Document Detail


Plasma antioxidant responses and oxidative stress following a soccer game in elite female players.
MedLine Citation:
PMID:  19706000     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We aimed to investigate markers of oxidative stress and levels of endogenous and dietary antioxidants in 16 elite female soccer players in response to a 90-min game (average intensity 82+/-3% HRpeak). Blood samples were taken before, immediately and 21 h after the game. Plasma-oxidized glutathione, the ratio of reduced to oxidized glutathione (GSH:GSSG) and lipid peroxidation measured by d-ROMs were used as markers of oxidative stress. Plasma endogenous [uric acid, total glutathione (TGSH)] and dietary antioxidants (alpha-tocopherol, ascorbic acid, total carotenoids and polyphenols) were analyzed using liquid chromatography and the Folin-Ciocalteu method. Exercise induced an acute increase (P<0.05) in GSSG, uric acid, TGSH, alpha-tocopherol, and ascorbic acid. In parallel, the GSH:GSSG ratio and polyphenols decreased (P<0.05). GSSG, GSH:GSSG ratio, uric acid, TGSH, and ascorbic acid returned to baseline at 21 h, while polyphenols and alpha-tocopherol remained altered. Total carotenoids increased above baseline only at 21 h (P<0.05). Lipid peroxidation, measured by d-ROMs, remained unchanged throughout the study. Thus, intermittent exercise in well-trained female athletes induces a transient increase in GSSG and a decrease in the GSH:GSSG ratio, which is effectively balanced by the recruitment of both endogenous and dietary antioxidants, resulting in the absence of lipid peroxidation measured by d-ROMs.
Authors:
H Andersson; A Karlsen; R Blomhoff; T Raastad; F Kadi
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-23
Journal Detail:
Title:  Scandinavian journal of medicine & science in sports     Volume:  20     ISSN:  1600-0838     ISO Abbreviation:  Scand J Med Sci Sports     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-26     Completed Date:  2010-11-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111504     Medline TA:  Scand J Med Sci Sports     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  600-8     Citation Subset:  IM    
Affiliation:
School of Health and Medical Sciences, Orebro University, Orebro, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Antioxidants / analysis*,  metabolism*
Athletes*
Female
Humans
Norway
Oxidative Stress / drug effects*,  physiology
Plasma*
Soccer / physiology*
Sweden
Chemical
Reg. No./Substance:
0/Antioxidants

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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