LONG-TERM COMPLETE URETERAL OBSTRUCTION IN THE YOUNG-RAT

被引:16
作者
JOSEPHSON, S
HEMSEN, A
机构
[1] Department of Paediatric Surgery, St. Göran’s Children’s Hospital, Stockholm
[2] Department of Physiology and Pharmacology, Karolinska Institute, Stockholm
关键词
URETERAL OBSTRUCTION; RENAL ENDOTHELIN; WEANLING RATS;
D O I
10.1159/000282636
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Complete obstruction of one ureter was created in 3-week-old weanling rats. The endothelin concentration in the renal tissue was measured by radioimmunoassay. In the obstructed kidney, a substantial increase was observed, after 1 week +90%, after 2 weeks +55%, and after 4 weeks +145% compared to the control rat kidneys. The endothelin-l /endothelin-3 ratio was found to be considerably raised, indicating a predominance of the vasoconstrictor effects of the - with reference to vasoactivity - bi-potential endothelin. Its contribution to vasoconstriction and to glomerular destruction in obstructive nephropathy is discussed.
引用
收藏
页码:57 / 61
页数:5
相关论文
共 24 条
[1]  
Klahr S., Harris K., Purkerson M.L., Effects of obstruction on renal functions, Pediatr Nephrol, 2, pp. 34-42, (1988)
[2]  
Kon V., Badr K.F., Biological actions and pathophysiologic significance of endothelin in the kidney, Kidney Int, 40, pp. 1-12, (1991)
[3]  
Simonson M., Endothelins: Multifunctional renal peptides, Physiol Rev, 73, pp. 375-411, (1993)
[4]  
Reyes A., Klahr S., Renal function after release of ureteral obstruction: Role of endothelin and the renal artery endothelium, Kidney Int, 42, pp. 632-638, (1992)
[5]  
Kelleher J.P., Shah V., Godley M.L., Wakefield A.J., Gordon I., Ransley P.G., Snell M.E., Risdon R.A., Urinary endothelin (ET 1) in complete ureteric obstruction in the miniature pig, Urol Res, 20, pp. 63-65, (1992)
[6]  
Nobuyuki M., Kobayashi M., Nakajima A., Amano H., Shimamoto K., Ishikawa K., Wata-Nabe K., Nishikibe M., Yano M., Ikemoto F., Protective effect of a selective endothelin receptor antagonist, BQ-123, in ischemic acute renal failure in rats, Eur J Pharmacol, 221, pp. 77-83, (1992)
[7]  
Kon V., Yoshioka T., Fogo A., Ichikawa I., Glomerular actions of endothelin in vivo, J Clin Invest, 83, pp. 1762-1767, (1989)
[8]  
Josephson S., Experimental obstructive hydronephrosis in newborn rats. III. Long-term effects on renal function, J Urol, 129, pp. 396-400, (1983)
[9]  
Josephson S., Ericson A.-C., Sjoquist M., Experimental obstructive hydronephrosis in newborn rats. VI. Long-term effects on glomerular filtration and distribution, J Urol, 134, pp. 391-395, (1985)
[10]  
Stenberg A., Olsen L., Josephson S., Robertson B., Pcrsson A., Partial ureteric obstruction in weanling rats, Scand J Urol Nephrol, 19, pp. 139-146, (1985)