Involvement of NR1, NR2A different expression in brain regions in anxiety-like behavior of prenatally stressed offspring. 2013

Hongli Sun, and Ning Jia, and Lixia Guan, and Qing Su, and Dan Wang, and Hui Li, and Zhongliang Zhu
Department of Pharmacology, College of Medicine, Xi'an Jiaotong University, Shaanxi 710061, China.

Prenatal stress (PS) has been shown to be associated with anxiety. However, the underlying neurological mechanisms are not well understood. To determine the effects of PS on anxiety-like behavior in the adult offspring, we evaluated anxiety-like behavior using open field test (OFT) and elevated plus maze (EPM) in the 3-month offspring. Both male and female offspring showed a significant reduction of crossing counts in the center, total crossing counts, rearing counts and time spent in the center in the OFT, and only male offspring showed a decreased percentage of open-arm entries and open-arm time in open arms in the EPM. Additionally, expression of NR1 and NR2A subunit of N-methyl-D-aspartate receptor (NMDAR) in the hippocampus (HIP), prefrontal cortex (PFC) and striatum (STR) was studied. Our results showed that PS reduced NR1 and NR2A expression in the HIP, NR2A expression in the PFC and STR in the offspring. The altered NR1 and NR2A could have potential impact on anxiety-like behavior in the adult offspring exposed to PS.

UI MeSH Term Description Entries
D008297 Male Males
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011297 Prenatal Exposure Delayed Effects The consequences of exposing the FETUS in utero to certain factors, such as NUTRITION PHYSIOLOGICAL PHENOMENA; PHYSIOLOGICAL STRESS; DRUGS; RADIATION; and other physical or chemical factors. These consequences are observed later in the offspring after BIRTH. Delayed Effects, Prenatal Exposure,Late Effects, Prenatal Exposure
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D005106 Exploratory Behavior The tendency to explore or investigate a novel environment. It is considered a motivation not clearly distinguishable from curiosity. Curiosity,Novelty-Seeking Behavior,Behavior, Exploratory,Behavior, Novelty-Seeking,Behaviors, Exploratory,Behaviors, Novelty-Seeking,Curiosities,Exploratory Behaviors,Novelty Seeking Behavior,Novelty-Seeking Behaviors
D005260 Female Females
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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