Borna disease virus and deficit schizophrenia

The association between Borna Disease Virus and schizophrenia: A systematic review and meta-analysis

INTRODUCTION

Schizophrenia is a disabling psychiatric disorder. The role of Borna Disease Virus (BDV) in the etiology of schizophrenia has been suggested by several studies. However, the existence of such association remained controversial. The present meta-analysis was conducted to evaluate this association.

METHOD

This systematic review and meta-analysis was conducted using preferred reporting items for systematic reviews and meta-analysis (PRISMA). Online databases including Scopus, PubMed, Science direct, Embase, PsycINFO, Web of Science and Google scholar search engine were searched until January 15, 2017. The heterogeneity of the studies was evaluated using Cochran's Q test and I² statistic. Finally, random effects model was used for combining the results using Stata software version 11.1.

RESULT

Overall, 30 studies containing 2533 cases and 4004 controls were included in the meta-analysis. The combined odds ratio (OR) for the relationship between BDV and schizophrenia was estimated to be 2.72 (95%CI: 1.75-4.20). This association based on RT-PCR, WB, IFA, EIA, RLA, ECLIA methods was estimated to be 3.83 (95%CI: 1.59-9.20), 4.99 (95%CI: 1.80-13.85), 1.27 (95%CI: 0.23-7.12), 2.26 (95%CI: 0.48-10.64), 1.67 (95%CI: 0.50-5.56) and 2.88 (95%CI: 1.38-6.01), respectively. Subgroup analysis according to WBC, serum and plasma samples was estimated to be 3.31 (95%CI: 1.19-9.25), 2.21 (95% CI: 1.17-4.17), 2.21 (95%CI: 1.03-4.73) and 7.89 (95%CI: 1.75-35.53), respectively.

CONCLUSION

The results indicated the role of BDV in the etiology of schizophrenia.

Failure to detect borna disease virus antibody and RNA from peripheral blood mononuclear cells of psychiatric patients

OBJECTIVE

Borna disease virus (BDV) is a highly neurotropic agent causing various neuropsychiatric symptoms in animals. Over the past two decades, it has been suggested that BDV might be associated with human psychiatric diseases. We aimed to investigate whether BDV is associated with psychiatric patients in Korea.

METHODS

We recruited 60 normal controls and 198 psychiatric patients (98 patients with depressive disorder, 60 with schizophrenia, and 40 with bipolar disorder). We used an indirect immunofluorescence antibody (IFA) test for the BDV antibody and a real-time reverse transcriptase polymerase chain reaction (rRT-PCR) assay for p24 and p40 RNA from peripheral blood mononuclear cells (PBMCs).

RESULTS

Neither the BDV antibody nor p24, p40 RNA was detected in controls and patients groups.

CONCLUSION

Our results suggest that BDV might not be associated with psychiatric patients in Korea.