To examine the relationship between cat ownership, exposure to T. gondii, and vulnerability to psychotic, depressive, and anxiety symptoms, highlighting its significance in mental health research.
Key Findings:
T. gondii seropositivity is associated with an increased risk of schizophrenia, with a pooled odds ratio of 1.81.
Higher rates of T. gondii antibodies are found in individuals with schizophrenia compared to controls, but evidence linking cat ownership directly to increased psychiatric risk is inconsistent and varies across studies.
Interpretation:
While T. gondii infection shows a significant association with psychotic disorders, the role of cat ownership as an independent risk factor is less clear and influenced by various factors, warranting further investigation.
Limitations:
Heterogeneity in diagnostic criteria and serological assays may lead to inconsistent findings, affecting the reliability of conclusions.
Some studies show null results when controlling for urbanicity and socioeconomic status, indicating the need for careful consideration of confounding variables.
Lack of a formal systematic review protocol or quantitative meta-analysis limits the comprehensiveness of the review.
Conclusion:
The review highlights the need for further research to clarify the mechanisms linking T. gondii to psychiatric disorders and the role of cat ownership in this context, emphasizing the importance of interdisciplinary approaches.
