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  • Title: [The role of adrenergic innervation in distributing systemic and coronary fractions of left ventricular output under increased pressure in the ascending aorta].
    Author: Osadchiĭ LI, Balueva TV, Sergeev IV.
    Journal: Biull Eksp Biol Med; 1989 Apr; 107(4):387-90. PubMed ID: 2720143.
    Abstract:
    The significance of neurogenic influences upon the distribution of systemic and coronary fraction during rise of aortic pressure by step occlusion of ascending aorta was studied in anesthetized cats. Under elevation of aortic pressure up to 60 mm Hg the increase in systemic fraction and less pronounced rise of coronary fraction were observed. When aortic pressure elevation was more than 60 mm Hg commensurable increase of both fractions occurred. Under beta-adrenoreceptor blockade elevation of aortic pressure more than 60 mm Hg evoked the significant increase in systemic fraction and reduction in coronary fraction.
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