Immunological changes after both exercise and activity in chronic fatigue syndrome: a pilot study

White, P.D., Nye, K.E., Pinching, A.J., Yap, T.M., Power, N., Vleck, V.E., Bentley, D.J., Thomas, J.M., Buckland, M. and Parkin, J.M. 2004. Immunological changes after both exercise and activity in chronic fatigue syndrome: a pilot study. Journal of Chronic Fatigue Syndrome. 12 (2), pp. 51-66. https://doi.org/10.1300/J092v12n02_06

TitleImmunological changes after both exercise and activity in chronic fatigue syndrome: a pilot study
AuthorsWhite, P.D., Nye, K.E., Pinching, A.J., Yap, T.M., Power, N., Vleck, V.E., Bentley, D.J., Thomas, J.M., Buckland, M. and Parkin, J.M.
Abstract

Background: The chronic fatigue syndrome (CFS) is characterized by post-exertional malaise and fatigue. We designed this pilot study to explore whether the illness was associated with alterations in immunological markers following exercise. Methods: We measured immunological markers before and up to three days after either a sub-maximal or maximal bicycle exercise test.We studied nine patients with CFS and nine ageand sex-matched healthy but sedentary controls. We also studied the same patients with CFS at home after a night's sleep and then after traveling to the study center. Results: There were no significant differences in any of the cell markers after a sub-maximal exercise test compared to a maximal test. However, we found elevated concentrations of plasma transforming growth factor β (TGF-ß), even before exercise, in subjects with CFS (median (IQR) of 904 (182-1072) pg/ml) versus controls (median (IQR) of 50 (45-68) pg/ml) (P < .001). Traveling from home to the hospital significantly elevated TGF-ß concentrations from a resting median (IQR) concentration of 1161 (130-1246) pg/ml to a median (IQR) concentration of 1364 (1155-1768) pg/ml (P < .02). There was also a sustained increase in plasma tumor necrosis factor α (TNF-α) after exercise in CFS patients, but not in controls (P = .004 for the area under the curve), although traveling had no such effect. CD3, CD4 and HLA DR-expressing lymphocyte counts were lower in CFS patients, but exercise had the same effect in both groups, causing an immediate increase in circulating cell numbers that lasted less than three hours. Conclusions: These results suggest that the relationship between physical activity and both pro-inflammatory and anti-inflammatory cytokines merits further investigation in patients with CFS. The results also emphasize the importance of defining a truly resting baseline condition in such studies.

JournalJournal of Chronic Fatigue Syndrome
Journal citation12 (2), pp. 51-66
ISSN1057-3321
Year2004
Digital Object Identifier (DOI)https://doi.org/10.1300/J092v12n02_06
Publication dates
Published2004

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