Adrenergic Drugs and Blockade on Coronary Arterioles and Myocardial Contraction
نویسندگان
چکیده
منابع مشابه
Adrenergic drugs and blockade on coronary arterioles and myocardial contraction.
The 3 adrenergic substances, epinephrine, levarterenol and isopropylarterenol, were injected into a coronary artery of anestlietized dogs while recording the coronary artery flow (electromagnetic meter) and pi'cssurc. The effects of these substances on the peripheral coronary pressure (PCP) were recorded by occluding the flow proximal to the pressure gage. All 3 substances caused a qualitativel...
متن کاملEndothelin antagonists block α1-adrenergic constriction of coronary arterioles.
We have previously observed that intracoronary administration of the α1-adrenergic agonist phenylephrine (PE) over a period of minutes induced both an immediate and long-lasting (2 h) vasoconstriction of epicardial coronary arterioles. Because it is unlikely that α1-adrenergic constriction would persist for hours after removal of the agonist, this observation supports the view that another cons...
متن کاملEndothelin antagonists block a1-adrenergic constriction of coronary arterioles
DeFily, David V., Yasuhiro Nishikawa, and William M. Chilian. Endothelin antagonists block a1-adrenergic constriction of coronary arterioles . Am. J. Physiol. 276 (Heart Circ. Physiol. 45): H1028–H1034, 1999.—We have previously observed that intracoronary administration of the a1-adrenergic agonist phenylephrine (PE) over a period of minutes induced both an immediate and long-lasting (2 h) vaso...
متن کاملBeta adrenergic blockade on intramyocardial distribution of coronary blood flow.
Comparison of the Effects of d-Amphetamine and Morphine upon the Locomotor Activity of Mice / Treated with Drugs Which Alter Brain Catecholamine Content. J. E. VILLARREAL, M. GuzMAN AND C. B. SMITH 1 ‘ Comparison of Chiorpromazine, Imipramine, Morphine and d-Amphetamine Self Administration in Cocaine-1)ependent Rhesus Monkeys. FRIEDRICH HOFFMEISTER AND STEVEN H. GOLDBERG. 8 l ffects of Chronica...
متن کاملAbnormalities of left ventricular contraction induced by beta adrenergic blockade.
To understand better the hemodynamic effects caused by propranolol, its effect on the geometry of left ventricular contraction was studied in ten subjects, four with angiographic evidence of coronary artery disease and six without demonstrable heart disease. Heart rate was controlled in four subjects with right atrial pacing. After 5 mg of intravenous propranolol, there were decreases in heart ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Circulation Research
سال: 1956
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.4.6.653