EVIDENCES FOR THE EXISTENCE OF ENDOTHELIUM-DERIVED RELAXING FACTOR IN THE RENAL MEDULLA

被引:43
作者
BIONDI, ML [1 ]
DOUSA, T [1 ]
VANHOUTTE, P [1 ]
ROMERO, JC [1 ]
机构
[1] MAYO CLIN & MAYO FDN,MAYO SCH MED,DEPT PHYSIOL & BIOPHYS,ROCHESTER,MN 55905
关键词
CGMP; acetylcholine; Endothelium-derived relaxing factor; Renal medulla;
D O I
10.1093/ajh/3.11.876
中图分类号
R6 [外科学];
学科分类号
1002 ; 100210 ;
摘要
The basal levels of cGMP in renal medulla slices were enhanced when the slices were stimulated with both endothelium-dependent (acetylcholine) and endothelium-independent (molsidomine) vasodilators. When preincubated with NG-mono-methyl-L-arginine, a specific inhibitor of endothe-lium-derived relaxing factor, only the acetycholine-stimulated increase was completely abolished. Furthermore, a preincubation with L-arginine, a selective precursor of endothelium-derived relaxing factor, enhanced the cGMP levels. The results indicate that the renal medulla, presumably the endothelial cells of the vasa recta, is able to produce endothelium-derived relaxing factor. © 1990 by the American Journal of Hypertension, Ltd.
引用
收藏
页码:876 / 878
页数:3
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