Results 31 to 40 of about 448,604 (375)

Rapid signaling in distinct dopaminergic axons during locomotion and reward

open access: yesNature, 2016
Dopaminergic projection axons from the midbrain to the striatum are crucial for motor control, as their degeneration in Parkinson disease results in profound movement deficits. Paradoxically, most recording methods report rapid phasic dopamine signalling
M. Howe, D. Dombeck
semanticscholar   +1 more source

Lmx1b is required at multiple stages to build expansive serotonergic axon architectures

open access: yeseLife, 2019
Formation of long-range axons occurs over multiple stages of morphological maturation. However, the intrinsic transcriptional mechanisms that temporally control different stages of axon projection development are unknown. Here, we addressed this question
Lauren J Donovan   +7 more
doaj   +1 more source

Cytoplasmic cleavage of IMPA1 3′ UTR is necessary for maintaining axon integrity

open access: yesCell Reports, 2021
Summary: The 3′ untranslated regions (3′ UTRs) of messenger RNAs (mRNAs) are non-coding sequences involved in many aspects of mRNA metabolism, including intracellular localization and translation.
Catia Andreassi   +10 more
doaj   +1 more source

Requirement for Slit-1 and Robo-2 in zonal segregation of olfactory sensory neuron axons in the main olfactory bulb [PDF]

open access: yes, 2007
The formation of precise stereotypic connections in sensory systems is critical for the ability to detect and process signals from the environment. In the olfactory system, olfactory sensory neurons (OSNs) project axons to spatially defined glomeruli ...
Andrews, W   +4 more
core   +1 more source

A large fraction of neocortical myelin ensheathes axons of local inhibitory neurons

open access: yeseLife, 2016
Myelin is best known for its role in increasing the conduction velocity and metabolic efficiency of long-range excitatory axons. Accordingly, the myelin observed in neocortical gray matter is thought to mostly ensheath excitatory axons connecting to ...
Kristina D. Micheva   +6 more
semanticscholar   +1 more source

Tau and spectraplakins promote synapse formation and maintenance through Jun kinase and neuronal trafficking

open access: yeseLife, 2016
The mechanisms regulating synapse numbers during development and ageing are essential for normal brain function and closely linked to brain disorders including dementias. Using Drosophila, we demonstrate roles of the microtubule-associated protein Tau in
Andre Voelzmann   +6 more
doaj   +1 more source

Neural activity promotes long distance, target-specific regeneration of adult retinal axons

open access: yesNature Neuroscience, 2016
Axons in the mammalian CNS fail to regenerate after injury. Here we show that if the activity of mouse retinal ganglion cells (RGCs) is increased by visual stimulation or using chemogenetics, their axons regenerate.
Jung-Hwan A. Lim   +7 more
semanticscholar   +1 more source

Electron cryo-tomography reveals the subcellular architecture of growing axons in human brain organoids

open access: yeseLife, 2021
During brain development, axons must extend over great distances in a relatively short amount of time. How the subcellular architecture of the growing axon sustains the requirements for such rapid build-up of cellular constituents has remained elusive ...
Patrick C Hoffmann   +6 more
doaj   +1 more source

A model of toxic neuropathy in Drosophila reveals a role for MORN4 in promoting axonal degeneration [PDF]

open access: yes, 2012
Axonal degeneration is a molecular self-destruction cascade initiated following traumatic, toxic, and metabolic insults. Its mechanism underlies a number of disorders including hereditary and diabetic neuropathies and the neurotoxic side effects of ...
Bhattacharya, Martha R.C.   +7 more
core   +2 more sources

Extent and mechanism of sealing in transected giant axons of squid and earthworms [PDF]

open access: yes, 1994
Transected axons are often assumed to seal at their cut ends by the formation of continuous membrane barriers that allow for the restoration of function in the axonal stumps.
Ballinger, Martis L.   +3 more
core   +1 more source

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