”
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Spectral tuning and evolution of primate short-wavelength-sensitive visual pigments by Carvalho, Livia S, Davies, Wayne L, Robinson, Phyllis R, Hunt, David M

“…The peak sensitivities (λmax) of the short-wavelength-sensitive-1 (SWS1) pigments in mammals range from the ultraviolet (UV) (360–400 nm) to the violet…”
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The effect of cone opsin mutations on retinal structure and the integrity of the photoreceptor mosaic by Carroll, Joseph, Dubra, Alfredo, Gardner, Jessica C, Mizrahi-Meissonnier, Liliana, Cooper, Robert F, Dubis, Adam M, Nordgren, Rick, Genead, Mohamed, Connor, Jr, Thomas B, Stepien, Kimberly E, Sharon, Dror, Hunt, David M, Banin, Eyal, Hardcastle, Alison J, Moore, Anthony T, Williams, David R, Fishman, Gerald, Neitz, Jay, Neitz, Maureen, Michaelides, Michel

“…To evaluate retinal structure and photoreceptor mosaic integrity in subjects with OPN1LW and OPN1MW mutations. Eleven subjects were recruited, eight of whom…”
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Evolution of the cichlid visual palette through ontogenetic subfunctionalization of the opsin gene arrays by Spady, Tyrone C, Parry, Juliet W L, Robinson, Phyllis R, Hunt, David M, Bowmaker, James K, Carleton, Karen L

“…The evolution of cone opsin genes is characterized by a dynamic process of gene birth and death through gene duplication and loss. However, the forces…”
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Mix and Match Color Vision: Tuning Spectral Sensitivity by Differential Opsin Gene Expression in Lake Malawi Cichlids by Parry, Juliet W.L., Carleton, Karen L., Spady, Tyrone, Carboo, Aba, Hunt, David M., Bowmaker, James K.

“…Cichlid fish of the East African Rift Lakes are renowned for their diversity and offer a unique opportunity to study adaptive changes in the visual system in…”
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Differential stability of variant OPN1LW gene transcripts in myopic patients by Mountford, Jessica K, Davies, Wayne I L, Griffiths, Lyn R, Yazar, Seyhan, Mackey, David A, Hunt, David M

“…In Bornholm eye disease, a defect in the splicing of transcripts from a variant opsin gene leads to a depletion in spliced transcript levels and, consequently,…”
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The influence of ontogeny and light environment on the expression of visual pigment opsins in the retina of the black bream, Acanthopagrus butcheri by Shand, Julia, Davies, Wayne L, Thomas, Nicole, Balmer, Lois, Cowing, Jill A, Pointer, Marie, Carvalho, Livia S, Trezise, Ann E O, Collin, Shaun P, Beazley, Lyn D, Hunt, David M

“…The correlation between ontogenetic changes in the spectral absorption characteristics of retinal photoreceptors and expression of visual pigment opsins was…”
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Evolution of the shut-off steps of vertebrate phototransduction by Lamb, Trevor D., Patel, Hardip R., Chuah, Aaron, Hunt, David M.

“…Different isoforms of the genes involved in phototransduction are expressed in vertebrate rod and cone photoreceptors, providing a unique example of parallel…”
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Retinal amino acid neurochemistry of the southern hemisphere lamprey, Geotria australis by Nivison-Smith, Lisa, Collin, Shaun P, Zhu, Yuan, Ready, Sarah, Acosta, Monica L, Hunt, David M, Potter, Ian C, Kalloniatis, Michael

“…Lampreys are one of the two surviving groups of the agnathan (jawless) stages in vertebrate evolution and are thus ideal candidates for elucidating the…”
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