Elevated gliadin antibody levels in individuals with schizophrenia
2013
AbstractObjectives. We aimed to replicate, in a larger sample and in a different geographical location, the previously reported elevation of anti-gliadin IgG antibodies in schizophrenia. Methods. A total of 950 adults with schizophrenia (severity assessed by PANSS) and 1000 healthy controls were recruited in the Munich metropolitan area. Anti-gliadin IgG antibodies were analyzed with ELISA. χ2-tests and logistic regression were used to analyze the association of schizophrenia with elevated anti-gliadin IgG. A multivariable general linear model was used to compare anti-gliadin IgG levels between patients and controls. Results. The odds ratio of having elevated anti-gliadin IgG antibodies in the schizophrenia group was 2.13 (95% CI 1.57 to 2.91, p < 0.0001). Mean anti-gliadin IgG levels were higher in schizophrenia patients (0.81 ± 0.79 vs. 0.52 ± 0.56, t = 9.529, df = 1,697, p < 0.0001) and the difference persisted after adjusting for potential confounders. Conclusions. Our study, limited by its cross sect...
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