Retinal waves are unlikely to instruct the formation of eye-specific retinogeniculate projections.

Neural Dev

Department of Neurobiology, Physiology and Behavior, College of Biological Sciences, School of Medicine, University of California, Davis, CA 95616, USA.

Published: July 2009

In all mammalian species the projections of the two eyes to the dorsal lateral geniculate nucleus are initially overlapping before gradually forming the eye-specific domains evident at maturity. It is widely thought that retinal waves of neuronal activity play an instructional role in this developmental process. Here, I discuss the myriad reasons why retinal waves are unlikely to have such a role, and suggest that eye-specific molecular cues in combination with neuronal activity are most probably involved in the formation of eye-specific retinogeniculate projections.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2706240PMC
http://dx.doi.org/10.1186/1749-8104-4-25DOI Listing

Publication Analysis

Top Keywords

retinal waves
12
formation eye-specific
8
eye-specific retinogeniculate
8
retinogeniculate projections
8
neuronal activity
8
waves instruct
4
instruct formation
4
eye-specific
4
projections mammalian
4
mammalian species
4

Similar Publications

Microglia, the parenchymal macrophage of the central nervous system, serve crucial remodeling functions throughout development. Microglia are transcriptionally heterogenous, suggesting that distinct microglial states confer discrete roles. Currently, little is known about how dynamic these states are, the cues that promote them, or how they impact microglial function.

View Article and Find Full Text PDF

Effect of induced astigmatism on vestibulo-ocular reflex.

Clin Exp Optom

January 2025

Department of Optometry, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.

Clinical Relevance: The vestibular-ocular reflex stabilises the retinal image and maintains balance during head movement. Astigmatism is one of the common refractive errors that can reduce the quality of visual inputs.

Background: The purpose of this study was to investigate the effect of induced astigmatism on the function of the vestibular-ocular reflex.

View Article and Find Full Text PDF

Senescent retinal pigment epithelial cells play a key role in neovascular age-related macular degeneration (nAMD); however, the mechanisms underlying the angiogenic ability of these cells remain unclear. Herein, we investigated the effects of the senescent adult retinal pigment epithelial cell line-19 (ARPE-19) on wound healing, cell migration and survival, and tube formation abilities of human umbilical vein endothelial cells (HUVECs). Additionally, we used Brown Norway rats to establish a laser-induced choroidal neovascularization (CNV) model for further nAMD-related studies.

View Article and Find Full Text PDF

In the early stages of retinal development, a form of correlated activity known as retinal waves causes periodic depolarizations of immature retinal ganglion cells (RGCs). Retinal waves are crucial for refining visual maps in the brain's retinofugal targets and for the development of retinal circuits underlying feature detection, such as direction selectivity. Yet, how waves alter gene expression in immature RGCs is poorly understood, particularly at the level of the many distinct types of RGCs that underlie the retina's ability to encode diverse visual features.

View Article and Find Full Text PDF

Associations of light-adapted electroretinogram in paediatric amblyopia.

Ophthalmic Physiol Opt

December 2024

Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China.

Purpose: The aim of this study was to investigate changes in the light-adapted (LA) electroretinogram (ERG) associated with paediatric amblyopia.

Method: A total of 220 eyes from 81 postoperative paediatric cataract patients and 29 healthy children were enrolled in four groups, namely controls, unilaterally amblyopic eyes, non-amblyopic fellow eyes and bilaterally affected eyes. Differences in LA ERG variables (peak time and amplitude of a- and b-waves and photopic negative response [PhNR]) were compared across groups, as well as their associations with visual acuity and changes in axial length.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!