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Toxoplasma gondii and cognitive deficits in schizophrenia: an animal model perspective

Geetha Kannan1, Mikhail V Pletnikov

  • 1Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Schizophrenia Bulletin
|September 4, 2012
PubMed

Insights

Toxoplasma gondii (T. gondii) infection is linked to cognitive deficits in schizophrenia. This review examines T. gondii's impact on cognition and analyzes animal models to understand the underlying mechanisms.

Area of Science:

  • Neuroscience
  • Infectious Diseases
  • Psychiatry

Background:

  • Cognitive deficits are a primary symptom of schizophrenia.
  • Epidemiological studies suggest a link between microbial pathogens and cognitive impairment in schizophrenia patients.
  • Toxoplasma gondii (T. gondii) exposure has been associated with human cognitive deficits, but the mechanisms are unclear.

Purpose of the Study:

  • To review the association between T. gondii infection and cognitive impairment.
  • To critically analyze rodent models used to study T. gondii-induced cognitive deficits.
  • To explore potential mechanisms by which T. gondii influences cognitive function.

Main Methods:

  • Literature review of T. gondii infection and cognitive impairment.
  • Analysis of existing rodent models for T. gondii-induced cognitive dysfunction.
  • Exploration of biological pathways affected by T. gondii.

Main Results:

  • T. gondii infection is frequently associated with cognitive deficits.
  • Rodent models offer valuable insights into T. gondii's effects on cognition.
  • Parasite-induced alterations in neurotransmission and neuroinflammation are potential mechanisms.

Conclusions:

  • T. gondii is a potential contributor to cognitive deficits in schizophrenia.
  • Further research using animal models is crucial for understanding T. gondii's neurobiological impact.
  • Investigating T. gondii's mechanisms may reveal novel therapeutic targets for schizophrenia.

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