PT - JOURNAL ARTICLE AU - Meyer, Urs AU - Nyffeler, Myriel AU - Engler, Andrea AU - Urwyler, Adrian AU - Schedlowski, Manfred AU - Knuesel, Irene AU - Yee, Benjamin K. AU - Feldon, Joram TI - The Time of Prenatal Immune Challenge Determines the Specificity of Inflammation-Mediated Brain and Behavioral Pathology AID - 10.1523/JNEUROSCI.0099-06.2006 DP - 2006 May 03 TA - The Journal of Neuroscience PG - 4752--4762 VI - 26 IP - 18 4099 - http://www.jneurosci.org/content/26/18/4752.short 4100 - http://www.jneurosci.org/content/26/18/4752.full SO - J. Neurosci.2006 May 03; 26 AB - Disturbance to early brain development is implicated in several neuropsychiatric disorders including autism, schizophrenia, and mental retardation. Epidemiological studies have indicated that the risk of developing these disorders is enhanced by prenatal maternal infection, presumably as a result of neurodevelopmental defects triggered by cytokine-related inflammatory events. Here, we demonstrate that the effects of maternal immune challenge between middle and late gestation periods in mice are dissociable in terms of fetal brain cytokine responses to maternal inflammation and the pathological consequences in brain and behavior. Specifically, the relative expression of pro- and anti-inflammatory cytokines in the fetal brains in response to maternal immune challenge may be an important determinant among other developmental factors for the precise pathological profile emerging in later life. Thus, the middle and late gestation periods correspond to two windows with differing vulnerability to adult behavioral dysfunction, brain neuropathology in early adolescence, and of the acute cytokine responses in the fetal brain.