Previous physical exercise alters the hepatic profile of oxidative-inflammatory status and limits the secondary brain damage induced by severe traumatic brain injury in rats

被引:24
|
作者
Torres de Castro, Mauro Robson [1 ,2 ]
de Oliveira Ferreira, Ana Paula [3 ]
Busanello, Guilherme Lago [1 ,2 ]
Hart da Silva, Luis Roberto [1 ]
Porto da Silveira Junior, Mauro Eduardo [4 ]
Fiorin, Fernando da Silva [4 ]
Arrifano, Gabriela [5 ]
Crespo-Lopez, Maria Elena [5 ]
Barcelos, Romulo Pillon [4 ]
Cuevas, Maria J. [6 ,7 ]
Bresciani, Guilherme [8 ]
Gonzalez-Gallego, Javier [6 ,7 ]
Fighera, Michele Rechia [1 ,2 ,4 ]
Freire Royes, Luiz Fernando [1 ,2 ,4 ]
机构
[1] Univ Fed Santa Maria, Programa Posgrad Educ Fis, Santa Maria, RS, Brazil
[2] Univ Fed Santa Maria, Ctr Educ Fis & Desportos, Lab Bioquim Exercicio, Santa Maria, RS, Brazil
[3] Univ Fed Santa Maria, Programa Posgrad Farmacol, Santa Maria, RS, Brazil
[4] Univ Fed Santa Maria, Programa Posgrad Ciencias Biol Bioquim Toxicol, Santa Maria, RS, Brazil
[5] UFPA, Lab Farmacol Mol, ICB, Belem, Para, Brazil
[6] Univ Leon, Inst Biomed IBIOMED, Leon, Spain
[7] Univ Leon, CIBERehd, Leon, Spain
[8] PUCV, Escuela Educ Fis, Valparaiso, Chile
来源
JOURNAL OF PHYSIOLOGY-LONDON | 2017年 / 595卷 / 17期
关键词
CONTROLLED CORTICAL IMPACT; INSULIN-RESISTANCE; LIPID-PEROXIDATION; POSTTRAUMATIC EPILEPSY; NA+; K+-ATPASE ACTIVITY; SYSTEMIC RESPONSE; FLUID PERCUSSION; INDUCED SEIZURES; SKELETAL-MUSCLE; HEAD TRAUMA;
D O I
10.1113/JP273933
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Although systemic responses have been described after traumatic brain injury (TBI), little is known regarding potential interactions between brain and peripheral organs after neuronal injury. Accordingly, we aimed to investigate whether a peripheral oxidative/inflammatory response contributes to neuronal dysfunction after TBI, as well as the prophylactic role of exercise training. Animals were submitted to fluid percussion injury after 6 weeks of swimming training. Previous exercise training increased mRNA expression of X receptor alpha and ATP-binding cassette transporter, and decreased inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor (TNF)-alpha and interleukin (IL)-6 expression per se in liver. Interestingly, exercise training protected against hepatic inflammation (COX-2, iNOS, TNF-alpha and IL-6), oxidative stress (decreases in non-protein sulfhydryl and glutathione, as well as increases in 2',7'-dichlorofluorescein diacetate oxidation and protein carbonyl), which altered hepatic redox status (increases in myeloperoxidase and superoxide dismutase activity, as well as inhibition of catalase activity) mitochondrial function (decreases in methyl-tetrazolium and Delta psi, as well as inhibition of citrate synthase activity) and ion gradient homeostasis (inhibition of Na+, K+-ATPase activity inhibition) when analysed 24 h after TBI. Previous exercise training also protected against dysglycaemia, impaired hepatic signalling (increase in phosphorylated c-Jun NH2-terminal kinase, phosphorylated decreases in insulin receptor substrate and phosphorylated AKTexpression), high levels of circulating and neuronal cytokines, the opening of the blood-brain barrier, neutrophil infiltration and Na+, K+-ATPase activity inhibition in the ipsilateral cortex after TBI. Moreover, the impairment of protein function, neurobehavioural (neuromotor dysfunction and spatial learning) disability and hippocampal cell damage in sedentary rats suggests that exercise training also modulates peripheral oxidative/inflammatory pathways in TBI, which corroborates the ever increasing evidence regarding health-related outcomes with respect to a physically active lifestyle.
引用
收藏
页码:6023 / 6044
页数:22
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