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Zykova MV, Bratishko KA, Buyko EE, Azarkina LA, Ivanov VV, Mihalyov DA, Trofimova ES, Danilets MG, Ligacheva AA, Konstantinov AI, Ufandeev AA, Rabtsevich ES, Drygunova LA, Zima AP, Bashirov SR, Udut EV, Belousov MV. Coal-Derived Humic Substances: Insight into Chemical Structure Parameters and Biomedical Properties. Molecules 2024; 29:1530. [PMID: 38611808 PMCID: PMC11013056 DOI: 10.3390/molecules29071530] [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: 01/31/2024] [Revised: 03/23/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
An investigation was carried out on humic substances (HSs) isolated from the coal of the Kansk-Achinsk basin (Krasnoyarsk Territory, Russia). The coal HSs demonstrate the main parameters of molecular structure inherent to this class of natural compounds. An assessment was performed for the chemical, microbiological, and pharmacological safety parameters, as well as the biological efficacy. The HS sample meets the safety requirements in microbiological purity, toxic metals content (lead, cadmium, mercury, arsenic), and radionuclides. The presence of 11 essential elements was determined. The absence of general, systemic toxicity, cytotoxicity, and allergenic properties was demonstrated. The coal HS sample was classified as a Class V hazard (low danger substances). High antioxidant and antiradical activities and immunotropic and cytoprotective properties were identified. The ability of the HS to inhibit hydroxyl radicals and superoxide anion radicals was revealed. Pronounced actoprotective and nootropic activities were also demonstrated in vivo. Intragastric administration of the HS sample resulted in the improvement of physical parameters in mice as assessed by the "swim exhaustion" test. Furthermore, intragastric administration in mice with cholinergic dysfunction led to a higher ability of animals with scopolamine-induced amnesia to form conditioned reflexes. These findings suggest that the studied HS sample is a safe and effective natural substance, making it suitable for use as a dietary bioactive supplement.
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Affiliation(s)
- Maria V. Zykova
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Kristina A. Bratishko
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Evgeny E. Buyko
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Lyudmila A. Azarkina
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Vladimir V. Ivanov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Dmitrii A. Mihalyov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Evgeniya S. Trofimova
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, 634050 Tomsk, Russia; (M.G.D.); (A.A.L.)
| | - Marina G. Danilets
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, 634050 Tomsk, Russia; (M.G.D.); (A.A.L.)
| | - Anastasia A. Ligacheva
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, 634050 Tomsk, Russia; (M.G.D.); (A.A.L.)
| | - Andrey I. Konstantinov
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia;
| | - Alexander A. Ufandeev
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Evgenia S. Rabtsevich
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
- Tomsk State University, 634050 Tomsk, Russia
| | - Larisa A. Drygunova
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Anastasia P. Zima
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Sergey R. Bashirov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Elena V. Udut
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
| | - Mikhail V. Belousov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (K.A.B.); (E.E.B.); (L.A.A.); (V.V.I.); (D.A.M.); (E.S.T.); (A.A.U.); (E.S.R.); (L.A.D.); (A.P.Z.); (S.R.B.); (E.V.U.); (M.V.B.)
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Zykova MV, Volikov AB, Buyko EE, Bratishko KA, Ivanov VV, Konstantinov AI, Logvinova LA, Mihalyov DA, Sobolev NA, Zhirkova AM, Maksimov SV, Perminova IV, Belousov MV. Enhanced Antioxidant Activity and Reduced Cytotoxicity of Silver Nanoparticles Stabilized by Different Humic Materials. Polymers (Basel) 2023; 15:3386. [PMID: 37631443 PMCID: PMC10457742 DOI: 10.3390/polym15163386] [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: 07/31/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
The current article describes the biological activity of new biomaterials combining the "green" properties of humic substances (HSs) and silver nanoparticles. The aim is to investigate the antioxidant activity (AOA) of HS matrices (macroligands) and AgNPs stabilized with humic macroligands (HS-AgNPs). The unique chemical feature of HSs makes them very promising ligands (matrices) for AgNP stabilization. HSs have previously been shown to exert many pharmacological effects mediated by their AOA. AgNPs stabilized with HS showed a pronounced ability to bind to reactive oxygen species (ROS) in the test with ABTS. Also, higher AOA was observed for HS-AgNPs as compared to the HS matrices. In vitro cytotoxicity studies have shown that the stabilization of AgNPs with the HS matrices reduces the cytotoxicity of AgNPs. As a result of in vitro experiments with the use of 2,7-dichlorodihydrofluorescein diacetate (DCFDA), it was found that all HS materials tested and the HS-AgNPs did not exhibit prooxidant effects. Moreover, more pronounced AOA was shown for HS-AgNP samples as compared to the original HS matrices. Two putative mechanisms of the pronounced AOA of the tested compositions are proposed: firstly, the pronounced ability of HSs to inactivate ROS and, secondly, the large surface area and surface-to-volume ratio of HS-AgNPs, which facilitate electron transfer and mitigate kinetic barriers to the reduction reaction. As a result, the antioxidant properties of the tested HS-AgNPs might be of particular interest for biomedical applications aimed at inhibiting the growth of bacteria and viruses and the healing of purulent wounds.
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Affiliation(s)
- Maria V. Zykova
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
| | - Alexander B. Volikov
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia; (A.B.V.); (A.I.K.); (N.A.S.); (A.M.Z.); (S.V.M.); (I.V.P.)
| | - Evgeny E. Buyko
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
| | - Kristina A. Bratishko
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
| | - Vladimir V. Ivanov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
| | - Andrey I. Konstantinov
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia; (A.B.V.); (A.I.K.); (N.A.S.); (A.M.Z.); (S.V.M.); (I.V.P.)
| | - Lyudmila A. Logvinova
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
| | - Dmitrii A. Mihalyov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
| | - Nikita A. Sobolev
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia; (A.B.V.); (A.I.K.); (N.A.S.); (A.M.Z.); (S.V.M.); (I.V.P.)
| | - Anastasia M. Zhirkova
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia; (A.B.V.); (A.I.K.); (N.A.S.); (A.M.Z.); (S.V.M.); (I.V.P.)
| | - Sergey V. Maksimov
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia; (A.B.V.); (A.I.K.); (N.A.S.); (A.M.Z.); (S.V.M.); (I.V.P.)
| | - Irina V. Perminova
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia; (A.B.V.); (A.I.K.); (N.A.S.); (A.M.Z.); (S.V.M.); (I.V.P.)
| | - Mikhail V. Belousov
- Pharmaceutical Faculty, Siberian State Medical University, 634050 Tomsk, Russia; (E.E.B.); (K.A.B.); (V.V.I.); (L.A.L.); (D.A.M.); (M.V.B.)
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Zykova MV, Brazovsky KS, Veretennikova EE, Danilets MG, Logvinova LA, Romanenko SV, Trofimova ES, Ligacheva AA, Bratishko KA, Yusubov MS, Lyapkov AA, Belousov MV. New artificial network model to estimate biological activity of peat humic acids. Environ Res 2020; 191:109999. [PMID: 32784018 DOI: 10.1016/j.envres.2020.109999] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/05/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE This article focuses on new method to estimate biological activity of peat humic acids (HAs) using artificial neural network (ANN) to process spectroscopic measurements in infrared and visible ranges. Conventional approaches generally rely on biological models and direct detection of chemical substances related to bioactivity. These methods proved to be accurate and reliable, but at the expense of speed and simplicity. MATERIALS AND METHODS Recently, a conception of quantitative structure-activity relationship (QSAR) has been introduced and successfully implemented to predict effects of HAs on toxicity of polycyclic aromatic hydrocarbons. Our research stems from this conception, but employs multilayer perceptron (MLP) model to improve overall performance. The developed MLP model allowed us to estimate biological activity of the complete vertical peat cores collected from oligotrophic peat bog, located in southern taiga zone of West Siberia (north-eastern spurs of the Great Vasyugan Mire, 56°58' N 82о36' E). In total, 42 samples taken from the cores were collected. The protocol included spectroscopy (in infrared and visible ranges) and biological model with peritoneal activated macrophages as a reference method to directly measure biological activity of HAs. RESULTS and discussion. Numerical experiments confirmed consistency of the measured and estimated bioactivity, coefficient of determination R2 = 0.97. These experiments also showed that the MLP model significantly outperforms conventional linear multiple regression models, mainly due to essential nonlinearity of structure-activity relationships. CONCLUSIONS Our research demonstrates that biological activity of HAs extracted from peat samples can be estimated using an artificial neural network model trained on infrared and visible spectra.
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Affiliation(s)
- Maria V Zykova
- Siberian State Medical University, Tomsk, 634050, Russia.
| | | | - Elena E Veretennikova
- Siberian State Medical University, Tomsk, 634050, Russia; Institute of Monitoring of Climatic and Ecological Systems RAS, Russia
| | - Marina G Danilets
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk NRMC, Tomsk, 634050, Russia
| | | | - Sergey V Romanenko
- Siberian State Medical University, Tomsk, 634050, Russia; National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Evgenia S Trofimova
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk NRMC, Tomsk, 634050, Russia
| | - Anastasia A Ligacheva
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk NRMC, Tomsk, 634050, Russia
| | - Kristina A Bratishko
- Siberian State Medical University, Tomsk, 634050, Russia; National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Mekhman S Yusubov
- National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Alexey A Lyapkov
- National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Michael V Belousov
- Siberian State Medical University, Tomsk, 634050, Russia; National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
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Zykova MV, Schepetkin IA, Belousov MV, Krivoshchekov SV, Logvinova LA, Bratishko KA, Yusubov MS, Romanenko SV, Quinn MT. Physicochemical Characterization and Antioxidant Activity of Humic Acids Isolated from Peat of Various Origins. Molecules 2018; 23:molecules23040753. [PMID: 29587351 PMCID: PMC6017172 DOI: 10.3390/molecules23040753] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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: 03/05/2018] [Revised: 03/20/2018] [Accepted: 03/22/2018] [Indexed: 01/18/2023] Open
Abstract
Although humic acids (HAs) from peat exhibit various therapeutic properties, there is little information available concerning their physicochemical and antioxidant properties. To address this issue, nine different types of peat, including oligotrophic, mesotrophic, and minerotrophic peat samples, were used for isolation of HA fractions by basic (HAb) and pyrophosphate (HAp) extractions. Physical parameters of the HAs were analyzed by UV-Vis, fluorescent, infrared (IR), and electron paramagnetic resonance (EPR) spectroscopy. Average Mr of the fractions ranged from 17.2 to 39.7 kDa, while their humification index (HIX) varied from 0.49 to 1.21. HAp fractions had a higher content of aromatic structures compared to HAb fractions. Moreover, HAp fractions had a significantly higher content of phenolic OH groups (3.6 ± 0.5 mmol/g) versus HAb (3.1 ± 0.5 mmol/g). All HA fractions exhibited antioxidant activity in radical scavenging and electrochemical assays, and their EPR signal had a single line with g = 2.0035, which is consistent with semiquinone type radicals. Furthermore, the HIX was found to be important in determining the number of semiquinone-type free radicals in the HA structures. Overall, these data provide a molecular basis to explain at least part of the beneficial therapeutic properties of peat-derived HAs.
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Affiliation(s)
- Maria V Zykova
- Department of Chemistry, Siberian State Medical University, Tomsk 634050, Russia.
| | - Igor A Schepetkin
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA.
| | - Michael V Belousov
- Department of Pharmaceutical Analysis, Siberian State Medical University, Tomsk 634050, Russia.
| | - Sergey V Krivoshchekov
- Department of Pharmaceutical Analysis, Siberian State Medical University, Tomsk 634050, Russia.
- Research School of Chemical and Biomedical Technologies, Tomsk Polytechnic University, Tomsk 634050, Russia.
| | - Lyudmila A Logvinova
- Department of Chemistry, Siberian State Medical University, Tomsk 634050, Russia.
| | - Kristina A Bratishko
- Department of Chemistry, Siberian State Medical University, Tomsk 634050, Russia.
| | - Mekhman S Yusubov
- Department of Chemistry, Siberian State Medical University, Tomsk 634050, Russia.
- Research School of Chemical and Biomedical Technologies, Tomsk Polytechnic University, Tomsk 634050, Russia.
| | - Sergey V Romanenko
- Department of Chemistry, Siberian State Medical University, Tomsk 634050, Russia.
- Research School of Chemical and Biomedical Technologies, Tomsk Polytechnic University, Tomsk 634050, Russia.
| | - Mark T Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA.
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