期刊
NEUROPSYCHOPHARMACOLOGY
卷 26, 期 2, 页码 204-215出版社
NATURE PUBLISHING GROUP
DOI: 10.1016/S0893-133X(01)00360-8
关键词
prepulse inhibition; immune challenge; schizophrenia; antipsychotics; cytokines; rat
Increasing evidence associates schizophrenia with prenatal exposure to infection. Impaired ability to gateout sensory and cognitive information is considered to be a central feature of schizophrenia and is manifested, among others, in disrupted prepulse inhibition (PPI) of the acoustic startle reflex. We analyzed the effect of a prenatal immune challenge - peripheral administration of bacterial endotoxin lipopolysaccharide (LPS) to pregnant female rats - upon PPI and immune function in adult offspring. Prenatal LPS treatment disrupted PPI which was reversed by antipsychotics. Serum levels of interleukin-2 and interleukin-6 were increased. In addition, histopathological features in brain areas related with PPI circuitry were observed. These results illustrate the critical influence of prenatal immune events upon adult CNS functioning in association with the putative role of the immune system in the etiopathogenesis of schizophrenia. (C) 2002 American College of Neuropsychopharmacology. Published by Elsevier Science Inc.
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