Article ; Online: Pre- and post-synaptic roles of action potential activity in synapse elimination revealed by using ectopic neuromuscular junction formation by a foreign nerve.
2020 Volume 722, Page(s) 134835
Abstract: The formation of the neuromuscular junction (nmj) is based on molecular cascades initiated by neural agrin as well as electrical activity in the neuromuscular structures. This review focuses on the latter factor, emphasizing the multiplicity of its ... ...
Abstract | The formation of the neuromuscular junction (nmj) is based on molecular cascades initiated by neural agrin as well as electrical activity in the neuromuscular structures. This review focuses on the latter factor, emphasizing the multiplicity of its mechanisms in the process of synapse elimination following initial polyneuronal innervation. Pre- and post-synaptic components of activity have in fact been identified through experiments on an adult model of nmj formation: ectopic reinnervation of the rat soleus muscle by the fibular nerve. Two activity-dependent elimination processes are thus compared: competition between distributed nmjs, which depends on evoked muscle impulse activity, and competition between axons converging on single nmjs, which instead depends on differences in the timing of impulses in the converging axons. |
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MeSH term(s) | Action Potentials/physiology ; Animals ; Choristoma/physiopathology ; Humans ; Muscle Fibers, Skeletal/physiology ; Muscle, Skeletal/innervation ; Muscle, Skeletal/physiology ; Neuromuscular Junction/physiology ; Synapses/physiology |
Language | English |
Publishing date | 2020-02-10 |
Publishing country | Ireland |
Document type | Journal Article ; Review |
ZDB-ID | 194929-9 |
ISSN | 1872-7972 ; 0304-3940 |
ISSN (online) | 1872-7972 |
ISSN | 0304-3940 |
DOI | 10.1016/j.neulet.2020.134835 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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