Differential inhibition by aspirin of vascular and platelet prostaglandin synthesis in atherosclerotic patients.

Differential inhibition by aspirin of vascular and platelet prostaglandin synthesis in atherosclerotic patients.
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阿司匹林对动脉粥样硬化患者血管和血小板前列腺素合成的差异抑制。

DOI:
10.1056/nejm198304073081402
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发表时间:
1983
期刊:
The New England journal of medicine
影响因子:
--
通讯作者:
GayJr,WA
GayJr,WA
中科院分区:
--
文献类型:
--
作者:
Weksler,BB;Pett,SB;Alonso,D;Richter,RC;Stelzer,P;Subramanian,V;Tack-Goldman,K;GayJr,WA

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我们研究了70例接受冠状动脉搭桥术的患者单次口服阿司匹林抑制人动脉和静脉组织前列环素合成和抑制血小板血栓素A2合成的能力。术前12 ~ 16小时服用40、80或325 mg阿司匹林,单次服用40、80和325 mg阿司匹林后,血清中血栓烷的生成(提供血小板血栓烷生成的估计值)分别比对照值减少77%、95%和99%。相比之下,手术切除的主动脉组织中的前列环素产量分别仅减少了35%、38%和75%。隐静脉组织中前列环素的产生(40毫克阿司匹林后未检测)仅轻微下降,80毫克后不显着,但325毫克后减少了85%。这些研究结果表明,低剂量的阿司匹林(40至80毫克)可以在很大程度上抑制血小板聚集和血栓素合成,但对动脉和静脉内皮细胞中前列环素的产生影响要小得多。(《新英格兰医学杂志》1983年; 308:800-5)
We studied the ability of a single oral dose of aspirin to inhibit prostacyclin synthesis by human arterial and venous tissue and to inhibit thromboxane A2synthesis by platelets in 70 patients who were undergoing aortocoronary bypass. A dose of 40, 80, or 325 mg of aspirin was administered 12 to 16 hours before surgery.The generation of thromboxane in serum — which provides an estimate of platelet thromboxane production — was reduced from the control value by 77, 95, and 99 per cent after single doses of 40, 80, and 325 mg of aspirin, respectively. By contrast, prostacyclin production in aortic tissue that was removed at operation was reduced by only 35, 38, and 75 per cent, respectively, in response to these doses. Production of prostacyclin in saphenous-vein tissue (not tested after 40 mg of aspirin) fell only slightly and not significantly after 80 mg but was reduced by 85 per cent after 325 mg.These findings indicate that a low dose of aspirin (40 to 80 mg) can largely inhibit platelet aggregation and thromboxane synthesis but has much less effect on prostacyclin production in arterial and venous endothelium. (N Engl J Med. 1983; 308:800–5.)
使用双嘧达莫和阿司匹林减少犬冠状动脉旁路静脉移植物中的血栓形成。
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