Results 21 to 30 of about 400,493 (285)

Growth Cones: Structural, Molecular and Functional Relevance to Neuronal Migration, Regeneration and Reproductive Function [PDF]

open access: yesJournal of Medical Academics
The specialized cells of the human brain form a complex network responsible for neural processing and transmission via various electrochemical signaling pathways.
Mona Sharma, Anmol Garg, Tanya Gupta
doaj   +1 more source

A nonlocal supercritical Neumann problem [PDF]

open access: yes, 2019
We establish existence of positive non-decreasing radial solutions for a nonlocal nonlinear Neumann problem both in the ball and in the annulus. The nonlinearity that we consider is rather general, allowing for supercritical growth (in the sense of ...
Cinti, Eleonora, Colasuonno, Francesca
core   +2 more sources

Robo2 acts in trans to inhibit Slit-Robo1 repulsion in pre-crossing commissural axons

open access: yeseLife, 2015
During nervous system development, commissural axons cross the midline despite the presence of repellant ligands. In Drosophila, commissural axons avoid premature responsiveness to the midline repellant Slit by expressing the endosomal sorting receptor ...
Timothy A Evans   +3 more
doaj   +1 more source

Transcriptional Control of Axon Guidance at Midline Structures

open access: yesFrontiers in Cell and Developmental Biology, 2022
The development of the nervous system is a time-ordered and multi-stepped process that includes neurogenesis and neuronal specification, axonal navigation, and circuits assembly.
Eloísa Herrera, Augusto Escalante
doaj   +1 more source

Post-mortem Characterisation of a Case With an ACTG1 Variant, Agenesis of the Corpus Callosum and Neuronal Heterotopia

open access: yesFrontiers in Physiology, 2019
Cytoplasmic Actin Gamma 1 (ACTG1) gene variant are autosomal dominant and can cause CNS anomalies (Baraitser Winter Malformation Syndrome; BWMS). ACTG1 anomalies in offspring include agenesis of the corpus callosum (ACC) and neuronal heterotopia which ...
Regina Vontell   +13 more
doaj   +1 more source

High-resolution spatiotemporal analysis of single serotonergic axons in an in vitro system

open access: yesFrontiers in Neuroscience, 2022
Vertebrate brains have a dual structure, composed of (i) axons that can be well-captured with graph-theoretical methods and (ii) axons that form a dense matrix in which neurons with precise connections operate.
Melissa Hingorani   +3 more
doaj   +1 more source

Mechanisms of growth cone repulsion [PDF]

open access: yesF1000 Biology Reports, 2010
Research conducted in the last century suggested that chemoattractants guide cells or their processes to appropriate locations during development. Today, we know that many of the molecules involved in cellular guidance can act as chemorepellents that prevent migration into inappropriate territories. Here, we review some of the early seminal experiments
Krull, Catherine E, Eisen, Judith S
openaire   +2 more sources

miR-182 Regulates Slit2-Mediated Axon Guidance by Modulating the Local Translation of a Specific mRNA

open access: yesCell Reports, 2017
During brain wiring, cue-induced axon behaviors such as directional steering and branching are aided by localized mRNA translation. Different guidance cues elicit translation of subsets of mRNAs that differentially regulate the cytoskeleton, yet little ...
Anaïs Bellon   +14 more
doaj   +1 more source

With the Permission of Microtubules: An Updated Overview on Microtubule Function During Axon Pathfinding

open access: yesFrontiers in Molecular Neuroscience, 2021
During the establishment of neural circuitry axons often need to cover long distances to reach remote targets. The stereotyped navigation of these axons defines the connectivity between brain regions and cellular subtypes.
Carlos Sánchez-Huertas, Eloísa Herrera
doaj   +1 more source

Actin dynamics in growth cones [PDF]

open access: yesThe Journal of Neuroscience, 1991
The mechanism of actin incorporation and turnover in the nerve growth cone was examined by immunoelectron microscopy and low-light-level video microscopy of cultured neurons injected with biotin-labeled actin or fluorescently labeled actin. We first determined the sites of actin incorporation into the cytoskeleton of growth cones by immunoelectron ...
S, Okabe, N, Hirokawa
openaire   +2 more sources

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