[Antiviral effect of «Kagocel» substance in vitro on influenza viruses H1N1, H1N1pdm09 and H3N2.]

INTRODUCTION

Active circulation of pandemic influenza and new variants of influenza H3N2 strains requires monitoring of antiviral efficacy of drugs permitted for influenza therapy in the Russian Federation.

PURPOSE

Assessment of antiviral efficacy of «Kagocel» substance against influenza viruses H1N1, H1N1pdm09 and H3N2 in vitro.

MATERIAL AND METHODS

Cytotoxic effect of «Kagocel» substance on MDCK cells had been determined by stained with MTS. Antiviral efficacy of «Kagocel» substance against influenza infection has been studied in vitro in the culture of MDCK cells infected with influenza virus strains: A/Puerto Rico/8/34 (H1N1), А/California/7/2009 (H1N1)pdm09, А/Hong Kong/1/68 (H3N2) and А/ Hong Kong/4801/2014 (H3N2). The antiviral activity of «Kagocel» substance was tested by its effect on the infectious titer of the influenza viruses and on its impact on the expression level of viral antigens in the enzyme immunoassay test system.

RESULTS

«Kagocel» substance had low toxicity for MDCK cells. «Kagocel» inhibited the infection titer of influenza virus strains A/Puerto Rico/8/34 (H1N1), А/California/7/2009 (H1N1)pdm09, А/Hong Kong/1/68 (H3N2) and А/ Hong Kong /4801/2014 (H3N2) in the MDCK cell culture with equal efficacy. Study of the impact of «Kagocel» substance on the expression level of viral antigens by ELISA also revealed its antiviral efficacy for all tested strains. Dose dependence was observed from concentration of substance and from infective dose of virus.

DISCUSSION

Effective suppression of the reproduction of influenza virus strains A(H1N1), A(Н1N1)pdm09 and A(H3N2) in the different sublines of MDCK cells with «Kagocel» was shown by the different methods. These results give the possibility to suggest that along with the ability to induce interferons, «Kagocel» can impact on the reproduction of influenza virus, but the further research is needed.

CONCLUSION

«Kagocel» substance effectively inhibits the reproduction of influenza virus strains A(H1N1), A(Н1N1)pdm09 and A(H3N2) in vitro. At the same time, the selectivity index is quite high.

Current legal issues of conducting a forensic medical examination of newborns' corpses

OBJECTIVE

Introduction: Forensic medical examination is a mandatory investigative action in determining the causes of death of newborns. It is especially significant and occupies a key place in proving the corpus deliciti. The aim is to study the current legal issues of a forensic medical examination of newborns' corpses.

PATIENTS AND METHODS

Materials and methods: The study of legal and literary sources was carried out. The library-semantic and the content analysis methods were applied.

CONCLUSION

Conclusions: Forensic medical examination should also include questions regarding the mother of the newborn: whether she was healthy at the time of delivery; if the medical staff caused any harm to her or her child; if she had the necessary help before and during the childbirth, etc. Examination should be appointed if one of the parents has the desire, which must be expressed in writing in the form of a motion.