Journal
JOURNAL OF NUTRITIONAL BIOCHEMISTRY
Volume 11, Issue 11-12, Pages 581-584Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S0955-2863(00)00123-6
Keywords
rheumatoid arthritis; oxidative stress; exercise; aging; 8-OHdG; inflammation
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Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG), as a measure of oxidative stress. was measured before and after 12 weeks of progressive resistance strength training in 8 health elderly (65-80 vr) and eight health?: young (22-30 yr) men and women, and in eight adults (25-65 yr) with rheumatoid arthritis (RA). Training subjects exercised at 80% of their one-repetition maximum and performed eight repetitions per set, three sets per session, on a twice-weekly basis. 8-OHdG Mas measured at baseline and follow-up, (at least 24 hr after the last exercise session) in the RA and elderly subject groups, and at baseline only in young subjects. Baseline 8-OHdG levels were greater among subjects with RA compared to both healthy young (P < 0.001) and elderly (P ( 0.05) subjects. There were no changes in 8-OHdG levels in either R-l or elderly subjects as a result Of the strength training intervention. These results suggest that subjects with RA have higher levels of oxidative stress than young and elderly healthy individuals. Furthermore, there is no change in oxidative stress, measured by urinary 8-OHdG, in elderly healthy individuals or in subjects with RA Lifter a 12-week strength training intervention. (C) Elsevier Science Inc. 2000. All rights reserved.
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