Results 51 to 60 of about 2,551 (127)

A Double‐Blind Randomised Controlled Crossover Trial of the Effect of Blue‐Enriched Ambient Light on Sleep in Older Adults With Sleep Disturbance: The CleverLights Study

Journal of Sleep Research, EarlyView.
ABSTRACT Light interventions have been investigated for treating sleep disturbances in older adults; however, findings are mixed. This proof‐of‐concept trial investigated the effect of blue‐enriched ambient light on electroencephalographic (EEG) sleep in older adults with self‐reported poor sleep.
Teha B. Pun, Craig L. Phillips, Nathaniel S. Marshall, Matthew Rahimi, Rick Wassing, Maria Comas, Angela L. D'Rozario, Camilla M. Hoyos, Delwyn J. Bartlett, Wenye Hu, Sharon L. Naismith, Sean Cain, Svetlana Postnova, Ronald R. Grunstein, Christopher J. Gordon   +14 more
wiley   +1 more source

The effects of spectrum, irradiance, and duration of exposure on light‐induced melatonin suppression in healthy adults

Photochemistry and Photobiology, EarlyView.
The left panel reports the measured time course data of melatonin concentration in the blood plasma of 17 BL‐Rs and 15 BL‐NRs at baseline, during a two‐hour stay in the dark, during a one‐hour light exposure to blue light, and again in the dark. The right panel shows the magnitude of melatonin concentration after 60 min of exposure to warm white, cool ...
Helmut Piazena, Leonora Franke, Ralf Uebelhack, Thomas Penzel, Ingo Fietze   +4 more
wiley   +1 more source

Blue-Light Stimulation for Myopia Prevention: Only Retinal but Not Optic Disc Stimulation Modulates the Pattern ERG

Life
Blue-light stimulation of the optic disc has been suggested as a means of myopia prevention by activating dopaminergic amacrine cells via intrinsically photosensitive retinal ganglion cells.
Isabella Silke Elisabeth Mehler, Sven Pascal Heinrich, Daniel Böhringer, Valentin Simon, Tim Bleul, Sebastian Küchlin, Wolf Alexander Lagrèze, Navid Farassat   +7 more
doaj   +1 more source

Müller Glia Subtypes Define Neuro‐Glial Associations and Spatial Morphogen Axes in the Zebrafish Retina

Glia, Volume 74, Issue 11, November 2026.
Zebrafish Müller glia are heterogeneous in the early larval retina. Zebrafish Müller glia subtypes define a spatial axis of retinoic acid metabolism. Neuron‐associated glial programs identified in Zebrafish Müller glia are evolutionarily conserved in mammals. ABSTRACT Müller glia are instrumental macroglia of the vertebrate retina, once thought to be a
Samuel S. Storey, Carrie L. Hehr, Shaelene Standing, Sarah McFarlane   +3 more
wiley   +1 more source

The Intrinsic Blue Light Responses of Avian Müller Glial Cells Imply Calcium Release from Internal Stores

ASN Neuro, 2022
The retina of vertebrates is responsible for capturing light through visual (cones and rods) and non-visual photoreceptors (intrinsically photosensitive retinal ganglion cells and horizontal cells) triggering a number of essential activities associated ...
Natalia A. Marchese, Maximiliano N. Ríos, Mario E. Guido   +2 more
doaj   +1 more source

Amacrine cell inputs to OFF midget ganglion cells in macaque retina

The Journal of Physiology, Volume 604, Issue 21, Page 8749-8766, 1 November 2026.
Abstract figure legend The goal of this study was to explain the findings from physiological studies that OFF midget ganglion cells had larger receptive field centers than expected from their dendritic field diameters. First, we confirmed that OFF mRGCs (OFF MGC) receive input from diffuse bipolar cells (DB) as well as OFF midget bipolar cells (FMB ...
David W. Marshak, Andrea S. Bordt, Emma R. Yang, Joel N. Yearick, Marcus Mazzaferri, James A. Kuchenbecker, Judith Mosinger Ogilvie, Sara S. Patterson, Jay Neitz   +8 more
wiley   +1 more source

Carbenoxolone blocks the light-evoked rise in intracellular calcium in isolated melanopsin ganglion cell photoreceptors.

PLoS ONE, 2011
BackgroundRetinal ganglion cells expressing the photopigment melanopsin are intrinsically photosensitive (ipRGCs). These ganglion cell photoreceptors send axons to several central targets involved in a variety of functions.
Jayne R Bramley, Erin M Wiles, Patricia J Sollars, Gary E Pickard   +3 more
doaj   +1 more source

The right temperature at the right time: A framework for understanding thermoregulatory pathophysiology in Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 10, October 2026.
Abstract The neuromodulatory subcortical system (NSS) includes thermoregulatory neurons that maintain core body temperature (Tb) and brain temperature within a narrow, diurnally varying range. Cellular pathways in NSS neurons implicated in Alzheimer's disease (AD) may be vulnerable to Tb rhythm disturbance because of their sensitivity to temperature ...
Esther Blessing
wiley   +1 more source

Spatial distribution and functional integration of displaced retinal ganglion cells

Scientific Reports
The retina contains distinct types of ganglion cells, which form mosaics with cells of each type at each position of the visual field. Displaced retinal ganglion cells (dRGCs) occur with cell bodies in the inner nuclear layer (INL), and regularly placed ...
Sabrina Duda, Christoph T. Block, Dipti R. Pradhan, Yousef Arzhangnia, Alina Klaiber, Martin Greschner, Christian Puller   +6 more
doaj   +1 more source

A Tale of Two States: Similarities and Differences in Neuropeptide Signaling in Larval and Adult Drosophila

Journal of Comparative Neurology, Volume 534, Issue 10, October 2026.
Neurosecretory cells of the brain are mostly the same in larvae and adults of Drosophila melanogaster and they produce the same neuropeptides and peptide hormones (NPHs), yet their functional roles differ to a large extent between the two stages. Many other peptidergic neurons change both in numbers and function.
Dick R. Nässel
wiley   +1 more source