Severo 2020 Life Sci

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Publications in the MiPMap
Severo L, Godinho D, Machado F, Hartmann D, Fighera MR, Soares FA, Furian AF, Oliveira MS, Royes LF (2020) The role of mitochondrial bioenergetics and oxidative stress in depressive behavior in recurrent concussion model in mice. Life Sci 257:117991.

» PMID: 32569782

Severo Leandro, Godinho Douglas, Machado Felipe, Hartmann Diane, Fighera Michele Rechia, Soares Felix Alexandre, Furian Ana Flavia, Oliveira Mauro Schneider, Royes Luiz Fernando (2020) Life Sci

Abstract: Traumatic brain injury (TBI) is a public health problem in which even though 80 to 90% of cases are considered mild, usually starts a sequence of neurological disorders that can last a considerable time. Most of the research of this injury has been focused on oxidative stress and functional deficits; however, mechanisms that underlie the development of neuropsychiatric disorders remain little researched. Due to this, the present authors decided to investigate whether recurrent concussion protocols alter depressive-like phenotype behavior, and whether mitochondria play an indispensable role in this behavior or not. The experimental data revealed, for the first time, that the present protocol of recurrent concussions (4, 7, and 10 injuries) in mice did not alter immobility time during tail suspension tests (TSTs), but decreased hippocampal mitochondrial respiration and increased expression of proteins such as nuclear factor erythroid 2-related factor 2 (Nrf2) and superoxide (SOD2). This experimental data suggests that bioenergetic changes elicited by recurrent concussion did not induce depressive-like behavior, but activated the transcription factor of responsive antioxidant elements (ARE) that delay or prevent secondary cascades in this neurological disease.

Keywords: Hippocampus, Depression, Mitochondrial bioenergetics, Recurrent concussion Bioblast editor: Plangger M

Labels: MiParea: Respiration  Pathology: Other 

Organism: Mouse  Tissue;cell: Nervous system  Preparation: Homogenate 

Coupling state: LEAK, OXPHOS, ET  Pathway: N, S, NS, ROX  HRR: Oxygraph-2k