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Zhernakova NI, Bunova SS, Agarkov NM, Lebedev DT, Aksenov VV. Vitamin D Deficiency as an Independent Predictor of Myocardial Infarction in the Elderly. Arch Razi Inst 2021; 76:1069-1076. [PMID: 35096343 PMCID: PMC8791001 DOI: 10.22092/ari.2021.356047.1766] [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] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/27/2021] [Indexed: 05/25/2023]
Abstract
Cardiovascular diseases are among the most common causes of disability and death in the world, and the number of patients with this category of diseases is increasing every year. This study aimed to investigate the role of vitamin D and the problems caused by its deficiency on the cardiovascular system. Level of D-(25(OH]D) in blood was studied by enzyme immunoassay in 95 elderly patients with myocardial infarction (MI) (the main group) and 92 elderly patients with no history of MI. The level of lipid metabolism as an indicator was determined using a KoneLab 300 auto-analyzer. Based on the results of this study, it was found that the elderly group without MI had the highest amount of D-(25(OH]D)(24.5±1.2), compared to the elderly group with MI (14.8±1.3). The rates of expressed deficiency, deficiency, and insufficiency in the group of elderly with MI were 53.6±5.1, 23.2±4.4, and 12.6±3.4%, respectively. This experiment has shown that D-(25(OH]D) is involved in lipid metabolism and reduces the accumulation of cholesterol by macrophages. The content of vitamin D in blood plasma was a prognostic predictor of MI, which improved MI in the elderly. Regardless of pathological changes, the deficit level of D-(25(OH]D) should be considered a laboratory predictor of MI in the elderly.
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Affiliation(s)
- N I Zhernakova
- FGAOU VO, Belgorod State National Research University, Belgorod, Russia
| | - S S Bunova
- FGAOU VO, Belgorod State National Research University, Belgorod, Russia
| | - N M Agarkov
- FGAOU VO, Belgorod State National Research University, Belgorod, Russia
| | - D T Lebedev
- FGAOU VO, Belgorod State National Research University, Belgorod, Russia
| | - V V Aksenov
- FGBOU VO, South-West State University, Kursk, Russia
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Golyashov VA, Rusetsky VS, Shamirzaev TS, Dmitriev DV, Kislykh NV, Mironov AV, Aksenov VV, Tereshchenko OE. Spectral detection of spin-polarized ultra low-energy electrons in semiconductor heterostructures. Ultramicroscopy 2020; 218:113076. [PMID: 32738565 DOI: 10.1016/j.ultramic.2020.113076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/07/2020] [Accepted: 07/11/2020] [Indexed: 10/23/2022]
Abstract
The circularly polarized cathodoluminescence (CL) technique has been used to study the free spin-polarized electron injection in semiconductor heterostructures with quantum wells (QWs). A polarized electron beam was created by the emission of optically oriented electrons from the p-GaAs(Cs,O) negative electron affinity (NEA) photocathode. The prepared beam was injected in a semiconductor QW target, which was activated by cesium and oxygen to reduce the work function. To study the spin-dependent injection, we developed a spin-detector prototype, which consists of a compact proximity focused vacuum tube with the source and target placed parallel to each other on the opposite ends of the vacuum tube (photodiode). The injection of polarized low-energy electrons into the target by varying the kinetic energy in the range of 0.5-5.0 eV and temperature in the range of 90-300 K was studied. The CL was polarized to 2 % by the injection of 20 % spin-polarized electron beam with the energy of 0.5 eV at room temperature. The asymmetry (Sherman function) of spin detection was estimated. It was shown that the dependence of the CL polarization degree on the injected electron energy is satisfactory described by the model that considers the electron spin relaxation in the heterostructure matrix and QWs. The results demonstrate that semiconductor detectors are promising for the spin-polarimetry applications based on the optical detection of free-electron spin polarization.
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Affiliation(s)
- V A Golyashov
- Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation; Novosibirsk State University, Novosibirsk, 630090, Russian Federation
| | - V S Rusetsky
- Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation; CJSC EKRAN-FEP, Novosibirsk 630060, Russian Federation
| | - T S Shamirzaev
- Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation; Novosibirsk State University, Novosibirsk, 630090, Russian Federation
| | - D V Dmitriev
- Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
| | - N V Kislykh
- CJSC EKRAN-FEP, Novosibirsk 630060, Russian Federation
| | - A V Mironov
- CJSC EKRAN-FEP, Novosibirsk 630060, Russian Federation
| | - V V Aksenov
- CJSC EKRAN-FEP, Novosibirsk 630060, Russian Federation
| | - O E Tereshchenko
- Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation; Novosibirsk State University, Novosibirsk, 630090, Russian Federation.
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Agarkov NM, Golovchenko OV, Okhotnikov OI, Budnik IV, Aksenov VV, Ivanov VA. [The development of diagnostic of acute endometritis on the basis of modeling and cluster analysis of parameters of local immunity.]. Klin Lab Diagn 2019; 63:239-242. [PMID: 30677280 DOI: 10.18821/0869-2084-2018-63-4-239-242] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/25/2018] [Indexed: 11/17/2022]
Abstract
The acute endometritis provoking expressed disorders of local immunity is considered as one of the prevalent complications of postnatal period and abortions. The purpose of study is to develop diagnostic of acute endometritis on the basis of applied correlation modeling and cluster analysis techniques diagnostically priority-driven immunological indices of vaginal cervical mucus. The sample included main group (154 patients with acute endometritis) and control group (103 patients with uncomplicated post-natal period). Both groups were subjected to enzyme-linked immunosorbent assay to analyze content of immunoglobulins, components of complement and lysozyme in vaginal cervical mucus. The sampling of diagnostically significant indices was implemented using correlation and cluster analysis techniques. It is established that chief diagnostic indices of local immunity in case of acute endometritis are IG M, sIg A, С4 components of complement and lysozyme. The established diagnostically significant parameters of local immunity provide development of detection of acute endometritis according less number of indices.
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Affiliation(s)
- N M Agarkov
- The Federal State Budget Educational Institution of Higher Education "The South-Western State University", 305040, Kursk, Russia
| | - O V Golovchenko
- The Oblast State Budget Health Care Institution "The Prelate Josaphat Belgorod Oblast Clinical Hospital", 308007, Belgorod, Russia
| | - O I Okhotnikov
- The Federal State Budget Educational Institution of Higher education "The Kursk State Medical University", 305041, Kursk, Russia
| | - I V Budnik
- The Federal State Budget Educational Institution of Higher Education "The South-Western State University", 305040, Kursk, Russia
| | - V V Aksenov
- The Federal State Budget Educational Institution of Higher Education "The South-Western State University", 305040, Kursk, Russia
| | - V A Ivanov
- The Federal State Budget Educational Institution of Higher education "The Kursk State Medical University", 305041, Kursk, Russia
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Goloschapov-Aksenov RS, Aksenov VV, Lutsenko VD. [The prognostication of acute myocardium infarction according biochemical indices of blood.]. Klin Lab Diagn 2019; 63:85-89. [PMID: 30672671 DOI: 10.18821/0869-2084-2018-63-2-85-89] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 11/01/2017] [Indexed: 11/17/2022]
Abstract
In actual conditions, the acute myocardium infarction is a main cause of population mortality factually in all countries. The purpose of study is to establish a prognostic significance of biochemical cardio-markers of blood and to develop prognostic models for acute myocardium infarction. The sampling included 157 patients with acute myocardium infarction and 138 healthy individuals. The cardio-markers in blood were analyzed using immune chromatographic and spectrometric techniques and also applying portable biochemical analyzer MultiCareIn (Italy). It is demonstrated that the highest prognostic value for development of acute myocardium infarction is increasing of level of creatine kinase in blood more than 25 ME/l, troponin - more than 0.5 mkg/l, lactate dehydrogenase 1 - more than 200 ME/l and lactate dehydrogenase 2 - more than 180 ME/l. The developed regression model for prognosis of acute myocardium infarction according the indices mentioned above has a high sensitivity and specificity. Conclusion. The application of prognostically significant cardio-markers of blood and developed regression model permits to forecast development of acute myocardium infarction and to implement prevention and treatment in earlier period.
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Affiliation(s)
- R S Goloschapov-Aksenov
- The Federal State Autonomous Educational Institution of Higher Education "The Peoples' Friendship University of Russia", 117198, Moscow, Russia
| | - V V Aksenov
- The Federal State Budget Educational Institution of Higher Education "The South-Western State University", 308015, Kursk, Russia
| | - V D Lutsenko
- The Federal State Autonomous Educational Institution of Higher Education "The Belgorod State National Research University", 308015, Belgorod, Russia
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Agarkov NM, Tkachenko PV, Zamulin DO, Aksenov VV, Gontareva IS, Kicha DI, Mishenin MO. [The prognostication of development of peri-apical abscess under chronic periodontitis by blood parameters and cell immunity in children]. Klin Lab Diagn 2018; 63:31-34. [PMID: 30550088 DOI: 10.18821/0869-2084-2018-63-1-31-34] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 06/21/2017] [Indexed: 11/17/2022]
Abstract
The chronic periodontitis in children is frequently complicated by development of periapical abscess under inadequate conservative therapy. However, prognostic models of estimation of probability of its development are lacking. The purpose of study is to develop regression models of prognostication of periapical abscess under chronic periodontitis in children according indices of peripheral blood and systemic cellular immunity. The chronic periodontitis complicated with periapical abscess is analyzed in 120 children aged from 8 to 15 years. The prognostication of periapical abscess was implemented by stepwise regression technique using parameters of blood and systemic cellular immunity. The mathematical models are developed for prognostication of periapical abscess in children with chronic periodontitis on the basis of indices of peripheral blood and systemic cellular immunity permitting to prognosticate development of the given complication with needed quality. The prognostication periapical abscess requires using the given models, absolute number of lymphocytes, percentage of stab bond neutrophils, ESR, absolute number of T-lymphocytes in blood, T-helpers, T-suppressors and relative content of T-suppressors.
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Affiliation(s)
- N M Agarkov
- The Federal state budget educational institution of higher education "The South-Western state university", 305040, Kursk, Russia
| | - P V Tkachenko
- The Federal state budget educational institution of higher education "The Kursk state medical university", 3050412, Kursk, Russia
| | - D O Zamulin
- The Federal state budget educational institution of higher education "The South-Western state university", 305040, Kursk, Russia
| | - V V Aksenov
- The Federal state budget educational institution of higher education "The South-Western state university", 305040, Kursk, Russia
| | - I S Gontareva
- The Federal state autonomous educational institution of higher education research university "The Belgorod state university", 308015, Belgorod, Russia
| | - D I Kicha
- The Federal state autonomous educational institution of higher education "The peoples' friendship university of Russia", 117198, Moscow, Russia
| | - M O Mishenin
- The Federal state budget educational institution of higher education "The South-Western state university", 305040, Kursk, Russia
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Agarkov NM, Makkonen KF, Aksenov VV, Tkachenko PV, Ivanov VA, Ivanov AV, Subbotina TI. [The differentiated diagnostic of chronic salpingoophoritis and ovary cancer on the basis of immunologic and discriminant techniquea.]. Klin Lab Diagn 2017; 62:611-615. [PMID: 30821942 DOI: 10.18821/0869-2084-2017-62-10-611-615] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 05/24/2017] [Indexed: 11/17/2022]
Abstract
The ovary cancer and chronic salpingoophoritis are among leading pathologies of female's sexual sphere and a main cause of morbidity and mortality of female population. The purpose of study was to select leading differential diagnostic indices of systemic cellular immunity and to carry out a differentiation of patients with ovary cancer and chronic salpingoophoritis using discriminant technique. The differentiated diagnostic of ovary cancer and chronic salpingoophoritis was applied to 92 and 87 patients correspondingly to indices of systemic cellular immunity and analyzed by flow cytometry technique. It is demonstrated that the main differential diagnostic indices of systemic cellular immunity in case of ovary cancer and chronic salpingoophoritis are decreasing of relative content of natural killers, absolute number of B-lymphocytes and T-helpers. The developed discriminant models permit to carry out in 91.8%-92.1% cases a faultless differentiated diagnostic of ovary cancer and chronic salpingoophoritis. The approach like that increases quality of differentiated diagnostic of ovary cancer and chronic salpingoophoritis.
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Affiliation(s)
- N M Agarkov
- The South-Western state university, 305040, Kursk, Russia
| | - K F Makkonen
- The Belgorodskii state national research institute, 308015, Belgorod, Russia
| | - V V Aksenov
- The South-Western state university, 305040, Kursk, Russia
| | - P V Tkachenko
- The Kurskii state medical university, 305041, Kursk, Russia
| | - V A Ivanov
- The Kurskii state university, 305000, Kursk, Russia
| | - A V Ivanov
- The Kurskii state medical university, 305041, Kursk, Russia
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Agarkov NM, Makkonen KF, Aksenov VV, Yakovlev AP, Lutsenko VD. [The application of flow cytometry technique and diagnostically significant indices of systemic cellular immunity for diagnostic of acute endometritis.]. Klin Lab Diagn 2017; 62:563-567. [PMID: 30807057 DOI: 10.18821/0869-2084-2017-62-9-563-567] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 05/11/2017] [Indexed: 11/17/2022]
Abstract
The acute endometritis is a the most widespread pathology among women of reproductive age.The immune system plays a leading role in its development. However, there is no data concerning the most informative parameters of cell immunity. The purpose of study is to enhance diagnostic of acute endometritis using immunologic technique with objective evaluation of diagnostic value of indices of systemic cell immunity. The indices of cell immunity are analyzed on sampling of 78 patients with postnatal acute endometritis and 54 healthy women. The technique of flow cytometry was applied with subsequent calculation of index of informativeness and disintegration objectifying selection of diagnostically significant parameters. It is demonstrated that full-fledged diagnostic of acute endometritis requires detection of absolute and relative content of T-helpers and natural killers having high value of informativeness and disintegration. Hence an opportunity to reduce number of analyzed parameters of systemic cell immunity and financial costs of diagnostic of acute endometritis.
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Affiliation(s)
- N M Agarkov
- The Southern-Western state university, 305040, Kursk, Russia
| | - K F Makkonen
- The Belgorodskii state national research university, 308015, Belgorod, Russia
| | - V V Aksenov
- The Southern-Western state university, 305040, Kursk, Russia
| | - A P Yakovlev
- The Southern-Western state university, 305040, Kursk, Russia
| | - V D Lutsenko
- The Belgorodskii state national research university, 308015, Belgorod, Russia
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Aksenova TV, Pavlov VI, Aksenov VV. An Algorithm-Based Program of an Information and Measurement System for Monitoring the Technical State of Pipelines. Chem Petrol Eng 2015. [DOI: 10.1007/s10556-015-0087-z] [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]
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Kashuro VA, Glushkov SI, Novikova TM, Aksenov VV. [Cardioprotective effect of cytoflavine on a model of doxorubicin-induced cardiomyopathy]. Eksp Klin Farmakol 2010; 73:15-17. [PMID: 20408423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Experimental data on the influence of repeated administration of doxorubicin in a dose of 2.24 mg/kg on the glutathione exchange in heart tissues and erythrocytes of white outbred rats are presented. It was shown that disorders in the natural cytoprotection system caused by the introduction of this cardiotropic agent, can be corrected using a combined preparation of cytoflavin.
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Glushkov SI, Kutsenko SA, Novikova TM, Aksenov VV. [Glutathione metabolism in rat cardiac tissues in acute doxorubicin-induced intoxication]. Vopr Onkol 2005; 51:108-12. [PMID: 15909818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Experimental data are presented on the influence of acute doxorubicin intoxication with 7.47 and 2.34 mg/kg body mass on glutathione metabolism in cardiac tissues of albino non-inbred rats. Doxorubicin toxic effect resulted in such marked changes as decreased concentration of reduced glutathione and abnormal levels of glutathione reductase, glucoso-6-phoshate dehydrogenase, glutathione peroxidase and glutathione-S-transferase. Possible causes of such biochemical changes as well as their role in causation of doxorubicin cytotoxic effect are discussed. New methods of prophylaxis and lab diagnosis of doxorubicin-induced cardiomyopathy are suggested.
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Kuntysh VB, Aksenov VV, Roshchin SP. Intensification of heat exchange in bundles of finned tubes by the method of jet air cooling. Chem Petrol Eng 1997. [DOI: 10.1007/bf02396029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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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Aksenov VV, Tazetdinov IG. [Evaluation of the chrono- and inotropic functions of the heart at different degrees of physical training of the body]. Fiziol Cheloveka 1985; 11:96-101. [PMID: 3979720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Aksenov VV, Vlasov VM, Danilkin VI, Naumova OY, Rodionov PP, Chertok VS, Shnitko GN, Yakobson GG. Substitution of chlorine by fluorine in chloroaromatic compounds by the action of potassium and cesium fluorides in graphite. Russ Chem Bull 1984. [DOI: 10.1007/bf00948669] [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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Aksenov VV, Vlasov VM, Danilkin VI, Naumova OY, Rodionov PP, Chertok VS, Shnitko GN, Yakobson GG. Reaction of polyfluoroaromatic compounds with nucleophiles in the presence of alkali metal fluorides in graphite. Russ Chem Bull 1984. [DOI: 10.1007/bf00948668] [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: 11/25/2022]
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Aksenov VV, Barbolin VV, Ignat'ev IT, Rozhkov NF. [A device for use in podography]. Med Tekh 1984:33-6. [PMID: 6482717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Described in the paper is the podographic unit for measuring a foot eversion angle and time- and phase-dependent parameters of foot swing and stance. It may be useful in examinations of sportsmen and young people, in mass population screening for detection of gait defects and their correction, in the course of diagnostic orthopedic studies of the lower limbs.
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Shusterov BG, Saliukov IL, Statnikov AK, Aksenov VV, Filatov GV. [Case of angiofollicular hyperplasia of a peribronchial lymph node]. Vestn Rentgenol Radiol 1978:87-90. [PMID: 716210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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