Abstract
Aim. To determine the level of lipopolysaccharide-binding protein (LBP) in acute intestinal infection, depending on the etiology and severity of the disease, and the effect of interleukin (IL)-1 and IL-10 levels on the expression of LBP.
 Methods. Serum samples of 62 patients were assayed by solid phase enzyme-linked immunosorbent assay using a set of reagents ELISA (USA) and Vector-best (Novosibirsk) for levels of LBР, IL-1, IL-10. The first group included 33 patients with bacterial intestinal infection, the second group consisted of 29 patients with viral diarrhea, and the control group comprised 20 conditionally healthy patients. Analyses were performed using Microsoft Excel 2010 and Statistica version 6.0 software. Statistical differences were determined by using the MannWhitney U Test, the p-value 0.05 were regarded as statistically significant. Spearmans correlation coefficient was used to examine relationships. ShapiroWilk W test was used to check for normal distribution of the features.
 Results. We detected the presence of LBP in all the studied groups, with the content of LBP was significantly increased in the group of bacterial intestinal infections compared with other groups. With regard to disease severity, LBP level was the highest for mild acute intestinal infections caused by bacteria, and for viral diarrhea, fluctuations in LBP did not exceed the norm. In intestinal infections caused by bacteria, the levels of LBP were directly related to the levels of IL-1 and IL-10.
 Conclusion. Detection of LBP concentration can be used for the initial differential diagnosis of intestinal infections caused by bacteria, which would significantly narrow the diagnostic search and determine the tactics of etiotropic therapy; also, considering the relationship between the concentration of LBP and disease severity, this indicator can be used as a predictive sign of the course of the disease.
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