口服白三烯D4拮抗剂RG 12525对轻度哮喘患者气道对吸入白三烯D4反应的影响。
Effect of RG 12525, an oral leukotriene D4 antagonist, on the airway response to inhaled leukotriene D4 in subjects with mild asthma.
作者信息
Wahedna I, Wisniewski A S, Tattersfield A E
机构信息
Respiratory Medicine Unit, City Hospital, Nottingham.
出版信息
Br J Clin Pharmacol. 1991 Oct;32(4):512-5. doi: 10.1111/j.1365-2125.1991.tb03941.x.
Abstract
We have studied the effect of RG 12525, an oral leukotriene D4 (LTD4) antagonist, on LTD4-induced bronchoconstriction in eight male subjects with mild asthma (baseline FEV1 greater than 80% predicted) in a double-blind, placebo-controlled fashion. RG 12525 800 mg displaced the dose-response curve for LTD4 to the right. The mean (95% confidence intervals) difference in log PC20FEV1 following RG 12525 and placebo was 2.88 (1.61, 4.17) doubling doses of LTD4 (P less than 0.01), a 7.5 fold difference. We conclude that RG 12525 when administered orally is an effective LTD4 antagonist in subjects with mild asthma.
摘要
我们采用双盲、安慰剂对照的方式，研究了口服白三烯D4（LTD4）拮抗剂RG 12525对8名轻度哮喘男性受试者（基线第一秒用力呼气容积[FEV1]大于预测值的80%）中LTD4诱导的支气管收缩的影响。800毫克的RG 12525使LTD4的剂量反应曲线右移。服用RG 12525和安慰剂后，log PC20FEV1的平均（95%置信区间）差异为2.88（1.61，4.17）个LTD4加倍剂量（P<0.01），相差7.5倍。我们得出结论，口服RG 12525对轻度哮喘受试者是一种有效的LTD4拮抗剂。
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