Hydrogen sulfide inhibits human platelet aggregation

被引:92
作者
Zagli, Giovanni
Patacchini, Riccardo
Trevisani, Marcello
Abbate, Rosanna
Cinotti, Sandro
Gensini, Gian Franco
masotti, Giulio
Geppetti, Pierangelo
机构
[1] Univ Florence, Dept Crit Care Med & Surg, Florence, Italy
[2] Chiesi Pharmaceut, Dept Pharmacol, Parma, Italy
[3] Univ Ferrara, Dept Expt Med & Clin Med, Pharmacol Unit, I-44100 Ferrara, Italy
[4] Univ Careggi, Hemophila Ctr, Azienda Osped, Florence, Italy
关键词
hydrogen sulfide; H2S; platelet inhibition; thromboembolic disease; cardiovascular risk factor;
D O I
10.1016/j.ejphar.2006.12.011
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Gaseous mediators such as nitric oxide (NO) play a major regulatory role in the cardiovascular system homeostasis, including platelet aggregation. Here, we investigated whether hydrogen sulfide (H-S), a newly recognized endogenous mediator, can affects aggregation of human platelets, using sodium hydrogen sulfide (NaHS) as H,S-donor. NaHS inhibited platelet aggregation induced by ADP, collagen, epinephrine, arachidonic acid, thromboxane mimetic, U46619, and thrombin. H,S effect was not dependent by cAMP/cGMP generation, NO production or potassium-channels opening. NaHS concentrations (up to 10 mM) did not exert toxic effects on platelet viability. The possible protective role of endogenous H2S in cardiovascular system is discussed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:65 / 68
页数:4
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