Repeated Long-Term Sub-concussion Impacts Induce Motor Dysfunction in Rats: A Potential Rodent Model.
beamwalk
mild traumatic brain injury
neuromotor function
rotarod
sub-concussion
Journal
Frontiers in neurology
ISSN: 1664-2295
Titre abrégé: Front Neurol
Pays: Switzerland
ID NLM: 101546899
Informations de publication
Date de publication:
2020
2020
Historique:
received:
21
02
2020
accepted:
05
05
2020
entrez:
18
6
2020
pubmed:
18
6
2020
medline:
18
6
2020
Statut:
epublish
Résumé
Whilst detrimental effects of repeated sub-concussive impacts on neurophysiological and behavioral function are increasingly reported, the underlying mechanisms are largely unknown. Here, we report that repeated sub-concussion with a light weight drop (25 g) in wild-type PVG rats for 2 weeks does not induce detectable neuromotor dysfunction assessed by beamwalk and rotarod tests. However, after 12 weeks of repeated sub-concussion, the rats exhibited moderate neuromotor dysfunction. This is the first study to demonstrate development of neuromotor dysfunction following multiple long-term sub-concussive impacts in rats. The outcomes may offer significant opportunity for future studies to understand the mechanisms of sub-concussion-induced neuropsychological changes.
Identifiants
pubmed: 32547485
doi: 10.3389/fneur.2020.00491
pmc: PMC7274030
doi:
Types de publication
Journal Article
Langues
eng
Pagination
491Informations de copyright
Copyright © 2020 Lavender, Rawlings, Warnock, McGonigle, Hiles-Murison, Nesbit, Lam, Hackett, Fitzgerald and Takechi.
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