Affiliation:
1. State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
2. School of Pharmacy, Guizhou Medical University, China, Guiyang
3. Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, China
Abstract
A simple, rapid, and selective ultra-performance liquid chromatography-mass spectrometry (MS)/MS method was established to investigate tissue distribution of 6 polyphenolic compounds of Polygonum orientale L. extract in normal and myocardial ischemia (MI) model rat tissues, including isoorientin, orientin, vitexin, quercitrin, astragalin, and protocatechuic acid. An Agilent Eclipse Plus C18 column was used. The mobile phase consisted of acetonitrile and water, both with 0.1% formic acid. Quantification was performed in negative ion multiple reaction monitoring mode. All the analysts had good linearity with r ≥ 0.9912. Accuracy ranged from 12.49% to −13.98% for the 6 compounds; within-day variation (precision) was ≤9.98% and interday precision was ≤11.88%. Extraction recovery of the analysts ranged from 80.55% to 99.92%; the matrix was 81.00%–98.73%. The analyst preparations were stable throughout. The 6 compounds were rapidly distributed in various tissues after oral administration, without accumulation over 12 hours. Compared with normal rats, distributions of 6 compounds in the heart, liver, spleen, lung, kidney, brain, stomach, and intestine in MI model rats were different from those in the normal group. The study provides an insight for further research of P. orientale L.
Funder
National Natural Science Foundation of China
Subject
Complementary and alternative medicine,Plant Science,Drug Discovery,Pharmacology,General Medicine
Cited by
2 articles.
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