Effects of prenatal immune activation on amphetamine-induced addictive behaviors: Contributions from animal models.
Prog Neuropsychopharmacol Biol Psychiatry
; 63: 63-9, 2015 Dec 03.
Article
en En
| MEDLINE
| ID: mdl-26051209
ABSTRACT
BACKGROUND:
Prenatal environmental adversities may affect brain development and are associated with increased risk for schizophrenia, an illness with 50% comorbidity with addiction. Maternal immune activation by poly-inosinic-citidilic acid (Poly(IC)) exposure can promote behavioral alterations consistent with schizophrenia symptoms in rodents.OBJECTIVES:
Considering the vulnerability to addiction in patients with schizophrenia, we evaluated the interactions between prenatal Poly(IC) administration and addiction in two animal models (behavioral sensitization and conditioned place preference - CPP) in mice repeatedly treated with amphetamine (AMP). Additionally, stereotyped behavior and cross-sensitization with cocaine (COC) were also investigated.METHODS:
Swiss male mice offspring were submitted to prenatal administration of 5mg/kg Poly(IC) in the 9(th) day of pregnancy. At the age of 90days, mice were treated with 2.5mg/kg AMP for 9days to evaluate behavioral sensitization or stereotyped behavior. Cross-sensitization with 10mg/kg COC was evaluated 24h after the last treatment day. For AMP-induced CPP evaluation, mice were treated during 8 consecutive days.RESULTS:
Prenatal Poly(IC) administration potentiated both AMP-induced behavioral sensitization and CPP. Furthermore, Poly(IC) increased cross-sensitization with COC.CONCLUSIONS:
Prenatal administration of Poly(IC) is able to potentiate vulnerability to addiction in two animal models, without however modulating stereotyped behavior.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Efectos Tardíos de la Exposición Prenatal
/
Poli I-C
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Trastornos Relacionados con Anfetaminas
/
Conducta Exploratoria
Tipo de estudio:
Prognostic_studies
Límite:
Animals
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Pregnancy
Idioma:
En
Revista:
Prog Neuropsychopharmacol Biol Psychiatry
Año:
2015
Tipo del documento:
Article
País de afiliación:
Brasil