Results 21 to 30 of about 498,360 (318)
Frontiers in Molecular Biosciences, 2021 Rhodopsins act as photoreceptors with their chromophore retinal (vitamin-A aldehyde) and they regulate light-dependent biological functions. Archaerhodopsin-3 (AR3) is an outward proton pump that has been widely utilized as a tool for optogenetics, a ...
Taichi Tsuneishi +7 more
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Free Radical Mediated Oxidative Degradation of Carotenes and Xanthophylls
Molecules, 2020 This article reviews the excited-state quenching, pro-vitamin A activity and anticarcinogenicity of carotenes and xanthophylls in relation to their chemical structures.
Raphael C. Mordi +4 more
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Uptake and metabolism of retinol (vitamin A) in the isolated perfused rat liver
Journal of Lipid Research, 1965 The isolated perfused liver was employed to study various aspects of retinol-C14 metabolism. The rate of uptake of retinol, retinal, retinoic acid, and retinol acetate was rapid (first-order rate constant, k = 0.12–0.16 min−1) during the first 3–10 min ...
Richard D. Zachman, James Allen Olson
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Applied Sciences, 2021 Bacteriorhodopsin (bR) is a photoactive protein that has gained increasing importance as a tool for optical memory storage due to its remarkable photochemical and thermal stability.
Roma Patel +2 more
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Acta Ophthalmologica, 2013 Abstract.Purpose:Malfunction of retinal blood flow or oxygenation is believed to be involved in various diseases. Among them are retinal vessel occlusions, diabetic retinopathy and glaucoma. Reliable, non‐invasive technology for retinal oxygen measurements has been scarce and most of the knowledge on retinal oxygenation comes from animal studies.
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Unusual Case of Mature Cystic Teratoma Showing Rare Tissues: A Case Report [PDF]
Journal of Medical Academics, 2023 Background: Teratomas are known to show a wide variety of tissues in their microscopic analysis; however, the most common types are lined by skin-like structures and are known as dermoid cysts.
Archna Rautela +2 more
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Microneedle-Facilitated Intradermal Proretinal Nanoparticle Delivery
Nanomaterials, 2020 Topical retinoid treatments stimulate biological activities in the skin. The main physical barrier, which limits the efficacy of transdermal drug delivery, is the stratum corneum.
Benchaphorn Limcharoen +9 more
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The Root Clock as a Signal Integrator System: Ensuring Balance for Survival
Frontiers in Plant Science, 2022 The root system is essential for the survival of terrestrial plants, plant development, and adaptation to changing environments. The development of the root system relies on post-embryonic organogenesis and more specifically on the formation and growth ...
Estefano Bustillo-Avendaño +2 more
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Laser Photocoagulation for Retinal Detachments and Retinal Tears in Cytomegalovirus Retinitis
Ophthalmology, 1997 Retinal detachment complicates the course of cytomegalovirus (CMV) retinitis in nearly 30% of human immunodeficiency virus-infected patients. The study goal was to evaluate laser photocoagulation in the treatment of CMV retinitis-related retinal detachments and retinal tears.Nonrandomized, observational cohort study.Sixty-three patients with CMV ...
J L, Davis, J, Hummer, W J, Feuer
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Retinal prostheses in degenerative retinal diseases
Journal of the Chinese Medical Association, 2015 Degenerative retinal diseases may lead to significant loss of vision. Age-related macular degeneration (AMD) and retinitis pigmentosa (RP), which eventually affect the photoreceptors, are the two most common retinal degenerative diseases. Once the photoreceptorcells are lost, there are no known effective therapies for AMD or RP.
Lin, Tai-Chi +6 more
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