诱导型一氧化氮合酶与环氧合酶抑制剂对实验性主动脉瘤的抑制作用。

文章的细节

引用

阿姆斯特朗PJ,富兰克林DP,凯里DJ,埃尔莫尔JR

诱导型一氧化氮合酶与环氧合酶抑制剂对实验性主动脉瘤的抑制作用。

安瓦斯外科杂志,2005;19(2):248-57。

PubMed ID
15770365 (PubMed视图
摘要

大鼠腹主动脉瘤(AAA)模型与炎症、细胞外基质破坏、诱导型一氧化氮合酶(iNOS)和基质金属蛋白酶-9 (MMP-9)的产生有关。吲哚美辛是一种非选择性环加氧酶抑制剂,可能通过抑制环加氧酶-2 (COX-2)活性来阻止AAA的形成。我们假设吲哚美辛、罗非昔布(选择性COX-2抑制剂)和1400w(选择性iNOS活性抑制剂)可以减少大鼠模型中的动脉瘤形成。在两项基于给药途径的平行研究中,46只雄性Wistar大鼠接受了主动脉内弹性蛋白酶输注。16只大鼠随机给予罗非昔布或水洗胃。30只大鼠随机给予皮下生理盐水、吲哚美辛或1400w。测量心率、血压和主动脉直径。在术后第7天主动脉段进行Western Blot和MMP-9和iNOS mRNA分析。免疫组化评价弹性蛋白降解和炎症反应。弹力蛋白酶在所有大鼠中均产生AAA。 1400 W significantly limited aneurysm expansion (p = 0.01) whereas treatment with indomethacin and rofecoxib did not. Only 1400 W significantly increased blood pressure (p < 0.001). Indomethacin alone statistically decreased MMP-9 (p < 0.011). 1400 W resulted in greater conservation of aortic elastin than indomethacin (p = 0.025). All groups demonstrated statistically similar expression of iNOS. In conclusion, selective iNOS activity inhibitor, 1400 W, significantly decreased aneurysm size and preserved aortic elastin without altering MMP-9 levels. Indomethacin significantly decreased MMP-9 expression without decreasing aneurysm size. Rofecoxib did not significantly decrease MMP-9 expression or aneurysm size. Inhibition of iNOS limits aneurysmal expansion by mechanisms other than MMP-9 inhibition. MMP-9 inhibition by indomethacin is not sufficient to limit aneurysm expansion in our model.

引用这篇文章的药物银行数据

药物靶点
药物 目标 种类 生物 药理作用 行动
吲哚美辛 前列腺素G/H合成酶2 蛋白质 人类
是的
抑制剂
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