http://orcid.org/0000-0002-8122-3446
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ABSTRACT
Purpose: Recent studies have linked infectious agents such as Toxoplasma gondii to schizophrenia. We investigated the seroprevalence of T. gondii and conducted ophthalmologic examinations in schizophrenia patients and controls to identify lesions suggestive of ocular toxoplasmosis.
Methods: During 2015 and 2016, 34 schizophrenia patients and 85 healthy controls underwent ophthalmologic examination and anti-T. gondii IgG and IgM antibody measurements by chemiluminescence.
Results: Schizophrenia patients had a higher prevalence of anti-T. gondii IgG positivity than controls (91.18% [95% confidence interval (CI), 77.04%–96.95%] vs. 70.59% [95% CI, 60.18%–79.21%]; p = 0.017). Anti-T. gondii IgM antibodies (acute form) were not detected in any patient. One (3%) schizophrenic patient and two (2.4%) control patients presented fundoscopic scarring.
Conclusion: The seropositivity rate was significantly higher among schizophrenia patients than among controls (p = 0.017). There was no association between the presence of fundoscopic scarring and schizophrenia (p = 1.000).
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Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.