Results 231 to 240 of about 5,529,262 (276)
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Tachykinin modulation of coronary blood flow
European Journal of Pharmacology, 1986In pentobarbital anesthetized, open chest pigs, coronary blood flow (CBF), myocardial contractility and systemic hemodynamic variables were monitored during intracoronary injections of substance P (SP), neurokinin A (NA) or neurokinin B (NB). SP was most potent in increasing CBF although NA was also active in high doses while NB had absolutely no ...
D, Ezra +5 more
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1997
While the heart pumps blood to serve the whole body, the heart muscle itself must be perfused. Yet the perfusion of the heart is unique. Most of the coronary blood vessels are embedded in the myocardium. In every cardiac cycle, the blood in these vessels are squeezed by the muscle cells.
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While the heart pumps blood to serve the whole body, the heart muscle itself must be perfused. Yet the perfusion of the heart is unique. Most of the coronary blood vessels are embedded in the myocardium. In every cardiac cycle, the blood in these vessels are squeezed by the muscle cells.
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Cigarette smoking and coronary blood flow
Progress in Cardiovascular Diseases, 2003Cigarette smoking is associated with an increased risk for vascular disease. The effects of smoking and nicotine on coronary and peripheral arterial function have been probed with various invasive and noninvasive techniques. The current review provides a brief summary of the available techniques for measuring coronary or peripheral arterial function ...
Johannes, Czernin, Christian, Waldherr
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Aortic Occlusion and Coronary Blood Flow
Archives Internationales de Physiologie et de Biochimie, 1963AbstractThe suggestion has been made by Katz and Wiggers (1927) and by Gupta and Wiggers (1951) that consequent to aortic obstruction, coronary blood flow increased. They hypothesized that the increase could be due to either a decreased coronary vascular resistance, the increased aortic pressure observed consequent to the occlusion or a combination of ...
S M, HORVATH, F J, SULLIVAN
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The effect of diazoxide on coronary blood flow
The American Journal of Cardiology, 1969Abstract Hemodynamic measurements were made on anesthetized and unanesthetized dogs to observe the effects of injection of diazoxide. The measurements included the electrocardiogram, blood pressures, cardiac output and coronary blood flow. Calculated values included coronary and total peripheral resistance, left ventricular work and efficiency ...
J C, Scott, A W, Cowley
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Measurement and modeling of coronary blood flow
WIREs Systems Biology and Medicine, 2015Ischemic heart disease that comprises both coronary artery disease and microvascular disease is the single greatest cause of death globally. In this context, enhancing our understanding of the interaction of coronary structure and function is not only fundamental for advancing basic physiology but also crucial for identifying new targets for treating ...
Sinclair, Matthew +5 more
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Velocity of coronary sinus blood flow as an indicator of coronary arterial flow
American Heart Journal, 1970Abstract In order to determine the validity of coronary sinus mean blood velocity as an indicator of coronary arterial mean blood flow, comparisons were made of the effects of various interventions upon coronary sinus velocity and left anterior descending coronary arterial flow.
P D, Stein +3 more
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Control of coronary blood flow by autacoids
Basic Research in Cardiology, 1995Coronary flow and thus myocardial perfusion is regulated by myogenic, metabolic, humoral and neuro-hormonal factors which closely interact with local autacoids released from the endothelial lining of the coronary bed. In a number of disease states an impaired synthesis and release of autacoids decisively limit the overall capacity of coronary ...
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Regulation of coronary blood flow. Effect of coronary artery stenosis.
Archives des maladies du coeur et des vaisseaux, 2004The consistently high level of myocardial oxygen extraction requires tight control of coronary blood flow, because an increase in myocardial oxygen demand, as occurs during exercise, cannot be obtained by a further increase in oxygen extraction. Consequently, adequate control of coronary vascular resistance is critical.
Duncker, D. J., Merkus, D.
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Coronary blood flow and psoriasis
Dermatologic Therapy, 2017Massimo, Fioranelli +2 more
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