Vagal afferents contribute to exacerbated airway responses following ozone and allergen challenge.
Vagal afferents contribute to exacerbated airway responses following ozone and allergen challenge.
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DOI:
10.1016/j.resp.2012.04.003
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发表时间:
2012-05-31
影响因子:
2.3
通讯作者:
Walby, William F.
中科院分区:
文献类型:
--
作者:
Schelegle, Edward S.;Walby, William F.
Brown-Norway rats (n = 113) sensitized and challenged with nDer f 1 allergen were used to examine the contribution of lung sensory nerves to ozone (O3) exacerbation of asthma. Prior to their third challenge rats inhaled 1.0 ppm O3 for 8 hours. There were three groups: 1) control; 2) vagus perineural capsaicin treatment (PCT) with or without hexamethonium; and 3) vagotomy. O3 inhalation resulted in a significant increase in lung resistance (RL) and an exaggerated response to subsequent allergen challenge. PCT abolished the O3-induced increase in RL and significantly reduced the increase in RL induced by a subsequent allergen challenge, while hexamethonium treatment reestablished bronchoconstriction induced by allergen challenge. Vagotomy resulted in a significant increase in the bronchoconstriction induced by O3 inhalation and subsequent challenge with allergen. In this model of O3 exacerbation of asthma, vagal C-fibers initiate reflex bronchoconstriction, vagal myelinated fibers initiate reflex bronchodilation, and mediators released within the airway initiate bronchoconstriction.
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DOI:
10.1111/j.1748-1716.1990.tb08811.x
发表时间:
1990-01-01
期刊:
ACTA PHYSIOLOGICA SCANDINAVICA
影响因子:
--
作者:
ALVING, K;MATRAN, R;LUNDBERG, JM
通讯作者:
LUNDBERG, JM
DOI:
10.1164/ajrccm.154.5.8912735
发表时间:
1996-11-01
影响因子:
24.7
作者:
Ichinose, M;Miura, M;Shirato, K
通讯作者:
Shirato, K
DOI:
10.1152/ajplung.1998.274.1.l171
发表时间:
1998-01-01
影响因子:
4.9
作者:
Ishii, Y;Shirato, M;Hasegawa, S
通讯作者:
Hasegawa, S
影响因子:
3.3
作者:
COLERIDGE, JCG;COLERIDGE, HM;GREEN, JF
通讯作者:
GREEN, JF
DOI:
10.1164/ajrccm/142.4.822
发表时间:
1990-10-01
期刊:
AMERICAN REVIEW OF RESPIRATORY DISEASE
影响因子:
--
作者:
PELLEGRINO, R;VIOLANTE, B;BRUSASCO, V
通讯作者:
BRUSASCO, V