Home-cage behavior in the Stargazer mutant mouse.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
27 07 2022
27 07 2022
Historique:
received:
25
02
2022
accepted:
19
07
2022
entrez:
27
7
2022
pubmed:
28
7
2022
medline:
30
7
2022
Statut:
epublish
Résumé
In many childhood-onset genetic epilepsies, seizures are accompanied by neurobehavioral impairments and motor disability. In the Stargazer mutant mouse, genetic disruptions of Cacng2 result in absence-like spike-wave seizures, cerebellar gait ataxia and vestibular dysfunction, which limit traditional approaches to behavioral phenotyping. Here, we combine videotracking and instrumented home-cage monitoring to resolve the neurobehavioral facets of the murine Stargazer syndrome. We find that despite their gait ataxia, stargazer mutants display horizontal hyperactivity and variable rates of repetitive circling behavior. While feeding rhythms, circadian or ultradian oscillations in activity are unchanged, mutants exhibit fragmented bouts of behaviorally defined "sleep", atypical licking dynamics and lowered sucrose preference. Mutants also display an attenuated response to visual and auditory home-cage perturbations, together with profound reductions in voluntary wheel-running. Our results reveal that the seizures and ataxia of Stargazer mutants occur in the context of a more pervasive behavioral syndrome with elements of encephalopathy, repetitive behavior and anhedonia. These findings expand our understanding of the function of Cacng2.
Identifiants
pubmed: 35896608
doi: 10.1038/s41598-022-17015-3
pii: 10.1038/s41598-022-17015-3
pmc: PMC9329369
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
12801Subventions
Organisme : NINDS NIH HHS
ID : K08 NS110924
Pays : United States
Organisme : NINDS NIH HHS
ID : 1K08NS110924
Pays : United States
Informations de copyright
© 2022. The Author(s).
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