Importance of airway inflammation for hyperresponsiveness induced by ozone.
Importance of airway inflammation for hyperresponsiveness induced by ozone.
复制标题
气道炎症对于臭氧引起的高反应性的重要性。
DOI:
10.1164/arrd.1983.127.6.686
复制
发表时间:
1983
期刊:
影响因子:
--
通讯作者:
Nadel,JA
中科院分区:
文献类型:
--
作者:
Holtzman,MJ;Fabbri,LM;O'Byrne,PM;Gold,BD;Aizawa,H;Walters,EH;Alpert,SE;Nadel,JA
We studied whether ozone-induced airway hyperresponsiveness correlates with the development of airway inflammation in dogs. To assess airway responsiveness, we determined increases in pulmonary resistance produced by delivering acetylcholine aerosol to the airways. To assess airway inflammation, we biopsied the airway mucosa and counted the number of neutrophils present in the epithelium. Airway responsiveness and inflammation were assessed in anesthetized dogs before ozone exposure and then 1 h and 1 wk after ozone (2.1 ppm, 2 h). Airway responsiveness increased markedly at 1 h after ozone and returned to control levels 1 wk later in each of 6 dogs, but it did not change after ozone in another 4 dogs. Furthermore, dogs that became hyperresponsive also developed a marked and reversible increase in the number of neutrophils in the epithelium, whereas dogs that did not become hyperresponsive had no change in the number of neutrophils. For the group of dogs, the level of airway responsiveness before and after ozone exposure correlated closely with the number of epithelial neutrophils. The results suggest that ozone-induced airway hyperresponsiveness may depend on the development of an acute inflammatory response in the airways.
登录
查看更多内容
影响因子:
22.4
作者:
S. Hauser
通讯作者:
S. Hauser
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
R. Schafer
通讯作者:
R. Schafer
影响因子:
4.6
作者:
SAARNI, C
通讯作者:
SAARNI, C
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
S. Harter;Bonnie Johns Buddin
通讯作者:
Bonnie Johns Buddin
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
E. Lester
通讯作者:
E. Lester