Endothelium-dependent relaxation induced by Ca2+, Ba2+ and Sr2+ in the presence of Ca2+-antagonists in canine depolarized coronary arteries.
نویسندگان
چکیده
منابع مشابه
Development of endothelium-dependent relaxation in canine coronary collateral arteries.
BACKGROUND Little information exists regarding development of vasomotor control mechanisms during coronary collateral artery maturation. Therefore, we studied endothelium-dependent relaxation of canine collateral arteries isolated 2, 4, and 9 months after placement of an ameroid occluder around the proximal left circumflex coronary artery. RESULTS Collateral arteries isolated after 2 months e...
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Endplate potentials (EPP) were recorded from the frog sartorius neuromuscular junction under conditions of low quantal content to study the effect of Ba2+, Sr2+, and Ca2+ on the changes in evoked transmitter release that occur during and after repetitive stimulation. The addition of 0.1-1 mM Ba2+ or Sr2+ to the Ca2+-containing bathing solution, or the replacement of Ca2+ with 0.8-1.4 mM Sr2+, l...
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OBJECTIVE To assess the vasodilating effects of amiodarone on canine coronary arteries by using solutions of amiodarone dissolved in polysorbate 80 or water. METHODS Rings of coronary arteries, with or without intact endothelium, were immersed in Krebs solution and connected to a transducer for measuring the isometric force promoted by a vascular contraction. The arteries were exposed to incr...
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The goal of this study was to test the hypotheses that endogenous ADP plays an important role in vivo in mediating platelet aggregation and cyclic coronary artery blood flow variations (CFVs) in stenosed and endothelium-injured coronary arteries in an experimental canine model. Anesthetized animals were studied and coronary blood flow velocities monitored by a pulsed Doppler flow probe position...
متن کاملA Thermodynamic Study of Complex Formation between 15-Crown-5 with Mg2+, Ca2+, Sr2+ and Ba2+ in Acetonitrile Methanol Binary Mixtures Using Conductometric Method
The complexation reactions between Mg2+, Ca2+, Sr2+ and Ba2+ metal cations with 15-crown-5 (15C5) were studied in acetonitrile (AN)-methanol (MeOH) binary mixtures at different temperatures using conductometric method. 15C54 forms 1:1 complexes with Mg2+, Ca2+ and Sr2+ cations in solutions. The Ma2+ cati...
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ژورنال
عنوان ژورنال: Japanese Journal of Pharmacology
سال: 1993
ISSN: 0021-5198
DOI: 10.1016/s0021-5198(19)51204-5