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Gulin AA, Nadtochenko VA, Pogorelova VN, Melnikov MY, Pogorelov AG. Sample Preparation of Biological Tissues and Cells for the Time-of-Flight Secondary Ion Mass Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s106193482006009x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kuznetsova D, Rodimova S, Gulin A, Reunov D, Bobrov N, Polozova A, Vasin A, Shcheslavskiy V, Vdovina N, Zagainov V, Zagaynova E. Metabolic imaging and secondary ion mass spectrometry to define the structure and function of liver with acute and chronic pathology. JOURNAL OF BIOMEDICAL OPTICS 2019; 25:1-14. [PMID: 31849207 PMCID: PMC7008498 DOI: 10.1117/1.jbo.25.1.014508] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/03/2019] [Indexed: 05/09/2023]
Abstract
Conventional techniques are insufficient precisely to describe the internal structure, the heterogeneous cell populations, and the dynamics of biological processes occurring in diseased liver during surgery. There is a need for a rapid and safe method for the successful diagnosis of liver disease in order to plan surgery and to help avoid postoperative liver failure. We analyze the progression of both acute (cholestasis) and chronic (fibrosis) liver pathology using multiphoton microscopy with fluorescence lifetime imaging and second-harmonic generation modes combined with time-of-flight secondary ion mass spectrometry chemical analysis to obtain new data about pathological changes to hepatocytes at the cellular and molecular levels. All of these techniques allow the study of cellular metabolism, lipid composition, and collagen structure without staining the biological materials or the incorporation of fluorescent or other markers, enabling the use of these methods in a clinical situation. The combination of multiphoton microscopy and mass spectrometry provides more complete information about the liver structure and function than could be assessed using either method individually. The data can be used both to obtain new criteria for the identification of hepatic pathology and to develop a rapid technique for liver quality analysis in order to plan surgery and to help avoid postoperative liver failure in clinic.
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Affiliation(s)
- Daria Kuznetsova
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
- Address all correspondence to Daria Kuznetsova, E-mail:
| | - Svetlana Rodimova
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
| | - Alexander Gulin
- Russian Academy of Sciences, N.N. Semenov Federal Research Center for Chemical Physics, Moscow, Russia
- Lomonosov Moscow State University, Department of Chemistry, Moscow, Russia
| | - Dmitry Reunov
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
| | - Nikolai Bobrov
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
- Federal Medical and Biological Agency, Volga District Medical Centre, Nizhny Novgorod, Russia
| | - Anastasia Polozova
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
| | - Alexander Vasin
- Russian Academy of Sciences, N.N. Semenov Federal Research Center for Chemical Physics, Moscow, Russia
- Lomonosov Moscow State University, Department of Chemistry, Moscow, Russia
| | - Vladislav Shcheslavskiy
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
- Becker & Hickl GmbH, Berlin, Germany
| | - Natalia Vdovina
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
| | - Vladimir Zagainov
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
- Federal Medical and Biological Agency, Volga District Medical Centre, Nizhny Novgorod, Russia
| | - Elena Zagaynova
- Privolzhsky Research Medical University, Institute of Experimental Oncology and Biomedical Technologies, Nizhny Novgorod, Russia
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Rodionova NN, Allakhverdiev ES, Maksimov GV. Study of myelin structure changes during the nerve fibers demyelination. PLoS One 2017; 12:e0185170. [PMID: 28934355 PMCID: PMC5608327 DOI: 10.1371/journal.pone.0185170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 09/07/2017] [Indexed: 11/24/2022] Open
Abstract
Raman, NMR and EPR spectroscopy and electrophysiology methods were used to investigate the excitability and the packaging of myelin lipid layers and its viscosity during nerve exposure to pronase E. It was established that during exposure of nerve to pronase E the action potential (AP) conduction velocity and the Schwann cell (SC) (or myelin) water ordering increases, but the nerve myelin refractive index and internode incisions numbers decrease. This effect included two periods–short- and long-time period, probably, because the first one depends on SC protein changes and the second one–on the nerve fiber internode demyelination. It was concluded that high electrical resistance of myelin, which is important for a series of AP conduction velocity, not only depends on nerve fiber diameter and the myelin lipid composition, but also on the regularity of myelin lipid fatty acids and myelin lipid layer packing during the axoglial interaction.
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Affiliation(s)
| | | | - Georgy V. Maksimov
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia
- * E-mail:
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Yakovleva MA, Gulin AA, Feldman TB, Bel’skich YC, Arbukhanova PM, Astaf’ev AA, Nadtochenko VA, Borzenok SA, Ostrovsky MA. Time-of-flight secondary ion mass spectrometry to assess spatial distribution of A2E and its oxidized forms within lipofuscin granules isolated from human retinal pigment epithelium. Anal Bioanal Chem 2016; 408:7521-8. [DOI: 10.1007/s00216-016-9854-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/24/2016] [Accepted: 08/01/2016] [Indexed: 11/25/2022]
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Gulin A, Nadtochenko V, Astafiev A, Pogorelova V, Rtimi S, Pogorelov A. Correlating microscopy techniques and ToF-SIMS analysis of fully grown mammalian oocytes. Analyst 2016; 141:4121-9. [DOI: 10.1039/c6an00665e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An innovative protocol for the 2D-molecular thin film analysis applying ToF-SIMS, SEM, AFM and optical microscopy imaging of fully grown mice oocytes is described.
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Affiliation(s)
- Alexander Gulin
- N. N. Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- 119991 Moscow
- Russia
- Moscow State University
| | - Victor Nadtochenko
- N. N. Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- 119991 Moscow
- Russia
- Moscow State University
| | - Artyom Astafiev
- N. N. Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | | | - Sami Rtimi
- Ecole Polytechnique Fédeérale de Lausanne
- Institute of chemical sciences and engineering (ISIC)
- Lausanne
- VD
- Switzerland
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