Prospects for the development of electronic commerce in Russia in the conditions of digital economy

E-commerce is a form of running business using information and communication technologies. E-commerce objects include not only traditional types of services and goods, but also informational ones. In general, the trends in e-commerce development in Russia can be regarded as positive. The ongoing coronavirus pandemic affects everything, including spending money and interaction of firms in the marketplace. Current trends indicate an acceleration in digitalization, both in the private and public sectors. Therefore, in the future, only the online seller will have success whose business will be digitized and optimized as much as possible. At the same time, the transition of firms and consumers to the electronic segment is associated with certain costs and risks. This aspect requires serious attention from both academic economists and authorities; competent, but not excessive, intervention is required. In this article, the authors reveal both the positive and negative aspects of running e-business from the point of view of sellers and buyers, and also offer their own views on the e-commerce market development in the context of mass digitalization accelerated due to the coronavirus crisis. Provided that the rate of Internet penetration in the regions remains at the same level, e-commerce in Russia will be able to maintain the current growth rate and realize its potential as an important trading platform for both domestic and foreign economic agents

Platelet microvesicles and their role in providing hemostatic capacity (literature review)

In recent years the role of microvesicles in endocrine system transmission, in providing cellular connectivity, in transportation of proteins and nucleic acids from one cell to another, in angiogenesis regulation, in inflammatory reactions and in dissemination of tumors is actively studied. This article reviews the mechanisms of microvesicle formation, the structure of microvesicles and their potential value as biomarkers. Among all essential reactions involving microvesicles one thing especially stands out: their direct participation in providing hemostatic reactions for bleeding control in case of a solution of continuity in blood vessels due to different reasons. Platelet microvesicles play an important role in this process, and it has been proved by several experimental and clinical studies. In this review we evaluate prospects for clinical use of one of modern blood components – cryoprecipitate – as the source of platelet microvesicles

Молекулярный фенотип клеток крови, ассоциированный с прогрессированием трижды негативного рака молочной железы

Introduction. triple negative breast cancer is an aggressive clinical phenotype characterized by poor prognosis. immune system plays an important role in the development, treatment response, and progression of solid tumor. The search for immune-related markers associated with the prediction of treatment efficacy and disease prognosis, and based on the use of high-resolution molecular techniques, is a promising area of research, the results of which can be translated into clinical practice. Case description. The molecular profile of blood mononuclear cells in a 48-year-old female patient with histologically proven triple negative breast cancer (estrogen Receptor – 0; progesteron Receptor – 0; Her2/neu – 0; gata-3 – 0, androgen Receptor – 0 and Ki67 – 70 %) was described. The patient did not response to neoadjuvant chemotherapy with 4 cycles of paclitaxel + carboplatin followed by 2 cycles of adriamycin + cyclophosphamide. The patient underwent surgery. disease progression (pelvic bone metastases) occurred 2 months after surgery. The features of blood lymphocytes and monocytes associated with a lack of response to neoadjuvant chemotherapy and disease progression were described.Conclusion. This clinical case demonstrates that sequencing of peripheral blood mononuclear cells can be used as a method for identifying predictive markers of therapy efficacy and developing personalized treatments for patients with triple negative breast cancer.Актуальность. Трижды негативный подтип рака молочной железы характеризуется агрессивным течением и неблагоприятным прогнозом. Компоненты иммунной системы как непосредственные участники патогенеза играют роль в развитии, ответе на терапию и прогрессировании этой нозологии. Поиск маркеров иммунных клеток, ассоциированных с предсказанием эффективности лечения и прогнозом заболевания, основанный на применении молекулярных методов высокого разрешения, является перспективным направлением поискового исследования, результаты которого можно транслировать в клиническую практику. Описание клинического случая. Представлен первый опыт описания молекулярного профиля мононуклеарных клеток крови пациентки с трижды негативным раком молочной железы. Опухоль: инвазивная карцинома неспецифического типа с экспрессией: estrogen Receptor – 0; progesteron Receptor – 0; Her2/neu – 0; gata-3 – 0, androgen Receptor – 0, Ki67 – 70 % опухолевых клеток. Отмечено отсутствие ответа на неоадъювантную химиотерапию по схеме: 4 цикла «паклитаксел + + карбоплатин», с последующими 2 курсами АС (адриамицин + циклофосфан). Пациентке проведено оперативное лечение, через 2 мес после которого выявлены метастазы в кости таза. У пациентки описаны особенности лимфоцитов и моноцитов крови, которые могут быть ассоциированы с отсутствием ответа на неоадъювантную химиотерапию и прогрессированием заболевания.Заключение. Представленное клиническое наблюдение показывает, что метод секвенирования мононуклеарных клеток периферической крови можно использовать в качестве поискового для обнаружения предиктивных маркеров эффективности терапии и создания персонифицированной системы лечения пациенток с трижды негативным раком молочной железы

Low-molecular peptide preparations obtained from cultivated stem cells in the treatment of acute renal failure

Data on the efficiency of low-molecular peptide preparations, selected from cultivated stem cells of marrow, in the treatment of acute kidney insufficiency in experimental animals are resulted. It is demonstrated that the use of peptide preparations reliably promotes survivability of experimental animals suffering from acute kidney insufficiency