NDLI: Changes in salivary antimicrobial peptides, immunoglobulin A and cortisol after prolonged strenuous exercise

Content Provider	Springer Nature Link
Author	Usui, Tatsuya Yoshikawa, Takahiro Orita, Keisuke Ueda, Shin ya Katsura, Yoshihiro Fujimoto, Shigeo Yoshimura, Mamiko
Copyright Year	2011
Abstract	The aim of the present study was to examine whether amount of oral antimicrobial components, human β-defensin-2 (HBD-2), cathelicidin (LL-37), and immunoglobulin A (IgA), might be affected by prolonged strenuous exercise. Ten young male volunteers either exercised on recumbent ergometer at 75% $$ \dot{V}{\text{O}}_{{2\max }} $$ for 60 min (exercise session) or sat quietly (resting session). Saliva samples were obtained at 60-min intervals during sessions for measurements of saliva antimicrobial components (HBD-2, LL-37, and IgA), saliva cortisol and osmolality. Saliva flow rate was decreased and saliva osmolality was increased during the 60-min exercise. Saliva HBD-2 and LL-37 concentrations and secretion rates were increased during and after the exercise, whereas saliva IgA concentration and secretion rates were decreased after the exercise. Saliva cortisol was increased during and after the exercise. The areas under the curve of the time courses of saliva levels of HBD-2 and LL-37 were negatively correlated with those of cortisol levels in saliva. The present findings suggested that a single bout of prolonged strenuous exercise caused a transient increase in the oral HBD-2 and LL-37 levels.
Starting Page	2005
Ending Page	2014
Page Count	10
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	111
Issue Number	9
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-01-20
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antimicrobial peptides Human β-defensin-2 LL-37 Cortisol Physical stress Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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