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Related Experiment Videos

Decrease of serotonin receptor 2C in schizophrenia brains identified by high-resolution mRNA expression analysis.

Anja Castensson1, Lina Emilsson, Rolf Sundberg

  • 1Department of Evolutionary Biology, Uppsala University, Uppsala, Sweden

Biological Psychiatry
|December 4, 2003
PubMed
Summary

This study found two genes, monoamine oxidase B and serotonin receptor 2C, are differentially expressed in schizophrenia brains. Serotonin receptor 2C alterations are relevant for developing new antipsychotic drugs.

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Area of Science:

  • Neuroscience
  • Genetics
  • Pharmacology

Background:

  • RNA expression profiling aids in identifying disease susceptibility genes and drug targets.
  • Investigated messenger RNA expression of 16 candidate genes in 55 schizophrenia patients and 55 controls.
  • Largest sample size to date for identifying differentially expressed genes in schizophrenia brains.

Purpose of the Study:

  • To identify genes with altered expression in schizophrenia.
  • To explore potential genetic markers for schizophrenia development.
  • To evaluate candidate gene targets for novel drug development.

Main Methods:

  • Utilized sensitive real-time polymerase chain reaction methodology.
  • Employed a novel statistical approach, including a linear model of analysis of covariance.

Related Experiment Videos

  • Analyzed messenger RNA expression levels in brain samples.
  • Main Results:

    • Monoamine oxidase B expression was significantly increased in schizophrenia brains (p =.001).
    • Serotonin receptor 2C expression was significantly decreased in schizophrenia brains (p =.001).
    • Other previously proposed candidate genes showed no differential expression.

    Conclusions:

    • Differential expression of serotonin receptor 2C is significant for developing novel atypical antipsychotic medications.
    • The study's strategy is valuable for testing hypotheses on disease development.
    • Findings contribute to understanding schizophrenia pathogenesis.