Results 101 to 110 of about 38,225 (233)

Circadian regulation of reproduction and neoblast cell division in the catenulid flatworm Stenostomum virginianum (Platyhelminthes)

Photochemistry and Photobiology, EarlyView.
The circadian clock and melatonin coordinate homeostasis in many animals, yet their influence on reproduction and neoblast proliferation has only been shown in triclads. This study demonstrates that the early‐branching catenulid Stenostomum virginianum contains photoreceptive refractile bodies, synthesizes endogenous melatonin, and that exogenous ...
Daniel L. Stanton, Ian D. Deas, J. Kennon Smith, Samuel B. Robinson, Adam M. Reitzel, Julian P. S. Smith III   +5 more
wiley   +1 more source

Advances in cardiac devices and bioelectronics augmented with artificial intelligence

The Journal of Physiology, EarlyView.
Abstract figure legend Interfaces between the human heart, diagnostic bioelectronics, artificial intelligence, and clinical care. From left to right: Human heart and biosensor interface; representative waveforms of common diagnostic bioelectronic sensing modalities.
Charles Stark, Eric Rytkin, Andrei Alexandru Mircea, Igor R. Efimov   +3 more
wiley   +1 more source

Expression of Non-visual Opsins Opn3 and Opn5 in the Developing Inner Retinal Cells of Birds. Light-Responses in Müller Glial Cells

Frontiers in Cellular Neuroscience, 2019
The avian retina is composed of different types of photoreceptors responsible for image and non-image forming tasks: the visual photoreceptor cells (cones and rods), the melanopsin-expressing intrinsically photoresponsive retinal ganglion cells (ipRGCs ...
Maximiliano N. Rios, Maximiliano N. Rios, Natalia A. Marchese, Natalia A. Marchese, Mario E. Guido, Mario E. Guido   +5 more
doaj   +1 more source

Identification and Expression Patterns of Opsin Genes in a Forest Insect, Dendrolimus punctatus

Insects, 2020
Dendrolimus punctatus walker (Lepidoptera: Lasiocampidae) is the most serious coniferous forest defoliator in China. This species has long life history, and shows different activity rhythms and light response behaviors at larval and adult stages.
Sufang Zhang, Xiangbo Kong, Fu Liu, Zhen Zhang   +3 more
doaj   +1 more source

Capalictus, a new subgenus of Lasioglossum Curtis, 1833 from South Africa, with description of three new species (Hymenoptera, Apoidea, Halictidae) [PDF]

, 2012
Capalictus, a new subgenus of Lasioglossum Curtis, 1833 (Hymenoptera, Apoidea, Halictidae), endemic to the South African Cape Province, is described. The type species is Halictus mosselinus Cockerell, 1945. Evylaeus (Sellalictus) fynbosensis (Pauly et al.
Gibbs, Jason, Kuhlmann, Michael, Pauly, Alain   +2 more
core   +3 more sources

GRKs and arrestins: Nomenclature and functions in GPCR‐dependent and ‐independent signalling

British Journal of Pharmacology, Volume 183, Issue 11, Page 2619-2633, June 2026.
G protein‐coupled receptor (GPCR) kinases (GRKs) and arrestins play a critical role in the regulation of GPCR signalling. Historic names of mammalian GRKs were replaced by systematic ones in the 1990s; however, both kinds of names are currently in use for mammalian arrestins.
Vsevolod V. Gurevich
wiley   +1 more source

Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae)

Anais da Academia Brasileira de Ciências
Cichlid fishes are an important group in evolutionary biology due to their fast speciation. This group depends widely of vision for feeding and reproduction.
THOMAZ M.C. FABRIN, SONIA MARIA A.P. PRIOLI, ALBERTO JOSÉ PRIOLI   +2 more
doaj   +1 more source

Color vision: Opsins and options [PDF]

Proceedings of the National Academy of Sciences, 1999
A recent estimate suggests that we can potentially distinguish 2.3 million colors (1), and yet we achieve this by comparing the rates at which photons are absorbed in just three classes of retinal photopigment (Fig. 1 Lower). The photopigments consist of 11-cis-retinal bound to different “opsins,” which are members of the large family of G-protein ...
openaire   +2 more sources

Colour Vision Deficiency in Health Professions Education: A Narrative Literature Review

The Clinical Teacher, Volume 23, Issue 3, June 2026.
ABSTRACT Background Colour vision deficiency (CVD) or colour blindness can affect healthcare professionals in tasks that require colour perception. Despite its occurrence, there is limited awareness within healthcare education to support students and practitioners with CVD.
Marnie Imhoff, Linsey Donner, Ashley Eichleberg, Kevin McGuire   +3 more
wiley   +1 more source

Exposure to the complement C5b-9 complex sensitizes 661W photoreceptor cells to both apoptosis and necroptosis. [PDF]

, 2015
The loss of photoreceptors is the defining characteristic of many retinal degenerative diseases, but the mechanisms that regulate photoreceptor cell death are not fully understood.
Francesca Cordeiro, M, Guo, L, Moss, SE, Shi, H, Stampoulis, D, Williams, JA   +5 more
core   +1 more source