Parvalbumin-positive GABAergic interneurons deficit in the hippocampus in Gunn rats: A possible hyperbilirubinemia-induced animal model of schizophrenia.
Anatomy
Biochemistry
Cell biology
Developmental biology
GABA
Gunn rat
Hyperbilirubinemia
Immunology
Molecular biology
Neuroscience
Parvalbumin
Schizophrenia
Journal
Heliyon
ISSN: 2405-8440
Titre abrégé: Heliyon
Pays: England
ID NLM: 101672560
Informations de publication
Date de publication:
Jul 2019
Jul 2019
Historique:
received:
28
09
2018
revised:
18
05
2019
accepted:
01
07
2019
entrez:
20
7
2019
pubmed:
20
7
2019
medline:
20
7
2019
Statut:
epublish
Résumé
A reduction of GABAergic markers in postmortem tissue is consistently found in schizophrenia. Importantly, these alterations in GABAergic neurons are not global, which means they are more prevalent among distinct subclasses of interneurons, including those that express the calcium binding protein parvalbumin. A decreased expression of parvalbumin in the hippocampus is a consistent observation not only in postmortem human schizophrenia patients, but also in a diverse number of rodent models of the disease. Meanwhile, previously we reported that the congenital hyperbilirubinemia model rats (Gunn rats), which is a mutant of the Wistar strain, showed behavioral abnormalities, for instance, hyperlocomotor activity, deficits of prepulse inhibition, inappropriate social interaction, impaired recognition memory similar with several rodent models of schizophrenia. Several animal studies linked the importance of palvalbumin in relation to abnormal hippocampal activity and schizophrenia-like behavior. Here, we show that parvalbumin positive cell density was significantly lower in the CA1, CA3 and the total hippocampus of Gunn rats (congenital hyperbilirubinemia model rats) compared to Wistar control rats. The correlations between serum UCB levels and loss of PV expression in the hippocampus were also detected. The decreases in the PV-expression in the hippocampus might suggest an association of the behavioral abnormalities as schizophrenia-like behaviors of Gunn rats, compared to the Wistar control rats.
Identifiants
pubmed: 31321330
doi: 10.1016/j.heliyon.2019.e02037
pii: S2405-8440(19)35697-X
pii: e02037
pmc: PMC6612903
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e02037Références
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