@Article{Moreira2013,
journal="Biology of Sport",
issn="0860-021X",
volume="30",
number="4",
year="2013",
title="Original paperSALIVARY IL-21 AND IGA RESPONSES TO A COMPETITIVE MATCH IN ELITE BASKETBALL PLAYERS",
abstract="Athletes engaged in strenuous training might experience transient immune suppression that could lead to greater incidence of upper respiratory tract infections (URTI). Since interleukin 21 (IL-21) stimulates immunoglobulin A (IgA) secreting cells and a low level of this immunoglobulin is associated with increased incidence of URTI, the aim of the present study was to investigate the effect of a basketball match on salivary cortisol (sC), salivary IL-21 (sIL-21) and salivary IgA (sIgA) levels. Twenty male basketball players participated in an official game in two teams (10 players in each team). The saliva samples were collected before the warm-up and approximately 10-15 min after the end of the match and were analysed by ELISA methods. sC concentration increased significantly after the match while sIL-21 level was reduced (p < 0.05). In opposition to the study’s hypothesis, sIgA level did not change in response to the match. The present findings suggest that a basketball match is sufficiently stressful to elevate sC concentration and attenuates the sIL-21 output without compromising the sIgA level. It is reasonable to speculate that the stability of sIgA acute responses to the match, despite the decrement in sIL-21, indicates that other mechanisms rather than IL-21 stimulating B cell proliferation/differentiation might modulate IgA concentration and secretion rate.",
author="Moreira, A.
and Bacurau, R.F.P.
and Napimoga, M.H.
and Arruda, A.F.S.
and Freitas, C.G.
and Drago, G.
and Aoki, M.S.",
pages="243--247",
url="https://www.termedia.pl/Original-paper-SALIVARY-IL-21-AND-IGA-RESPONSES-TO-A-COMPETITIVE-MATCH-IN-ELITE-BASKETBALL-PLAYERS,78,23354,1,1.html"
}