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Schizophrenia: an integrative approach to modelling a complex disorder.
George S Robertson1, Sarah E Hori, Kelly J Powell
1Department of Psychiatry, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada. george.robertson@dal.ca
Journal of Psychiatry & Neuroscience : JPN
|May 16, 2006
Summary
Schizophrenia research advances with new mouse models that combine genetic and environmental factors. Olfactory tests may reveal new treatments for cognitive deficits in this complex mental illness.
Area of Science:
- Neuroscience
- Psychiatry
- Genetics
Background:
- Schizophrenia is a complex mental disorder with genetic and environmental influences.
- Candidate genes and disrupted biochemical processes are implicated in schizophrenia.
- Obstetrical complications and viral infections are linked to schizophrenia risk.
Purpose of the Study:
- To review strategies for improved animal modeling of schizophrenia.
- To integrate genetic and environmental factors in schizophrenia models using a "two-hit hypothesis."
- To propose olfactory-based cognitive tests for therapeutic development.
Main Methods:
- Reviewing existing research on schizophrenia candidate genes and mouse models.
- Discussing strategies for manipulating mouse models to incorporate environmental factors.
- Analyzing the cognitive capabilities of rodents, particularly their reliance on olfactory cues.
Main Results:
- Mice with altered genes related to synaptic plasticity, neurotransmission, and neuronal development exhibit schizophrenia-like features.
- Environmental factors can be modeled in animals to mimic schizophrenia's predisposing events.
- Rodents excel at olfactory-based cognitive tasks.
Conclusions:
- Integrated genetic and environmental mouse models are crucial for understanding schizophrenia.
- Olfactory-based cognitive assessments are promising for identifying novel schizophrenia therapeutics.
- Further research is needed to develop comprehensive animal models for schizophrenia.