39 research outputs found

    Representation of Images of Grandmother andGrandfather in Modern Russian Literature for Children

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    В статье рассматриваются характеристики персонажей, которые актуализируются авторами при создании образов старших родственников на материале произведений детской литературы.In accordance with universal socio-cultural ideas about the family, the roles of older relatives are determined by the traditional ideas of the Russian person about the transfer of values to future generations. The article analyzes some works of modern literature for children and adolescents, the system of images of which actualizes the most intricate complex of relationships between three generations

    HLA diversity in the Russian population assessed by next generation sequencing

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    Next generation sequencing is used to determine full-length sequences of HLA genes at the 4-field (allelic) resolution. The study was aimed at determining frequency and diversity of HLA alleles in a cohort of blood donors from the Registry of the National Research Center for Hematology who design ated themselves as Russians (including some not routinely typed variations in HLA gene regions). The studied population consisted of 1510 donors. HLA typing was performed by next generation sequencing. Libraries were performed with AllType NGS Amplification Kits (One Lambda, USA) and sequenced using MiSeq (Illumina, USA). Data analysis used the TypeStream Visual Software V2.0.0.68 (One Lambda, USA) and IPD-IMGT/HLA database 3.40.0.1. Arlequin 3.5 software was used for estimation of allele and haplotype frequencies, deviation from Hardy-Weinberg equilibrium. 82 HLA-A, 156 HLA-В and 85 HLA-С alleles were identified with four-field resolution. 45 HLA-DRB1 and 18 HLA-DQB1 alleles were identified with 2-3-field resolution. Considerable HLA diversity was found among the donors self-designated as Russians: the population had large numbers of distinct alleles at each HLA gene, high percentage of alleles (25-32% of HLA class I) were revealed only once. Sufficient numbers of new alleles were registered which are absent in the IPD-IMGT/HLA database. Considerable allelic diversity in Russian population is due to low-incidence alleles. Despite this diversity, the majority of HLA alleles detected at each locus were common. Significant HLA diversity of the donors was connected with a large number of alleles with rare occurrence. The novel alleles identified in our study differed from the known alleles by single nucleotide substitutions. The most common alleles at the four-field level were as follows: A*02:01:01:01 (27.1%), C*07:02:01:03 (13.1%), A*03:01:01:01 (13.0%), B*07:02:01:01 (13.0%), A*01:01:01:01 (11.6%) and C*07:01:01:01/16 (10.4%). The HLA alleles, which are common for Russian populations, are not always common or well-documented alleles in present catalogues. The data obtained in this study may be used as a reference sample for estimation of HLA allele frequencies in Russian population, for proper frequency evaluation of specific alleles when searching donors for allogeneic hematopoietic stem cell transplantation, as well as for association studies between HLA alleles and different diseases, and for research in population genetics

    An improvement of the Berry--Esseen inequality with applications to Poisson and mixed Poisson random sums

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    By a modification of the method that was applied in (Korolev and Shevtsova, 2009), here the inequalities ρ(Fn,Φ)0.335789(β3+0.425)n\rho(F_n,\Phi)\le\frac{0.335789(\beta^3+0.425)}{\sqrt{n}} and ρ(Fn,Φ)0.3051(β3+1)n\rho(F_n,\Phi)\le \frac{0.3051(\beta^3+1)}{\sqrt{n}} are proved for the uniform distance ρ(Fn,Φ)\rho(F_n,\Phi) between the standard normal distribution function Φ\Phi and the distribution function FnF_n of the normalized sum of an arbitrary number n1n\ge1 of independent identically distributed random variables with zero mean, unit variance and finite third absolute moment β3\beta^3. The first of these inequalities sharpens the best known version of the classical Berry--Esseen inequality since 0.335789(β3+0.425)0.335789(1+0.425)β3<0.4785β30.335789(\beta^3+0.425)\le0.335789(1+0.425)\beta^3<0.4785\beta^3 by virtue of the condition β31\beta^3\ge1, and 0.4785 is the best known upper estimate of the absolute constant in the classical Berry--Esseen inequality. The second inequality is applied to lowering the upper estimate of the absolute constant in the analog of the Berry--Esseen inequality for Poisson random sums to 0.3051 which is strictly less than the least possible value of the absolute constant in the classical Berry--Esseen inequality. As a corollary, the estimates of the rate of convergence in limit theorems for compound mixed Poisson distributions are refined.Comment: 33 page

    Organisational and methodological challenges of CAR-T manufacturing in the Russian Federation

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    Despite their widespread clinical implementation, chimeric antigen receptor T-cell (CAR-T) therapy products, including those manufactured by industrial processes, are still not legally available or used in the Russian Federation.The aim of the study was to describe the current challenges associated with specific aspects of CAR-T manufacturing in the Russian Federation and the potential ways to overcome them.This article discusses the regulatory, legal, organisational, and methodological challenges of CAR-T manufacturing. It analyses differences in the interpretation of CAR-T therapy products under national and supranational law. According to Russian Federal Law No. 180-FZ “On Biomedical Cell Products” of 23 June 2016, CAR-T therapy products are considered biomedical cell products. However, according to Decision No. 78 of the Council of the Eurasian Economic Commission “On the Rules of Marketing Authorisation and Assessment of Medicinal Products for Human Use” of 3 November 2016, CAR-T therapy products are considered advanced therapy medicinal products (ATMPs). This article provides a detailed overview of the difficulties in obtaining starting biological materials (i.e. the inability to consider the patient as a donor) and transferring the materials for CAR-T manufacturing (i.e. the inapplicability of national law). In addition, this article describes export aspects specific to biological materials. The authors reckon that CAR-T therapy products should be categorised as ATMPs and that the corresponding active pharmaceutical ingredients, genetically modified autologous lymphocytes, should be defined as starting materials. Therefore, genetically modified autologous lymphocytes should be regulated under the requirements for starting materials for the manufacturing of active pharmaceutical ingredients that are set forth in Decision No. 77 of the Council of the Eurasian Economic Commission “On the Adoption of the Rules of Good Manufacturing Practice of the Eurasian Economic Union” of 3 November 2016. In conclusion, the authors recognise the need for national and supranational law harmonisation. For this task, it is necessary to establish expert groups that will include clinicians, legal experts, and representatives from the relevant authorities and the pharmaceutical industry

    STUDY OF MINIMAL RESIDUAL DISEASE BY MULTICOLOR FLOW CYTOMETRY IN MULTIPLE MYELOMA AFTER AUTOLOGOUS HEMATOPOIETIC STEM CELL TRANSPLANTATION

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    The frequency of achieving complete remission, as well as overall and disease-free survival, in multiple myeloma (MM) had increased due to introduction in MM treatment regimens of high-dose chemotherapy with following autologous hematopoietic stem cell transplantation (ASCT). However the number of relapses remains high, caused by persistence of residual tumor cells, i.e., the presence of minimal residual disease (MRD). One of the methods for MRD study is multicolor flow cytometry (MFC) where abnormal expression of surface antigens on myeloma plasma cells (PC) is determined. The aim of our study was to investigate the MRD by MFC before and after ASCT, the frequency of MRD-negative status achievement in complete remission (CR) patients at +100 days after ASCT and the frequency of abnormal expressed antigens on myeloma plasma cells. The study included40 MMpatients in CR at +100 days after ASCT and showed that the most common aberrations of PC were: abnormal absence of CD19 and/or CD27, decreased expression of CD38 and abnormal presence of CD56. The proportion of myeloma PCs from all bone marrow cells decreased significantly after ASCT: 20 % of patients acquired MRD-negative status, 10 % had a decrease in the number of abnormal PCs by one fold. Analysis of probability of immunochemical relapse showed that the worst prognosis was in patients with MRD-positive status before and after ASCT. During the MRD monitoring within 3-18 months, MRD-relapses were detected with the subsequent development of immunochemical relapse. The detection MRD in the dynamics is more informative than the study at only one step of therapy. It may help to select more adequate treatment for patient with multiple myeloma in each specific case

    Разработка нового способа получения фотографического желатина

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    A new technology of preparation of photographic gelatin was developed on the basis of an accessible homogeneous raw material containing a collagen. Photographic properties of the obtained gelatin were tested.Разработана новая технология получения фотографического желатина на основе доступного однородного коллагенсодержащего сырья. Проверены фотографические свойства полученного желатина

    A novel HSP90 inhibitor-drug conjugate to SN38 is highly effective in small cell lung cancer

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    ©2016 AACR.Purpose: Small cell lung cancer (SCLC) is a highly aggressive disease representing 12% to 13% of total lung cancers, with median survival of <2 years. No targeted therapies have proven effective in SCLC. Although most patients respond initially to cytotoxic chemotherapies, resistance rapidly emerges, response to second-line agents is limited, and dose-limiting toxicities (DLT) are a major issue. This study performs preclinical evaluation of a new compound, STA-8666, in SCLC. Experimental Design: To avoid DLT for useful cytotoxic agents, the recently developed drug STA-8666 combines a chemical moiety targeting active HSP90 (concentrated in tumors) fused via cleavable linker to SN38, the active metabolite of irinotecan. We compare potency and mechanism of action of STA-8666 and irinotecan in vitro and in vivo. Results: In two SCLC xenograft and patient-derived xenograft models, STA-8666 was tolerated without side effects up to 150 mg/kg. At this dose, STA-8666 controlled or eliminated established tumors whether used in a first-line setting or in tumors that had progressed following treatment on standard first- and second-line agents for SCLC. At 50 mg/kg, STA-8666 strongly enhanced the action of carboplatin. Pharmacokinetic profiling confirmed durable STA-8666 exposure in tumors compared with irinotecan. STA-8666 induced a more rapid, robust, and stable induction of cell-cycle arrest, expression of signaling proteins associated with DNA damage and cell-cycle checkpoints, and apoptosis in vitro and in vivo, in comparison with irinotecan. Conclusions: Together, these results strongly support clinical development of STA-8666 for use in the first- or second-line setting for SCLC

    Организационно-методические проблемы производства CAR-T в Российской Федерации

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    Despite their widespread clinical implementation, chimeric antigen receptor T-cell (CAR-T) therapy products, including those manufactured by industrial processes, are still not legally available or used in the Russian Federation.The aim of the study was to describe the current challenges associated with specific aspects of CAR-T manufacturing in the Russian Federation and the potential ways to overcome them.This article discusses the regulatory, legal, organisational, and methodological challenges of CAR-T manufacturing. It analyses differences in the interpretation of CAR-T therapy products under national and supranational law. According to Russian Federal Law No. 180-FZ “On Biomedical Cell Products” of 23 June 2016, CAR-T therapy products are considered biomedical cell products. However, according to Decision No. 78 of the Council of the Eurasian Economic Commission “On the Rules of Marketing Authorisation and Assessment of Medicinal Products for Human Use” of 3 November 2016, CAR-T therapy products are considered advanced therapy medicinal products (ATMPs). This article provides a detailed overview of the difficulties in obtaining starting biological materials (i.e. the inability to consider the patient as a donor) and transferring the materials for CAR-T manufacturing (i.e. the inapplicability of national law). In addition, this article describes export aspects specific to biological materials. The authors reckon that CAR-T therapy products should be categorised as ATMPs and that the corresponding active pharmaceutical ingredients, genetically modified autologous lymphocytes, should be defined as starting materials. Therefore, genetically modified autologous lymphocytes should be regulated under the requirements for starting materials for the manufacturing of active pharmaceutical ingredients that are set forth in Decision No. 77 of the Council of the Eurasian Economic Commission “On the Adoption of the Rules of Good Manufacturing Practice of the Eurasian Economic Union” of 3 November 2016. In conclusion, the authors recognise the need for national and supranational law harmonisation. For this task, it is necessary to establish expert groups that will include clinicians, legal experts, and representatives from the relevant authorities and the pharmaceutical industry.Несмотря на широкое внедрение в клиническую практику терапии Т-клетками с химерным антигенным рецептором (chimeric antigen receptor T-cell, CAR-T), на территории Российской Федерации данные препараты до сих пор официально не представлены и не используются, в том числе и произведенные промышленным (индустриальным) способом.Цель работы — описание текущих проблем, связанных с особенностями производства CAR-T в Российской Федерации, и потенциальных путей их решения.Рассмотрены трудности, связанные c регуляторными, юридическими и организационно-методическими аспектами производства CAR-T. Проанализированы расхождения в трактовке понятия CAR-T в национальном и наднациональном праве: как биомедицинского клеточного продукта согласно Федеральному закону от 23.06.2016 № 180-ФЗ «О биомедицинских клеточных продуктах» и как высокотехнологического лекарственного препарата (ВТЛП) согласно Решению Совета Евразийской экономической комиссии от 03.11.2016 № 78 «О Правилах регистрации и экспертизы лекарственных средств для медицинского применения». Подробно рассмотрены трудности на этапе получения исходного биологического материала (невозможность рассматривать пациента как донора биологического материала); на этапе передачи биологического материала для производства CAR-T (невозможность применения национального права); особенности экспорта биологического материала. По мнению авторов статьи, CAR-T следует относить к ВТЛП, активной фармацевтической субстанцией (АФС) которых являются генетически модифицированные аутологичные лимфоциты, а последние должны быть определены как «исходный материал», и к ним должны применяться требования как к исходному материалу для производства АФС, указанные в Решении Совета Евразийской экономической комиссии от 03.11.2016 № 77 «Об утверждении Правил надлежащей производственной практики Евразийского экономического союза». Сделано заключение о необходимости гармонизации национального и наднационального права, что требует формирования экспертных групп, объединяющих врачей-клиницистов, специалистов в области права, представителей профильных ведомств и фармацевтической индустрии

    PROGNOSTIC CRITERIA OF INFANTILE SPASMS

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    West's Syndrome prognosis is extremely complicate due to the large number of potential prognostic factors. This review contains the factors affecting the termination of epileptic spasms and conducive to the maintenance of remission. These factors were: idiopathic and cryptogenic etiology, the later debut of the disease, the absence of asymmetric spasms and focal seizures, the absence of an asymmetric pattern and synchronization of the EEG, early start of therapy, the correct choice of drug and the normal development before going to the doctor, as well as the implementation by parents of patients prescribed recommendation, the occurrence of side effects, the concomitant diseases, the different form of state disease, the availability of antiepileptic drugs and surgical treatment

    Assessment of in Vitro Comparative Dissolution Kinetics of Moxonidine Products as a Factor Potentially Determining Effectiveness of Antihypertensive Treatment

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    Aim. Investigation of comparative dissolution kinetics of generic medicinal products containing moxonidine versus reference drug. Material and methods. Objects of the research were film-coated tablets containing moxonidine (INN) in a dose 0.4 mg: a reference drug Physiotens® and 4 generic drugs. In vitro dissolution test of moxonidine from the study drugs was performed using comparative dissolution kinetics test (CDKT). The CDKT was performed in the media with the following pH: 1.2 (1:9 mixture of 0.1 M hydrochloric acid and water), 4.5 (acetate buffer solution, prepared as per State Pharmacopoeia, XIII), and 6.8 (phosphate buffer solution, prepared as per State Pharmacopoeia, XIII). The sampling for dissolved moxonidine was performed 5, 10, 15, 20, and 30 min after the test was started. An high performance liquid chromatography method with ultraviolet detection at 220 nm was used to assay. Results. Within 15 min more that 85% of moxonidine dissolved from the reference drug and all study drugs at pH 1.2; dissolution profiles were similar without calculation of similarity factor f2. Similarly, at pH 4.5 dissolution profiles of study drugs #2 and #3 were similar to that of the reference drug, and the similarity factor f2 was not calculated. However, in case of study drugs #1 and #4 significant differences were observed at a single time point (15 min), which suggests that their dissolution profiles are non-similar to that of the reference drug. Similarity factors f2 were calculated 17.52 and 35.30, respectively (less than 50). At pH 6.8 similarity factors f2 for all study generic drugs were also less than 50 (23.8, 49.8, 38.6, and 35.9), so their dissolution curves were non-similar to that of reference drug. Conclusion. In our study we observed difference in release in vitro of medicinal products containing moxonidines: none of the study drugs was fully similar to the reference drug in all media. The differences observed at pH 6.8 were noteworthy, where the samples had or faster kinetics (study drugs #2 and #3), or slower dissolution kinetics (test drugs #1 and #4). Observed differences in moxonidine release rate may impact absorption of active pharmaceutical ingredient into the blood following drug administration
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