Circulation Research, Vol 68, 1768-1772, Copyright © 1991 by American Heart Association
ARTICLES |
CM Boulanger and TF Luscher
Department of Research, University Hospital, Basel, Switzerland.
In intact porcine aorta, endothelium-derived nitric oxide released on thrombin stimulation inhibits the concomitant production of endothelin. Experiments were designed to examine the effect of hirudin (which inactivates thrombin) and the nitrovasodilators nitroglycerin and 3- morpholinosydnonimine on the spontaneous and thrombin-stimulated release of endothelin in intact blood vessels. Endothelin was detected by radioimmunoassay in the incubating medium of intact porcine aortas with endothelium. The spontaneous release of endothelin was not affected by hirudin (0.1 micrograms/ml) but that induced by thrombin (4 units/ml) was prevented. Nitroglycerin (10(-5) M) and the active metabolite of molsidomine, 3-morpholinosydnonimine (10(-5) M), did not modify the basal production of endothelin from the intima of intact porcine aortas. However, the nitrates fully inhibited the release of the peptide induced by thrombin (4 units/ml). The inhibitory effects of both 3-morpholinosydnonimine and nitroglycerin on the thrombin- stimulated release of endothelin were abolished in the presence of an inhibitor of soluble guanylate cyclase, methylene blue (10(-5) M). Thus, the thrombin-stimulated release of endothelin is inhibited by inactivation of thrombin with hirudin or by agents that mimic the effect of endothelium-derived nitric oxide. In contrast, the spontaneous production of endothelin is not modulated by the drugs.
This article has been cited by other articles:
![]() |
T. F. Luscher and M. Barton Endothelins and Endothelin Receptor Antagonists : Therapeutic Considerations for a Novel Class of Cardiovascular Drugs Circulation, November 7, 2000; 102(19): 2434 - 2440. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Shichiri, M. Yokokura, F. Marumo, and Y. Hirata Endothelin-1 Inhibits Apoptosis of Vascular Smooth Muscle Cells Induced by Nitric Oxide and Serum Deprivation via MAP Kinase Pathway Arterioscler Thromb Vasc Biol, April 1, 2000; 20(4): 989 - 997. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Parent and M. Lavallee Endothelin-dependent effects limit flow-induced dilation of conductance coronary vessels after blockade of nitric oxide formation in conscious dogs Cardiovasc Res, January 14, 2000; 45(2): 470 - 477. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Thorin, R. Parent, Z. Ming, and M. Lavallee Contribution of endogenous endothelin to large epicardial coronary artery tone in dogs and humans Am J Physiol Heart Circ Physiol, August 1, 1999; 277(2): H524 - H532. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. Ming, R. Parent, E. Thorin, and M. Lavallee Endothelin-Dependent Tone Limits Acetylcholine-Induced Dilation of Resistance Coronary Vessels After Blockade of NO Formation in Conscious Dogs Hypertension, November 1, 1998; 32(5): 844 - 848. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Kirchengast and K. Munter Endothelin and restenosis Cardiovasc Res, September 1, 1998; 39(3): 550 - 555. [Full Text] [PDF] |
||||
![]() |
P. Moreau, H. Takase, C. F. Kung, S. Shaw, and T. F. Luscher Blood Pressure and Vascular Effects of Endothelin Blockade in Chronic Nitric Oxide–Deficient Hypertension Hypertension, March 1, 1997; 29(3): 763 - 769. [Abstract] [Full Text] |
||||
![]() |
J. Frielingsdorf, C. Seiler, P. Kaufmann, G. Vassalli, T. Suter, and O. M. Hess Normalization of Abnormal Coronary Vasomotion by Calcium Antagonists in Patients With Hypertension Circulation, April 1, 1996; 93(7): 1380 - 1387. [Abstract] [Full Text] |
||||
![]() |
B. Jiang, S. Morimoto, K. Fukuo, A. Hirotani, M. Tamatani, T. Nakahashi, A. Nishibe, T. Niinobu, S. Hata, S. Chen, et al. Parathyroid Hormone–Related Protein Inhibits Endothelin-1 Production Hypertension, March 1, 1996; 27(3): 360 - 363. [Abstract] [Full Text] |
||||
![]() |
A. Lerman, D. R. Holmes Jr, M. R. Bell, K. N. Garratt, R. A. Nishimura, and J. C. Burnett Jr Endothelin in Coronary Endothelial Dysfunction and Early Atherosclerosis in Humans Circulation, November 1, 1995; 92(9): 2426 - 2431. [Abstract] [Full Text] |
||||
![]() |
V. Richard, M. Hogie, M. Clozel, B.-M. Loffler, and C. Thuillez In Vivo Evidence of an Endothelin-Induced Vasopressor Tone After Inhibition of Nitric Oxide Synthesis in Rats Circulation, February 1, 1995; 91(3): 771 - 775. [Abstract] [Full Text] |
||||
|
Circulation Research Home | Subscriptions | Archives | Feedback | Authors | Help | AHA Journals Home | Search Copyright © 1991 American Heart Association, Inc. All rights reserved. Unauthorized use prohibited. |