Document Detail

Differential impact of acute bout of exercise on redox- and oxidative damage-related profiles between untrained subjects and amateur runners.
MedLine Citation:
PMID:  20533869     Owner:  NLM     Status:  In-Data-Review    
Despite the demonstrated exercise-induced increase in reactive oxygen species (ROS) production, growing epidemiological evidence indicates that habitual, moderate physical activity reduces the incidence of several oxidative stress-based diseases. This apparent paradox can be explained taking into account that ROS produced during repeated exercise bouts may act as mild stressors able to trigger physiological and biomolecular hormetic responses through a number of redox-sensitive transcription pathways. Unfortunately, much more limited information is available from general population-based research, which could better reflect the condition of common people interested in achieving and maintaining good fitness levels. The present work aimed at investigating whether and how exercise-related habits in non-professional regular runners (n=33) can affect the systemic anti-oxidative capacity, and the resting serum levels of typical lipid peroxidation-related by-products and oxidatively-damaged proteins, in comparison with untrained sedentary individuals (n=25). We also analyzed in both groups the redox response elicited by a modified Bruce-based maximal exercise test on the same parameters. Our findings indicated that long-term regular and moderate practice of aerobic physical activity can increase antioxidant defense systems, lower the resting protein oxidation processes and reduce the immediate up-regulation of lipid-targeting oxidative stress in response to an acute bout of exercise.
S Falone; A Mirabilio; A Pennelli; M Cacchio; A Di Baldassarre; S Gallina; A Passerini; F Amicarelli
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Publication Detail:
Type:  Journal Article     Date:  2010-06-09
Journal Detail:
Title:  Physiological research / Academia Scientiarum Bohemoslovaca     Volume:  59     ISSN:  0862-8408     ISO Abbreviation:  Physiol Res     Publication Date:  2010  
Date Detail:
Created Date:  2011-01-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9112413     Medline TA:  Physiol Res     Country:  Czech Republic    
Other Details:
Languages:  eng     Pagination:  953-61     Citation Subset:  IM    
Department of Basic and Applied Biology, University of L'Aquila, L'Aquila, Italy.
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