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介质在卵清蛋白致敏的棕色挪威大鼠气道中抗原诱导的支气管痉挛和微血管渗漏中的作用。

Mediator involvement in antigen-induced bronchospasm and microvascular leakage in the airways of ovalbumin sensitized Brown Norway rats.

作者信息

Hele D J, Birrell M A, Webber S E, Foster M L, Belvisi M G

机构信息

Respiratory Pharmacology Group, Department of Cardiothoracic Surgery, Imperial College School of Medicine, National Heart & Lung Institute, Dovehouse Street, Chelsea, London SW3 6LY.

出版信息

Br J Pharmacol. 2001 Jan;132(2):481-8. doi: 10.1038/sj.bjp.0703847.

DOI:10.1038/sj.bjp.0703847
PMID:11159698
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1572587/
Abstract
  1. To determine which mediators are involved in antigen-induced bronchospasm and microvascular leakage in the airways of ovalbumin sensitised Brown Norway rats we investigated the effect of a histamine H(1) receptor antagonist, mepyramine, a 5-HT receptor antagonist, methysergide, and a cys-leukotriene-1 receptor antagonist, montelukast. 2. Ovalbumin at 1 mg kg(-1) i.v. caused a significant increase in microvascular leakage in the airways and at 3 mg kg(-1) i.v. caused a significant increase in airways resistance. 3. Histamine (1 mg kg(-1) i.v.), 5-HT (0.1 mg kg(-1) i.v.) and leukotriene D(4) (LTD(4), 50 microg kg(-1) i.v.) caused a significant increase in microvascular leakage in the airways. 4. Mepyramine (1 mg kg(-1) i.v.), methysergide (0.1 mg kg(-1) i.v.), or montelukast (30 mg kg(-1) i.v.) inhibited histamine, 5-HT or LTD(4) -induced microvascular leakage respectively. 5. Methysergide (0.1 mg kg(-1) i.v.) reduced ovalbumin-induced microvascular leakage in the trachea and at 0.3 mg kg(-1) i.v. inhibited bronchospasm (38 and 58%, respectively). Montelukast (30 mg kg(-1) p.o.) reduced ovalbumin-induced microvascular leakage in airway tissue to basal levels (78%) and inhibited ovalbumin-induced bronchospasm (50%). Mepyramine (3 mg kg(-1) i.v.) had no effect on ovalbumin-induced leakage or bronchospasm. 6. A combination of all three compounds (mepyramine, methysergide and montelukast) reduced ovalbumin-induced microvascular leakage in airway tissue to basal levels (70 - 78%) and almost completely inhibited bronchospasm (92%). 7. Antigen-induced bronchospasm appears to equally involve the activation of 5-HT and cys-leukotriene-1 receptors whereas ovalbumin-induced microvascular leakage appears to be predominantly mediated by cys-leukotriene-1 receptors.
摘要
  1. 为了确定哪些介质参与卵清蛋白致敏的棕色挪威大鼠气道中抗原诱导的支气管痉挛和微血管渗漏,我们研究了组胺H(1)受体拮抗剂美吡拉敏、5-羟色胺(5-HT)受体拮抗剂麦角新碱和半胱氨酰白三烯-1受体拮抗剂孟鲁司特的作用。2. 静脉注射1mg/kg的卵清蛋白可导致气道微血管渗漏显著增加,静脉注射3mg/kg则可导致气道阻力显著增加。3. 组胺(静脉注射1mg/kg)、5-HT(静脉注射0.1mg/kg)和白三烯D4(LTD4,静脉注射50μg/kg)可导致气道微血管渗漏显著增加。4. 美吡拉敏(静脉注射1mg/kg)、麦角新碱(静脉注射0.1mg/kg)或孟鲁司特(静脉注射30mg/kg)分别抑制组胺、5-HT或LTD4诱导的微血管渗漏。5. 麦角新碱(静脉注射0.1mg/kg)可降低卵清蛋白诱导的气管微血管渗漏,静脉注射0.3mg/kg时可抑制支气管痉挛(分别为38%和58%)。孟鲁司特(口服30mg/kg)可将卵清蛋白诱导的气道组织微血管渗漏降至基础水平(78%),并抑制卵清蛋白诱导的支气管痉挛(50%)。美吡拉敏(静脉注射3mg/kg)对卵清蛋白诱导的渗漏或支气管痉挛无影响。6. 三种化合物(美吡拉敏、麦角新碱和孟鲁司特)联合使用可将卵清蛋白诱导的气道组织微血管渗漏降至基础水平(70 - 78%),并几乎完全抑制支气管痉挛(92%)。7. 抗原诱导的支气管痉挛似乎同样涉及5-HT和半胱氨酰白三烯-1受体的激活,而卵清蛋白诱导的微血管渗漏似乎主要由半胱氨酰白三烯-1受体介导。

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