期刊
SCHIZOPHRENIA BULLETIN
卷 34, 期 6, 页码 1083-1094出版社
OXFORD UNIV PRESS
DOI: 10.1093/schbul/sbn080
关键词
schizophrenia; obstetric complications; gene-environment interaction; covariation; hypoxia; infection; stress; rGE; G x E
类别
资金
- National Institute of Mental Health [MH52857]
- National Center for Research Resources [U54 RR021813, RR013642]
- UCLA Foundation
While genetic factors account for a significant proportion of liability to schizophrenia, a body of evidence attests to a significant environmental contribution. Understanding the mechanisms through which genetic and environmental factors coalesce in influencing schizophrenia is critical for elucidating the pathways underlying psychotic illness and for developing primary prevention strategies. Although obstetric complications (OCs) remain among the most well-documented environmental indicators of risk for schizophrenia, the pathogenic role they play in the etiology of schizophrenia continues to remain poorly understood. A question of major importance is do these factors result from a genetic diathesis to schizophrenia (as in gene-environment covariation), act additively or interactively with predisposing genes for the disorder in influencing disease risk, or independently cause disease onset? In this review, we evaluate 3 classes of OCs commonly related to schizophrenia including hypoxia-associated OCs, maternal infection during pregnancy, and maternal stress during pregnancy. In addition, we discuss several mechanisms by which OCs impact on genetically susceptible brain regions, increasing constitutional vulnerability to neuromaturational events and stressors later in life (ie, adolescence), which may in turn contribute to triggering psychosis.
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