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Salivary levels of immunoglobulin A in triathletes.
- Source :
-
European journal of oral sciences [Eur J Oral Sci] 1997 Aug; Vol. 105 (4), pp. 305-9. - Publication Year :
- 1997
-
Abstract
- We investigated whether the physical exercise of an olympic distance triathlon affected the salivary IgA excretion of triathletes, as a biomarker for mucosal immune defence. 42 triathletes participated in the study. It was found that the salivary flow rate was decreased significantly after the race, thereby resulting in a significant reduction of the total salivary IgA output. The salivary IgA concentration (mg IgA/ml) did not differ, but expressed as total salivary protein, a significant reduction was observed. This was on the account of the salivary protein concentration (mg protein/ml), which was significantly increased. In contrast to the IgA secretion, the salivary amylase activity was increased significantly after the race. Therefore, our data suggest that the exercise of a triathlon may decrease the level of IgA-mediated immune protection at the mucosal surface. As triathletes may during the race be exposed to micro-organisms present in the swimming water, a decreased IgA-mediated immunity during the race may pose triathletes at an increased risk of infections.
- Subjects :
- Adult
Albumins analysis
Amylases analysis
Bacterial Infections
Biomarkers analysis
Female
Humans
Male
Mouth Mucosa immunology
Risk Factors
Saliva enzymology
Saliva metabolism
Salivary Proteins and Peptides analysis
Secretory Rate
Water Microbiology
Bicycling physiology
Immunoglobulin A, Secretory analysis
Running physiology
Saliva immunology
Swimming physiology
Subjects
Details
- Language :
- English
- ISSN :
- 0909-8836
- Volume :
- 105
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- European journal of oral sciences
- Publication Type :
- Academic Journal
- Accession number :
- 9298361
- Full Text :
- https://doi.org/10.1111/j.1600-0722.1997.tb00245.x