Association between markers of inflammation and indicators of systemic endotoxemia in endogenous psychosis

INTRODUCTION: The clinical and biological studies indicate the involvement of inflammation in the pathogenesis of endogenous mental disorders. The inflammation markers leukocyte elastase, α1-proteinase inhibitor, and autoantibodies to neuroantigens reflect the severity of the pathological process in the brain. Systemic endotoxemia is a pathological process caused by an excess of endotoxins in the systemic circulation, can be considered as one of the components of the inflammatory process in endogenous psychosis. OBJECTIVES: To evaluate the association between systemic inflammation markers and indicators of systemic endotoxemia in patients with endogenous psychosis. METHODS: The study included 25 patients aged 23-49 with endogenous psychoses (F20, F25) and 25 healthy people. The severity of symptoms was assessed using PANSS. We detected the activity of leukocyte elastase and a1-proteinase inhibitor, antibodies to neuroantigens, endotoxin (ET) concentration, and antibodies to endotoxin (aEТ) in serum. RESULTS: In 24% of cases, an increase of inflammation markers activity, ET concentration, and aET deficiency were observed (p<0.05), which is an unfavorable factor that aggravates the clinical course of the disease. In 76% of cases, ET concentration remained within control values (p>0.05) but associated with different levels of aET, which is likely to be a consequence of previous endotoxin aggression. There were correlations between ET concentration and antibodies to neuroantigens S-100B and MBP. We also revealed the association between the activity of the inflammatory marker with the severity of clinical symptoms in patients. CONCLUSIONS: Results suggest the relationship between systemic inflammation markers and indicators of systemic endotoxemia and their involvement in the pathogenesis of endogenous psychosis. DISCLOSURE: No significant relationships.