Slowing of axonal regeneration is correlated with increased axonal viscosity during aging
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چکیده
منابع مشابه
Slowing of the axonal transport of neurofilament proteins during development.
We examined age-dependent changes in neurofilament transport in motor axons of the rat sciatic nerve. SDS-PAGE and gel fluorography confirmed that the distribution of labeled neurofilament triplet protein coincides with the major slow component a (SCa) wave in these neurons. The velocity of neurofilament transport was calculated on the basis of the location of the 50th percentile Of radioactivi...
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Because axonal damage and loss are frequent phenomena of multiple sclerosis and other types of neurodegenerative diseases, and because the effects can be devastating clinically, attention has been focused on repair to axons. However, axon regeneration appears to be inhibited via a variety of possible cellular pathways and molecules. In the following article, several of these pathways are examin...
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Aging is a major risk factor for many neurological diseases and is associated with mild cognitive decline. Previous studies suggest that aging is accompanied by reduced synapse number and synaptic plasticity in specific brain regions. However, most studies, to date, used either postmortem or ex vivo preparations and lacked key in vivo evidence. Thus, whether neuronal arbors and synaptic structu...
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Although intradendritic protein synthesis has been documented in adult neurons, the question of whether axons actively synthesize proteins remains controversial. Adult sensory neurons that are conditioned by axonal crush can rapidly extend processes in vitro by regulating the translation of existing mRNAs (Twiss et al., 2000). These regenerating processes contain axonal but not dendritic protei...
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Intraocular injections of radiolabeled amino acids permitted the study of protein biosynthesis in goldfish retinal ganglion cells and the distribution of this material to the synapse via intra-axonal transport, during regeneration of the fish visual system. There is a 3-fold increase in amino acid incorporated within the ganglion cell layer compared to intact contralateral controls by 10 days a...
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ژورنال
عنوان ژورنال: BMC Neuroscience
سال: 2010
ISSN: 1471-2202
DOI: 10.1186/1471-2202-11-140