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Yunusova AM, Smirnov AV, Pristyazhnuk IE, Shnaider TA, Maltseva EK, Afonnikova SD, Gusev OA, Battulin NR. Assessing cell lines with inducible depletion of cohesin and condensins components through analysis of metaphase chromosome morphology. Vavilovskii Zhurnal Genet Selektsii 2024; 28:138-147. [PMID: 38686135 PMCID: PMC11057366 DOI: 10.18699/vjgb-24-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 05/02/2024] Open
Abstract
One of the most productive strategies for finding the functions of proteins is to study the consequences of loss of protein function. For this purpose, cells or organisms with a knockout of the gene encoding the protein of interest are obtained. However, many proteins perform important functions and cells or organisms could suddenly lose fitness when the function of a protein is lost. For such proteins, the most productive strategy is to use inducible protein degradation systems. A system of auxin-dependent protein degradation is often implemented. To use this system, it is sufficient to introduce a transgene encoding a plant-derived auxin-dependent ubiquitin ligase into mammalian cells and insert a sequence encoding a degron domain into the gene of interest. A crucial aspect of development of cell lines engineered for inducible protein depletion is the selection of cell clones with efficient auxin-dependent degradation of the protein of interest. To select clones induced by depletion of the architectural chromatin proteins RAD21 (a component of the cohesin complex) and SMC2 (a component of the condensin complex), we propose to use the morphology of metaphase chromosomes as a convenient functional test. In this work, we obtained a series of clones of human HAP1 cells carrying the necessary genetic constructs for inducible depletion of RAD21 and SMC2. The degradation efficiency of the protein of interest was assessed by flow cytometry, Western blotting and metaphase chromosome morphology test. Based on our tests, we showed that the clones we established with the SMC2 degron effectively and completely lose protein function when induced by auxin. However, none of the HAP1 clones we created with the RAD21 degron showed complete loss of RAD21 function upon induction of degradation by auxin. In addition, some clones showed evidence of loss of RAD21 function even in the absence of induction. The chromosome morphology test turned out to be a convenient and informative method for clone selection. The results of this test are in good agreement with flow cytometry analysis and Western blotting data.
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Affiliation(s)
- A M Yunusova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A V Smirnov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - I E Pristyazhnuk
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - T A Shnaider
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - E K Maltseva
- Novosibirsk State University, Novosibirsk, Russia
| | - S D Afonnikova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - O A Gusev
- Life Improvement by Future Technologies (LIFT) Center, Moscow, Russia Kazan Federal University, Kazan, Russia Endocrinology Research Center, Moscow, Russia
| | - N R Battulin
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Novosibirsk State University, Novosibirsk, Russia
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Balakin VE, Rozanova OM, Smirnova EN, Belyakova TA, Strelnikova NS, Smirnov AV, Shemyakov AE. Growth Induction of Solid Ehrlich Ascitic Carcinoma in Mice after Proton Irradiation of Tumor Cells Ex Vivo. DOKL BIOCHEM BIOPHYS 2023; 511:151-155. [PMID: 37833598 DOI: 10.1134/s1607672923700229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/21/2023] [Accepted: 03/21/2023] [Indexed: 10/15/2023]
Abstract
This study presents data on the growth rate and frequency of induction of the solid form of Ehrlich's ascites carcinoma (EAC) in mice in the short and long term after inoculation of ascitic cells irradiated ex vivo with a proton beam in the dose range of 30-150 Gy. It was shown that the growth rate of solid tumors after inoculation of irradiated cells ex vivo coincided with the growth of tumors in the control group. The frequency of tumor induction in mice after inoculation of EAC cells irradiated at a dose of 30 Gy was 80%, 60 Gy-60%, 90 Gy-25%, and 120 Gy-10%; at irradiation at a dose of 150 Gy, no tumors appeared during the entire observation period. Thus, we determined the dose of proton radiation required to eliminate tumor cells and/or signaling factors that can lead to the induction of tumor growth of EAC in mice.
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Affiliation(s)
- V E Balakin
- Physical-Technical Center, Branch of Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
| | - O M Rozanova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - E N Smirnova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - T A Belyakova
- Physical-Technical Center, Branch of Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
| | - N S Strelnikova
- Physical-Technical Center, Branch of Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia.
| | - A V Smirnov
- Physical-Technical Center, Branch of Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
| | - A E Shemyakov
- Physical-Technical Center, Branch of Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
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Johnson DD, Singh P, Smirnov AV, Argibay N. Universal Maximum Strength of Solid Metals and Alloys. Phys Rev Lett 2023; 130:166101. [PMID: 37154666 DOI: 10.1103/physrevlett.130.166101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/19/2023] [Accepted: 03/16/2023] [Indexed: 05/10/2023]
Abstract
Interstitial electron density ρ_{o} is offered as a direct metric for maximum strength in metals, arising from universal properties derived from an electron gas. ρ_{o} sets the exchange-correlation parameter r_{s} in density-functional theory. It holds also for maximum shear strength τ_{max} in polycrystals [M. Chandross and N. Argibay, Phys. Rev. Lett. 124, 125501 (2020)PRLTAO0031-900710.1103/PhysRevLett.124.125501]. Elastic moduli and τ_{max} for polycrystalline (amorphous) metals are linear with ρ_{o} and melting T_{m} (glass-transition T_{g}) temperature. ρ_{o} or r_{s}, even with rule-of-mixture estimate, predicts relative strength for rapid, reliable selection of high-strength alloys with ductility, as confirmed for elements to steels to complex solid solutions, and validated experimentally.
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Affiliation(s)
- Duane D Johnson
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, USA
- Ames Laboratory, U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, USA
| | - Prashant Singh
- Ames Laboratory, U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, USA
| | - A V Smirnov
- Ames Laboratory, U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, USA
| | - Nicolas Argibay
- Ames Laboratory, U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, USA
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Spasov AA, Zhukovskaya ON, Rashchenko AI, Brigadirova AA, Litvinov RA, Gurova NA, Smirnov AV, Pan’shin NG, Abbas HS, Morkovnik AS. DF-5 COMPOUND DELAYS DEVELOPMENT OF DIABETIC NEPHROPATHY IN RATS. Farm farmakol (Pâtigorsk) 2023. [DOI: 10.19163/2307-9266-2022-10-6-549-561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Advanced glycation end-products play an important role in the development of diabetic complications, so slowing down of glycated proteins’ cross-links formation have been suggested as a potential therapeutic option for the treatment of vascular diabetic complications and preventing their progression.The aim of the work was to assess the influence of novel anticrosslinking agent DF-5 on the renal advanced glycation end-products and collagen contents, body weight, blood glucose and glycated hemoglobin levels and the development of early renal disease in streptozotocin-induced diabetic rats.Materials and methods. 40 male Sprague-Dawley rats were used in the study. Two months after inducing diabetes, the study substance was administered intragastrically once a day for 28 days (12.5 mg/kg). Measurements included the assessment of blood glucose and HbA1c levels, the evaluation of the renal function, and the results of histology and immunohistochemical staining of kidneys.Results. A repeated intragastric administration of DF-5 for 30 days significantly reduced the level of HbA1c in the blood, but did not affect the level of fasting blood glucose. DF-5 compound significantly reduced proteinuria and prevented kidney damage in experimental animals by limiting damage of the glomeruli and tubules. It was found that DF-5 inhibits the progression of an early renal dysfunction in rats with streptozotocin-induced diabetic nephropathy. This was associated with a decreased accumulation of advanced glycation end-products in the kidney, accompanied by the improvement of both renal morphology and function.Conclusion. The results obtained provide investigators with additional therapeutic options for the treatment of diabetic nephropathy and possibly other complications of diabetes.
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Affiliation(s)
- A. A. Spasov
- Volgograd State Medical University;
Volgograd Medical Research Center
| | - O. N. Zhukovskaya
- Institute of Physical and Organic Chemistry, Southern Federal University
| | | | - A. A. Brigadirova
- Volgograd State Medical University;
Volgograd Medical Research Center
| | - R. A. Litvinov
- Volgograd State Medical University;
Volgograd Medical Research Center
| | | | - A. V. Smirnov
- Volgograd State Medical University;
Volgograd Medical Research Center
| | | | - H. S.A. Abbas
- Institute of Physical and Organic Chemistry, Southern Federal University
| | - A. S. Morkovnik
- Institute of Physical and Organic Chemistry, Southern Federal University
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Keshvedinova AA, Smirnov AV, Stankevich VR, Sharobaro VI, Ivanov YV. [Treatment of ventral hernias in patients with morbid obesity]. Khirurgiia (Mosk) 2023:95-102. [PMID: 37707338 DOI: 10.17116/hirurgia202309195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
The review is devoted to the treatment of ventral hernias in patients with morbid obesity. This issue is important due to significant number of such patients and no unambiguous clinical recommendations. The advantages of simultaneous surgery (with bariatric intervention) are obvious, i.e. lower risk of postoperative hernia incarceration and no need for re-hospitalization with another intervention. High risk of bariatric population makes it necessary to minimize surgery time and surgical trauma. A staged approach with reducing body weight surgically or conservatively before hernia repair is often chosen. Hernia repair should be performed using laparoscopic or robotic techniques with obligatory use of mesh implants. Panniculectomy or abdominoplasty as the main surgery is a valid option. Currently, it is necessary to develop clear criteria for selecting patients with morbid obesity for staged and simultaneous treatment of ventral hernias.
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Affiliation(s)
- A A Keshvedinova
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
| | - A V Smirnov
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
| | - V R Stankevich
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
| | - V I Sharobaro
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - Yu V Ivanov
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
- Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
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Smirnov AV, Levashova TV. Multi-Aspect User Ontology for Intelligent Decision Support Based on Digital Footprints. Sci Tech Inf Proc 2022. [DOI: 10.3103/s0147688222060119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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Belova MM, Ponomarev AV, Smirnov AV, Belova EV. Influence of Isopar-M on Radiation and Thermal Degradation of Tri-n-Butyl Phosphate in Solutions. Radiochemistry 2022. [DOI: 10.1134/s1066362222060066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Bol’shakova IA, Ponomarev AV, Smirnov AV, Belova EV. Thermal and Hydrolytic Stability of Irradiated Tri-n-Butyl Phosphate. Radiochemistry 2022. [DOI: 10.1134/s1066362222060054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Bogdan TV, Krasnikov PA, Smirnov AV, Koklin AE, Mashchenko NV, Bogdan VI. Utilization of Acetone, By-Product of Cumene Process for Phenol Production, via BaSnO3-Catalyzed Aldol Condensation. Dokl Phys Chem 2022. [DOI: 10.1134/s0012501622600231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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Balakin VE, Rozanova OM, Smirnova EN, Belyakova TA, Strelnikova NS, Smirnov AV, Vasilyeva AG. Radioprotective Effect of Nanocerium by Irradiation of Mice with Carbon Ions in Medium and Lethal Doses. DOKL BIOCHEM BIOPHYS 2022; 507:283-288. [PMID: 36786987 DOI: 10.1134/s1607672922060023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 02/15/2023]
Abstract
The data of the study of the radioprotective properties of nanocerium (nCeO2) after total irradiation of mice with carbon ions in medium and lethal doses according to the micronucleus test and the criterion of 30-day survival are presented. A significant protective effect of nCeO2 upon irradiation at medium doses was observed at per os administration for 5 days before irradiation (that is, at long-term prophylactic use). Mouse survival data showed no protective effect of per os administration of nCeO2 in contrast to the micronucleus test results. After injections of both nCeO2 and saline solution 24 h before or immediately after irradiation, the radioprotective effect was detected using both methods. The data obtained revealed the dependence of the observed effects on the mode and time of nCeO2 administration, the influence of the solvent, the level of doses and the quality of radiation, as well as demonstrated the possibility of using nanocerium preparations to protect organisms from radiation with high LET values and the importance of further studies of the radioprotective properties of new nanomaterials.
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Affiliation(s)
- V E Balakin
- Branch "Physical-Technical Center" of P.N. Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
| | - O M Rozanova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - E N Smirnova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - T A Belyakova
- Branch "Physical-Technical Center" of P.N. Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia.
| | - N S Strelnikova
- Branch "Physical-Technical Center" of P.N. Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
| | - A V Smirnov
- Branch "Physical-Technical Center" of P.N. Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Russia
| | - A G Vasilyeva
- Institute for High Energy Physics named by A.A. Logunov, National Research Centre "Kurchatov Institute", Protvino, Russia
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Kovalenko PS, Dydykina IS, Smirnov AV, Nasonov EL. Bone resorption during therapy with denosumab in patients with rheumatoid arthritis, positive for the main immunological markers. Naučno-praktičeskaâ revmatologiâ 2022. [DOI: 10.47360/1995-4484-2022-573-579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective. Inflammation in rheumatoid arthritis (RA) leads to the development of local and generalized bone loss. Rheumatoid factor (RF) and anti-cyclic citrullinated peptide antibodies (ACCP) are believed to play a negative role in the radiological progression of RA. The use of such antiresorptive therapy as denosumab – monoclonal antibodies to RANKL (receptor activator of nuclear factor kappa-B ligand), reduces the activity of osteoclasts, increases bone mineral density (BMD), and also potentially affects the erosive process at RA. The aim of the study is to evaluate the effect of denosumab therapy on BMD and erosion count in patients with RA and osteoporosis (OP) in consideration of the positivity in the RF and ACCP in serum and the baseline RA activity. Materials and methods. The 12-month prospective study of the efficacy of denosumab therapy (60 mg subcutaneously every 6 months) in patients with RA and OP included 66 postmenopausal women; age – 59.4±7.5 years, duration of RA – 17.8±10.6 years, RF-positive – 47 (72%) patients, ACCP-positive – 48 (74%) patients. At baseline and after 12 months, dual-energy X-ray absorptiometry was performed with an assessment of BMD in the lumbar spine (L1– L4), proximal femur (hip neck and total hip), distal forearm; X-ray of the hands and distal parts of the feet in direct projection, followed by assessment of erosive-destructive changes according to the Sharp/van der Heijde method. Results. A significant increase in BMD was established in all studied sites of the skeleton despite the positivity of the RF and ACCP (for the hip neck p=0.05), while a significant increase in BMD in the RF- and ACCP-negative group was detected only in L1–L4 site. The progression of the increase in erosion count was noted in the RF- and ACCP-positive group while in the RF- and ACCP-negative group this indicator did not change. Regardless of the baseline activity of RA (by DAS28 (Disease Activity Score 28)) the BMD of most parts of the skeleton were stabilized. In patients with moderate RA activity, BMD increased significantly in L1–L4 in both groups: RF- and ACCP-positive and -negative , as well as in the total hip – in RF- and ACCP-positive group. The dynamics of the erosion count in RA patients did not depend on the baseline degree of DAS28 activity, no significant changes were detected in the analyzed groups. Conclusions. RF and ACCP positivity in serum in patients with RA and OP treated with denosumab did not have a negative effect on the dynamics of BMD, while the number of erosions increased. The baseline RA activity level did not affect the dynamics of the erosion count and the dynamics of BMD in most subgroups – BMD levels have been increased or stabilized.
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Affiliation(s)
| | | | | | - E. L. Nasonov
- V.A. Nasonova Research Institute of Rheumatology; I.M. Sechenov First Moscow State Medical University of the Ministry
of Health Care of Russian Federation (Sechenov University)
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Rozanova OM, Smirnova EN, Belyakova TA, Strelnikova NS, Shemyakov AE, Smirnov AV. The Effect of Irradiation with a Sequence of Neutrons and Protons on the Tumor Response of Solid Ehrlich Carcinoma and Skin Reactions in Mice in the Early and Long Terms. Biophysics (Nagoya-shi) 2022. [DOI: 10.1134/s0006350922050153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Pisarenko EV, Ponomarev AB, Smirnov AV, Pisarenko VN, Shevchenko AA. Prospects for Progress in Developing Production Processes for the Synthesis of Olefins Based on Light Alkanes. Theor Found Chem Eng 2022. [DOI: 10.1134/s0040579522050335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chechetkina SA, Khabarova AA, Chvileva AS, Kurchenko OM, Smirnov AV, Yunusova AM, Kotov IN, Musatova EV, Pomerantseva EA, Volovikov EA, Lagarkova MA, Shnaider TA, Pristyazhnyuk IE. Corrigendum to "Generation of two iPSC lines from healthy donor with a heterozygous mutation in the VPS13B gene" [59 (2022) 102648]. Stem Cell Res 2022; 62:102787. [PMID: 35462156 DOI: 10.1016/j.scr.2022.102787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
| | - A A Khabarova
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
| | - A S Chvileva
- Novosibirsk State University, Novosibirsk, Russia
| | | | - A V Smirnov
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
| | - A M Yunusova
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
| | - I N Kotov
- Center of Genetics and Reproductive Medicine GENETICO, JSC, Moscow, Russia
| | - E V Musatova
- Center of Genetics and Reproductive Medicine GENETICO, JSC, Moscow, Russia
| | - E A Pomerantseva
- Center of Genetics and Reproductive Medicine GENETICO, JSC, Moscow, Russia
| | - E A Volovikov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - M A Lagarkova
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | - T A Shnaider
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
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Vedernikov YN, Fedotov SA, Smirnov AV, Avatinyan GA, Parshikov YG, Ponomarev AN, Kulagin YA. Synthesis of High-Energy Materials Modified with Nanoscale Carbon and Investigation of Their Sensitivity to Laser Radiation. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222060275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Smirnov AV, Levashova TV, Ponomarev AV. Decision Support Based on Human–Computer Collective Intelligence: Analysis of Methodologies and Ontology Model. Sci Tech Inf Proc 2022. [DOI: 10.3103/s0147688221050099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chechetkina SA, Khabarova AA, Chvileva AS, Kurchenko OM, Smirnov AV, Yunusova AM, Kotov IN, Musatova EV, Pomerantseva EA, Volovikov EA, Lagarkova MA, Shnaider TA, Pristyazhnyuk IE. Generation of two iPSC lines from healthy donor with a heterozygous mutation in the VPS13B gene. Stem Cell Res 2022; 59:102648. [PMID: 35026660 DOI: 10.1016/j.scr.2021.102648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/10/2021] [Accepted: 12/27/2021] [Indexed: 11/25/2022] Open
Abstract
The human induced pluripotent stem cell (iPSC) lines, iCS-MAF1-1 and iCS-MAF1-11, were generated from fibroblasts. The donor has a heterozygous mutation in the VPS13B gene, which manifests in her child as Cohen syndrome. It is a Golgi pathology, characterized by postnatal microcephaly and delayed growth and mental development. However, the process underlying pathological changes leading to the onset of the disease is still unknown. The use of iPSC will allow describing the early stages of neurogenesis, which is undoubtedly relevant for identifying key stages of development, at which phenotypic manifestations of mutations in the VPS13B gene are found.
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Affiliation(s)
| | - A A Khabarova
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
| | - A S Chvileva
- Novosibirsk State University, Novosibirsk, Russia
| | | | - A V Smirnov
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
| | - A M Yunusova
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
| | - I N Kotov
- Center of Genetics and Reproductive Medicine GENETICO, JSC, Moscow, Russia
| | - E V Musatova
- Center of Genetics and Reproductive Medicine GENETICO, JSC, Moscow, Russia
| | - E A Pomerantseva
- Center of Genetics and Reproductive Medicine GENETICO, JSC, Moscow, Russia
| | - E A Volovikov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - M A Lagarkova
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | - T A Shnaider
- Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia
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Sudnitsyna JS, Skverchinskaya EA, Zubina IM, Suglobova ED, Vlasov TD, Smirnov AV, Vasiliev AN, Ruzhnikova TO, Kaljuzhnyi BA, Mindukshev IV, Borisov YA. Alterations in Erythrocyte Deformability and Functions Associated with End-Stage Renal Disease. Biochem Moscow Suppl Ser A 2022. [DOI: 10.1134/s1990747821060118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ivakin YD, Smirnov AV, Kormilitsin MN, Kholodkova AA, Vasin AA, Kornyushin MV, Tarasovskii VP, Rybal’chenko VV. Effect of Mechanical Pressure on the Recrystallization of Zinc Oxide in a Water Fluid Medium under Cold Sintering. Russ J Phys Chem B 2022. [DOI: 10.1134/s1990793121080054] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Veshchitsky GA, Smirnov AV, Mashchenko NV, Koklin AE, Bogdan VI. Self-Condensation of Acetone of Strontium Stannate under Supercritical Conditions. Russ J Phys Chem B 2022. [DOI: 10.1134/s1990793121080133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Zavyalov PS, Makarov SN, Smirnov AV, Fedorchuk SD, Stupak MF, Verhoglyad AG, Elesin AG, Zavyalova MA, Kravchenko MS, Skokov DV, Vlasov EV, Ermolenko AV. Development of a two-channel system for monitoring the mirror elements of the Millimetron space observatory. Appl Opt 2022; 61:588-596. [PMID: 35200901 DOI: 10.1364/ao.441372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
The paper presents the results of the development of an onboard two-stage telescope monitoring (control) system of the Millimetron space observatory. A 3D laser scanner is used for the preliminary inspection of the reflector elements, and an image analyzer based on the Foucault knife method is used for the final one. The results of the calculation and modeling of the monitoring system for tuning the telescope elements into space are presented. The signals formed in the system are calculated, including using data on the actual shape of the manufactured mirror elements. Estimates of the expected measurement accuracy are given, and the test results of the developed system are presented.
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22
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Ermilov VV, Smirnov AV, Dorofeev NA, Grigor'eva NV, Tarasova NV, Kushniruk PI, Karadzhe M, Barkanov VB, Chernetsky OA, Poplavsky AE, Nesterova AA, Lozovik VV, Somova VV. [COVID-19-associated mucormycosis in ophthalmological practice in the Volgograd region]. Arkh Patol 2022; 84:43-49. [PMID: 36178222 DOI: 10.17116/patol20228405143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The problem of fungal infections in the era of COVID-19 has acquired special significance. This infection, directly or indirectly, through the use of glucocorticoids and antibiotics in its treatment, as well as poorer self-management of chronic diseases, has led to a wide spread of risk factors for fungal diseases among people who have had a novel coronavirus infection. The article presents two cases of COVID-19-associated mycosis, more related to mucormycosis, which were diagnosed by ophthalmologists in the Volgograd region. In the first case, the severe course of rhino-orbito-cerebral form of mucormycosis required a number of surgical interventions and prolonged treatment in the intensive care unit. In the second case, the patient asked for help without signs of aggravation of the general condition, but with irreversible local manifestations. In both cases, the eyeball was removed. Morphological examination revealed aseptal ribbon hyphae of different diameters, branching mainly at right angles, more typical for fungi of the Mucorales family. Due to the severe consequences of the disease, clinicians, including ophthalmologists, need to be especially alertness in patients with the described symptoms and risk factors in the post-COVID period.
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Affiliation(s)
- V V Ermilov
- Volgograd State Medical University, Volgograd, Russia
| | - A V Smirnov
- Volgograd State Medical University, Volgograd, Russia
- Volgograd Medical Research Center, Volgograd, Russia
| | - N A Dorofeev
- Volgograd State Medical University, Volgograd, Russia
- Volgograd Medical Research Center, Volgograd, Russia
| | | | - N V Tarasova
- Volgograd State Medical University, Volgograd, Russia
| | - P I Kushniruk
- Volgograd State Medical University, Volgograd, Russia
| | - M Karadzhe
- Volgograd Regional Clinical Hospital No. 1, Volgograd, Russia
| | - V B Barkanov
- Volgograd State Medical University, Volgograd, Russia
| | - O A Chernetsky
- Volgograd Regional Pathological Bureau, Volgograd, Russia
| | - A E Poplavsky
- Volgograd Regional Pathological Bureau, Volgograd, Russia
| | - A A Nesterova
- Volgograd State Medical University, Volgograd, Russia
| | - V V Lozovik
- Volgograd Regional Clinical Hospital No. 1, Volgograd, Russia
| | - V V Somova
- Volgograd State Medical University, Volgograd, Russia
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23
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Bogomolov DV, Zvyagin VN, Putintsev VA, Smirnov AV. [Models and sculptural casts in forensic medicine and medical criminology]. Sud Med Ekspert 2022; 65:64-68. [PMID: 36196843 DOI: 10.17116/sudmed20226505164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The study objective is to present facts from the history of casting art and biographical information about the casting artists S.P. Fiveysky and M.A. Kurbatov, the founders of the casting craft in Russia. The attributes of the technology for making death masks, their features, advantages, and disadvantages as objects that capture appearance are described. The role of models and death masks in forensic practice, forensic science, and pedagogical activity is addressed.
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Affiliation(s)
- D V Bogomolov
- Russian Center of Forensic Medical Expertise, Moscow, Russia
| | - V N Zvyagin
- Russian Center of Forensic Medical Expertise, Moscow, Russia
| | - V A Putintsev
- Military University named after Prince Alexander Nevsky, Moscow, Russia
- RUDN University, Moscow, Russia
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24
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Smirnov AV, Shnaider TА, Korablev AN, Yunusova AM, Serova IA, Battulin NR. A hypomorphic mutation in the mouse Csn1s1 gene generated by CRISPR/Cas9 pronuclear microinjection. Vavilovskii Zhurnal Genet Selektsii 2021; 25:331-336. [PMID: 34901729 PMCID: PMC8627868 DOI: 10.18699/vj21.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/28/2021] [Accepted: 02/08/2021] [Indexed: 11/19/2022] Open
Abstract
Caseins are major milk proteins that have an evolutionarily conserved role in nutrition. Sequence variations in the
casein genes affect milk composition in livestock species. Regulatory elements of the casein genes could be used to direct
the expression of desired transgenes into the milk of transgenic animals. Dozens of casein alleles have been identified for
goats, cows, sheep, camels and horses, and these sequence variants are associated with altered gene expression and milk
protein content. Most of the known mutations affecting casein genes’ expression are located in the promoter and 3’-untranslated regions. We performed pronuclear microinjections with Cas9 mRNA and sgRNA against the first coding exon of
the mouse Csn1s1 gene to introduce random mutations in the α-casein (Csn1s1) signal peptide sequence at the beginning
of the mouse gene. Sanger sequencing of the founder mice identified 40 mutations. As expected, mutations clustered
around the sgRNA cut site (3 bp from PAM). Most of the mutations represented small deletions (1–10 bp), but we detected
several larger deletions as well (100–300 bp). Functionally most mutations led to gene knockout due to a frameshift or a
start codon loss. Some of the mutations represented in-frame indels in the first coding exon. Of these, we describe a novel
hypomorphic Csn1s1 (Csn1s1c.4-5insTCC) allele. We measured Csn1s1 protein levels and confirmed that the mutation has a
negative effect on milk composition, which shows a 50 % reduction in gene expression and a 40–80 % decrease in Csn1s1
protein amount, compared to the wild-type allele. We assumed that mutation affected transcript stability or splicing by an
unknown mechanism. This mutation can potentially serve as a genetic marker for low Csn1s1 expression.
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Affiliation(s)
- A V Smirnov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - T А Shnaider
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A N Korablev
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A M Yunusova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - I A Serova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - N R Battulin
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Novosibirsk State University, Novosibirsk, Russia
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25
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Smirnov AV, Ermilov VV, Dorofeev NA, Tolokolnikov VA, Chernetsky OA, Poplavsky AE, Botasheva VS, Samusev RP, Alexandrova LI, Belik TA, Makarova MM, Gurov DY. [Features of pathological anatomy of COVID-19 according to autopsy results in the Volgograd Region]. Arkh Patol 2021; 83:5-13. [PMID: 34859980 DOI: 10.17116/patol2021830615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In connection with the ongoing pandemic of the novel coronavirus infection, the study of its morphopathology and the analysis of autopsy data are relevant. At the same time, attention should be paid to thromboses that play a significant role in the development of fatal outcomes in COVID-19, even taking into account the prescription of anticoagulant therapy to most patients. OBJECTIVE To make an assessment of morphological changes and a statistical analysis of the structure of mortality in COVID-19 on the basis of autopsy results in the Volgograd Region in 2020. MATERIAL AND METHODS The study was based on data from «The system for information on the work of the Volgograd Regional Autopsy Bureau» with a search for cases according to U07.1 code (the COVID-19 virus was identified) in January 1, 2020, to December 31, 2020, as well as on the autopsy materials of the Volgograd Regional Autopsy Bureau, and microscopic examination with photo fixation. Statistical processing was performed using the R programming language. RESULTS During the above period, 1119 deaths were identified with a confirmed diagnosis of COVID-19. Anatomopathological examination of the autopsy material showed that 77.54% of cases had blood clots mainly in the vessels of the pulmonary microvasculature, often only in the single veins during the applied anticoagulant therapy. Analysis of variance indicated that the obtained result statistically significantly differed from the random distribution, and the probability of the presence of blood clots of specified localization was 3.17 times higher (CI 2.3-4.4; p<0.05) than their absence, as evidenced by logistic regression. In addition, perivascular and intra-alveolar diapedesis hemorrhages were noted in most fatal cases. CONCLUSION Thus, this investigation has revealed that the high frequency of thrombosis detected in the presence of perivascular and intra-alveolar diapedesis hemorrhages in COVID-19 confirms the tendency of patients with a severe course of the disease to manifest hemostatic disorders, significant blood vascular endothelial injury, and obvious vascular impermeability.
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Affiliation(s)
- A V Smirnov
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia.,Volgograd Medical Research Center, Volgograd, Russia
| | - V V Ermilov
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia
| | - N A Dorofeev
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia.,Volgograd Medical Research Center, Volgograd, Russia
| | - V A Tolokolnikov
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia.,Volgograd Regional Autopsy Bureau, Volgograd, Russia
| | | | - A E Poplavsky
- Volgograd Regional Autopsy Bureau, Volgograd, Russia
| | - V S Botasheva
- Stavropol State Medical University of the Ministry of Health of Russia, Stavropol, Russia
| | - R P Samusev
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia
| | - L I Alexandrova
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia
| | - T A Belik
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia
| | - M M Makarova
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia
| | - D Yu Gurov
- Volgograd State Medical University of the Ministry of Health of Russia, Volgograd, Russia
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26
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Gorozhanin AV, Kuzin AV, Bludov AB, Radenska-Lopovok SG, Smirnov AV, Kuzin DA, Krylov AS. [Severe spine lesion following alkaptonuria. Case report]. Zh Vopr Neirokhir Im N N Burdenko 2021; 85:104-109. [PMID: 34714010 DOI: 10.17116/neiro202185051104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Alkaptonuria is a rare autosomal recessive disease. In these patients, melanin-like compounds as the final products of impaired metabolism of homogentisic acid are deposited mainly in connective tissue, including cartilage tissue of intervertebral discs. Similar to other degenerative spine diseases, lumbar segment is often damaged. The authors report a 67-year-old patient with alkaptonuria. Compression of cauda equina by damaged cartilage masses of intervertebral discs and spine ligaments with deposits of ochronotic pigment is described. Previously diagnosed alkaptonuria in this patient was confirmed by surgical findings (black pigmentation) and histological data.
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Affiliation(s)
| | - A V Kuzin
- Russian Medical Academy of Continuing Professional Education, Moscow, Russia.,Nasonov Rheumatology Research Institute, Moscow, Russia
| | - A B Bludov
- Blokhin Russian Cancer Research Center, Moscow, Russia
| | - S G Radenska-Lopovok
- Russian Medical Academy of Continuing Professional Education, Moscow, Russia.,Sechenov First Moscow State Medical University, Moscow, Russia
| | - A V Smirnov
- Nasonov Rheumatology Research Institute, Moscow, Russia
| | - D A Kuzin
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - A S Krylov
- Blokhin Russian Cancer Research Center, Moscow, Russia
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27
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Ryazantsev SV, Khramova MN, Smirnov AV. [The social demographic aspects of vaccination of population of Russia in the context of COVID-19 pandemic]. Probl Sotsialnoi Gig Zdravookhranenniiai Istor Med 2021; 29:1047-1056. [PMID: 34665535 DOI: 10.32687/0869-866x-2021-29-5-1047-1056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 06/26/2021] [Indexed: 11/06/2022]
Abstract
The pandemic of the new corona-virus infection COVID-19 will be over only when population immunity will be developed. This condition can be achieved by both vaccination and surviving disease in natural way. The WHO recommends the first mode for achieving population immunity, since immune response to vaccine is similar to that one developed while surviving natural infection, but with minimal risks to health and life. The article presents the results of sociological survey organized with purpose of studying the attitude of Russians to vaccination against COVID-19 infection. The results of the survey demonstrated that at present, 22% of respondents are ready to be vaccinated i.e. they responded positively to the corresponding question. The following main factors determining population attitude to vaccination were identified. First, there is statistically significant correlation between vaccination readiness and education level: respondents with higher level of education are more likely to be vaccinated against COVID-19. Secondly, in general, the population is quite positive about the response of the National health care to the corona-virus pandemic. However, the percentage of population that is positive about vaccination can be higher if it would be possible to apply foreign-made vaccines in Russia. Thirdly, still there is large percentage of population believing that vaccination with medications that have not passed long-term clinical trials can result in health negative consequences. Fourthly, the majority of respondents experienced various manifestations of the pandemic on themselves: either they have been ill themselves, or their relatives and friends were ill or died and almost all of them somehow limited their common mobility.The survey results did not established statistically significant differences in distribution of responses among males and females. We assume that in order to develop positive attitude of population to vaccination, and specifically to Russian-made vaccines, more extensive information campaign is needed to be implemented. Also, significant increase of percentage of vaccinated population can be achieved if clearly defined requirements for availability of COVID-19 vaccination would be adopted on the international level. Actually, this is key condition for restoring international mobility and removing restrictions in national economies.
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Affiliation(s)
- S V Ryazantsev
- The Institute for Demographic Research of the Federal Research Sociological Center of The Russian Academy of Sciences, 119333, Moscow, Russia,
| | - M N Khramova
- The Institute for Demographic Research of the Federal Research Sociological Center of The Russian Academy of Sciences, 119333, Moscow, Russia
| | - A V Smirnov
- The Institute for Demographic Research of the Federal Research Sociological Center of The Russian Academy of Sciences, 119333, Moscow, Russia
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28
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Orlov SV, Beresneva DN, Zaraisky MI, Karal-Оgly DD, Parastaeva MM, Ivanova GT, Kucher AG, Kulikov AN, Smirnov AV, Kayukov IG. [Urinary miRNA expression in cynomolgus macaques (Macaca fascicularis) fed high salt rations]. Vopr Pitan 2021; 90:94-102. [PMID: 34538039 DOI: 10.33029/0042-8833-2021-90-4-94-102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/22/2021] [Indexed: 11/11/2022]
Abstract
High food intake of sodium chloride is associated with damage not only the cardiovascular system, but also the kidneys. The mechanisms of the potential negative effects of high-salt diets on the kidneys have not been established. The aim of the study was to trace the changes in relative expression of miRNA-21, 203 and 133 in urine of cynomolgus macaques (Macaca fascicularis) fed high-salt diet with and without isolated soy proteins. Material and methods. The object of the study was 18 male cynomolgus macaques (Macaca fascicularis) aged 6-8 years with a body weight of 5.1-9.7 kg. The animals were divided in 3 groups (6 individuals each). The animals of the first (control) group received a standard diet (2 g NaCl/kg feed). The animals of the second group were fed high-salt diet (8 g NaCl/kg feed), of the third - high-salt diet combined with SUPRO 760 isolated soy protein (200 g/kg feed; instead of milk and egg proteins, corn gluten). Access to water was free. The follow-up period in this study was 4 months. In animals blood pressure (BP) and relative level of microRNA (miRNA) expression in urine were measured. Results and discussion. Keeping monkeys on the studied diets for 4 months did not lead to significant changes in systolic or diastolic BP compared with the initial level. In the control group, there were no distinct changes in the expression of miRNA-21 in urine during observation. In the other two groups, there was a significant increase (approximately equally) of this parameter in comparison with the initial values. Both high-salt diets resulted in a significant increase in the relative level of expression of miRNA-133 and miRNA-203 in urine compared to basal values. However, the increase in these parameters in the group of animals fed a high-salt diet in combination with soy isolate was significantly less than in monkeys fed only a high-salt diet. Conclusion. Possible, potentially negative effects of high-salt diets on kidney may be mediated by epigenomic mechanisms and partially modulated by the inclusion of isolated soy proteins in the diet.
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Affiliation(s)
- S V Orlov
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation.,Research Institute of Medical Primatology, 354376, Sochi, Russian Federation
| | - D N Beresneva
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
| | - M I Zaraisky
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
| | - D D Karal-Оgly
- Research Institute of Medical Primatology, 354376, Sochi, Russian Federation
| | - M M Parastaeva
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
| | - G T Ivanova
- Pavlov Institute of Physiology, Russian Academy of Sciences, 199034, St. Petersburg, Russian Federation
| | - A G Kucher
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
| | - A N Kulikov
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
| | - A V Smirnov
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
| | - I G Kayukov
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, 197022, St. Petersburg, Russian Federation
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29
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Ryazantsev SV, Smirnov AV. [The preconditions of occurrence and social demographic consequences of pandemics]. Probl Sotsialnoi Gig Zdravookhranenniiai Istor Med 2021; 29:389-397. [PMID: 34190464 DOI: 10.32687/0869-866x-2021-29-3-389-397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 02/11/2021] [Indexed: 11/06/2022]
Abstract
The article considers the historical features of development and theoretical approaches to defining the concept of "pandemic" in social sciences. The approaches of demographic science to the study of the consequences of pandemics are outlined. The prerequisites of occurrence of major pandemics at various historical stages of humankind development are highlighted. The particular attention is paid to pandemics in the XXI century. The demographic and social economic consequences of pandemics for the countries all over the world, including the countries on post-Soviet territory, are considered. The characteristics of the COVID-19 pandemic are highlighted from the standpoint of social demographic consequences, including the impact on fertility and mortality. The key directions of pandemics control in some countries of the world are designated.
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Affiliation(s)
- S V Ryazantsev
- The Federal State Autonomous Educational Institution of Higher Education "Moscow State Institute of International relations (MGIMO University)" of the Ministry of Foreign Affairs of Russia, 119445 Moscow, Russia, .,The Institute for Demographic Research - Branch of the Federal Center of Theoretical and Applied Sociology of the Russian Academy of Sciences (IDR FCTAS RAS), 119333 Moscow, Russia
| | - A V Smirnov
- The Institute for Demographic Research - Branch of the Federal Center of Theoretical and Applied Sociology of the Russian Academy of Sciences (IDR FCTAS RAS), 119333 Moscow, Russia
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30
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Fainstein IA, Ivanov YV, Ishchenko RV, Panchenkov DN, Smirnov AV, Stankevich VR. [Cancer of terminal part of common bile duct in a patient with heterotaxy syndrome]. Khirurgiia (Mosk) 2021:58-63. [PMID: 33759470 DOI: 10.17116/hirurgia202104158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Case report is devoted to successful pancreatectomy for cancer of terminal part of common bile duct in a patient with heterotaxy syndrome. The main difficulties during dissection of pancreaticoduodenal complex arose due to anatomical disorientation and the lack of standard topographic and anatomical landmarks. Preoperative computed tomography with assessment of visceral vessel anatomy is essential in all patients with biliopancreaticoduodenal tumors. If heterotaxy syndrome is suspected, additional examination is required to detect other potential abnormalities and prepare for unusual situation.
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Affiliation(s)
- I A Fainstein
- Blokhin National Medical Research Center of Oncology, Moscow, Russia
| | - Yu V Ivanov
- Federal Research and Clinical Center of Specialized Types of Medical Care and Medical Technologies, Moscow, Russia.,Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - R V Ishchenko
- Federal Research and Clinical Center of Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
| | - D N Panchenkov
- Federal Research and Clinical Center of Specialized Types of Medical Care and Medical Technologies, Moscow, Russia.,Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - A V Smirnov
- Federal Research and Clinical Center of Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
| | - V R Stankevich
- Federal Research and Clinical Center of Specialized Types of Medical Care and Medical Technologies, Moscow, Russia
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31
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Smirnov AV, Ponomarev AV. Multicriteria Context-Driven Recommender Systems: Model and Method. Sci Tech Inf Proc 2021. [DOI: 10.3103/s014768822005007x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Sharobaro VI, Ivanov YV, Sharobaro VI, Smirnov AV. [Abdominal pseudohernia: diagnosis and treatment]. Khirurgiia (Mosk) 2021:72-80. [PMID: 34941212 DOI: 10.17116/hirurgia202112172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To present an effective treatment strategy for abdominal pseudohernia considering own clinical experience and literature data. MATERIAL AND METHODS The authors report surgical treatment of 2 patients and therapeutic management of 1 patient with abdominal pseudohernia. Moreover, current state of this problem is analyzed according to literature data in Pubmed, Google and e-library databases. RESULTS. P Seudohernia is followed by asymmetrical protrusion of abdominal wall, prolapsed site is not involved in breathing; patients cannot tense muscles in the affected area. T8-L2 skin sensitivity impairment or hyperesthesia may be observed. Denervation is confirmed by electroneuromyography. Ultrasound, CT and MRI reveal no defect in abdominal wall. However, its thinning within denervation area is visualized. Treatment is determined by the cause and reversibility of denervation. If mechanical damage (intersection) of T8-L2 nerves following trauma or any manipulation is absent, the main cause is herpes zoster neuropathy. Surgical treatment is not indicated. Antiherpetic therapy and physical therapy result functional restoration of abdominal wall muscles within 2-4 months. In case of mechanical cause of pseudohernia, it is advisable to wait at least a year after denervation for real assessment of situation. Partial or complete re-innervation is possible throughout this period. Surgical treatment is indicated if re-innervation is absent. An effective technique presented in this manuscript is reconstruction of the prolapsed area with several imbrication sutures in several planes up to symmetry with contralateral area with subsequent reinforcement with a mesh implant if necessary. There were no relapses in 2 our patients within 5 and 7 years, respectively. CONCLUSION In our opinion, this report is the first manuscript devoted to systematic analysis of diagnosis and treatment of abdominal pseudohernia in available literature. Surgical treatment is not indicated for postherpetic pseudohernia. It is carried out for pseudohernia persisting for more than 1 year if its cause is trauma or any manipulation.
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Affiliation(s)
- V I Sharobaro
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - Yu V Ivanov
- Federal Scientific and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia
- Central Research Institute of Tuberculosis, Moscow, Russia
| | | | - A V Smirnov
- Federal Scientific and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia
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Sivtsov EV, Kalinin AV, Gostev AI, Smirnov AV, Agibalova LV, Shumilov FA. In Situ Preparation of Polymer Nanocomposites Based on Sols of Surface-Modified Detonation Nanodiamonds by Classical and Controlled Radical Polymerization. Polym Sci Ser B 2020. [DOI: 10.1134/s1560090420050139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lebedev KI, Sipovsky VG, Smirnov AV. [Retrospective clinical and morphological analysis of patients with AL amyloidosis (the 2008 to 2015 nephrobiopsies)]. Arkh Patol 2020; 82:29-35. [PMID: 33274623 DOI: 10.17116/patol20208206129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To study correlations between the clinical signs of dysfunction and pathological structural changes in the renal parenchyma in a group of Russian patients with AL amyloidosis in 2008-2015. SUBJECTS AND METHODS A total group (At) including Group 1 with AL (kappa + lambda light chains) (n=46) was divided into subgroups: 2λ) 40 patients with AL-lambda (AL-λ); 3κ) 6 patients with AL-kappa (AL-κ). All the patients underwent standard laboratory and instrumental studies: determinations of the peak systolic and diastolic blood pressures (SBP and DBP, respectively, mm Hg), glomerular filtration rate (GFR) (ml/min/1.73 m2) by the EPI equation, daily protein loss (g/day). Polyclonal antibodies against kappa and lambda light chains, AA component, and transthyretin (DAKO, Denmark) were used as immunomorphological markers. Light optical structural changes were semiquantitatively assessed, by ranking the following analyzed sign: interstitial focal sclerosis (FS), tubular atrophy (TA), interstitial inflammatory infiltration (II) semi-quantitatively (0 - no; 1 - < 25%; 2 - <50%, 3 - >50% of the volume of a histological compartment). Glomerulosclerosis (GS) was defined as the percentage of sclerotic glomeruli. The extent of amyloid depositions in the renal parenchyma structures was estimated according to the procedure proposed by Ying Yao et al., 2013. RESULTS The AL group showed a female preponderance (65.21%). The patients' mean age was 62±11 years. There were no significant differences in daily proteinuria and the levels of serum creatinine, GFR, SBP, and DBP between the groups. The predominant clinical manifestation in the patients was nephrotic syndrome. A comparative analysis of the pathomorphological criteria for the spread of amyloid masses and the markers of fibroplastic processes revealed no statistically significant differences in the studied groups. Correlation analysis of the spread of AL deposits in the renal parenchyma in the patients of Group 1 and Subgroup 2λ, as well as laboratory data showed that there were significant (p<0.05) correlations with GFR, serum creatinine, unlike in Subgroup 3κ. At the same time, the analysis demonstrated that daily proteinuria had a significant positive correlation with VA, IA, GA, and TA values in Subgroup 3κ, unlike in Group 1 and Subgroup 2λ. Positive correlations were found between glomerulosclerosis and VA in Subgroup 2 λ and IA in Group 1. Sclerotic (FS and TA) changes in the tubular interstitium (TIN) were significantly positively correlated with all the indicators of AL (GA, VA, IA, TA) in the examinees in Group 1 and Subgroup 2λ, but not in Subgroup 3κ. Inflammatory TIN infiltration showed statistically significant (p<0.05) positive correlations with IA and VA in Group 1 and Subgroup 2λ and their absence in subgroup 3κ. CONCLUSION : The retrospective analysis of nephrobiopsy specimens from of patients with AL amyloidosis revealed that kidney damage was mainly associated with the development of λ-associated AL amyloidosis. The clinical and laboratory parameters were correlated with the pathomorphological criteria for loading the renal parenchyma with amyloid masses. The findings suggest that there are clinical and morphological features of the subclasses of AL amyloidosis, which may be of value for predicting the course and progression of the disease.
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Affiliation(s)
- K I Lebedev
- Acad. I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Health of Russia, Saint Petersburg, Russia
| | - V G Sipovsky
- Acad. I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Health of Russia, Saint Petersburg, Russia
| | - A V Smirnov
- Acad. I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Health of Russia, Saint Petersburg, Russia
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Ivanov YV, Stankevich VR, Sharobaro VI, Panchenkov DN, Smirnov AV, Zlobin AI, Zvezdkina EA. [Simultaneous surgery for complicated giant post-traumatic phrenic hernia in a patient with morbid obesity and diabetes mellitus type II]. Khirurgiia (Mosk) 2020:75-79. [PMID: 33030005 DOI: 10.17116/hirurgia202009175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Surgical treatment of post-traumatic right-sided phrenic hernia is associated with certain technical difficulties due to topographic and anatomical features. Morbid obesity combined with diabetes mellitus type II is one of the main factors complicating any surgical thoracic or abdominal surgery and further rehabilitation. We report simultaneous surgery for complicated post-traumatic right-sided phrenic hernia in a patient with morbid obesity and diabetes mellitus type II. Surgical correction of giant phrenic hernia facilitated further effective treatment of morbid obesity and concomitant diabetes mellitus type II.
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Affiliation(s)
- Yu V Ivanov
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia.,Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - V R Stankevich
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia
| | - V I Sharobaro
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia
| | - D N Panchenkov
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia.,Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - A V Smirnov
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia
| | - A I Zlobin
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia.,Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - E A Zvezdkina
- Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Moscow, Russia
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Ekova MR, Smirnov AV, Tyurenkov IN, Grigor'eva NV. Peculiarities of the Expression of Inducible NO Synthase in Rat Dentate Gyrus in Depression Modeling. Bull Exp Biol Med 2020; 169:718-720. [PMID: 32990853 DOI: 10.1007/s10517-020-04963-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Indexed: 10/23/2022]
Abstract
Mild stress exposure contributes to the development of cognitive and emotional deficits, is considered as a model of depressive state, and is characterized by enhanced NO production. In albino mature (12-month-old) male rats, the depressive state was simulated by daily 30-min exposure to stressful stimuli (vibration, loud sound, and strobe light) over 7 days in a special chamber. On paraffin frontal sections of the brain stained with antibodies against inducible NO synthase (iNOS), the expression and distribution pattern of immunoreactive material were evaluated in various layers of the dentate gyrus under normal conditions and after depression modeling. The relative area of iNOS expression in the dentate gyrus of control rats was 8.2 (7.1-9.9)%, while in rats with experimental depression, this parameter was 16.7 (10.5-22.1)%, i.e. increased by 8.5% (p<0.05). In mature rats with modeled depressive state, the expression and relative area of iNOS expression in neuronal perikarya in the granular and subgranular layers of the dentate gyrus increased, which can underlie the mechanisms of damage and determine reduced neuroplasticity and suppressed neurogenesis in the dentate gyrus in rats during adulthood.
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Affiliation(s)
- M R Ekova
- Volgograd State Medical University, the Ministry of Health of Russian Federation, Volgograd, Russia.
| | - A V Smirnov
- Volgograd State Medical University, the Ministry of Health of Russian Federation, Volgograd, Russia.,Volgograd Medical Research Center, Volgograd, Russia
| | - I N Tyurenkov
- Volgograd State Medical University, the Ministry of Health of Russian Federation, Volgograd, Russia
| | - N V Grigor'eva
- Volgograd State Medical University, the Ministry of Health of Russian Federation, Volgograd, Russia
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Tyurenkov IN, Kurkin DV, Kalatanova AV, Dorotenko AR, Bakulin DA, Morkovin EI, Verholyak DV, Gorbunova YV, Atapina NV, Smirnov AV, Schmidt MV. [Comparative study of protective effects of Cortexin, Cerebrolysin and Actovegin on memory impairment, cerebral circulation and morphological changes in the hippocampus of rats with chronic brain ischemia]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:83-89. [PMID: 32929929 DOI: 10.17116/jnevro202012008183] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To compare the effects of cortexin, cerebrolysin and actovegin on memory impairment, cerebral circulation and morphological changes in the hippocampus of rats with chronic brain ischemia. MATERIAL AND METHODS The study was conducted using male rats with chronic brain ischemia caused by stenosis of the common carotid arteries by 50%. Animals received cortexin (0,3; 1 or 3 mg/kg), cerebrolysin (0,8; 2,5 or 7,5 ml/kg) and actovegin (5 ml/kg) in two 10-day courses with 10 days of treatment break. The severity of cognitive impairment was evaluated using the Morris water maze, passive and active avoidance tests. Cerebral circulation using laser flowmetry and brain hippocampus structures were studied in the end of treatment. RESULTS Cognitive impairment in animals with chronic brain ischemia was accompanied by the development of pathological changes in the CA1 and CA4 regions of the hippocampus. Administration of cortexin (1 and 3 mg/kg) and cerebrolysin (2.5 and 7.5 ml/kg) to rats with chronic brain ischemia had almost no effect on cerebral blood flow, but contributed to the improvement in memory formation and retrieval processes in the Morris water maze. The treatment effect was comparable for both drugs and persisted after 10 days of treatment break. Morphological assessment showed a decrease in the severity of pathological changes in the hippocampal regions. CONCLUSION The course-administration of cortexin and cerebrolysin lead to a decrease in the severity of memory impairment and pathomorphological changes in the hippocampus in rats with chronic brain ischemia.
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Affiliation(s)
- I N Tyurenkov
- Volgograd State Medical University, Volgograd, Russia
| | - D V Kurkin
- Volgograd State Medical University, Volgograd, Russia
| | | | | | - D A Bakulin
- Volgograd State Medical University, Volgograd, Russia
| | - E I Morkovin
- Volgograd State Medical University, Volgograd, Russia
| | - D V Verholyak
- Volgograd State Medical University, Volgograd, Russia
| | | | - N V Atapina
- Volgograd State Medical University, Volgograd, Russia
| | - A V Smirnov
- Volgograd State Medical University, Volgograd, Russia
| | - M V Schmidt
- Volgograd State Medical University, Volgograd, Russia
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Smirnov AV, Afanasyev BV, Poddubnaya IV, Dobronravov VA, Khrabrova MS, Zakharova EV, Nikitin EA, Lysenko Kozlovskaya LV, Bobkova IN, Rameev VV, Batyushin MM, Moiseev IS, Darskaya EI, Pirogova OV, Mendeleeva LP, Biryukova LS. [Monoclonal gammopathy of renal significance: consensus of hematologists and nephrologists of Russia on the establishment of nosology, diagnostic approach and rationale for clone specific treatment]. TERAPEVT ARKH 2020; 92:10-22. [PMID: 33346441 DOI: 10.26442/00403660.2020.07.000659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Indexed: 11/22/2022]
Abstract
Monoclonal gammopathy of renal significance (MGRS) is a new nosology in modern nephrology and oncohematology. MGRS is defined as kidney injury due to nephrotoxic monoclonal immunoglobulin produced by the B-cell line clone which does not reach the hematological criteria for specific treatment initiation. Monoclonal proteins pathological effects on kidney parenchyma result in irreversible decline of kidney function till the end stage renal disease that in line with the position of International Consensus of hematologists and nephrologists determinates critical necessity for clone specific treatment in patients with MGRS despite the absence of hematological indications for treatment initiation. Main challenge of MGRS in Russian Federation is an inaccessibility of an in-time diagnostic and appropriate treatment for the great majority of patients due to the following reasons: 1) limited knowledge about the MGRS among hematologists and nephrologists; 2) lack of necessary diagnostic resources in most health-care facilities; 3) lack of approved clinical recommendations and medical economic standards for treatment of this pathological entity. Consensus document comprises the opinion of experts leading nephrologists and hematologists of Russian Federation on the problem of MGRS including the incoherence in nosology classification, diagnostics approach and rationale for clone specific treatment. Consensus document is based on conclusions and agreements reached during the conference of leading nephrologists and hematologists of Russia which was held in the framework of symposia Plasma cell dyscrasias and lymphoproliferative diseases: modern approaches to therapy, 1516 of March 2019, Pavlov First Saint Petersburg State Medical University. The present Consensus is intended to define the principal practical steps to resolve the problem of MGRS in Russian Federation that are summarized as final clauses.
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Affiliation(s)
- A V Smirnov
- Pavlov First Saint Petersburg State Medical University
| | - B V Afanasyev
- Pavlov First Saint Petersburg State Medical University
| | - I V Poddubnaya
- Russian Medical Academy of Continuous Professional Education
| | | | - M S Khrabrova
- Pavlov First Saint Petersburg State Medical University
| | - E V Zakharova
- Russian Medical Academy of Continuous Professional Education.,Yevdokimov Moscow State University of Medicine and Dentistry.,Botkin City Clinical Hospital
| | - E A Nikitin
- Russian Medical Academy of Continuous Professional Education.,Botkin City Clinical Hospital
| | | | - I N Bobkova
- Sechenov First Moscow State Medical University (Sechenov University)
| | - V V Rameev
- Sechenov First Moscow State Medical University (Sechenov University)
| | | | - I S Moiseev
- Pavlov First Saint Petersburg State Medical University
| | - E I Darskaya
- Pavlov First Saint Petersburg State Medical University
| | - O V Pirogova
- Pavlov First Saint Petersburg State Medical University
| | | | - L S Biryukova
- Russian Medical Academy of Continuous Professional Education.,National Research Center for Hematology
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Ilyushin MA, Shugalei IV, Tverjanovich AS, Smirnov AV. Influence of the Mechanism of the Initial Stages of the Ligand Decomposition on the Initiating Ability of Cobalt(III) Ammine Tetrazolate Complexes. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220040131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Guliy OI, Simakov VV, Karavaeva OA, Smirnov AV. Immobilization of Microbial Cells on Polymeric Matrices Modified by Plasma Treatment. APPL BIOCHEM MICRO+ 2020. [DOI: 10.1134/s0003683820020076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sipovsky VG, Nevorotin AI, Avsiewitsch IV, Smirnov AV. [Ultrastructural study of podocyte alterations in non proliferative glomerulopathy]. Arkh Patol 2019; 81:51-58. [PMID: 31317931 DOI: 10.17116/patol20198103151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Ultrastructural changes in podocytes are an important diagnostic and prognostic marker for nephropathies. However, the biomedical understanding of detected submicroscopic changes in podocytes remains controversial. OBJECTIVE To investigate the relationship between the ultrastructural changes of podocytes (fusion of cytopodia and denudation of the basement membrane as a result of their desquamation) with a number of clinical and laboratory indicators of kidney dysfunction in case of non-proliferative glomerulopathies (NPGP). Thirty-seven patients (23 men, 14 women) with NPGP, including 8 with focal segmental glomerulosclerosis (FSGS), 17 with membranous nephropathy (MN), and 12 with minimal change disease (MCD), were examined. SUBJECT AND METHODS All the patients underwent standard laboratory and instrumental studies: determinations of the levels of total serum cholesterol (mmol/l), total serum protein (g/l); serum albumin (g/l); CKD-EPI glomerular filtration rate (GFR) (ml/min/1.73 m2), and daily protein loss (g/day). Light optical changes were measured; completely sclerotic and/or focally segmentally sclerotic glomeruli were taken into account. Quantitative ultrastructural stereological analysis was carried out estimating the cytopodium width (CPW) and the degree of glomerular basement membrane denudation (GBMD) (%). RESULTS NPGP cases showed the largest number of sclerotic glomeruli in FSGS, which was accompanied by the lowest level of daily proteinuria and GFR. Quantitative values of CPW were associated with the level of daily protein loss (r=0.47; p < 0.05) and serum albumin (r=-0.57; p <0.05) in patients with nephrotic syndrome. In MN, the absolute value of CPW was larger than that in the other two patient groups. A correlation analysis of CPW and GBMD values among patients with NPGP revealed a statistically insignificant negative relation between these morphometric parameters. However, when a subgroup of patients with podocytopathies (only MCD and FSGS) was identified in the study group, this relationship was found to be significant (r=-0.54; p=0.012). CONCLUSION The patients with NPGP exhibited a relationship between the severity of nephrotic syndrome and proteinuria/hypoalbuminemia, on the one hand, and CPW, on the other. The established negative relationship between CPW and the percentage of GBMD in the subgroup of patients with podocytopathies may be due to the early stages of podocyte injury, which are accompanied by transient GBMD.
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Affiliation(s)
- V G Sipovsky
- Acad. I.P. Pavlov First Saint Petersburg State Medical University, Ministry of Health of Russia, Saint-Petersburg, Russia
| | - A I Nevorotin
- Acad. I.P. Pavlov First Saint Petersburg State Medical University, Ministry of Health of Russia, Saint-Petersburg, Russia
| | - I V Avsiewitsch
- Acad. I.P. Pavlov First Saint Petersburg State Medical University, Ministry of Health of Russia, Saint-Petersburg, Russia
| | - A V Smirnov
- Acad. I.P. Pavlov First Saint Petersburg State Medical University, Ministry of Health of Russia, Saint-Petersburg, Russia
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Abstract
AIM Analysis of etiology, clinical and morphological manifestations, approaches to therapy and prognosis of membranoproliferative glomerulonephritis (MPGN). MATERIALS AND METHODS Cases of MPGN were retrospectively identified in the period 2000-2017 with subsequent analysis of etiology, clinical data and morphology (including deposits of immunoglobulins (Ig) and C3 complement fractions). The achievement of complete and partial remissions (PR, CR), overall survival, progression (by composite endpoint: decrease in the estimated GFR (eGFR) ≥50% from the baseline or eGFR <15 ml/min/1.73 m2 or the onset of dialysis). RESULTS 214 cases of MPGN entered the study with the average age of 44±16 years. Most patients had nephrotic syndrome and significant hematuria. In 58.4% of cases, eGFR was <60 mL/min/1.73 m2, and every fifth patient had CKD 4 or 5 stages. The prevalence of MPGN among all biopsy-confirmed glomerulopathies was 9.3%. Idiopathic MPGN (iMPGN) was detected in 30.4% of cases, secondary MSGN (sMPGN) - in 69.6% (autoimmune diseases - 34.1%, infectious diseases - 16.4%, monoclonal gammopathies - 9.3%, complement-mediated damage - 9.8%). Ig+C3+MPGN was mainly associated with autoimmune diseases and infections; C3-glomerulopathy or thrombotic microangiopathy were most often causes of Ig-C3+MPGN; Ig-C3-/Ig+C3-MPGN had heterogeneous etiology. The median follow-up period was 28 [7; 37] months. The 10-year total cumulative patient and renal survival rates were 71 and 50%, respectively (without differences between sMPGN and iMPGN). The frequency of the PR/CR was 50% (iMPGN - 46.2%, sMPGN - 51.3%) depending on the etiology of the MPGN (p=0.049). The cumulative 10-year progression-free renal survival was nearly 100% in cases with PR/CR and 0% in non-responders. CONCLUSION MPGN is a severe variant of glomerular damage with a heterogeneous etiological structure and an unfavorable prognosis. Targeted clinical and morphological diagnostics of MPGN allows to identify the cause of the disease in most cases. This approach is reliable for the adequate treatment choice and improvement of outcomes in MPGN.
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Affiliation(s)
- V A Dobronravov
- Research Institute of Nephrology, I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Health of the Russian Federation, Saint Petersburg, Russia
| | - A V Smirnov
- Research Institute of Nephrology, I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Health of the Russian Federation, Saint Petersburg, Russia
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Abstract
Larval paragonimiasis is a parasitic disease caused by lung fluke larvae. Unlike the classic form of paragonimiasis, the larval form occurs with a large number of clinical manifestations. However, this fact only complicates the diagnosis of larval paragonimiasis, for the abundance of clinical manifestations results in the misdiagnosis of other diseases. Another feature of this form of paragonimiasis is the tendency to generalize and mimic the clinical presentation of malignant neoplasms. The performed diagnostic measures failed to give an accurate view of the nature of the disease, therefore diagnostic thoracoscopy was carried out and biopsy specimens were taken from the subpleural region of dissemination, followed by urgent histologic examination suggestive of glandular cancer. This circumstance became the reason for atypical resection of the affected portion, which was done; however, the patient died from pulmonary thromboembolism on postoperative day 2. The main diagnosis of chronic pulmonary generalized paragonimiasis (cystic and pneumosclerotic phases) with neoplastic syndrome was posthumously made.
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Affiliation(s)
- V V Ermilov
- Department of Pathologic Anatomy, Department of Forensic Medicine, Department of Biology, Volgograd State Medical University, Ministry of Health of the Russia, Volgograd, Russia
| | - A V Smirnov
- Department of Pathologic Anatomy, Department of Forensic Medicine, Department of Biology, Volgograd State Medical University, Ministry of Health of the Russia, Volgograd, Russia
| | - G L Snigur
- Department of Pathologic Anatomy, Department of Forensic Medicine, Department of Biology, Volgograd State Medical University, Ministry of Health of the Russia, Volgograd, Russia
| | - R S Dudin
- Department of Pathologic Anatomy, Department of Forensic Medicine, Department of Biology, Volgograd State Medical University, Ministry of Health of the Russia, Volgograd, Russia
| | - S S Popov
- Department of Pathologic Anatomy, Department of Forensic Medicine, Department of Biology, Volgograd State Medical University, Ministry of Health of the Russia, Volgograd, Russia
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Erdes SF, Rebrov AP, Dubinina TV, Badokin VV, Bochkova AG, Bugrova OV, Gaydukova IZ, Godzenko AA, Dubikov AA, Ivanova ON, Korotaeva TV, Lapshina SA, Nesmeyanova OB, Nikishina IP, Otteva EN, Raskina TA, Rumyantseva OA, Sitalo AV, Smirnov AV. [Spondyloarthritis: modern terminology and definitions]. TERAPEVT ARKH 2019; 91:84-88. [PMID: 32598681 DOI: 10.26442/00403660.2019.05.000208] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Indexed: 11/22/2022]
Abstract
Aim to identify outdated terms and make changes to the terminology of spondyloarthritis. MATERIALS AND METHODS At the first stage of the work, the terms divided into two categories: "outdated" definitions and terms that need to be improved or unified. Subsequently, each member of the Expert Group of Spondyloarthritis at the Association of Rheumatologists of Russia (ExSpA) presented by its own definition of the designated term or agreed with the previous term. At the next stage, the existing definitions were put together. After discussion, experts left a term that scored at least 2/3 of the votes. The special opinion of experts was recorded, whose did not coincide with the majority opinion. An open vote was conducted, when defining an "outdated" term with the unanimous decision of all group members, this term was not recommended for further clinical use. RESULTS The work carried out allowed us to identify a number of terms that are not recommended for use in clinical practice. Number of terms are defined, which should be used when discussing the problem of spondyloarthritis. CONCLUSION The Expert Group of Spondyloarthritis at the Association of Rheumatologists of Russia suggests using or, accordingly, not using a number of terms and their definitions in clinical practice.
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Affiliation(s)
- S F Erdes
- V.A. Nasonova Scientific and Research Institute of Rheumatology
| | - A P Rebrov
- V.I. Razumovsky Saratov State Medical University
| | - T V Dubinina
- V.A. Nasonova Scientific and Research Institute of Rheumatology
| | - V V Badokin
- Federal State Budgetary Educational Institution of Further Professional Education "Russian Medical Academy of Postgraduate Education"
| | | | | | - I Z Gaydukova
- I.I. Mechnikov North-Western State Medical University
| | - A A Godzenko
- Federal State Budgetary Educational Institution of Further Professional Education "Russian Medical Academy of Postgraduate Education"
| | | | | | - T V Korotaeva
- V.A. Nasonova Scientific and Research Institute of Rheumatology
| | | | | | - I P Nikishina
- V.A. Nasonova Scientific and Research Institute of Rheumatology
| | - E N Otteva
- Postgraduate Institute for Public Health Workers
| | | | - O A Rumyantseva
- V.A. Nasonova Scientific and Research Institute of Rheumatology
| | | | - A V Smirnov
- V.A. Nasonova Scientific and Research Institute of Rheumatology
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Gorin DS, Zakharova MA, Smirnov AV, Kriger AG. [The mistakes in diagnosis of pancreatic intraductal papillary mucinous tumor]. Khirurgiia (Mosk) 2019:96-100. [PMID: 30855598 DOI: 10.17116/hirurgia201902186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
It is presented surgical treatment of the patient with pancreatic intraductal papillary mucinous tumor who was under observation with diagnosis of chronic pancreatitis for a long time. Recurrent tumor with possible malignant transformation to carcinoma was suspected in 5 years after pancreaticoduodenectomy. It was supposed to perform pancreatic stump extirpation. Redo surgery did not reveal any tumor. The cause of recurrent pain was pancreatic duct obliteration at the level of anastomosis.
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Affiliation(s)
- D S Gorin
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of the Russia, Moscow, Russia
| | - M A Zakharova
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of the Russia, Moscow, Russia
| | - A V Smirnov
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of the Russia, Moscow, Russia
| | - A G Kriger
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of the Russia, Moscow, Russia
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Fedorov BA, Smirnov AV, Yaroshenko VV, Porozov YB. SASCUBE: An Updated Method of Cubes for Calculation of the Intensity of X-Ray Scattering by Biopolymers in Solution. Biophysics (Nagoya-shi) 2019. [DOI: 10.1134/s0006350919010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Abstract
OBJECTIVE To evaluate quality of life in long-term postoperative period in patients with chronic pancreatitis. MATERIAL AND METHODS There were 31 (21 males and 10 females) patients with complicated forms of chronic pancreatitis who underwent surgery in 2015-2017. Mean age was 49 (44; 53) years, body mass index - 22.4 (20.4; 24) kg/m2. HR-QOL was determined using the questionnaires SF-36, QLQ EORTS C30, VAS. Postoperative control was made no earlier than 6 months after surgery. Median follow-up 11.5 months. The data were analyzed using non-parametric methods. Quantitative data are shown as median with interquartile range. Differences between quantitative values were determined using the Mann-Whitney test. RESULTS Physical status value (SF-36) before surgery was 30.5 (24.8; 37.5), after surgery - 50.8 (46.7; 56.5). Mental status value was 30.2 (26.7; 36.4) prior to surgery and 53.8 (48.7; 57.3) after operation. Improvement of QoL (QLQ C30) from 29.17 (0; 50.0) before surgery to 75.0 (54.2; 83.3) after operation was observed. VAS-score of pain severity was 8 (8; 10) prior to surgery and 3 (2; 5) after surgery. Differences were significant (p<0.05). CONCLUSION Surgical treatment of complicated chronic pancreatitis significantly reduces pain and improves HR-QoL. However, recurrent symptoms of chronic pancreatitis in long-term period cannot be excluded due to short follow-up period (median less than one year). The further investigation is needed.
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Affiliation(s)
- M A Zakharova
- Vishnevsky National Medical Research Center for Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Smirnov
- Vishnevsky National Medical Research Center for Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - D S Gorin
- Vishnevsky National Medical Research Center for Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - E A Vorobyeva
- Vishnevsky National Medical Research Center for Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - A G Kriger
- Vishnevsky National Medical Research Center for Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
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49
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Abstract
INTRODUCTION:Renal injury associated with monoclonal gammopathies (MG) is an area of interest of practical onconephrology. Prevalence, spectrum and renal outcome as far as approaches to treatment in this pathological entity, particularly in Russian population, still remain unclear and need refinement. AIM: Analysis of the prevalence, spectrum, treatment approaches and renal outcome in kidney injury associated with monoclonal gammopathies (MG).PATIENTS AND METHODS:Patients with MG and renal injury proven by kidney biopsies from 01.01.2011 till 01.05.2018 were enrolled into this one-center prospective study (n=119). Cases of MG of undetermined significance and non-amyloid kidney lesions were estimated as MG of renal significance (MGRS). Treatment approaches, haematological and renal responses were analysed. Worsening of kidney function was estimated as eGFR decrease >25 % from initial value or initiation of renal replacement treatment (RRT), improving – as eGFR increase >25 % from the initial value or the discontinuation of RRT. Other cases were determined as stable kidney function. Kidney outcome was determined in RRT initiation or eGFR<15 ml/min/1,73m2 at the end of follow-up. Long-term kidney outcome was estimated by Kaplan-Meier survival analysis. The median follow-up period was 12 (2; 27) months.RESULTS.Prevalence of kidney injury associated with MG among all performed kidney biopsies was 7,5 %, MGRS – 0,94 %. Multiple myeloma (MM), AL-amyloidosis and lymphoproliferative disorder (LPD) were diagnosed in 39, 55 and 10 patients, respectively. Prevalence of kidney injury types was the following: Al-amyloidosis (53 %); cast nephropathy (12 %); light chain deposition disease (12 %); C3-glomerulopathy (3 %); proliferative glomerulonephritis (GN) with monoclonal immunoglobulin deposits (3 %); cryoglobulinemic GN (2 %); thrombotic microangiopathy (2 %); podocytopathy (2 %); acute tubular necrosis – 2 %; immunotactoid GN (1 %); fibrillary GN (1 %); proximal tubulopathy (1 %), combination of different types (6 %). Patients mostly were treated with bortezomib and dexamethasone. Autologous stem cell transplantation was performed in 13 patients. Haematological response was achieved in 48,8 %, 45,4 % and 46,7 % of patients with MM, AL-amyloidosis and MGRS, respectively. Worsening of kidney function was registered in 11,1 % of MM and in 37,2 % of AL-amyloidosis; improving or stable kidney function was in 88,9 % and 62,7 % MM and AL-amyloidosis patients, respectively. In MGRS improving (20 %) and stable kidney function (80 %) were detected. Four-years cumulative renal survival in MM, AL-amyloidosis, MGRS and LPD groups was 63 %, 54 %, 80 % and 39 %, respectively, and does not differ between 4 groups.CONCLUSION:MG-associated kidney disease represented by diverse clinical and morphological patterns is standard problem in routine clinical practice. It is associated with inferior renal outcome and requires a practical implementation of highly-specialized interdisciplinary approach to diagnostics and treatment.
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Affiliation(s)
- M. S. Khrabrova
- Department of Propedeutics of Internal Diseases, First Pavlov Saint-Petersburg State Medical University
| | - V. A. Dobronravov
- Research Institute of Nephrology, First Pavlov Saint-Petersburg State Medical University
| | - A. V. Smirnov
- Research Institute of Nephrology, First Pavlov Saint-Petersburg State Medical University
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50
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Kriger AG, Karmazanovsky GG, Smirnov AV, Kharazov AF, Gorin DS, Raevskaya MB, Galkin GV, Revishvili AS. [Diagnosis and treatment of pancreatic head cancer followed by mesenteric-portal vein invasion]. Khirurgiia (Mosk) 2018:21-29. [PMID: 30560841 DOI: 10.17116/hirurgia201812121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIM To evaluate the outcomes of pancreaticoduodenectomy with mesenteric-portal vein resection for pancreatic head cancer. MATERIAL AND METHODS Retrospective analysis included 124 patients with pancreatic head cancer for the period 2010-2017. Mesenteric-portal vein (MPV) invasion was diagnosed in 37 (29.8%) patients, tumor contact with superior mesenteric artery as a borderline resectable state was noted in 11 cases. All patients underwent pancreaticoduodenectomy with mesenteric-portal vein resection. RESULTS Vein invasion was histologically confirmed in 19 (51.3%) out of 37 patients. At the same time, arterial invasion was absent in 11 patients with a borderline resectable tumor. CT-associated overdiagnosis of venous wall invasion was 6.4%, intraoperative overdiagnosis - 87.5%. R0-resection was achieved in 88.5% after conventional pancreaticoduodenectomy and in 78.4% after pancreaticoduodenectomy followed by MPV resection. Median survival was 17 months, 2-year survival - 41%. Among 11 patients with a borderline resectable tumor median survival was 11 months. Pancreaticoduodenectomy without vein resection was followed by 2-year survival near 68.1%. Differences were significant (p=0.02). CONCLUSION Pancreaticoduodenectomy followed by MPV resection as the first stage of combined treatment of pancreatic head cancer is absolutely justified if circumferential involvement of the vein and contact with superior mesenteric artery or celiac trunk do not exceed 50%. Vein resection can provide R0-surgery in these cases.
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Affiliation(s)
- A G Kriger
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - G G Karmazanovsky
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - A V Smirnov
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - A F Kharazov
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - D S Gorin
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - M B Raevskaya
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - G V Galkin
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
| | - A Sh Revishvili
- Vishnevsky National Medical Research Center of Surgery of Healthcare Ministry of Russia, Moscow, Russia
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