Suppr超能文献

前列腺素D2与前列环素、卡前列环素及乙内酰脲前列腺素BW245C在豚鼠血小板中的相互作用。

Interaction of prostaglandin D2 with prostacyclin, carbacyclin and the hydantoin prostaglandin, BW245C, in guinea-pig platelets.

作者信息

Hamid S, Whittle B J

出版信息

Br J Pharmacol. 1985 May;85(1):285-90. doi: 10.1111/j.1476-5381.1985.tb08858.x.

Abstract

The anti-aggregating actions of prostaglandin D2 (PGD2) have been compared to prostacyclin (PGI2), its stable analogue carbacyclin and a hydantoin prostaglandin, BW245C, in guinea-pig PGI2, carbacyclin and BW245C were potent inhibitors of ADP-induced aggregation in guinea-pig platelets, with ID50 values comparable to those obtained in human platelet-rich-plasma. In contrast, PGD2 acted as a weak and partial inhibitor in guinea-pig platelet aggregation, producing a bell-shaped dose-response relationship. PGD2 induced a dose-related antagonism of the inhibitory actions of BW245C, prostacyclin and carbacyclin on guinea-pig platelets. However, PGD2 did not antagonize the inhibitory actions of either forskolin or dibutyryl cyclic AMP on this platelet preparation. The results suggest a non-specific interaction of PGD2 with these prostanoid binding sites on guinea-pig platelets.

摘要

已将前列腺素D2(PGD2)的抗聚集作用与前列环素(PGI2)、其稳定类似物卡前列环素以及一种乙内酰脲前列腺素BW245C进行了比较。在豚鼠中,PGI2、卡前列环素和BW245C是ADP诱导的豚鼠血小板聚集的有效抑制剂,其半数抑制浓度(ID50)值与在富含血小板的人血浆中获得的值相当。相比之下,PGD2在豚鼠血小板聚集中起弱的部分抑制剂作用,产生钟形剂量反应关系。PGD2诱导了BW245C、前列环素和卡前列环素对豚鼠血小板抑制作用的剂量相关拮抗作用。然而,PGD2并不拮抗福斯可林或二丁酰环磷腺苷对该血小板制剂的抑制作用。结果表明PGD2与豚鼠血小板上的这些前列腺素结合位点存在非特异性相互作用。

相似文献

引用本文的文献

2
The COX-2/prostanoid signaling cascades in seizure disorders.癫痫疾病中的 COX-2/前列腺素信号级联。
Expert Opin Ther Targets. 2019 Jan;23(1):1-13. doi: 10.1080/14728222.2019.1554056. Epub 2018 Dec 2.

本文引用的文献

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验