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. 2006 Apr;32(2):396-400.
doi: 10.1093/schbul/sbi054. Epub 2005 Sep 15.

Deficit schizophrenia: association with serum antibodies to cytomegalovirus

Faith Dickerson  1 , Brian Kirkpatrick, John Boronow, Cassie Stallings, Andrea Origoni, Robert Yolken
Affiliations

Deficit schizophrenia: association with serum antibodies to cytomegalovirus

Faith Dickerson et al. Schizophr Bull. 2006 Apr.

Abstract

Background: Patients with deficit schizophrenia differ from nondeficit patients with schizophrenia relative to several neurobiological correlates and relative to the risk factors of family history and season of birth. Exposure to human herpesviruses is a possible risk factor for schizophrenia. We hypothesized that there would be deficit/nondeficit difference in the prevalence of serum antibodies to human herpesviruses.

Methods: In deficit (N = 88) and nondeficit (N = 235) schizophrenia patients, we measured IgG class antibodies to the 6 known human herpesviruses: herpes simplex virus type 1, herpes simplex virus type 2, cytomegalovirus, Epstein-Barr virus, human herpes virus 6, and varicella-zoster virus.

Results: Deficit categorization was associated with the presence of serum antibodies to cytomegalovirus (odds ratio = 2.01, p = .006). This association remained significant after covarying for positive psychotic symptoms and demographic features known to be associated with cytomegalovirus seropositivity and after correcting for multiple comparisons. An association between herpes simplex virus type 1 and deficit status was not significant after covarying for potentially confounding variables. No other human herpesvirus was significantly associated with deficit versus nondeficit categorization.

Conclusions: The association between deficit schizophrenia and cytomegalovirus antibody seropositivity provides further evidence for differences in etiopathophysiology between deficit and nondeficit schizophrenia.

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