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Related Concept Videos

Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.

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Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
09:33

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

Global white matter abnormalities in schizophrenia: a multisite diffusion tensor imaging study.

Tonya White1, Vincent A Magnotta, H Jeremy Bockholt

  • 1Department of Child and Adolescent Psychiatry, Erasmus University, 3000 CB Rotterdam, the Netherlands. t.white@erasmusmc.nl

Schizophrenia Bulletin
|September 23, 2009
PubMed
Summary
This summary is machine-generated.

White matter abnormalities are present in chronic schizophrenia but not in first-episode patients, suggesting progressive changes in brain white matter integrity over time.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Medical Imaging

Background:

  • Schizophrenia pathophysiology involves white matter (WM) abnormalities, but findings vary.
  • Existing studies show heterogeneity in WM abnormalities in schizophrenia patients.
  • WM integrity in first-episode (FE) and chronic schizophrenia requires further investigation.

Purpose of the Study:

  • To evaluate WM integrity in a large sample of FE and chronic schizophrenia patients.
  • To compare WM integrity between schizophrenia patients and matched controls.
  • To determine if WM abnormalities are early or develop over time in schizophrenia.

Main Methods:

  • 114 schizophrenia patients (31 FE, 83 chronic) and 138 controls were recruited.
  • High-resolution structural and diffusion tensor imaging (DTI) were performed.
  • Fractional anisotropy (FA) was calculated for cortical lobes, cerebellum, and brain stem.

Main Results:

  • Lower FA was observed in schizophrenia patients compared to controls across the whole brain and in major lobes.
  • No significant FA differences were found in the brain stem or cerebellum.
  • FA differences were significant in chronic schizophrenia patients but not in the FE group.

Conclusions:

  • Global WM microstructure differences were found in chronic schizophrenia, not FE schizophrenia.
  • These findings suggest that white matter alterations may be progressive in schizophrenia.
  • WM integrity is compromised in later stages of schizophrenia, indicating disease progression.