2014
DOI: 10.1590/1983-084x/12_167
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Electrocardiographic profile of guinea pig heart submitted to Ginkgo biloba extract and its terpenoids

Abstract: Electrocardiographic effects produced by Ginkgo biloba extract (EGb) and by ginkgolides A (GA) and B (GB), and bilobalide (BB) were investigated in guinea pig heart mounted in Langendorff apparatus (Tyrode, 34 ± 0.1 o C, 95% O 2 , 5% CO 2 ). Electrocardiographic parameters were evaluated in the conditions: 1) control with Tyrode and DMSO, 2) EGb (n=4), GA (n=5), GB (n=5) or BB (n=6), and 3) washout. The results showed that 0.1 and 1.0 mg/ml of EGb do not change the electrocardiographic parameters. However, 10 … Show more

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“…In terms of BB, it can attenuate warfarin‐mediated anticoagulation by inducing mouse hepatic cytochrome P450 enzymes (Taki et al, 2012). Besides, BB may have the potential to cause arrhythmia, because it can change the ECG parameters and induce atrioventricular block (Santos et al, 2014). BB also has species‐dependent and receptor‐selective effects on the constitutive androstane receptor (CAR) and pregnane X receptor (PXR).…”
Section: Toxicity and Safetymentioning
confidence: 99%
“…In terms of BB, it can attenuate warfarin‐mediated anticoagulation by inducing mouse hepatic cytochrome P450 enzymes (Taki et al, 2012). Besides, BB may have the potential to cause arrhythmia, because it can change the ECG parameters and induce atrioventricular block (Santos et al, 2014). BB also has species‐dependent and receptor‐selective effects on the constitutive androstane receptor (CAR) and pregnane X receptor (PXR).…”
Section: Toxicity and Safetymentioning
confidence: 99%