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Tseilikman VE, Tseilikman OB, Pashkov AA, Ivleva IS, Karpenko MN, Shatilov VA, Zhukov MS, Fedotova JO, Kondashevskaya MV, Downey HF, Manukhina EB. Mechanisms of Susceptibility and Resilience to PTSD: Role of Dopamine Metabolism and BDNF Expression in the Hippocampus. Int J Mol Sci 2022; 23:ijms232314575. [PMID: 36498900 PMCID: PMC9737079 DOI: 10.3390/ijms232314575] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022] Open
Abstract
Susceptibility and resilience to post-traumatic stress disorder (PTSD) are recognized, but their mechanisms are not understood. Here, the hexobarbital sleep test (HST) was used to elucidate mechanisms of PTSD resilience or susceptibility. A HST was performed in rats 30 days prior to further experimentation. Based on the HST, the rats were divided into groups: (1) fast metabolizers (FM; sleep duration < 15 min); (2) slow metabolizers (SM; sleep duration ≥ 15 min). Then the SM and FM groups were subdivided into stressed (10 days predator scent, 15 days rest) and unstressed subgroups. Among stressed animals, only SMs developed experimental PTSD, and had higher plasma corticosterone (CORT) than stressed FMs. Thus, resilience or susceptibility to PTSD was consistent with changes in glucocorticoid metabolism. Stressed SMs had a pronounced decrease in hippocampal dopamine associated with increased expressions of catecholamine-O-methyl-transferase and DA transporter. In stressed SMs, a decrease in monoaminoxidase (MAO) A was associated with increased expressions of hippocampal MAO-A and MAO-B. BDNF gene expression was increased in stressed FMs and decreased in stressed SMs. These results demonstrate relationships between the microsomal oxidation phenotype, CORT concentration, and anxiety, and they help further the understanding of the role of the liver−brain axis during PTSD.
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Affiliation(s)
- Vadim E. Tseilikman
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
| | - Olga B. Tseilikman
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
- Department of Basic Medicine, Chelyabinsk State University, 454001 Chelyabinsk, Russia
| | - Anton A. Pashkov
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
- Federal Neurosurgical Center, 630048 Novosibirsk, Russia
| | - Irina S. Ivleva
- Pavlov Department of Physiology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | - Marina N. Karpenko
- Pavlov Department of Physiology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | | | - Maxim S. Zhukov
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
| | - Julia O. Fedotova
- Laboratory of Neuroendocrinology, Pavlov Institute of Physiology, 199034 Saint Petersburg, Russia
| | - Marina V. Kondashevskaya
- Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, 117418 Moscow, Russia
| | - H. Fred Downey
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Correspondence:
| | - Eugenia B. Manukhina
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Laboratory for Regulatory Mechanisms of Stress and Adaptation, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia
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Komelkova M, Manukhina E, Downey HF, Sarapultsev A, Cherkasova O, Kotomtsev V, Platkovskiy P, Fedorov S, Sarapultsev P, Tseilikman O, Tseilikman D, Tseilikman V. Hexobarbital Sleep Test for Predicting the Susceptibility or Resistance to Experimental Posttraumatic Stress Disorder. Int J Mol Sci 2020; 21:E5900. [PMID: 32824478 PMCID: PMC7460591 DOI: 10.3390/ijms21165900] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/04/2020] [Accepted: 08/14/2020] [Indexed: 11/29/2022] Open
Abstract
Hexobarbital sleep test (HST) was performed in male Wistar rats (hexobarbital 60 mg/kg, i.p.) 30 days prior to stress exposure. Based on the duration of hexobarbital-induced sleep, rats were divided into two groups, animals with high intensity (fast metabolizers (FM), sleep duration <15 min) or low intensity of hexobarbital metabolism (slow metabolizers (SM), sleep duration ≥15 min). The SM and FM groups were then divided into two subgroups: unstressed and stressed groups. The stressed subgroups were exposed to predator scent stress for 10 days followed by 15 days of rest. SM and FM rats from the unstressed group exhibited different behavioral and endocrinological patterns. SM showed greater anxiety and higher corticosterone levels. In stressed animals, anxiety-like posttraumatic stress disorder (PTSD) behavior was aggravated only in SM. Corticosterone levels in the stressed FM, PTSD-resistant rats, were lower than in unstressed SM. Thus, HST was able to predict the susceptibility or resistance to experimental PTSD, which was consistent with the changes in glucocorticoid metabolism.
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Affiliation(s)
- Maria Komelkova
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia; (M.K.); (E.M.); (H.F.D.); (O.T.); (V.T.)
- Institute of Immunology and Physiology, Ural Division of the Russian Academy of Sciences, 620049 Ekaterinburg, Russia; (V.K.); (P.S.)
| | - Eugenia Manukhina
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia; (M.K.); (E.M.); (H.F.D.); (O.T.); (V.T.)
- Laboratory for Regulatory Mechanisms of Stress and Adaptation, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - H. Fred Downey
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia; (M.K.); (E.M.); (H.F.D.); (O.T.); (V.T.)
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Division of the Russian Academy of Sciences, 620049 Ekaterinburg, Russia; (V.K.); (P.S.)
| | - Olga Cherkasova
- Biophysics Laboratory, Institute of Laser Physics, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia;
| | - Viacheslav Kotomtsev
- Institute of Immunology and Physiology, Ural Division of the Russian Academy of Sciences, 620049 Ekaterinburg, Russia; (V.K.); (P.S.)
- Laboratory of Biomedical Research, Ural Research Institute for Phthisiopulmonology of Ministry of Health of Russian Federation, 620039 Ekaterinburg, Russia
| | - Pavel Platkovskiy
- Department of Fundamental Medicine, Chelyabinsk State University, 454001 Chelyabinsk, Russia; (P.P.); (S.F.); (D.T.)
| | - Stanislav Fedorov
- Department of Fundamental Medicine, Chelyabinsk State University, 454001 Chelyabinsk, Russia; (P.P.); (S.F.); (D.T.)
| | - Petr Sarapultsev
- Institute of Immunology and Physiology, Ural Division of the Russian Academy of Sciences, 620049 Ekaterinburg, Russia; (V.K.); (P.S.)
| | - Olga Tseilikman
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia; (M.K.); (E.M.); (H.F.D.); (O.T.); (V.T.)
- Department of Fundamental Medicine, Chelyabinsk State University, 454001 Chelyabinsk, Russia; (P.P.); (S.F.); (D.T.)
| | - David Tseilikman
- Department of Fundamental Medicine, Chelyabinsk State University, 454001 Chelyabinsk, Russia; (P.P.); (S.F.); (D.T.)
| | - Vadim Tseilikman
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia; (M.K.); (E.M.); (H.F.D.); (O.T.); (V.T.)
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