ty -jour t1-吸入一氧化氮对甲基苯胺诱导的支气管收缩的影响:兔子JF中的浓度反应研究 - 欧洲呼吸杂志JO -EUR RESSIR J SP -698 LP -702 VL -702 VL -7 IS -4 AU -HOGMAN -HOGMAN -HOGMAN,M AU -AU,M AU,M AU-Wei,sz au -Frostell,C au -Arnberg,H au -Hedenstierna,G Y1-1994/04/01 UR -http://www.qdcxjkg.com/content.com/content/7/4/4/4/698.Abstract N2-一氧化氮(NO)以80 ppm的浓度来反驳甲基酚诱导的呼吸阻力(RRS)的增加,但无法防止兔模型中肺合顺顺化(CRS)的降低。这项研究报告了3、30和300 ppm的吸入效果。新西兰白兔子在神经化麻醉期间用30%氧气插管并用机械通风。甲基酚(3 mg.ml-1)被静脉脱毛,有或没有吸入。3和30 ppm的吸入对诱导的支气管收缩没有影响,而300 ppm完全阻止了RR的增加。3、30或300 ppm no。甲基苯胺引起的CRS的减少。相反,300 ppm no的吸入本身从5.0 +/- 0.1降低至4.3 +/- 0.1 ml.cmh2o-1。另外,平均动脉压(60 +/- 7至54 +/- 5 mmHg),肺泡 - 氧气张力梯度(0.8 +/- 0.8至2.3 +/-- 1.8 kPa)和甲基糖蛋白(0.5 +/- 0.5 +/- 0.2至1.5 +/- 0.5%) changed significantly on inhalation of NO 300 ppm prior to methacholine challenge. We conclude that 3 and 30 ppm NO inhalation does not alter methacholine-induced bronchoconstriction. Inhalation of 300 ppm NO blocks an increase in resistance but fails to counter the reduction in compliance due to methacholine. This suggests that the bronchodilating effects of NO in rabbits in vitro are confined to the large airways. ER -