ArticleNan fang yi ke da xue xue bao = Journal of Southern Medical University2020
[LC-MS/MS analysis of pharmacokinetics of 3, 29-dibenzoyl karounitriol in rats following administration of Trichosanthes sustained-release pellets].
Article in Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo study the plasma concentration and pharmacokinetics of 3, 29-Dibenzoyl Karounitriol (3, 29-DK) from sustained- release pellets and extracts of Trichosanthes at different time points in rats using high-performance liquid chromatography- tandem mass spectrometry (LC-MS/MS).
methodsHealthy male SD rats were given a single gavage of Trichosanthes sustained-release pellets or Trichosanthes extract, and orbital blood samples were taken at different time points within 48 h after drug administration in the pellet group and within 5 h in Trichosanthes extract group for determination of the plasma concentrations of 3, 29-DK using LC-MS/MS. The standard curve of 3, 29-DK content was established, and the specificity, minimum detection limit, precision and accuracy, extraction recovery, stability and matrix effect of LC-MS/MS analysis were assessed. The mean plasms levels of 3, 29-DK at different time points after the drug administration were determined and its pharmacokinetic parameters were calculated using Das 2.0 software.
resultsLC-MS/MS analysis showed a good linearity of 3, 29-DK concentration within the range of 0.5-32 ng/mL, and the results of methodological validation confirmed the validity of this method for biological sample determination. Trichosanthes sustained-release pellets and Trichosanthes extract showed significant differences in their AUC
conclusionsTrichosanthes sustained-release pellets are capable of sustained-release of 3, 29-DK in rats, and thus provides a basis for the study of new dosage forms of Trichosanthes.
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