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Ultra-Endurance Associated With Moderate Exercise in Rats Induces Cerebellar Oxidative Stress and Impairs Reactive GFAP Isoform Profile.

التفاصيل البيبلوغرافية
العنوان: Ultra-Endurance Associated With Moderate Exercise in Rats Induces Cerebellar Oxidative Stress and Impairs Reactive GFAP Isoform Profile.
المؤلفون: de Souza RF; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil.; Postgraduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil.; Department of Physical Education, Federal University of Sergipe, São Cristovão, Brazil.; Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe, São Cristovão, Brazil., Augusto RL; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil., de Moraes SRA; Laboratory of Neuromuscular Plasticity, Department of Anatomy, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil., de Souza FB; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil., Gonçalves LVDP; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil., Pereira DD; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil., Moreno GMM; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil., de Souza FMA; Laboratory of Neuropharmacology and Integrative Physiology, Center of Biosciences, Federal University of Alagoas, Maceió, Brazil., Andrade-da-Costa BLDS; Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil.; Postgraduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil.
المصدر: Frontiers in molecular neuroscience [Front Mol Neurosci] 2020 Sep 02; Vol. 13, pp. 157. Date of Electronic Publication: 2020 Sep 02 (Print Publication: 2020).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Frontiers Research Foundation Country of Publication: Switzerland NLM ID: 101477914 Publication Model: eCollection Cited Medium: Print ISSN: 1662-5099 (Print) Linking ISSN: 16625099 NLM ISO Abbreviation: Front Mol Neurosci Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Lausanne, Switzerland : Frontiers Research Foundation, 2008-
مستخلص: Ultra-endurance (UE) race has been associated with brain metabolic changes, but it is still unknown which regions are vulnerable. This study investigated whether high-volume training in rodents, even under moderate intensity, can induce cerebellar oxidative and inflammatory status. Forty-five adult rats were divided into six groups according to a training period, followed or not by an exhaustion test (ET) that simulated UE: control (C), control + ET (C-ET), moderate-volume (MV) training and MV-ET, high-volume training (HV) and HV-ET. The training period was 30 (MV) and 90 (HV) min/day, 5 times/week for 3 months as a continuous running on a treadmill at a maximum velocity of 12 m/min. After 24 h, the ET was performed at 50% maximum velocities up to the animals refused to run, and then serum lactate levels were evaluated. Serum and cerebellar homogenates were obtained 24 h after ET. Serum creatine kinase (CK), lactate dehydrogenase (LDH), and corticosterone levels were assessed. Lipid peroxidation (LP), nitric oxide (NO), Interleukin 1β (IL-1β), and GFAP proteins, reduced and oxidized glutathione (GSH and GSSG) levels, superoxide dismutase (SOD) and catalase (CAT) activities were quantified in the cerebellum. Serum lactate concentrations were lower in MV-ET (∼20%) and HV-ET (∼40%) compared to the C-ET group. CK and corticosterone levels were increased more than ∼ twofold by HV training compared to control. ET increased CK levels in MV-ET vs. MV group ( P = 0.026). HV induced higher LP levels (∼40%), but an additive effect of ET was only seen in the MV-ET group ( P = 0.02). SOD activity was higher in all trained groups vs. C and C-ET ( P < 0.05). CAT activity, however, was intensified only in the MV group ( P < 0.02). The 50 kDa GFAP levels were enhanced in C-ET and MV-ET vs. respective controls, while 42 kDa (∼40%) and 39 kDa (∼26%) isoform levels were reduced. In the HV-ET group, the 50 KDa isoform amount was reduced ∼40-60% compared to the other groups and the 39 KDa isoform, increased sevenfold. LDH levels, GSH/GSSG ratio, and NO production were not modified. ET elevated IL-1β levels in the CT and MV groups. Data shows that cerebellar resilience to oxidative damage may be maintained under moderate-volume training, but it is reduced by UE running. High-volume training per se provoked systemic metabolic changes, cerebellar lipid peroxidation, and unbalanced enzymatic antioxidant resource. UE after high-volume training modified the GFAP isoform profile suggesting impaired astrocyte reactivity in the cerebellum.
(Copyright © 2020 de Souza, Augusto, de Moraes, de Souza, Gonçalves, Pereira, Moreno, de Souza and Andrade-da-Costa.)
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فهرسة مساهمة: Keywords: catalase; central nervous system; glial fibrillary acidic protein; high-volume training; lipid peroxidation; oxidative stress; superoxide dismutase
تواريخ الأحداث: Date Created: 20200928 Latest Revision: 20231112
رمز التحديث: 20231112
مُعرف محوري في PubMed: PMC7492828
DOI: 10.3389/fnmol.2020.00157
PMID: 32982688
قاعدة البيانات: MEDLINE
الوصف
تدمد:1662-5099
DOI:10.3389/fnmol.2020.00157