Metabolomics study on the Periplocin-induced cardiotoxicity and the compatibility of Periplocin and Panax notoginseng saponins in reducing cardiotoxicity in rats by GC-MS.

Periplocin, as one of the components of cardiac glycosides in Cortex Periplocae, exhibited cardiotonic effects. Orally ingesting periplocin in high doses or over prolonged periods would cause serious adverse reactions, especially cardiotoxicity, which limits the applications of periplocin in clinical therapy. It has been reported that panax notoginseng saponins could be used in compatibility with periplocin, to reduce the cardiotoxicity of periplocin. To clarify the mechanisms of periplocin-induced cardiotoxicity and compatibility-pairing in reducing cardiotoxicity, the GC-MS method was used to detect and analyze the metabolic profiles of rat plasma and urine samples after oral administration of periplocin, panax notoginseng saponins, and the different compatibility ratios of periplocin and panax notoginseng saponins. The multivariate statistical analysis method was used to screen and identify the biomarkers. A total of 49 potential biomarkers (28 in plasma and 21 in urine) associated with periplocin-induced cardiotoxicity were identified. Seven pathways were found through metabolomic pathway analysis. Moreover, the levels of 42 biomarkers (22 in plasma and 20 in urine) were close to normal after compatibility-pairing. By analyzing the relative metabolic pathways, panax notoginseng saponins could effectively reduce cardiotoxicity of periplocin through affecting the tricarboxylic acid cycle, energy metabolism, and arachidonic acid metabolism. This article is protected by copyright. All rights reserved.

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