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Perinatal complications and reduced size of brain limbic structures in familial schizophrenia
L E DeLisi1, I D Dauphinais, E S Gershon
1Dept. of Psychiatry, SUNY, Stony Brook 11794.
Insights
Perinatal complications may increase schizophrenia risk, especially in genetically vulnerable individuals. This study investigates if these complications cause temporal lobe brain differences seen in schizophrenia patients.
Area of Science:
- Neuroscience
- Psychiatry
- Genetics
Background:
- Schizophrenia involves both genetic and nongenetic risk factors.
- Perinatal complications are suspected contributors to schizophrenia development, particularly in genetically predisposed individuals.
- Reduced temporal lobe brain tissue is observed in schizophrenia patients, but its link to perinatal insults is unclear.
Purpose of the Study:
- To investigate whether perinatal complications contribute to the temporal lobe structural differences observed in individuals with schizophrenia.
- To examine the relationship between perinatal insults and brain abnormalities in siblings with schizophrenia.
Main Methods:
- Analysis of magnetic resonance imaging (MRI) scans.
- Comparison of brain structure in siblings discordant for schizophrenia.
Main Results:
- Initial analyses are presented, focusing on MRI data from siblings with schizophrenia.
- The study aims to determine if observed brain differences are a consequence of perinatal insults.
Conclusions:
- Further research is needed to elucidate the causal relationship between perinatal complications and brain structural changes in schizophrenia.
- Understanding these links could inform early intervention strategies for schizophrenia.
Abstract:
Both genetic and nongenetic risk factors for schizophrenia have been described. Specifically, perinatal complications have been suggested as a factor in the later development of schizophrenia. These appear to be increased among schizophrenic patients with a clear genetic vulnerability for illness. While reduced brain tissue localized to the temporal lobe is also present in these individuals, it is unknown whether brain structural differences are a consequence of perinatal insults to the developing brain. Initial analyses on magnetic resonance imaging scans from siblings with schizophrenia are presented in an attempt to examine this issue.