Abstract
Maternal immune activation has been identified as a significant risk factor for schizophrenia. Using rodent models, past work has demonstrated various behavioral and brain impairments in offspring after immune-activating events. We applied 5 mg/kg of poly(I:C) on gestation day 9 to pregnant mouse dams, whose offspring were then stressed during puberty. We show impairments in attentional set-shifting in a T-maze, and a decreased number of parvalbumin-positive interneurons in the hippocampus as a result of peripubertal stress specifically in females.
Keywords:
Behavioral tests; Cognitive deficit; Immunochallenge; Interneurons; Maternal immune activation; Mouse; Poly(I:C); Prenatal infection; Schizophrenia.
Copyright © 2021 Elsevier B.V. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Attention / physiology*
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Behavior, Animal / physiology
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Cognitive Dysfunction / etiology
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Cognitive Dysfunction / pathology
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Cognitive Dysfunction / physiopathology*
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Disease Models, Animal
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Executive Function / physiology*
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Female
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Hippocampus / cytology
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Interneurons / cytology
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Male
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Mice
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Mice, Inbred C57BL
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Poly I-C / administration & dosage
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Pregnancy
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Pregnancy Complications, Infectious* / chemically induced
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Pregnancy Complications, Infectious* / immunology
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Prenatal Exposure Delayed Effects / chemically induced
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Prenatal Exposure Delayed Effects / pathology
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Prenatal Exposure Delayed Effects / physiopathology*
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Schizophrenia / etiology
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Schizophrenia / immunology
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Schizophrenia / pathology
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Schizophrenia / physiopathology*
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Stress, Psychological / complications
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Stress, Psychological / pathology
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Stress, Psychological / physiopathology*