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Cassol G, Cipolat RP, Papalia WL, Godinho DB, Quines CB, Nogueira CW, Da Veiga M, Da Rocha MIUM, Furian AF, Oliveira MS, Fighera MR, Royes LFF. A role of Na+, K+ -ATPase in spatial memory deficits and inflammatory/oxidative stress after recurrent concussion in adolescent rats. Brain Res Bull 2021; 180:1-11. [PMID: 34954227 DOI: 10.1016/j.brainresbull.2021.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/26/2021] [Revised: 12/02/2021] [Accepted: 12/20/2021] [Indexed: 11/28/2022]
Abstract
Sports-related concussions are particularly common during adolescence, and there is insufficient knowledge about how recurrent concussions in this phase of life alter the metabolism of essential structures for memory in adulthood. In this sense, our experimental data revealed that seven recurrent concussions (RC) in 35-day-old rats decreased short-term and long-term memory in the object recognition test (ORT) 30 days after injury. The RC protocol did not alter motor and anxious behavior and the immunoreactivity of brain-derived neurotrophic factor (BDNF) in the cerebral cortex. Recurrent concussions induced the inflammatory/oxidative stress characterized here by increased glial fibrillary acidic protein (GFAP), interleukin 1β (IL 1β), 4-hydroxynonenal (4 HNE), protein carbonyl immunoreactivity, and 2',7'-dichlorofluorescein diacetate oxidation (DCFH) levels and lower total antioxidant capacity (TAC). Inhibited Na+,K+-ATPase activity (specifically isoform α2/3) followed by Km (Michaelis-Menten constant) for increased ATP levels and decreased immunodetection of alpha subunit of this enzyme, suggesting that cognitive impairment after RC is caused by the inability of surviving neurons to maintain ionic gradients in selected targets to inflammatory/oxidative damage, such as Na,K-ATPase activity.
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Affiliation(s)
- G Cassol
- Exercise Biochemistry Laboratory, Center of Physical Education and Sports, Brazil; Postgraduate Program in Physical Education, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - R P Cipolat
- Exercise Biochemistry Laboratory, Center of Physical Education and Sports, Brazil; Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - W L Papalia
- Exercise Biochemistry Laboratory, Center of Physical Education and Sports, Brazil; Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - D B Godinho
- Exercise Biochemistry Laboratory, Center of Physical Education and Sports, Brazil; Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - C B Quines
- Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - C W Nogueira
- Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - M Da Veiga
- Department of Morphology, Health Sciences Center, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - M I U M Da Rocha
- Department of Morphology, Health Sciences Center, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - A F Furian
- Laboratory of Neurotoxicity and Psychopharmacology, Health Sciences Center, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - M S Oliveira
- Laboratory of Neurotoxicity and Psychopharmacology, Health Sciences Center, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - M R Fighera
- Exercise Biochemistry Laboratory, Center of Physical Education and Sports, Brazil; Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Department of Internal Medicine and Pediatrics, Health Sciences Center, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - L F F Royes
- Exercise Biochemistry Laboratory, Center of Physical Education and Sports, Brazil; Postgraduate Program in Physical Education, Brazil; Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Brazil; Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil.
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