國家衛生研究院 NHRI:Item 3990099045/6187

NHRI > Center for Neuropsychiatric Research > Hsien-Yi Sabrina Wang(2005-2010) > Periodical Articles > Item 3990099045/6187

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/6187

Title:	Prenatal lipopolysaccharide exposure increases anxiety-like behaviors and enhances stress-induced corticosterone responses in adult rats
Authors:	Lin, YL;Lin, SY;Wang, S
Contributors:	Division of Mental Health and Addiction Medicine;Center for Nanomedicine Research
Abstract:	Maternal infection during pregnancy may affect fetal brain development and lead to neurological and mental disorders. Previously, we used lipopolysaccharide [LPS, 33mug/kg, intraperitoneal injection] exposure on gestation day 10.5 to mimic maternal bacterial infection in rats and found reduced dopaminergic and serotoninergic neurons in the offspring. In the present study, we examined the anxiety and stress responses of the affected offspring and the neurophysiological changes in their brains. Our results show that LPS rats displayed more anxiety-like behaviors and heightened stress responses. Dopamine (DA) in the nucleus accumbens and serotonin (5-HT) in the medial prefrontal cortex and the hippocampus were significantly reduced in LPS rats. Their glucocorticoid receptors in the dorsal hippocampus and the 5-HT(1A) receptors in the dorsal and ventral hippocampus were also reduced. In addition, chronic but not acute fluoxetine treatment reversed the behavioral changes and increased hippocampal 5-HT(1A) receptor expression. This study demonstrates that LPS exposure during a critical time of embryonic development could produce long-term reduction of DA and 5-HT and other neurophysiological changes; such alterations may be associated with the increases in stress response and anxiety-like behaviors in the offspring.
Date:	2012-03
Relation:	Brain Behavior and Immunity. 2012 Mar;26(3):459-468.
Link to:	http://dx.doi.org/10.1016/j.bbi.2011.12.003
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0889-1591&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000301332000013
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84857191447
Appears in Collections:	[Hsien-Yi Sabrina Wang(2005-2010)] Periodical Articles [Shu-Yi Lin] Periodical Articles

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