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Dorsolateral prefrontal cortex morphology and short-term outcome in first-episode schizophrenia

Konasale M R Prasad1, Sarah D Sahni, Brian R Rohm

  • 1Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.

Psychiatry Research
|November 1, 2005
PubMed

Insights

Brain imaging of the dorsolateral prefrontal cortex (DLPFC) in antipsychotic-naive schizophrenia patients predicted short-term functional outcomes. Left DLPFC volume was associated with better outcomes one year after treatment.

Area of Science:

  • Neuroimaging
  • Psychiatry
  • Schizophrenia Research

Background:

  • Clinical factors are known predictors of schizophrenia outcomes.
  • Neurobiological predictors, particularly structural brain changes, are less understood.
  • Investigating brain morphology may reveal novel outcome predictors.

Purpose of the Study:

  • To assess the predictive value of dorsolateral prefrontal cortex (DLPFC) morphology on short-term functional outcomes in first-episode schizophrenia.
  • To explore the relationship between baseline DLPFC volume and functional recovery in antipsychotic-naive patients.

Main Methods:

  • Structural magnetic resonance imaging (MRI) was used to measure DLPFC volume in 27 antipsychotic-naive patients with first-episode schizophrenia or schizoaffective disorder.
  • Functional outcome was assessed using the Strauss-Carpenter Scale at 1 and 2 years.
  • Statistical analysis examined the correlation between baseline DLPFC volume and functional outcome measures.

Main Results:

  • Baseline left DLPFC volume significantly predicted functional outcome at the 1-year follow-up.
  • This predictive relationship was not observed at the 2-year follow-up.
  • The findings suggest a potential role for left DLPFC structure in early functional recovery.

Conclusions:

  • Left DLPFC morphology, assessed via MRI, is a potential neurobiological predictor of short-term functional outcome in early schizophrenia.
  • Cognitive functions associated with the left DLPFC may be crucial for initial functional recovery in schizophrenia.
  • Further research is warranted to explore the longitudinal predictive power and underlying mechanisms.

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