Increased Dendritic Branching of and Reduced δ-GABA
CA1 hippocampus
GABAA receptor
delta
dendritic branching
interneurons
long-term potentiation
parvalbumin
puberty
Journal
Frontiers in cellular neuroscience
ISSN: 1662-5102
Titre abrégé: Front Cell Neurosci
Pays: Switzerland
ID NLM: 101477935
Informations de publication
Date de publication:
2020
2020
Historique:
received:
20
04
2020
accepted:
10
06
2020
entrez:
1
8
2020
pubmed:
1
8
2020
medline:
1
8
2020
Statut:
epublish
Résumé
Parvalbumin positive (PV+) interneurons play a pivotal role in cognition and are known to be regulated developmentally and by ovarian hormones. The onset of puberty represents the end of a period of optimal learning when impairments in synaptic plasticity are observed in the CA1 hippocampus of female mice. Therefore, we tested whether the synaptic inhibitory current generated by PV+ interneurons is increased at puberty and contributes to these deficits in synaptic plasticity. To this end, the spontaneous inhibitory postsynaptic current (sIPSC) was recorded using whole-cell patch-clamp techniques from CA1 pyramidal cells in the hippocampal slice before (PND 28-32) and after the onset of puberty in female mice (~PND 35-44, assessed by vaginal opening). sIPSC frequency and amplitude were significantly increased at puberty, but these measures were reduced by 1 μM DAMGO [1 μM, (D-Ala
Identifiants
pubmed: 32733208
doi: 10.3389/fncel.2020.00203
pmc: PMC7363981
doi:
Types de publication
Journal Article
Langues
eng
Pagination
203Subventions
Organisme : NIMH NIH HHS
ID : R01 MH100561
Pays : United States
Organisme : NIMH NIH HHS
ID : R01 MH115900
Pays : United States
Informations de copyright
Copyright © 2020 Shen, Kenney and Smith.
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