[Impact of small molecules on intermolecular interactions underlying the ligand technologies in laboratory diagnosis].

Hydrogen peroxide has been found to have a distorting effect on the quality of determination of the serological markers of hepatitis B and C, transglutaminase antibodies: an increase in the percent of false higher (anti-HBsAg, HBeAg, anti-HCV) and false lower (anti-HBeAg) values, and on the results of PCR-based diagnosis (PCR inhibition that was more pronounced especially in low viremia). A possibility of interference of measurement results in the blood metabolite pool should be taken into account in the use of high-technology methods of laboratory analysis. In particular, there may be changes in the detection of immunological and molecular biological methods in hyperpyruvatemia and hyperoxaloacetatemia, with elevated peroxide concentrations during pathological processes.