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Nurmykhametova Z, Lesbekov T, Kaliyev R, Bekishev B, Jabayeva N, Novikova S, Faizov L, Vakhrushev I, Pya Y. Preliminary report of extracorporeal blood purification therapy in patients receiving LVAD: Cytosorb or Jafron HA330. J Extra Corpor Technol 2024; 56:10-15. [PMID: 38488713 PMCID: PMC10941830 DOI: 10.1051/ject/2023048] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/09/2023] [Indexed: 03/17/2024]
Abstract
BACKGROUND Left ventricular assist device (LVAD) candidates are at increased risk of immune dysregulation and infectious complications. To attenuate the elevated proinflammatory cytokine levels and associated adverse clinical outcomes, it has been postulated that extracorporeal blood purification could improve the overall survival rate and morbidity of patients undergoing LVAD implantation. METHODS We retrospectively reviewed prospectively collected data of 15 patients who underwent LVAD implantation at our center between January 2021 and March 2022. Of these, 15 (100%) who received HeartMate 3™ (St. Jude Medical, Abbott, MN, USA) device were eligible. Intraoperatively, patients were single randomized 1:1:1 to three groups: group 1, patients who received Cytosorb therapy (n = 5; installed in the CPB circuit); group 2, patients who received Jafron HA330 (n = 5; installed in the CPB circuit); and control group 3, patients who did not receive filter (n = 5; usual care, neither Cytosorb nor Jafron during CPB). Baseline patient characteristics and intraoperative data were compared between the groups. Blood sample analyses were performed to assess the levels of inflammatory markers (IL-1, 6, 8; CRP, Leukocyte, Lactate, PCT, NT-proBNP, TNF-α) in both preoperative and postoperative data. RESULTS Baseline patient characteristics were similar in all three groups. We found that IL1α; IL 6; IL8; Lactatedehydrogenase, PCT, pro-BNP, CRP; Leukocyte, and TNFα levels significantly increased with LVAD implantation and that neither Cytosorb nor Jafron influenced this response. In-hospital mortality and overall survival during follow-up were similar among the groups. CONCLUSION Our preliminary results showed that hemoadsorption therapy using Cytosorb or Jafron hemoadsorption (HA) 330 may not be clinically beneficial for patients with advanced heart failure undergoing LVAD implantation. Large prospective studies are needed to evaluate the potential role of HA therapy in improving outcomes in patients undergoing LVAD implantation.
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Affiliation(s)
- Zhuldyz Nurmykhametova
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Department of Perfusiology and Assisted Circulation Laboratory, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Timur Lesbekov
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Department of Adult Cardiac Surgery, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Rymbay Kaliyev
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Department of Perfusiology and Assisted Circulation Laboratory, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Bolat Bekishev
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Department of Anesthesiology and Intensive Care, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Nilufar Jabayeva
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Department of Anesthesiology and Intensive Care, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Svetlana Novikova
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Department of Adult Cardiac Surgery, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Linar Faizov
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Department of Perfusiology and Assisted Circulation Laboratory, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Ivan Vakhrushev
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Department of Anesthesiology and Intensive Care, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
| | - Yuriy Pya
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Department of Adult Cardiac Surgery, National Research Cardiac Surgery Center Astana 010000 Kazakhstan
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Tolstova T, Dotsenko E, Kozhin P, Novikova S, Zgoda V, Rusanov A, Luzgina N. The effect of TLR3 priming conditions on MSC immunosuppressive properties. Stem Cell Res Ther 2023; 14:344. [PMID: 38031182 PMCID: PMC10687850 DOI: 10.1186/s13287-023-03579-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/21/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Mesenchymal stromal cells (MSCs) have regenerative and immunomodulatory properties, making them suitable for cell therapy. Toll-like receptors (TLRs) in MSCs respond to viral load by secreting immunosuppressive or proinflammatory molecules. The expression of anti-inflammatory molecules in MSCs can be altered by the concentration and duration of exposure to the TLR3 ligand polyinosinic-polycytidylic acid (poly(I:C)). This study aimed to optimize the preconditioning of MSCs with poly(I:C) to increase immunosuppressive effects and to identify MSCs with activated TLR3 (prMSCs). METHODS Flow cytometry and histochemical staining were used to analyze MSCs for immunophenotype and differentiation potential. MSCs were exposed to poly(I:C) at 1 and 10 μg/mL for 1, 3, and 24 h, followed by determination of the expression of IDO1, WARS1, PD-L1, TSG-6, and PTGES2 and PGE2 secretion. MSCs and prMSCs were cocultured with intact (J-) and activated (J+) Jurkat T cells. The proportion of proliferating and apoptotic J+ and J- cells, IL-10 secretion, and IL-2 production after cocultivation with MSCs and prMSCs were measured. Liquid chromatography-mass spectrometry and bioinformatics analysis identified proteins linked to TLR3 activation in MSCs. RESULTS Poly(I:C) at 10 μg/mL during a 3-h incubation caused the highest expression of immunosuppression markers in MSCs. Activation of prMSCs caused a 18% decrease in proliferation and a one-third increase in apoptotic J+ cells compared to intact MSCs. Cocultures of prMSCs and Jurkat cells had increased IL-10 and decreased IL-2 in the conditioned medium. A proteomic study of MSCs and prMSCs identified 53 proteins with altered expression. Filtering the dataset with Gene Ontology and Reactome Pathway revealed that poly(I:C)-induced proteins activate the antiviral response. Protein‒protein interactions by String in prMSCs revealed that the antiviral response and IFN I signaling circuits were more active than in native MSCs. prMSCs expressed more cell adhesion proteins (ICAM-I and Galectin-3), PARP14, PSMB8, USP18, and GBP4, which may explain their anti-inflammatory effects on Jurkat cells. CONCLUSIONS TLR3 activation in MSCs is dependent on exposure time and poly(I:C) concentration. The maximum expression of immunosuppressive molecules was observed with 10 µg/mL poly(I:C) for 3-h preconditioning. This priming protocol for MSCs enhances the immunosuppressive effects of prMSCs on T cells.
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Affiliation(s)
- Tatiana Tolstova
- Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia, 119121
| | | | - Peter Kozhin
- Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia, 119121
| | - Svetlana Novikova
- Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia, 119121
| | - Victor Zgoda
- Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia, 119121
| | - Alexander Rusanov
- Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia, 119121.
| | - Nataliya Luzgina
- Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia, 119121
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3
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Voropaeva D, Novikova S, Stenina I, Yaroslavtsev A. Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries. Polymers (Basel) 2023; 15:4340. [PMID: 38006065 PMCID: PMC10674264 DOI: 10.3390/polym15224340] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/26/2023] Open
Abstract
The use of cation-exchange membranes as electrolytes for lithium metal batteries can prevent the formation of lithium dendrites during extended cycling and guarantee safe battery operation. In our study, the Nafion-212 membrane in lithium form solvated by a mixture of ethylene carbonate and propylene carbonate (EC-PC) was used as an electrolyte in a lithium metal battery with the LiFePO4 cathode. The Nafion-212-EC-PC electrolyte is electrochemically stable up to 6 V, indicating its suitability for high-energy density batteries. It has an ionic conductivity of 1.9 × 10-4 S/cm at 25 °C and a high lithium transference number. The symmetric Li|Nafion-212-EC-PC|Li cell shows a very low overvoltage of ~0.3 V at a current density of ±0.1 mA/cm2. At 25 °C, the LiFePO4|Nafion-212-EC-PC|Li battery exhibits a capacity of 141, 136, 125, and 100 mAh/g at 0.1, 0.2, 0.5, and 1C rates, respectively. It maintains a capacity of 120 mAh/g at 0 °C and 0.1C with stable performance for 50 charge/discharge cycles. The mechanism of conductivity and capacity retention at low temperatures is discussed.
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Affiliation(s)
| | | | | | - Andrey Yaroslavtsev
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky Avenue, 31, 119991 Moscow, Russia; (D.V.); (S.N.); (I.S.)
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Kalinina A, Semenova M, Bruter A, Varlamova E, Kubekina M, Pavlenko N, Silaeva Y, Deikin A, Antoshina E, Gorkova T, Trukhanova L, Salmina A, Novikova S, Voronkov D, Kazansky D, Khromykh L. Cyclophilin A as a Pro-Inflammatory Factor Exhibits Embryotoxic and Teratogenic Effects during Fetal Organogenesis. Int J Mol Sci 2023; 24:11279. [PMID: 37511039 PMCID: PMC10380070 DOI: 10.3390/ijms241411279] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/05/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
The precise balance of Th1, Th2, and Th17 cytokines is a key factor in successful pregnancy and normal embryonic development. However, to date, not all humoral factors that regulate and influence physiological pregnancy have been completely studied. Our data here pointed out cyclophilin A (CypA) as the adverse pro-inflammatory factor negatively affecting fetal development and associated with pregnancy complications. In different mouse models in vivo, we demonstrated dramatic embryotoxicity and teratogenicity of increased CypA levels during pregnancy. Using generated transgenic models, we showed that CypA overexpression in fetal tissues induced the death of all transgenic fetuses and complete miscarriage. Administration of recombinant human CypA in a high dose to pregnant females during fetal organogenesis (6.5-11.5 dpc) exhibited teratogenic effects, causing severe defects in the brain and bone development that could lead to malformations and postnatal behavioral and cognitive disorders in the offspring. Embryotoxic and teratogenic effects could be mediated by CypA-induced up-regulation of M1 macrophage polarization via activation of the STAT1/3 signaling pathways. Here, we propose secreted CypA as a novel marker of complicated pregnancy and a therapeutic target for the correction of pregnancy complications.
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Affiliation(s)
- Anastasiia Kalinina
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
| | - Maria Semenova
- Department of Embryology, Faculty of Biology, Moscow State University, 1/12 Leninskie Gory, Moscow 119992, Russia
| | - Alexandra Bruter
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov Street, Moscow 119334, Russia
| | - Ekaterina Varlamova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov Street, Moscow 119334, Russia
| | - Marina Kubekina
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov Street, Moscow 119334, Russia
| | - Natalia Pavlenko
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov Street, Moscow 119334, Russia
| | - Yulia Silaeva
- Core Facility Center, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilova Street, Moscow 119334, Russia
| | - Alexey Deikin
- United Center for Genetic Technologies, Belgorod State National Research University, 85 Pobedi Street, Belgorod 308001, Russia
| | - Elena Antoshina
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
| | - Tatyana Gorkova
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
| | - Lubov Trukhanova
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
| | - Alla Salmina
- Research Center of Neurology, 80 Volokolamskoye Shosse, Moscow 125367, Russia
| | - Svetlana Novikova
- Research Center of Neurology, 80 Volokolamskoye Shosse, Moscow 125367, Russia
| | - Dmitry Voronkov
- Research Center of Neurology, 80 Volokolamskoye Shosse, Moscow 125367, Russia
| | - Dmitry Kazansky
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
| | - Ludmila Khromykh
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, 24 Kashirskoe Shosse, Moscow 115478, Russia
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Tunakova Y, Novikova S, Valiev V, Baibakova E, Novikova K. The Use of Neural Network Modeling Methods to Determine Regional Threshold Values of Hydrochemical Indicators in the Environmental Monitoring System of Waterbodies. Sensors (Basel) 2023; 23:6160. [PMID: 37448009 DOI: 10.3390/s23136160] [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: 04/30/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023]
Abstract
The regulation of the anthropogenic load on waterbodies is carried out based on water quality standards that are determined using the threshold values of hydrochemical indicators. These applied standards should be defined both geographically and differentially, taking into account the regional specifics of the formation of surface water compositions. However, there is currently no unified approach to defining these regional standards. It is, therefore. appropriate to develop regional water quality standards utilizing modern technologies for the mathematical purpose of methods analysis using both experimental data sources and information system technologies. As suggested by the use of sets of chemical analysis and neural network cluster analysis, both methods of analysis and an expert assessment could identify surface water types as well as define the official regional threshold values of hydrochemical system indicators, to improve the adequacy of assessments and ensure the mathematical justification of developed standards. The process for testing the proposed approach was carried out, using the surface water resource objects in the territory of the Republic of Tatarstan as our example, in addition to using the results of long-term systematic measurements of informative hydrochemical indicators. In the first stage, typing was performed on surface waters using the neural network clustering method. Clustering was performed based on sets of determined hydrochemical parameters in Kohonen's self-organizing neural network. To assess the uniformity of data, groups in each of the selected clusters were represented by specialists in this subject area's region. To determine the regional threshold values of hydrochemical indicators, statistical data for the corresponding clusters were calculated, and the ranges of these values were used. The results of testing this proposed approach allowed us to recommend it for identifying surface water types, as well as to define the threshold values of hydrochemical indicators in the territory of any region with different surface water compositions.
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Affiliation(s)
- Yulia Tunakova
- Department of General Chemistry and Ecology, Kazan National Research Technical University Named after A.N. Tupolev-KAI, 10 K. Marx St., Kazan 420111, Russia
| | - Svetlana Novikova
- Department of Applied Mathematics and Computer Science, Kazan National Research Technical University Named after A.N. Tupolev-KAI, 10 K. Marx St., Kazan 420111, Russia
| | - Vsevolod Valiev
- Research Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Daurskaya St., Kazan 420087, Russia
| | - Evgenia Baibakova
- Department of General Chemistry and Ecology, Kazan National Research Technical University Named after A.N. Tupolev-KAI, 10 K. Marx St., Kazan 420111, Russia
| | - Ksenia Novikova
- Department of General Chemistry and Ecology, Kazan National Research Technical University Named after A.N. Tupolev-KAI, 10 K. Marx St., Kazan 420111, Russia
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Manin A, Golubenko D, Novikova S, Yaroslavtsev A. Composite Anion Exchange Membranes Based on Quaternary Ammonium-Functionalized Polystyrene and Cerium(IV) Phosphate with Improved Monovalent-Ion Selectivity and Antifouling Properties. Membranes (Basel) 2023; 13:624. [PMID: 37504990 PMCID: PMC10386577 DOI: 10.3390/membranes13070624] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/15/2023] [Accepted: 06/24/2023] [Indexed: 07/29/2023]
Abstract
The possibility of targeted change of the properties of ion exchange membranes by incorporation of various nanoparticles into the membranes is attracting the attention of many research groups. Here we studied for the first time the influence of cerium phosphate nanoparticles on the physicochemical and transport properties of commercial anion exchange membranes based on quaternary ammonium-functionalized polystyrenes, such as heterogeneous Ralex® AM and pseudo-homogeneous Neosepta® AMX. The incorporation of cerium phosphate on one side of the membrane was performed by precipitation from absorbed cerium ammonium nitrate (CAN) anionic complex with ammonium dihydrogen phosphate or phosphoric acid. The structures of the obtained hybrid membranes and separately synthesized cerium phosphate were investigated using FTIR, P31 MAS NMR, EDX mapping, and scanning electron microscopy. The modification increased the membrane selectivity to monovalent ions in the ED desalination of an equimolar mixture of NaCl and Na2SO4. The highest selectivities of Ralex® AM and Neosepta® AMX-based hybrid membranes were 4.9 and 7.7, respectively. In addition, the modification of Neosepta® membranes also increased the resistance to a typical anionic surfactant, sodium dodecylbenzenesulfonate.
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Affiliation(s)
- Andrey Manin
- Kurnakov Institute of General and Inorganic Chemistry RAS, Leninskii Prospekt 31, Moscow 119071, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Vavilova str., 7, Moscow 119048, Russia
| | - Daniel Golubenko
- Kurnakov Institute of General and Inorganic Chemistry RAS, Leninskii Prospekt 31, Moscow 119071, Russia
| | - Svetlana Novikova
- Kurnakov Institute of General and Inorganic Chemistry RAS, Leninskii Prospekt 31, Moscow 119071, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Vavilova str., 7, Moscow 119048, Russia
| | - Andrey Yaroslavtsev
- Kurnakov Institute of General and Inorganic Chemistry RAS, Leninskii Prospekt 31, Moscow 119071, Russia
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Soloveva N, Novikova S, Farafonova T, Tikhonova O, Zgoda V. Proteomic Signature of Extracellular Vesicles Associated with Colorectal Cancer. Molecules 2023; 28:molecules28104227. [PMID: 37241967 DOI: 10.3390/molecules28104227] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
The proteins of extracellular vesicles (EVs) provide proteomic signatures that reflect molecular features of EV-producing cells, including cancer cells. Detection of cancer cell EV proteins is of great interest due to the development of novel predictive diagnostic approaches. Using targeted mass spectrometry with stable-isotope-labeled peptide standards (SIS), we measured in this study the levels of 34 EV-associated proteins in vesicles and whole lysate derived from the colorectal cancer (CRC) cell lines Caco-2, HT29 and HCT116. We also evaluated the abundance of 13 EV-associated proteins (FN1, TLN1, ITGB3, HSPA8, TUBA4A, CD9, CD63, HSPG2, ITGB1, GNAI2, TSG101, PACSIN2, and CDC42) in EVs isolated from blood plasma samples from 11 CRC patients and 20 healthy volunteers. Downregulation of TLN1, ITGB3, and TUBA4A with simultaneous upregulation of HSPG2 protein were observed in cancer samples compared to healthy controls. The proteomic cargo of the EVs associated with CRC represents a promising source of potential prognostic markers.
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Affiliation(s)
- Natalia Soloveva
- Orekhovich Institute of Biomedical Chemistry, Pogodinskaya 10, 119121 Moscow, Russia
| | - Svetlana Novikova
- Orekhovich Institute of Biomedical Chemistry, Pogodinskaya 10, 119121 Moscow, Russia
| | - Tatiana Farafonova
- Orekhovich Institute of Biomedical Chemistry, Pogodinskaya 10, 119121 Moscow, Russia
| | - Olga Tikhonova
- Orekhovich Institute of Biomedical Chemistry, Pogodinskaya 10, 119121 Moscow, Russia
| | - Victor Zgoda
- Orekhovich Institute of Biomedical Chemistry, Pogodinskaya 10, 119121 Moscow, Russia
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8
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Pya Y, Mussayev A, Novikova S, Bekbossynova M, Alimbayev S, Khissamutdinov N, Kapyshev T, Kuanyshbek A, Lesbekov T. Case report: A novel surgical technique for rapid valve-in-ring implantation into the native aortic annulus during left ventricular assist device implantation. Front Cardiovasc Med 2023; 10:1091420. [PMID: 37089890 PMCID: PMC10117784 DOI: 10.3389/fcvm.2023.1091420] [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: 11/07/2022] [Accepted: 03/17/2023] [Indexed: 04/08/2023] Open
Abstract
The implantation of a left ventricular assist device (LVAD) has become an essential requirement for managing patients with end-stage heart failure. However, aortic valve insufficiency is a contraindication for LVAD implantation in patients with end-stage heart failure, partly because of the decreasing efficiency of mechanical circulatory support and the eventual development of right ventricular failure. Herein, we present the first case of performing transcatheter aortic valve replacement in valve-in-ring along with LVAD implantation for the treatment of a 60-year-old male suffering from refractory heart failure due to dilated cardiomyopathy and pure aortic insufficiency in need of a new aortic bioprosthesis. A balloon-expandable bioprosthetic transcatheter heart valve was implanted into a previously sewn annulus ring into the aortic root via transaortic access. Subsequently, a centrifugal-flow LVAD was implanted. Postoperatively, the patient was in New York Heart Association Functional Class (NYHA) II with 6-min walk test of 310 m. The patient has completed 6 months of follow-up with no events. This novel and feasible surgical technique reduced the cardiopulmonary bypass time and duration of surgery. Furthermore, it avoids the risk of redo sternotomy and decreases the chances of paravalvular leakage and worsening of aortic regurgitation.
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Affiliation(s)
- Yuriy Pya
- Department of Cardiac Surgery, National Research Cardiac Surgery Center, Astana, Kazakhstan
| | - Abdurashid Mussayev
- Department of Interventional Cardiology, National Research Cardiac Surgery Center, Astana, Kazakhstan
| | - Svetlana Novikova
- Department of Cardiac Surgery, National Research Cardiac Surgery Center, Astana, Kazakhstan
| | | | - Serik Alimbayev
- Department of Interventional Cardiology, National Research Cardiac Surgery Center, Astana, Kazakhstan
| | - Nail Khissamutdinov
- Department of Cardiology, National Research Cardiac Surgery Center, Astana, Kazakhstan
| | - Timur Kapyshev
- Department of Anesthesiology, Resuscitation and Intensive Care(Adult), Astana, Kazakhstan
| | - Aidyn Kuanyshbek
- Department of Anesthesiology, Resuscitation and Intensive Care(Adult), Astana, Kazakhstan
| | - Timur Lesbekov
- Department of Cardiac Surgery, National Research Cardiac Surgery Center, Astana, Kazakhstan
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Novikova S, Soloveva N, Farafonova T, Tikhonova O, Shimansky V, Kugushev I, Zgoda V. Proteomic Shotgun and Targeted Mass Spectrometric Datasets of Cerebrospinal Fluid (Liquor) Derived from Patients with Vestibular Schwannoma. Data 2023. [DOI: 10.3390/data8040071] [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] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
Vestibular schwannomas are relatively rare intracranial tumors compared to other brain tumors. Data on the molecular features, especially on schwannoma proteome, are scarce. The 41 cerebrospinal fluid (liquor) samples were obtained during the surgical removal of vestibular schwannoma. Obtained peptide samples were analyzed by shotgun LC-MS/MS high-resolution mass spectrometry. The same peptide samples were spiked with 148 stable isotopically labeled peptide standards (SIS) followed by alkaline fractionation and scheduled multiple reaction monitoring (MRM) for quantitative analysis. The natural counterparts of SIS peptides were mapped onto 111 proteins that were Food and Drug Administration (FDA)-approved for diagnostic use. As a result, 525 proteins were identified by shotgun LC-MS/MS with high confidence (at least two peptides per protein, FDR < 1%) in liquor samples. Absolute quantitative concentrations were obtained for 54 FDA-approved proteins detected in at least five experimental samples. Since there is lack of data on the molecular landscape of vestibular schwannoma, the obtained datasets are unique and one of the first in its field.
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Affiliation(s)
| | | | | | - Olga Tikhonova
- Institute of Biomedical Chemistry, 119121 Moscow, Russia
| | - Vadim Shimansky
- N.N. Burdenko National Scientific and Practical Center for Neurosurgery, 125047 Moscow, Russia
| | - Ivan Kugushev
- N.N. Burdenko National Scientific and Practical Center for Neurosurgery, 125047 Moscow, Russia
| | - Victor Zgoda
- Institute of Biomedical Chemistry, 119121 Moscow, Russia
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Bekishev B, Jabayeva N, Novikova S, Kuanyshbek A, LI T, Kaliyev R, Nurmykhametova Z. MO358: Analysis of Acute Kidney Injury Incidence in Patients After Left Ventricle Assist Device Implantation. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac135.013] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Chronic heart failure (CHF) in the terminal stage is a crucial issue of medicine. Heart transplantation is still the best treatment option. Lack of donors, long waiting time make heart transplantation almost impossible. Implantation of left ventricular assist device—LVAD) in patients with CHF is a bridge to transplantation. Nevertheless, the LVAD implantation procedure is time-consuming, requires significant material costs, and leads to numerous complications in the postoperative period. Acute kidney injury (AKI) is one of the most common and dangerous complications. Issues of AKI in patients with LVAD should be carefully taught.
The aim of the study is to examine the incidence of postoperative renal failure after the implantation of LVAD and its relationship to outcomes. In addition, we want to share with our experience of AKI management in patients with LVAD.
METHOD
A retrospective analysis of 265 medical records of patients after surgical implantation of LVAD who were hospitalized to the National Research Cardiac Surgery Center, Nur-Sultan city, Kazakhstan. Period of hospitalization from 01.2015 to 10.2021 year. The Kidney Disease Improving Global Outcome (KDIGO) criteria were used to define AKI.
RESULTS
Total number of patients 265 after LVAD implantation. Male—85.66% and female—14.34%. Mean ICU stay of patient without severe AKI—7.17±5.47 days. Mean ICU stay of patient with severe AKI—11.82±7.47 days.
Patients with severe AKI and blood purification—59 patients (24.9%), male—61–92.4%, femal—-5–7.6%.
Total number of LVAD patients—265.
ICU Mortality rate of patients after LVAD implantation—11 patients (4.15%).
Severe AKI—59 patients (22.3%).
Recovery of AKI—47 patients (79.66%).
Transformation to terminal stage of chronic renal disease (CRD) with chronic dialysis—1 patient (1.69%).
ICU Mortality rate of patients with severe AKI—11 (18.64%).
CONCLUSION
AKI is a common complication in the immediate postoperative period after LVAD implantation. AKI negatively affects the outcome of the disease. The mortality rate of LVAD patients with renal insufficiency exceeds by 14% the mortality of patients with renal insufficiency.
Blood purification is the effective method of severe AKI therapy.
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Affiliation(s)
- Bolat Bekishev
- laboratory of Extracorporeal Hemocorrection, National Research Cardiac Surgery Center, Nur-Sultan, Kazakhstan
| | - Nilufar Jabayeva
- laboratory of Extracorporeal Hemocorrection, National Research Cardiac Surgery Center, Nur-Sultan, Kazakhstan
| | - Svetlana Novikova
- Cardiac Surgery #2, National Research Cardiac Surgery Center, Nur-Sultan, Kazakhstan
| | - Aidyn Kuanyshbek
- National Research Cardiac Surgery Center, ICU, Nur-Sultan, Kazakhstan
| | - Tatyana LI
- National Research Cardiac Surgery Center, ICU, Nur-Sultan, Kazakhstan
| | - Rymbay Kaliyev
- Cardiac Surgery #2, National Research Cardiac Surgery Center, Nur-Sultan, Kazakhstan
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11
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Tunakova Y, Shagidullin A, Valiev V, Novikova S, Faizullin R. Method for Determining Regional Reference Values of Metal Content in Biological Substrates and Their Intake into the Body via Drinking Water. Int J Environ Res Public Health 2021; 18:ijerph18189903. [PMID: 34574826 PMCID: PMC8464986 DOI: 10.3390/ijerph18189903] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/02/2022]
Abstract
Natural and manmade flows of matter form complex metal associations in the body of residents living in certain territories, which leads to functional disorders in their bodies and the depletion of adaptive reserves. It is possible to assess the distribution of metals in the body only taking into account its biogeochemical localization. The question arises about the methodological approach to the determination of regional reference values of the concentrations of metals in biosubstrates of residents of different territories, to which this study was devoted. A designed and trained neural network was used, reflecting the relationship between the concentrations of metals in consumed drinking water and biosubstrates of the body, taking into account the physiological characteristics of the tested group of children and adolescents, based on the regional reference values obtained. Neural network regression methods allowed the calculation of nonlinear dependences of indicators of the state of the internal environment of an organism with external factors, and localized reference values determined in such calculations the indicators of the base state, being guided by the intensity of external factors, which should be assessed. The results of this study are intended for patient-oriented diagnosis and the treatment of eco-conditioned microelementosis in individual locations.
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Affiliation(s)
- Yulia Tunakova
- Department of General Chemistry and Ecology, Kazan National Research Technical University named after A. N. Tupolev (KNRTU–KAI), 420126 Kazan, Russia;
- Correspondence:
| | - Artur Shagidullin
- Research Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 420087 Kazan, Russia; (A.S.); (V.V.)
| | - Vsevolod Valiev
- Research Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 420087 Kazan, Russia; (A.S.); (V.V.)
| | - Svetlana Novikova
- Department of General Chemistry and Ecology, Kazan National Research Technical University named after A. N. Tupolev (KNRTU–KAI), 420126 Kazan, Russia;
| | - Rashat Faizullin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420012 Kazan, Russia;
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12
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Gisina A, Novikova S, Kim Y, Sidorov D, Bykasov S, Volchenko N, Kaprin A, Zgoda V, Yarygin K, Lupatov A. CEACAM5 overexpression is a reliable characteristic of CD133-positive colorectal cancer stem cells. Cancer Biomark 2021; 32:85-98. [PMID: 34092615 DOI: 10.3233/cbm-203187] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 12/11/2022]
Abstract
BACKGROUND CD133 (prominin-1) is the most commonly used molecular marker of the cancer stem cells (CSCs) that maintain tumor progression and recurrence in colorectal cancer. However, the proteome of CSCs directly isolated from colorectal tumors based on CD133 expression has never been investigated. OBJECTIVE To reveal biomarkers of CD133-positive colorectal CSCs. METHODS Thirty colorectal tumor samples were collected from patients undergoing bowel resection. CD133-positive and CD133-negative cells were isolated by FACS. Comparative proteomic profiling was performed by LC-MS/MS analysis combined with label-free quantification. Verification of differentially expressed proteins was performed by flow cytometry or ELISA. CD133-knockout Caco-2 and HT-29 cell lines were generated using CRISPR-Cas9 gene editing. RESULTS LC-MS/MS analysis identified 29 proteins with at least 2.5-fold higher expression in CD133-positive cells versus CD133-negative cells. Flow cytometry confirmed CEACAM5 overexpression in CD133-positive cells in all clinical samples analyzed. S100A8, S100A9, and DEFA1 were differentially expressed in only a proportion of the samples. CD133 knockout in the colon cancer cell lines Caco-2 and HT-29 did not affect the median level of CEACAM5 expression, but led to higher variance of the percentage of CEACAM5-positive cells. CONCLUSIONS High CEACAM5 expression in colorectal cancer cells is firmly associated with the CD133-positive colorectal CSC phenotype, but it is unlikely that CD133 directly regulates CEACAM5 expression.
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Affiliation(s)
- Alisa Gisina
- Laboratory of Cell Biology, Institute of Biomedical Chemistry, Moscow, Russia
| | - Svetlana Novikova
- Laboratory of Systems Biology, Institute of Biomedical Chemistry, Moscow, Russia
| | - Yan Kim
- Laboratory of Cell Biology, Institute of Biomedical Chemistry, Moscow, Russia
| | - Dmitry Sidorov
- Department of Abdominal Surgery, P. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Stanislav Bykasov
- Department of Abdominal Surgery, P. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Nadezhda Volchenko
- Department of Oncomorphology, P. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Andrey Kaprin
- P. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Victor Zgoda
- Laboratory of Systems Biology, Institute of Biomedical Chemistry, Moscow, Russia
| | - Konstantin Yarygin
- Laboratory of Cell Biology, Institute of Biomedical Chemistry, Moscow, Russia
| | - Alexey Lupatov
- Laboratory of Cell Biology, Institute of Biomedical Chemistry, Moscow, Russia
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13
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Novikova S, Tikhonova O, Kurbatov L, Farafonova T, Vakhrushev I, Lupatov A, Yarygin K, Zgoda V. Omics Technologies to Decipher Regulatory Networks in Granulocytic Cell Differentiation. Biomolecules 2021; 11:biom11060907. [PMID: 34207065 PMCID: PMC8233756 DOI: 10.3390/biom11060907] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 01/01/2023] Open
Abstract
Induced granulocytic differentiation of human leukemic cells under all-trans-retinoid acid (ATRA) treatment underlies differentiation therapy of acute myeloid leukemia. Knowing the regulation of this process it is possible to identify potential targets for antileukemic drugs and develop novel approaches to differentiation therapy. In this study, we have performed transcriptomic and proteomic profiling to reveal up- and down-regulated transcripts and proteins during time-course experiments. Using data on differentially expressed transcripts and proteins we have applied upstream regulator search and obtained transcriptome- and proteome-based regulatory networks of induced granulocytic differentiation that cover both up-regulated (HIC1, NFKBIA, and CASP9) and down-regulated (PARP1, VDR, and RXRA) elements. To verify the designed network we measured HIC1 and PARP1 protein abundance during granulocytic differentiation by selected reaction monitoring (SRM) using stable isotopically labeled peptide standards. We also revealed that transcription factor CEBPB and LYN kinase were involved in differentiation onset, and evaluated their protein levels by SRM technique. Obtained results indicate that the omics data reflect involvement of the DNA repair system and the MAPK kinase cascade as well as show the balance between the processes of the cell survival and apoptosis in a p53-independent manner. The differentially expressed transcripts and proteins, predicted transcriptional factors, and key molecules such as HIC1, CEBPB, LYN, and PARP1 may be considered as potential targets for differentiation therapy of acute myeloid leukemia.
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14
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Kaliyev R, Lesbekov T, Bekbossynov S, Nurmykhametova Z, Bekbossynova M, Novikova S, Medressova A, Smagulov N, Faizov L, Samalavicius R, Pya Y. Heart transplantation of patients with ventricular assist devices: impact of normothermic ex-vivo preservation using organ care system compared with cold storage. J Cardiothorac Surg 2020; 15:323. [PMID: 33109229 PMCID: PMC7590799 DOI: 10.1186/s13019-020-01367-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 08/19/2020] [Accepted: 10/18/2020] [Indexed: 01/09/2023] Open
Abstract
Background Organ Care System (OCS) minimizes the cold ischemic time and allows for optimization of logistics and meticulous recipient preparation. Impact of normothermic ex-vivo preservation using OCS compared with cold storage (CS) for prolonged heart preservation especially beneficial for high-risk recipients bridged to transplantation with Mechanical Circulatory Support (MCS). Methods Between 2012 and 2018, we performed a retrospective single-center review of prospectively collected data. All patients who underwent heart transplantation with MCS using the OCS Heart (n = 25) versus standard cold storage (n = 10) were included in this study. Results During this period, 353 patients were implanted with left ventricular assisted device (LVAD) and 35 (10%) were bridged to heart transplantation. There was no significant difference in donor and recipient characteristics and risk factors. The Index for Mortality Prediction after Cardiac Transplantation (IMPACT) score was a trend towards higher estimated risk of death at 1y in the OCS group (14.2 vs. 10.8% p = 0.083). Mean total ischemic time during preservation was statistically significantly longer in CS vs OCS group (210 (23) Vs 74.6 (13) min p = 0.001). Median ex vivo normothermic heart perfusion time in OCS was 348.4(132; 955) min. There was significant difference in total out of body time between OCS group 423(67) Vs CS group 210(23) min p = 0.002). All patients were alive on the 30th days post implant in CS groups and 96% in OCS group (p = 0.5). Conclusion Normothermic ex-vivo preservation of the allograft during transportation with the organ care system might be beneficial for long-time out of body organ preservation in comparison of cold storage especially for recipients on mechanical circulatory support.
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Affiliation(s)
- Rymbay Kaliyev
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | - Timur Lesbekov
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | - Serik Bekbossynov
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | | | | | - Svetlana Novikova
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | - Assel Medressova
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | - Nurlan Smagulov
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | - Linar Faizov
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
| | | | - Yuriy Pya
- National Research Center for Cardiac Surgery, Nur-Sultan, Kazakhstan
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15
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Novikova S, Shushkova N, Farafonova T, Tikhonova O, Kamyshinsky R, Zgoda V. Proteomic Approach for Searching for Universal, Tissue-Specific, and Line-Specific Markers of Extracellular Vesicles in Lung and Colorectal Adenocarcinoma Cell Lines. Int J Mol Sci 2020; 21:E6601. [PMID: 32916986 PMCID: PMC7555231 DOI: 10.3390/ijms21186601] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 12/17/2022] Open
Abstract
Tumor-derived extracellular vesicles (EVs), including exosomes, contain proteins that mirror the molecular landscape of producer cells. Being potentially detectible in biological fluids, EVs are of great interest for the screening of cancer biomarkers. To reveal universal, tissue-specific, and line-specific markers, we performed label-free mass spectrometric profiling of EVs originating from the human colon cancer cell lines Caco-2, HT29, and HCT-116, as well as from the lung cancer cell lines NCI-H23 and A549. A total of 651 proteins was identified in the EV samples using at least two peptides. These proteins were highly enriched in exosome markers. We found 11 universal, eight tissue-specific, and 29 line-specific markers, the levels of which were increased in EVs compared to the whole lysates. The EV proteins were involved in the EGFR, Rap1, integrin, and microRNA signaling associated with metastasis and cancer progression. An EV protein-based assay could be developed as a liquid biopsy tool.
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Affiliation(s)
- Svetlana Novikova
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, 119121 Moscow, Russia; (T.F.); (O.T.); (V.Z.)
| | - Natalia Shushkova
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, 119121 Moscow, Russia; (T.F.); (O.T.); (V.Z.)
| | - Tatiana Farafonova
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, 119121 Moscow, Russia; (T.F.); (O.T.); (V.Z.)
| | - Olga Tikhonova
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, 119121 Moscow, Russia; (T.F.); (O.T.); (V.Z.)
| | - Roman Kamyshinsky
- National Research Center “Kurchatov Institute”, Akademika Kurchatova pl. 1, 123182 Moscow, Russia;
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre ‘Crystallography and Photonics’ of Russian Academy of Sciences, Leninskiy Prospect, 59, 119333 Moscow, Russia
- Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, 141700 Moscow, Russia
| | - Victor Zgoda
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, 119121 Moscow, Russia; (T.F.); (O.T.); (V.Z.)
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16
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Radko S, Ptitsyn K, Novikova S, Kiseleva Y, Moysa A, Kurbatov L, Mannanova M, Zgoda V, Ponomarenko E, Lisitsa A, Archakov A. Evaluation of Aptamers as Affinity Reagents for an Enhancement of SRM-Based Detection of Low-Abundance Proteins in Blood Plasma. Biomedicines 2020; 8:E133. [PMID: 32456365 PMCID: PMC7277749 DOI: 10.3390/biomedicines8050133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
Selected reaction monitoring (SRM) is a mass spectrometric technique characterized by the exceptionally high selectivity and sensitivity of protein detection. However, even with this technique, the quantitative detection of low- and ultralow-abundance proteins in blood plasma, which is of great importance for the search and verification of novel protein disease markers, is a challenging task due to the immense dynamic range of protein abundance levels. One approach used to overcome this problem is the immunoaffinity enrichment of target proteins for SRM analysis, employing monoclonal antibodies. Aptamers appear as a promising alternative to antibodies for affinity enrichment. Here, using recombinant protein SMAD4 as a model target added at known concentrations to human blood plasma and SRM as a detection method, we investigated a relationship between the initial amount of the target protein and its amount in the fraction enriched with SMAD4 by an anti-SMAD4 DNA-aptamer immobilized on magnetic beads. It was found that the aptamer-based enrichment provided a 30-fold increase in the sensitivity of SRM detection of SMAD4. These results indicate that the aptamer-based affinity enrichment of target proteins can be successfully employed to improve quantitative detection of low-abundance proteins by SRM in undepleted human blood plasma.
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Affiliation(s)
- Sergey Radko
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Konstantin Ptitsyn
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Svetlana Novikova
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Yana Kiseleva
- Russian Scientific Center of Roentgenoradiology, Moscow 117485, Russia;
| | - Alexander Moysa
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Leonid Kurbatov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Maria Mannanova
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Victor Zgoda
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Elena Ponomarenko
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Andrey Lisitsa
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
| | - Alexander Archakov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (K.P.); (S.N.); (A.M.); (L.K.); (M.M.); (V.Z.); (E.P.); (A.L.); (A.A.)
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17
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Voropaeva D, Novikova S, Xu T, Yaroslavtsev A. Polymer Electrolytes for LIBs Based on Perfluorinated Sulfocationic Nepem-117 Membrane and Aprotic Solvents. J Phys Chem B 2019; 123:10217-10223. [PMID: 31689107 DOI: 10.1021/acs.jpcb.9b08555] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polymer electrolytes have been obtained by using Nepem-117 membranes in a Li+ form intercalated by polar aprotic solvents, such as dimethylformamide, dimethyl sulfoxide (DMSO), and dimethylacetamide (DMA), and solvent mixtures, such as ethylene carbonate-propylene carbonate (EC-PC), EC-DMA, EC-PC-DMA, and EC-PC-DMA-tetrahydrofuran. The obtained electrolytes have been characterized by IR impedance and 7Li pulsed field gradient NMR spectroscopy. Ion mobility was observed to increase with higher degrees of solvation of the membranes. A method is demonstrated to determine the solvent uptake corresponding to the percolation threshold. With comparable solvent uptake, materials containing a solvent with a higher permittivity and a lower viscosity have higher values of ionic conductivity. The membranes containing the three-component mixture of EC-PC-DMA show the highest ionic conductivity values (8.1 and 2.1 mS/cm at 25 and -20 °C, respectively). Such values exceed the conductivity of electrolytes on the basis of the Nafion membranes solvated with aprotic solvents.
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Affiliation(s)
- Daria Voropaeva
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences , 31 Leninsky prospect , Moscow 119991 , Russia.,Institute of Problems of Chemical Physics of Russian Academy of Sciences , Academician Semenov avenue 1 , Chernogolovka 142432 , Russia
| | - Svetlana Novikova
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences , 31 Leninsky prospect , Moscow 119991 , Russia
| | - Tongwen Xu
- School of Chemistry and Material Science , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Andrey Yaroslavtsev
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences , 31 Leninsky prospect , Moscow 119991 , Russia.,Institute of Problems of Chemical Physics of Russian Academy of Sciences , Academician Semenov avenue 1 , Chernogolovka 142432 , Russia.,National Research University Higher School of Economics , Moscow 101000 , Russia
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18
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Kaliyev R, Lesbekov T, Bekbossynov S, Bekbossynova M, Nurmykhametova Z, Novikova S, Smagulov N, Medressova A, Faizov L, Ashyrov Z, la Fleur P, Samalavicius R, Pya Y. Comparison of Custodiol vs warm blood cardioplegia and conditioning of donor hearts during transportation with the organ care system. J Card Surg 2019; 34:969-975. [PMID: 31332833 PMCID: PMC6852406 DOI: 10.1111/jocs.14162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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] [Indexed: 12/20/2022]
Abstract
Objectives Cold crystalloid cardioplegia for donor heart harvesting and cold ischemic storage conditions during the transportation is the standard of care during heart transplantation procedure. Organ care system (OCS) was introduced for more prolonged and reliable ex vivo organ management. This study evaluated the two different techniques used for myocardial preservation during the procurement and transportation of the heart using the OCS. Methods We performed prospective analysis of 43 patients with heart failure undergoing heart transplantation and using the OCS for donor organ transport. Donor hearts were arrested using blood cardioplegia and conditioning (n = 30) or standard Custodiol (SC) solution (
n = 13). Perfusion and cardiac function parameters were continuously monitored while the donor hearts were perfused in the OCS. Impact of preservation techniques on biochemical parameters and clinical outcomes were evaluated. Results All donor hearts had stable perfusion and lactate characteristics in the OCS, with similar measures between the two groups at the beginning of the ex vivo perfusion. Ex vivo heart perfusion mean ending concentration of Interleukin (IL)‐6 and IL‐8 was significantly lower in the blood cardioplegia group compared to the standard care group. Clinical outcomes were comparable between the two groups of patients. Conclusions The use of blood cardioplegia and conditioning could be a safe method for myocardial protection in distant procurement and preservation of donor hearts in the OCS.
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Affiliation(s)
- Rymbay Kaliyev
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
| | - Timur Lesbekov
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
| | | | | | | | | | - Nurlan Smagulov
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
| | - Assel Medressova
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
| | - Linar Faizov
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
| | - Zhanibek Ashyrov
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
| | - Philip la Fleur
- Nazarbayev University School of Medicine, Astana, Kazakhstan
| | | | - Yuriy Pya
- National Research Center for Cardiac Surgery, Astana, Kazakhstan
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19
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Ilgisonis EV, Kopylov AT, Ponomarenko EA, Poverennaya EV, Tikhonova OV, Farafonova TE, Novikova S, Lisitsa AV, Zgoda VG, Archakov AI. Increased Sensitivity of Mass Spectrometry by Alkaline Two-Dimensional Liquid Chromatography: Deep Cover of the Human Proteome in Gene-Centric Mode. J Proteome Res 2018; 17:4258-4266. [PMID: 30354151 DOI: 10.1021/acs.jproteome.8b00754] [Citation(s) in RCA: 9] [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: 12/14/2022]
Abstract
Currently, great interest is paid to the identification of "missing" proteins that have not been detected in any biological material at the protein level (PE1). In this paper, using the Universal Proteomic Standard sets 1 and 2 (UPS1 and UPS2, respectively) as an example, we characterized mass spectrometric approaches from the point of view of sensitivity (Sn), specificity (Sp), and accuracy (Ac). The aim of the paper was to show the utility of a mass spectra approach for protein detection. This sets consists of 48 high-purity human proteins without single aminoacid polymorphism (SAP) or post translational modification (PTM). The UPS1 set consists of the same 48 proteins at 5 pmols each, and in UPS2, proteins were grouped into 5 groups in accordance with their molar concentration, ranging from 10-11 to 10-6 M. Single peptides from the 92% and 96% of all sets of proteins could be detected in a pure solution of UPS2 and UPS1, respectively, by selected reaction monitoring with stable isotope-labeled standards (SRM-SIS). We also found that, in the presence of a biological matrix such as Escherichia coli extract or human blood plasma (HBP), SRM-SIS makes it possible to detect from 63% to 79% of proteins in the UPS2 set (sensitivity) with the highest specificity (∼100%) and an accuracy of 80% by increasing the sensitivity of shotgun and selected reaction monitoring combined with a stable-isotope-labeled peptide standard (SRM-SIS technology) by fractionating samples using reverse-phase liquid chromatography under alkaline conditions (2D-LC_alk). It is shown that this technique of sample fractionation allows the SRM-SIS to detect 98% of the single peptides from the proteins present in the pure solution of UPS2 (47 out of 48 proteins). When the extracts of E. coli or Pichia pastoris are added as biological matrixes to the UPS2, 46, and 45 out of 48 proteins (∼95%) can be detected, respectively, using the SRM-SIS combined with 2D-LC_alk. The combination of the 2D-LC_alk SRM-SIS and shotgun technologies allows us to increase the sensitivity up to 100% in the case of the proteins of the UPS2 set. The usage of that technology can be a solution for identifying the so-called "missing" proteins and, eventually, creating the deep proteome of a particular chromosome of tissue or organs. Experimental data have been deposited in the PeptideAtlas SRM Experiment Library with the dataset identifier PASS01192 and the PRIDE repository with the dataset identifier PXD007643.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Victor G Zgoda
- Institute of Biomedical Chemistry, RAS , Moscow , Russia
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20
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Anselm V, Novikova S, Zgoda V. Re-adaption on Earth after Spaceflights Affects the Mouse Liver Proteome. Int J Mol Sci 2017; 18:E1763. [PMID: 28805685 PMCID: PMC5578152 DOI: 10.3390/ijms18081763] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/02/2017] [Accepted: 08/09/2017] [Indexed: 01/26/2023] Open
Abstract
Harsh environmental conditions including microgravity and radiation during prolonged spaceflights are known to alter hepatic metabolism. Our studies have focused on the analysis of possible changes in metabolic pathways in the livers of mice from spaceflight project "Bion-M 1". Mice experienced 30 days of spaceflight with and without an additional re-adaption period of seven days compared to control mice on Earth. To investigate mice livers we have performed proteomic profiling utilizing shotgun mass spectrometry followed by label-free quantification. Proteomic data analysis provided 12,206 unique peptides and 1,086 identified proteins. Label-free quantification using MaxQuant software followed by multiple sample statistical testing (ANOVA) revealed 218 up-regulated and 224 down-regulated proteins in the post-flight compared to the other groups. Proteins related to amino acid metabolism showed higher levels after re-adaption, which may indicate higher rates of gluconeogenesis. Members of the peroxisome proliferator-activated receptor pathway reconstitute their level after seven days based on a decreased level in comparison with the flight group, which indicates diminished liver lipotoxicity. Moreover, bile acid secretion may regenerate on Earth due to reconstitution of related transmembrane proteins and CYP superfamily proteins elevated levels seven days after the spaceflight. Thus, our study demonstrates reconstitution of pharmacological response and decreased liver lipotoxicity within seven days, whereas glucose uptake should be monitored due to alterations in gluconeogenesis.
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Affiliation(s)
- Viktoria Anselm
- Interfaculty Institute of Biochemistry (IFIB), Hoppe-Seyler-Straße 4, Tuebingen 72076.
| | - Svetlana Novikova
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, Moscow 119121.
| | - Victor Zgoda
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, Pogodinskaya 10, Moscow 119121.
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Novikova S, Hall D, Farber GK. The S-Index and the National Institute of Mental Health Data Archive. JAMA Psychiatry 2017; 74:540-541. [PMID: 28329098 DOI: 10.1001/jamapsychiatry.2017.0145] [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: 11/14/2022]
Affiliation(s)
- Svetlana Novikova
- National Institute of Mental Health Data Archive, Omnitec Solutions Inc, Rockville, Maryland
| | - Dan Hall
- National Institute of Mental Health Data Archive, Omnitec Solutions Inc, Rockville, Maryland
| | - Gregory K Farber
- Office of Technology Development and Coordination, National Institute of Mental Health, Rockville, Maryland
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Kapaev R, Chekannikov A, Novikova S, Yaroslavtsev S, Kulova T, Rusakov V, Skundin A, Yaroslavtsev A. Mechanochemical treatment of maricite-type NaFePO4 for achieving high electrochemical performance. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3592-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chekannikov A, Novikova S, Kulova T, Skundin A, Yaroslavtsev A. Electrochemical study of doped LiFePO4 as a cathode material for lithium-ion battery. J Electrochem Sci Eng 2016. [DOI: 10.5599/jese.234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
<p class="PaperAbstract"><span lang="EN-US">LiFe<sub>1-x</sub>VxPO<sub>4</sub>/C (x= 0.01, 0.03, 0.05, 0.1) composites had been obtained by sol-gel method and characterized with the use of the XRD-analysis, SEM and charge/discharge tests. The doping was shown to result in decrease of electrode polarization, and correspondingly in capacity increase at high C-rates.</span></p>
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Pya Y, Bekbossynov S, Bekbossynova M, Andossova S, Dzhetybayeva S, Medressova A, Murzagaliyev M, Novikova S, Salov R, Abildayeva R, Damme L. HeartMate 3 Left Ventricular Assist Device Pre- and Post-Approval Experience Through 1 Year at a Single Center. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.104] [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: 10/22/2022] Open
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Moskaleva N, Moysa A, Novikova S, Tikhonova O, Zgoda V, Archakov A. Spaceflight Effects on Cytochrome P450 Content in Mouse Liver. PLoS One 2015; 10:e0142374. [PMID: 26561010 PMCID: PMC4641588 DOI: 10.1371/journal.pone.0142374] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 10/21/2015] [Indexed: 12/30/2022] Open
Abstract
Hard conditions of long-term manned spaceflight can affect functions of many biological systems including a system of drug metabolism. The cytochrome P450 (CYP) superfamily plays a key role in the drug metabolism. In this study we examined the hepatic content of some P450 isoforms in mice exposed to 30 days of space flight and microgravity. The CYP content was established by the mass-spectrometric method of selected reaction monitoring (SRM). Significant changes in the CYP2C29, CYP2E1 and CYP1A2 contents were detected in mice of the flight group compared to the ground control group. Within seven days after landing and corresponding recovery period changes in the content of CYP2C29 and CYP1A2 returned to the control level, while the CYP2E1 level remained elevated. The induction of enzyme observed in the mice in the conditions of the spaceflight could lead to an accelerated biotransformation and change in efficiency of pharmacological agents, metabolizing by corresponding CYP isoforms. Such possibility of an individual pharmacological response to medication during long-term spaceflights and early period of postflight adaptation should be taken into account in space medicine.
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Affiliation(s)
| | | | | | | | - Victor Zgoda
- Institute of Biomedical Chemistry, Moscow, Russia
- * E-mail:
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Pya Y, Bekbossynova M, Jetybayeva S, Bekbossynov S, Andossova S, Salov R, Medressova A, Novikova S, Murzagaliyev M. Initial 3-year outcomes with left ventricular assist devices in a country with a nascent heart transplantation program. ESC Heart Fail 2015; 3:26-34. [PMID: 27774264 PMCID: PMC5061086 DOI: 10.1002/ehf2.12066] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 06/23/2015] [Revised: 08/09/2015] [Accepted: 08/26/2015] [Indexed: 12/21/2022] Open
Abstract
AIMS The need for the left ventricular assist devices (LVAD) in patients with end-stage heart failure is well established, but prior to 2011, this was not available to patients in Kazakhstan. We describe the development of the sole LVAD programme in the context of a nascent heart transplantation programme and clinical outcomes for the first three years. METHODS AND RESULTS From November 2011 to November 2014, 146 patients underwent implantation of 152 VADs (approximately 50 devices implanted per year). We retrospectively analyzed data from 135 LVAD patients who received HeartMate II (n = 95) or HeartWare (n = 40) devices. In 75 patients LVAD was used as a bridge-to-transplantation and in 60 patients as destination therapy, but only 3 of 135 LVAD patients received heart transplant. Forty-three patients of the LVAD cohort had died by the end of the follow-up period. The mean time on LVAD was 466 ± 330 days (range 5-1200 days). Kaplan-Meier survival estimates for patients who continued on LVAD support were 93% after 1 month, 86% after 6 months and 77% after 12 months. The most common complications within the first 30 days after implant included right ventricular failure (n = 20, 1.85 events/patient-year), renal failure (n = 19, 1.76 events/patient-year) and bleeding (n = 33, 3.0 events/patient-year). Beyond 30 days adverse events included driveline infections (n = 46, 0.56 events/patient-year) and stroke (n = 33, 0.21 events/patient-year). CONCLUSIONS LVADs are an important therapeutic alternative to heart transplantation in the context of a developing heart transplant programme with outcomes that are comparable to those reported by other centres.
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Affiliation(s)
- Yuriy Pya
- JSC National Research Center for Cardiac Surgery Astana Kazakhstan
| | | | | | | | | | - Roman Salov
- JSC National Research Center for Cardiac Surgery Astana Kazakhstan
| | - Assel Medressova
- JSC National Research Center for Cardiac Surgery Astana Kazakhstan
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Pya Y, Medressova A, Novikova S, Murzagaliyev M, Dzhetybayeva S, Andossova S, Bekbossynov S, Bekbossynova M. VAD Destination Therapy Outcomes - Kazakhstan’s Experience. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.122] [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: 11/29/2022] Open
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Kapaev R, Novikova S, Kulova T, Skundin A, Yaroslavtsev A. Conductivity and electrochemical behavior of Li1-x Fe1-2x (MIIMIII) x PO4 with olivine structure. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2771-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ivanov AS, Medvedev A, Ershov P, Molnar A, Mezentsev Y, Yablokov E, Kaluzhsky L, Gnedenko O, Buneeva O, Haidukevich I, Sergeev G, Lushchyk A, Yantsevich A, Medvedeva M, Kozin S, Popov I, Novikova S, Zgoda V, Gilep A, Usanov S, Lisitsa A, Archakov A. Protein interactomics based on direct molecular fishing on paramagnetic particles: practical realization and further SPR validation. Proteomics 2014; 14:2261-74. [PMID: 25044858 DOI: 10.1002/pmic.201400117] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [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: 04/01/2014] [Revised: 05/27/2014] [Accepted: 07/10/2014] [Indexed: 01/13/2023]
Abstract
There is increasing evidence that proteins function in the cell as integrated stable or temporally formed protein complexes, interactomes. Previously, using model systems we demonstrated applicability of direct molecular fishing on paramagnetic particles for protein interactomics (Ershov et al. Proteomics, 2012, 12, 3295). In the present study, we have used a combination of affinity-based molecular fishing and subsequent MS for investigation of human liver proteins involved in interactions with immobilized microsomal cytochrome b5 (CYB5A), and also transthyretin and BSA as alternative affinity ligands (baits). The LC-MS/MS identification of prey proteins fished on these baits revealed three sets of proteins: 98, 120, and 220, respectively. Comparison analysis of these sets revealed only three proteins common for all the baits. In the case of paired analysis, the number of common proteins varied from 2 to 9. The binding capacity of some identified proteins has been validated by a SPR-based biosensor. All the investigated proteins effectively interacted with the immobilized CYB5A (Kd values ranged from 0.07 to 1.1 μM). Results of this study suggest that direct molecular fishing is applicable for analysis of protein-protein interactions (PPI) under normal and pathological conditions, in which altered PPIs are especially important.
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Affiliation(s)
- Alexis S Ivanov
- Orechovich Institute of Biomedical Chemistry, Moscow, Russia
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Novikova S, Yaroslavtsev S, Rusakov V, Kulova T, Skundin A, Yaroslavtsev A. LiFe1−xMIIxPO4/C (MII=Co, Ni, Mg) as cathode materials for lithium-ion batteries. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.08.118] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Stroganova T, Posikera I, Orekhova E, Tsetlin M, Novikova S, Kuravsky L. The nature of individual differences in EEG parameters during homogeneous visual field in 5- and 6-year-old twins: a pilot study. Clin Neurophysiol 2009; 120:1492-500. [PMID: 19559647 DOI: 10.1016/j.clinph.2009.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2007] [Revised: 03/30/2009] [Accepted: 05/15/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To assess the genetic and environmental influences on the inter-individual variability of spectral EEG parameters under two conditions of reduced visual input in preschoolers. METHODS EEG was recorded in 21 monozygotic and 20 same-sex dizygotic twin pairs aged 5-6 years under the Closed eyes and Darkness conditions. The contributions of genetic and environmental influences to individual EEG parameters were estimated using structural equation modeling. RESULTS The alpha rhythm parameters - both spectral amplitude and frequency - were influenced mainly by genetic factors. Theta spectral amplitude variance was presumably accounted for by both genetic and shared environmental factors. The difference in the nature of population variance between EEG alpha and theta band spectral amplitudes was reproduced for two identical functional loads: Closed eyes and Darkness. CONCLUSIONS The majority of EEG spectral parameters in preschool children are determined by genetic factors. Tentative finding on systematic environmental influences on theta spectral amplitude under the condition of reduced visual input may point to the role of experience in the individual differences in the functioning of theta response system. SIGNIFICANCE The findings contribute to the scanty knowledge about the heritability of EEG rhythms in preschool children.
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Affiliation(s)
- T Stroganova
- Psychological Institute of Russian Academy of Education, Moscow, Russia
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Titchenko L, Logutova L, Novikova S, Gasparian N, Dub N, Krasnopoliskaia I. Diagnostical and prognostical criteria value of the fetus intrauterine state. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)86184-6] [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: 10/26/2022]
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