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新型β2选择性肾上腺素能受体兴奋剂克仑特罗对被动致敏豚鼠肺组织匀浆中组胺和慢反应物质A释放的影响

Effect of clenbuterol, a new beta 2 selective adrenoceptor stimulant, on the release of histamine and SRS-A from passively sensitized guinea-pig chopped lungs.

作者信息

Yamazaki N, Hosoki R, Takayanagi I

出版信息

Gen Pharmacol. 1984;15(4):345-8. doi: 10.1016/0306-3623(84)90012-0.

Abstract

Effect of clenbuterol on the release of histamine and SRS-A from passively sensitized guinea-pig lungs was studied in a superfused-cascade bioassay system, and compared with isoproterenol and salbutamol. One-week-old guinea-pig lungs were used, since histamine and SRS-A were released more in these than in 6- or 12-week old lungs during anaphylaxis. Clenbuterol, isoproterenol and salbutamol (10(-8) - 10(-7) M) were found to inhibit the releases of histamine and SRS-A. These actions were inhibited by propranolol. These results suggest that clenbuterol inhibits the releases of histamine and SRS-A via the beta-adrenoceptor.

摘要

在一个灌流级联生物测定系统中研究了克仑特罗对被动致敏豚鼠肺中组胺和慢反应物质A(SRS-A)释放的影响,并与异丙肾上腺素和沙丁胺醇进行了比较。使用一周龄豚鼠的肺,因为在过敏反应期间,这些豚鼠肺中组胺和SRS-A的释放比6周龄或12周龄豚鼠肺中的释放更多。发现克仑特罗、异丙肾上腺素和沙丁胺醇(10^(-8)-10^(-7)M)可抑制组胺和SRS-A的释放。这些作用被普萘洛尔抑制。这些结果表明,克仑特罗通过β-肾上腺素能受体抑制组胺和SRS-A的释放。

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