9 rezultatov
Studies were undertaken in the isolated blood perfused dog heart to determine the nature of the myocardial refractoriness induced by veratrum alkaloids. The initial intracoronary injection of cryptenamine acetates (Unitensin) was always associated with an increase in myocardial contractility and a
The purpose of this study was to determine whether cardiac receptors that are stimulated by veratrum alkaloids exert an inhibitory influence on the secretion of vasopressin (ADH). In six chloralose-anesthetized dogs, injection of cryptenamine (2 microgram/kg) into the circumflex coronary artery
Cardiovascular responses to intravenous bolus doses of certain exogenous substances (capsaicin, phenyldiguanide, cryptenamine, veratrine sulphate) which act on chemoreceptors in the pulmonary or proximal arterial circulation were compared to the naturally occurring chemoreceptor agonist,
Cardiovascular responses to stimulation of cardiopulmonary receptors were evaluated in standard breed developing swine (1-2 days, 1-2 wk, and 2 mo of age) and sexually mature miniswine anesthetized with 0.25-0.50% halothane in O2. Cryptenamine, a mixture of veratrum viride alkaloids (VVA), was