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Kozin S, Skrebitsky V, Kondratenko R, Kravtsov A, Butina E, Moiseev A, Malyshko V, Baryshev M, Elkina A, Dzhimak S. Electrophysiological Activity and Survival Rate of Rats Nervous Tissue Cells Depends on D/H Isotopic Composition of Medium. Molecules 2021; 26:2036. [PMID: 33918525 PMCID: PMC8038400 DOI: 10.3390/molecules26072036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/31/2021] [Accepted: 03/31/2021] [Indexed: 12/14/2022] Open
Abstract
The deuterium content modification in an organism has a neuroprotective effect during the hypoxia model, affecting anxiety, memory and stress resistance. The aim of this work was to elucidate the possible mechanisms of the medium D/H composition modification on nerve cells. We studied the effect of an incubation medium with a 50 ppm deuterium content compared to a medium with 150 ppm on: (1) the activity of Wistar rats' hippocampus CA1 field neurons, (2) the level of cultured cerebellar neuron death during glucose deprivation and temperature stress, (3) mitochondrial membrane potential (MMP) and the generation of reactive oxygen species in cultures of cerebellar neurons. The results of the analysis showed that the incubation of hippocampal sections in a medium with a 50 ppm deuterium reduced the amplitude of the pop-spike. The restoration of neuron activity was observed when sections were returned to the incubation medium with a 150 ppm deuterium content. An environment with a 50 ppm deuterium did not significantly affect the level of reactive oxygen species in neuron cultures, while MMP decreased by 16-20%. In experiments with glucose deprivation and temperature stress, the medium with 50 ppm increased the death of neurons. Thus, a short exposure of nerve cells in the medium with 50 ppm deuterium acts as an additional stressful factor, which is possibly associated with the violation of the cell energy balance. The decrease in the mitochondrial membrane potential, which is known to be associated with ATP synthesis, indicates that this effect may be associated with the cell energy imbalance. The decrease in the activity of the CA1 field hippocampal neurons may reflect reversible adaptive changes in the operation of fast-reacting ion channels.
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Affiliation(s)
- Stanislav Kozin
- Kuban State University, 350040 Krasnodar, Russia; (S.K.); (A.K.); (M.B.); (S.D.)
- South Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
| | | | | | - Alexander Kravtsov
- Kuban State University, 350040 Krasnodar, Russia; (S.K.); (A.K.); (M.B.); (S.D.)
- South Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
| | - Elena Butina
- Kuban State Technological University, 350072 Krasnodar, Russia;
| | - Arkady Moiseev
- Kuban State Agrarian University, 350044 Krasnodar, Russia;
| | - Vadim Malyshko
- South Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
- Kuban State Medical University of Ministry of Health of Russia, 350044 Krasnodar, Russia
| | - Mikhail Baryshev
- Kuban State University, 350040 Krasnodar, Russia; (S.K.); (A.K.); (M.B.); (S.D.)
- South Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
- Kuban State Technological University, 350072 Krasnodar, Russia;
| | - Anna Elkina
- Kuban State University, 350040 Krasnodar, Russia; (S.K.); (A.K.); (M.B.); (S.D.)
- South Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
| | - Stepan Dzhimak
- Kuban State University, 350040 Krasnodar, Russia; (S.K.); (A.K.); (M.B.); (S.D.)
- South Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
- The V.M. Gorbatov Federal Research Center for Food Systems of the Russian Academy of Sciences, 109316 Moscow, Russia
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Kozin SV, Kravtsov AA, Elkina AA, Zlishcheva EI, Barysheva EV, Shurygina LV, Moiseev AV, Baryshev MG. Isotope Exchange of Deuterium for Protium in Rat Brain Tissues Changes Brain Tolerance to Hypoxia. Biophysics (Nagoya-shi) 2019. [DOI: 10.1134/s0006350919020106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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