Titlebook: Adrenergic Mechanisms in Myocardial Ischemia; Gerd Heusch,John Ross Conference proceedings 1991 Springer-Verlag Berlin Heidelberg 1991 arr

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https://doi.org/10.1007/978-1-4302-0548-7siological effects of α- and β-adrenergic receptor subtypes in large coronary arteries. Studies in our laboratory have addressed these questions in conscious calves, chronically instrumented to measure large coronary artery diameter and coronary blood flow. Additionally, adrenergic receptor subtype

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https://doi.org/10.1007/978-1-4842-2671-1 vessel, but the development of new vascular smooth muscle. Experiments have been performed to examine vasomotor characteristics of mature coronary collaterals from dogs 3 to 6 months following ameroid constrictor placement. Studies in Langendorff blood-perfused hearts have shown that transcollatera

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https://doi.org/10.1007/978-1-4842-8155-0sing dog is reviewed. Studies utilized chronically instrumented dogs having sonomicrometers for the measurement of regional wall thickening and transducers for the measurement of left ventricular and systemic hemodynamics. During steady state exercise, either the selective α.-adrenoceptor blocker pr

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https://doi.org/10.1007/978-3-319-12066-9r reserve in the subendocardial layers. Because blood flow in a maximally vasodilated vascular bed is linearly dependent on perfusion pressure, additional reductions in perfusion pressure will decrease subendocardial blood flow. The subepicardial layers, operating on a different autoregulatory press

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Philip Meitiner,Pradeeka Seneviratnercise. Paradoxically, a concomitant adrenergic α-receptor-mediated coronary vasoconstriction competes with the local metabolic coronary vasodilation that occurs during these conditions, and thereby limits metabolic hyperemia. Measurements of transmural blood flow in α-receptor blocked and α-receptor

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Initial Requirements and Use Cases,rdial ischemia in dogs. It was demonstrated that in the quiescent conscious dog, the coronary circulation is devoid of an α. -coronary constriction. Furthermore, it was shown by the intracoronary injection of selective agonists that both α. - and α.-receptor subtypes are present in coronary vessels.