Acknowledgments This work was supported by the Foundation of the Ministry of Education, People's Republic of China (20070001702 and 20070001770); the National Natural Science Foundation of China 81070212, 30821001, and 30801251); the Major Basic Research Development Program of the People's Republic of China (2011CB503904); and the Beijing Natural Science Foundation (7082095). We thank Shu-xu DU and Wei LU for their technical assis- tance.
Aim: To compare the vasorelaxing effects of hydrogen sulfide (H2S) on isolated aortic and pulmonary artery rings and to determine their action mechanisms. Methods: H2S-induced vasorelaxation of isolated rat aortic...