NOREPINEPHRINE AND SEROTONIN INCREASE THE VASOCONSTRICTOR RESPONSE OF THE PERFUSED RAT TAIL ARTERY TO CHANGES IN CYTOSOLIC CA-2+

被引:13
|
作者
THORINTRESCASES, N [1 ]
OSTER, L [1 ]
ATKINSON, J [1 ]
CAPDEVILLE, C [1 ]
机构
[1] FAC SCI PHARMACEUT & BIOL PARIS,PHARMACOL LAB,F-54000 NANCY,FRANCE
关键词
(Rat); 5-HT; (5-hydroxytryptamine; serotonin); Ca[!sup]2+[!/sup; Fura 2-Ca[!sup]2+[!/sup] signal; Norepinephrine; Smooth muscle (vascular); Tail artery;
D O I
10.1016/0014-2999(90)90191-8
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Vasoconstriction and changes in cytosolic free Ca2+ concentrations (fura 2 with dual wavelength excitation) were measured simultaneously in the perfused tail artery of the rat. Vasoconstrictors (norepinephrine and 5-HT) appear to modulate contraction not only by changing the cytosolic free Ca2+ concentration but also modifying the sensitivity of the contractile proteins to Ca2+. © 1990.
引用
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页码:469 / 471
页数:3
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