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ANTAGONISM OF TOTAL FLAVONES OF GYNOSTEMMA PENTAPHYLLUM (THUNB) MAK TO ANIMAL EXPERIMENTAL ARRHYTHMIA 被引量:2

ANTAGONISM OF TOTAL FLAVONES OF GYNOSTEMMA PENTAPHYLLUM (THUNB) MAK TO ANIMAL EXPERIMENTAL ARRHYTHMIA
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摘要 The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The results showed that in TFG group the duration of ventricular tachycardia (VT) induced by aconitine in rats was shortened (P<0 01) and the incidence of ventricular fibrillation (VF) and the mortality were decreased (P<0 01) respectively. The arrhythmias induced by i.v. BaCl 2 4 mg/kg in rats were immediately recovered to a normal sinus rhythm and VT induced by i.v. CaCl 2 130 mg/kg in rats was decreased by TFG i.v. TFG i.v. elevated the doses of i.v. strophanthin G to induce ectopic beats (EB), VT, VF and cardiac arrest (CA) in guinea pigs by 89%, 58%, 27%, and 28% (P<0 01) respectively. The incidence of VF induced by coronary artery ligation in rats was decreased (P<0 01), duration of EB, duraton of VT and VF decreased to 45%, 42% and 0% of the NS group respectively. The results suggest that TFG in dosage of 60 mg/kg might be useful for the prevention of VT and VF. The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The results showed that in TFG group the duration of ventricular tachycardia (VT) induced by aconitine in rats was shortened (P<0 01) and the incidence of ventricular fibrillation (VF) and the mortality were decreased (P<0 01) respectively. The arrhythmias induced by i.v. BaCl 2 4 mg/kg in rats were immediately recovered to a normal sinus rhythm and VT induced by i.v. CaCl 2 130 mg/kg in rats was decreased by TFG i.v. TFG i.v. elevated the doses of i.v. strophanthin G to induce ectopic beats (EB), VT, VF and cardiac arrest (CA) in guinea pigs by 89%, 58%, 27%, and 28% (P<0 01) respectively. The incidence of VF induced by coronary artery ligation in rats was decreased (P<0 01), duration of EB, duraton of VT and VF decreased to 45%, 42% and 0% of the NS group respectively. The results suggest that TFG in dosage of 60 mg/kg might be useful for the prevention of VT and VF.
出处 《Journal of Pharmaceutical Analysis》 CAS 1999年第2期125-128,共4页 药物分析学报(英文版)
关键词 total flavones of Gynostemma pentaphyllum (Thunb) Mak PHENYTOIN ACONITINE barium chloride calcium choride ARRHYTHMIA ischemia myocarial total flavones of Gynostemma pentaphyllum (Thunb) Mak phenytoin aconitine barium chloride calcium choride arrhythmia ischemia myocarial
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