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Effect of inspired air conditions on exercise-induced bronchoconstriction and urinary CC16 levels in athletes

Bolger, C.; Tufvesson, Ellen LU ; Anderson, S. D.; Devereux, G.; Ayres, J. G.; Bjermer, Leif LU ; Sue-Chu, M. and Kippelen, P. (2011) In Journal of Applied Physiology 111(4). p.1059-1065
Abstract
Bolger C, Tufvesson E, Anderson SD, Devereux G, Ayres JG, Bjermer L, Sue-Chu M, Kippelen P. Effect of inspired air conditions on exercise-induced bronchoconstriction and urinary CC16 levels in athletes. J Appl Physiol 111: 1059-1065, 2011. First published July 28, 2011; doi:10.1152/japplphysiol.00113.2011.-Injury to the airway epithelium has been proposed as a key susceptibility factor for exercise-induced bronchoconstriction (EIB). Our goals were to establish whether airway epithelial cell injury occurs during EIB in athletes and whether inhalation of warm humid air inhibits this injury. Twenty-one young male athletes (10 with a history of EIB) performed two 8-min exercise tests near maximal aerobic capacity in cold dry (4 degrees C, 37%... (More)
Bolger C, Tufvesson E, Anderson SD, Devereux G, Ayres JG, Bjermer L, Sue-Chu M, Kippelen P. Effect of inspired air conditions on exercise-induced bronchoconstriction and urinary CC16 levels in athletes. J Appl Physiol 111: 1059-1065, 2011. First published July 28, 2011; doi:10.1152/japplphysiol.00113.2011.-Injury to the airway epithelium has been proposed as a key susceptibility factor for exercise-induced bronchoconstriction (EIB). Our goals were to establish whether airway epithelial cell injury occurs during EIB in athletes and whether inhalation of warm humid air inhibits this injury. Twenty-one young male athletes (10 with a history of EIB) performed two 8-min exercise tests near maximal aerobic capacity in cold dry (4 degrees C, 37% relative humidity) and warm humid (25 degrees C, 94% relative humidity) air on separate days. Postexercise changes in urinary CC16 were used as a biomarker of airway epithelial cell perturbation and injury. Bronchoconstriction occurred in eight athletes in the cold dry environment and was completely blocked by inhalation of warm humid air [maximal fall in forced expiratory volume in 1 s = 18.1 +/- 2.1% (SD) in cold dry air and 1.7 +/- 0.8% in warm humid air, P < 0.01]. Exercise caused an increase in urinary excretion of CC16 in all subjects (P < 0.001), but this rise in CC16 was blunted following inhalation of warm humid air [median CC16 increase pre- to postchallenge = 1.91 and 0.35 ng/mu mol in cold dry and warm humid air, respectively, in athletes with EIB (P = 0.017) and 1.68 and 0.48 ng/mu mol in cold dry and warm humid air, respectively, in athletes without EIB (P = 0.002)]. The results indicate that exercise hyperpnea transiently disrupts the airway epithelium of all athletes (not only in those with EIB) and that inhalation of warm moist air limits airway epithelial cell perturbation and injury. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
asthma, airway epithelial injury, Clara cell
in
Journal of Applied Physiology
volume
111
issue
4
pages
1059 - 1065
publisher
American Physiological Society
external identifiers
  • wos:000295972000015
  • scopus:80054679406
ISSN
1522-1601
DOI
10.1152/japplphysiol.00113.2011
language
English
LU publication?
yes
id
28f169c5-400a-4cc9-9a2c-87f0fdbfcdae (old id 2208252)
date added to LUP
2011-12-01 08:28:56
date last changed
2017-11-19 03:14:36
@article{28f169c5-400a-4cc9-9a2c-87f0fdbfcdae,
  abstract     = {Bolger C, Tufvesson E, Anderson SD, Devereux G, Ayres JG, Bjermer L, Sue-Chu M, Kippelen P. Effect of inspired air conditions on exercise-induced bronchoconstriction and urinary CC16 levels in athletes. J Appl Physiol 111: 1059-1065, 2011. First published July 28, 2011; doi:10.1152/japplphysiol.00113.2011.-Injury to the airway epithelium has been proposed as a key susceptibility factor for exercise-induced bronchoconstriction (EIB). Our goals were to establish whether airway epithelial cell injury occurs during EIB in athletes and whether inhalation of warm humid air inhibits this injury. Twenty-one young male athletes (10 with a history of EIB) performed two 8-min exercise tests near maximal aerobic capacity in cold dry (4 degrees C, 37% relative humidity) and warm humid (25 degrees C, 94% relative humidity) air on separate days. Postexercise changes in urinary CC16 were used as a biomarker of airway epithelial cell perturbation and injury. Bronchoconstriction occurred in eight athletes in the cold dry environment and was completely blocked by inhalation of warm humid air [maximal fall in forced expiratory volume in 1 s = 18.1 +/- 2.1% (SD) in cold dry air and 1.7 +/- 0.8% in warm humid air, P &lt; 0.01]. Exercise caused an increase in urinary excretion of CC16 in all subjects (P &lt; 0.001), but this rise in CC16 was blunted following inhalation of warm humid air [median CC16 increase pre- to postchallenge = 1.91 and 0.35 ng/mu mol in cold dry and warm humid air, respectively, in athletes with EIB (P = 0.017) and 1.68 and 0.48 ng/mu mol in cold dry and warm humid air, respectively, in athletes without EIB (P = 0.002)]. The results indicate that exercise hyperpnea transiently disrupts the airway epithelium of all athletes (not only in those with EIB) and that inhalation of warm moist air limits airway epithelial cell perturbation and injury.},
  author       = {Bolger, C. and Tufvesson, Ellen and Anderson, S. D. and Devereux, G. and Ayres, J. G. and Bjermer, Leif and Sue-Chu, M. and Kippelen, P.},
  issn         = {1522-1601},
  keyword      = {asthma,airway epithelial injury,Clara cell},
  language     = {eng},
  number       = {4},
  pages        = {1059--1065},
  publisher    = {American Physiological Society},
  series       = {Journal of Applied Physiology},
  title        = {Effect of inspired air conditions on exercise-induced bronchoconstriction and urinary CC16 levels in athletes},
  url          = {http://dx.doi.org/10.1152/japplphysiol.00113.2011},
  volume       = {111},
  year         = {2011},
}