Metabolomic profiles and pathways of praziquantel in crucian carp.
2020
Abstract Praziquantel (PZQ) is a drug commonly used to treat some parasitic infections in animals. This study aimed to apply a reliable and simple method to identify important biological metabolites relevant to PZQ in crucian carp (Carassius auratus) to decipher the metabolic pathways and provide a basis for developing new anti-parasite drugs. The experimental group of crucian carp was administered oral PZQ at a dose of 10 mg kg−1 via a stomach feed tube. All biological blood samples were analysed using liquid chromatography electrospray ionization/quadrupole time-of-flight mass spectrometry (LC ESI/Q-TOF MS). MetPA analysis was used to identify relevant pathways for PZQ in crucian carp. Thirty-five potential metabolic pathways were revealed by MetPA network software. Furthermore, the chemical structures of the related metabolites and pathways were identified by comparison with data obtained from free online databases. Forty-four significantly differentially abundant endogenous metabolites were found in the PZQ-treated crucian carp. The changes in metabolomic profiles and pathways induced by PZQ played a role in inhibiting pathogenesis.
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