Effects of nitric oxide synthase inhibition on regional blood flow in a porcine model of endotoxic shock

作者: Patrick J. Offner , Frank M. Robertson , Basil A. Pruitt

DOI: 10.1097/00005373-199508000-00025

关键词:

摘要: The results of early studies suggest that nitric oxide (NO) synthesis inhibition may be therapeutic in sepsis, but recent data indicate NO harmful. This study investigates the effects with N-nitro-L-arginine methyl ester (NAME) on regional blood flow following endotoxemia. Anesthetized, instrumented swine were randomly divided into four groups. Controls received normal saline resuscitation (NSR) at 1 cc/kg/min beginning T 0 . lipopolysaccharide group (LPS) NSR and Escherichia coli LPS, 200 μg/kg LPS + NAME , plus (50 μg/kg/min) starting only NAME. Hemodynamic data, flow, gastric intramucosal pH (pH i ) measured hourly. increased renal carotid consistent a hyperdynamic state. Mesenteric was decreased. Treatment endotoxic animals decreased flow. improved by shock decreasing cardiac output. perfusion ; however, this requires further for validation.

参考文章(28)
R. M. J. Palmer, A. G. Ferrige, S. Moncada, Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor Nature. ,vol. 327, pp. 524- 526 ,(1987) , 10.1038/327524A0
C. E Wright, D. D Rees, S. Moncada, Protective and pathological roles of nitric oxide in endotoxin shock Cardiovascular Research. ,vol. 26, pp. 48- 57 ,(1992) , 10.1093/CVR/26.1.48
D. A. Pelligrino, H. M. Koenig, R. F. Albrecht, Nitric oxide synthesis and regional cerebral blood flow responses to hypercapnia and hypoxia in the rat Journal of Cerebral Blood Flow and Metabolism. ,vol. 13, pp. 80- 87 ,(1993) , 10.1038/JCBFM.1993.10
S M Gardiner, A M Compton, T Bennett, R M Palmer, S Moncada, Control of regional blood flow by endothelium-derived nitric oxide. Hypertension. ,vol. 15, pp. 486- 492 ,(1990) , 10.1161/01.HYP.15.5.486
BRIAN G. HARBRECHT, TIMOTHY R. BILLIAR, JOSEF STABLER, A. J. DEMETRIS, JUAN B. OCHOA, RONALD D. CURRAN, RICHARD L. SIMMONS, Nitric oxide synthesis serves to reduce hepatic damage during acute murine endotoxemia. Critical Care Medicine. ,vol. 20, pp. 1568- 1574 ,(1992) , 10.1097/00003246-199211000-00015
A Alberola, J M Pinilla, T Quesada, J C Romero, M G Salom, F J Salazar, Role of nitric oxide in mediating renal response to volume expansion. Hypertension. ,vol. 19, pp. 780- 784 ,(1992) , 10.1161/01.HYP.19.6.780
MITCHELL P. FINK, STEPHEN M. COHN, PATRICK C. LEE, HEIDIE R. ROTHSCHILD, YAMO F. DENIZ, HAILONG WANG, RICHARD G. FIDDIAN-GREEN, Effect of lipopolysaccharide on intestinal intramucosal hydrogen ion concentration in pigs: evidence of gut ischemia in a normodynamic model of septic shock. Critical Care Medicine. ,vol. 17, pp. 641- 646 ,(1989) , 10.1097/00003246-198907000-00009
Gillian A. Gray, Cathy Schott, Géraldine Julou-Schaeffer, Ingrid Fleming, James R. Parratt, Jean-Claude Stoclet, The effect of inhibitors of the L-arginine/nitric oxide pathway on endotoxin-induced loss of vascular responsiveness in anaesthetized rats. British Journal of Pharmacology. ,vol. 103, pp. 1218- 1224 ,(1991) , 10.1111/J.1476-5381.1991.TB12327.X
ROBERT B. RUTHERFORD, JOHN V. BALIS, RICHARD S. TROW, GLENN M. GRAVES, Comparison of hemodynamic and regional blood flow changes at equivalent stages of endotoxin and hemorrhagic shock. Journal of Trauma-injury Infection and Critical Care. ,vol. 16, pp. 886- 897 ,(1976) , 10.1097/00005373-197611000-00007