IL6 and psychotic disorder: Although, in a recent study, Delaney et al. [31] failed to find statistically significant differences in anti-LPS antibody levels between children, adolescents and young adults with psychosis, a population at ultra-high risk of psychosis, and healthy controls, they did find—for the psychosis group—a significant correlation between the increase in these antibodies and another well-established biomarker of psychosis, IL-6.