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- Title
Effects of psycho–physical stress (competitive rafting) on saliva interleukin-1 beta.
- Authors
Ilardo, Claudio; Toniolo, Anne-Marie; Aimone-Gastin, Isabelle; Abdelmouttaleb, Idrissia; Guéant, Jean-Louis; Desor, Didier
- Abstract
The effects of psycho-physical stress on immune function were evaluated by investigating the secretion rate of salivary interleukin-1 beta (IL-1β) during competitive rafting. Ten female and 20 male volunteers participated in this study. The concentration of IL-1 β was determined in saliva using ELISA. We examined the statistical differences between T2/T1 (the changes observed during the training period) and C2/C1 (the changes before and after the competitive rafting) ratios by a Wilcoxon signed rank test. The ratio of IL-1 β was significantly increased during competitive rafting (C 2&sol ;C 1 = 3.6; p < 0.01), compared to the control ratio (T 2&sol ;T 1 = 0.95; p < 0.01). The level of IL-1 β at 8.00 a.m. decreased significantly between the first (11.9 ± 8.71 pmol/l) and the third day (7.9 ± 5.52 pmol/l) in all subjects (p < 0.01). In addition, the basal IL-1 β levels significantly decreased between the beginning (8.00 a.m.) and the end of the day (6.00 p.m.), during the three consecutive days of collection (p < 0.01). These results may correspond to a circadian secretion rhythm of human saliva IL-1 β. In conclusion, a disturbance of IL-1 β salivary secretion is observed either after psycho-physical stress or during intensive training. It may potentially affect the immune and endocrine status. Copyright © 2001 John Wiley & Sons, Ltd.
- Subjects
PSYCHOPHYSIOLOGY; PSYCHOLOGICAL stress; PHYSIOLOGICAL stress; RAFTING (Sports); INTERLEUKIN-1; CIRCADIAN rhythms
- Publication
Stress & Health: Journal of the International Society for the Investigation of Stress, 2001, Vol 17, Issue 1, p9
- ISSN
1532-3005
- Publication type
Article
- DOI
10.1002/1532-2998(200101)17:1<9::AID-SMI871>3.0.CO;2-Y