[Palivizumab: four seasons in Russia].

In 2010, the Russian Federation (RF) registered palivizumab--innovative drug, based on monoclonal antibodies for passive immunization of seasonal respiratory syncytial virus (RSV) infection in children of disease severe progress risk group, which include primarily premature infants, children with bronchopulmonary dysplasia and hemodynamically significant congenital heart disease. Currently, palivizumab is included in the list of recommended medicines and medical care standards of different countries, including Russia. In the review the results of Russian research on the progress of RSV infection, its epidemiology and immunization experience gained over the 2010-2014 period are summarized in relation to the foreign data. During the four epidemic seasons palivizumab immunization covered more than 3,200 children of severe RSV infection risk group with a progressive annual increase in the number of patients who received the drug. Geography of palivizumab immunization is also greatly expanded in our country during this time. If during the first two seasons measures of immunization were taken mainly in Moscow and St. Petersburg, at the present time, thirty one territorial entities of the Russian Federation have the experience in the drug application. Analysis of the results of RSV infection immunization (made in several regions) confirms the high clinical efficacy and palivizumab safety already demonstrated in international studies. In addition, the analysis presents the potential to improve the efficiency of the integrated RSV infection immunization programs, realizing in the establishment of high-risk child group register, adequate counseling for parents, as well as the development of the routing of patients and coordination of interaction between different health institutions during the immunization.

[Quantitative characteristics and specific features of the echographic pattern of the liver and biliary area in opisthorchiasis of a hyperendemic focus].

One hundred and twenty-three patients from a hyperendemic focus underwent ultrasound study. The anteroposterior size of the liver, the thickness of the wall of the gallbladder and the nature of its contents, the diameter of common bile ducts and portal vein, additional morphological changes in the architectonics of the liver and biliary ducts were determined. Examinations have established that ultrasound study is a technique determining the characteristic signs that are pathognomic to moderate and severe invasions--cholangiectases (predominant localization in the second segment of the liver), a significant increase in the anterioposterior size of the liver and an change in the parenchyma of the organ, the thickening of the wall of the gallbladder, an change in its content (at the expense of sediments, flocculi, waxes, and concretions), and an increase in the size of the intrahepatic and common bile ducts.

Mass spectrometric detection of the amino acid sequence polymorphism of the hepatitis C virus antigen.

A method for detection and identification of the hepatitis C virus antigen (HCVcoreAg) in human serum with consideration for possible amino acid substitutions is proposed. The method is based on a combination of biospecific capturing and concentrating of the target protein on the surface of the chip for atomic force microscope (AFM chip) with subsequent protein identification by tandem mass spectrometric (MS/MS) analysis. Biospecific AFM-capturing of viral particles containing HCVcoreAg from serum samples was performed by use of AFM chips with monoclonal antibodies (anti-HCVcore) covalently immobilized on the surface. Biospecific complexes were registered and counted by AFM. Further MS/MS analysis allowed to reliably identify the HCVcoreAg in the complexes formed on the AFM chip surface. Analysis of MS/MS spectra, with the account taken of the possible polymorphisms in the amino acid sequence of the HCVcoreAg, enabled us to increase the number of identified peptides.

[Atomic force microscopy fishing of gp120 on immobilized aptamer and its mass spectrometry identification].

A method of atomic force microscopy-based fishing (AFM fishing) has been developed for protein detection in the analyte solution using a chip with an immobilized aptamer. This method is based on the biospecific fishing of a target protein from a bulk solution onto the small AFM chip area with the immobilized aptamer to this protein used as the molecular probe. Such aptamer-based approach allows to increase an AFM image contrast compared to the antibody-based approach. Mass spectrometry analysis used after the biospecific fishing to identify the target protein on the AFM chip has proved complex formation. Use of the AFM chip with the immobilized aptamer avoids interference of the antibody and target protein peaks in a mass spectrum.

[The prevalence of gout and hyperuricemia among the workers of a meat-packing plant complex]. / Rasprostranennost' podagry i giperurikemii sredi rabotnikov miasopererabatyvaiushchego kompleksa.

An attempt was made to study the incidence of gout and hyperuricemia among the workers of the Moscow meat-packing plant exposed to high food purine loads. Using extensive clinical material (535 men and 1121 women) the authors established that gout was diagnosed 33 times more often in men of this plant than in the muscular population of other towns of the country. Moderate hyperuricemia was revealed in every second of the examinees. Marked hyperuricemia was noted 1.8 times more often, it being 3.4 times more often in men working at this plant as compared to the whole muscular population of the country. There was a direct dependence of the level of hyperuricemia in men working in this industry on their service record. The levels of moderate hyperuricemia in all groups of men and in some groups of women directly depended on the amount of daily purine loads. Marked hyperuricemia among the examined men is a factor of risk in the development of load and among the examined women an indicator of risk (i. e. warning) of possible metabolic changes which require an adequate dietetic and therapeutic correction.