Prenatal infection and exposure to traumatizing experiences during peripuberty have each been associated with increased risk for neuropsychiatric disorders. Evidence is lacking for the cumulative impact of such prenatal and postnatal environmental challenges on brain functions and vulnerability to psychiatric disease. Here, we show in a translational mouse model that combined exposure to prenatal immune challenge and peripubertal stress induces synergistic pathological effects on adult behavioral functions and neurochemistry. We further demonstrate that the prenatal insult markedly increases the vulnerability of the pubescent offspring to brain immune changes in response to stress. Our findings reveal interactions between two adverse environmental factors that have individually been associated with neuropsychiatric disease and support theories that mental illnesses with delayed onsets involve multiple environmental hits.

Stress in Puberty Unmasks Latent Neuropathological Consequences of Prenatal Immune Activation in Mice / S. Giovanoli, H. Engler, A. Engler, J. Richetto, M. Voget, R. Willi, C. Winter, M.A. Riva, P.B. Mortensen, M. Schedlowski, U. Meyer. - In: SCIENCE. - ISSN 0036-8075. - 339:6123(2013 Mar 01), pp. 1095-1099. [10.1126/science.1228261]

Stress in Puberty Unmasks Latent Neuropathological Consequences of Prenatal Immune Activation in Mice

J. Richetto;M.A. Riva;
2013

Abstract

Prenatal infection and exposure to traumatizing experiences during peripuberty have each been associated with increased risk for neuropsychiatric disorders. Evidence is lacking for the cumulative impact of such prenatal and postnatal environmental challenges on brain functions and vulnerability to psychiatric disease. Here, we show in a translational mouse model that combined exposure to prenatal immune challenge and peripubertal stress induces synergistic pathological effects on adult behavioral functions and neurochemistry. We further demonstrate that the prenatal insult markedly increases the vulnerability of the pubescent offspring to brain immune changes in response to stress. Our findings reveal interactions between two adverse environmental factors that have individually been associated with neuropsychiatric disease and support theories that mental illnesses with delayed onsets involve multiple environmental hits.
CHILDHOOD ADVERSITIES ; PSYCHIATRIC-DISORDERS ; SCHIZOPHRENIA ; RISK ; EXPOSURE ; AUTISM ; VULNERABILITY ; HYPOTHESIS ; PHYSIOLOGY ; RESPONSES
Settore BIO/14 - Farmacologia
1-mar-2013
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/219638
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