PMID- 18021756 OWN - NLM STAT- MEDLINE DCOM- 20080602 LR - 20071224 IS - 0006-8993 (Print) IS - 0006-8993 (Linking) VI - 1188 DP - 2008 Jan 10 TI - Effect of a neuroprotective exercise protocol on oxidative state and BDNF levels in the rat hippocampus. PG - 182-8 AB - Daily moderate intensity exercise (2 weeks of 20 min/day of treadmill training), which reduces damage to hippocampal slices from rats submitted to in vitro ischemia, did not modify oxidative stress parameters in the hippocampus nor the brain-derived neurotrophic factor (BDNF) levels in different brain regions. The aim was to investigate whether the modulation of hippocampal oxidative status and/or brain BDNF content is involved in exercise-induced neuroprotection. Wistar rats were submitted to daily exercise in the treadmill and were sacrificed approximately 16 h after the last treadmill running. Some several oxidative stress parameters were determined, specifically the free radical levels, the macromolecule damage, the total reactive antioxidant potential and reactivity levels, which represent the total antioxidant capacity, in the hippocampus. In addition, BDNF levels in different rat cerebral regions (hippocampus, cortex, striatum, and the cerebellum) were measured by ELISA. The used exercise protocol did not affect any oxidative stress parameters studied in the hippocampus, suggesting that it does not cause a significant oxidative stress nor induce adaptations of the cellular antioxidant system. Treadmill training also did not change the BDNF content in brain areas studied. Considering the fact that this exercise protocol have been shown to be neuroprotective, we might speculate that BDNF levels and oxidative status may not be directly involved with the mechanisms of exercise-induced neuroprotection after ischemia. FAU - Cechetti, Fernanda AU - Cechetti F AD - Programa de Pos Graduacao em Ciencias Biologicas-Neurociencias, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, Porto Alegre, RS, Brazil. FAU - Fochesatto, Cintia AU - Fochesatto C FAU - Scopel, Denise AU - Scopel D FAU - Nardin, Patricia AU - Nardin P FAU - Goncalves, Carlos Alberto AU - Goncalves CA FAU - Netto, Carlos Alexandre AU - Netto CA FAU - Siqueira, Ionara Rodrigues AU - Siqueira IR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071017 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Antioxidants) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Free Radicals) SB - IM MH - Animals MH - Antioxidants/metabolism MH - Brain/anatomy & histology/metabolism MH - Brain Ischemia/*metabolism/physiopathology/*therapy MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cytoprotection/physiology MH - Exercise Test MH - Exercise Therapy/methods MH - Free Radicals/metabolism MH - Hippocampus/blood supply/*metabolism/physiopathology MH - Male MH - Organ Culture Techniques MH - Oxidation-Reduction MH - Oxidative Stress/*physiology MH - Oxygen Consumption MH - Physical Conditioning, Animal/*physiology MH - Rats MH - Rats, Wistar MH - Treatment Outcome EDAT- 2007/11/21 09:00 MHDA- 2008/06/03 09:00 CRDT- 2007/11/21 09:00 PHST- 2007/06/21 00:00 [received] PHST- 2007/10/09 00:00 [revised] PHST- 2007/10/10 00:00 [accepted] PHST- 2007/11/21 09:00 [pubmed] PHST- 2008/06/03 09:00 [medline] PHST- 2007/11/21 09:00 [entrez] AID - S0006-8993(07)02460-2 [pii] AID - 10.1016/j.brainres.2007.10.012 [doi] PST - ppublish SO - Brain Res. 2008 Jan 10;1188:182-8. doi: 10.1016/j.brainres.2007.10.012. Epub 2007 Oct 17.