Title:The Role of Hydrogen Sulfide and H2S-donors in Myocardial Protection Against Ischemia/Reperfusion Injury
Volume: 25
Issue: 34
关键词:
硫化氢,缺血再灌注,心脏保护,H2S供体,气体递质,心肌损伤。
摘要: Hydrogen sulfide (H2S), previously known only as a toxic agent, in the last decades has been
recognized as an important endogenous gasotransmitter, playing a key role in the homeostasis of the cardiovascular
system. In the last years, the growing evidence about a protective role exhibited by H2S
against myocardial ischemia/reperfusion (I/R), led to an increasing interest for the possible mechanism of
action accounting for the H2S cardioprotective effect, and to the discovery of the involvement of several
targets. Currently, many mechanisms of action have been proposed and verified through in vitro and in
vivo models of I/R injury, such as the anti-inflammatory or the anti-oxidant ones, or mechanisms of Ssufhydration
able to modify proteins such as ion channels. Particular attention was focused on the mitochondrial
preservation and on anti-apoptotic mechanisms, and finally even a pro-angiogenesis effect has
been described. At the same time, the design, the development and the pharmacological characterization of
moieties able to release H2S, employed alone as H2S-donor, or conjugated with another drug in hybrid
molecules, led to the production of novel chemical entities in the panorama of cardioprotective drugs.