The identification and pharmacokinetic studies of metabolites of salvianolic acid B after intravenous administration in rats.
10.1016/S1875-5364(13)60101-6
- Author:
Qu QI
1
;
Kun HAO
1
;
Fei-Yan LI
1
;
Li-Juan CAO
1
;
Guang-Ji WANG
1
;
Hai-Ping HAO
2
Author Information
1. State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China.
2. State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China. Electronic address: hhp_770505@hotmail.com.
- Publication Type:Journal Article
- Keywords:
Identification;
Metabolites;
Pharmacokinetics;
Salvianolic acid B
- MeSH:
Administration, Intravenous;
Animals;
Benzofurans;
administration & dosage;
chemistry;
metabolism;
pharmacokinetics;
Bile;
chemistry;
Male;
Molecular Structure;
Plasma;
chemistry;
Rats;
Rats, Sprague-Dawley;
Urine;
chemistry
- From:
Chinese Journal of Natural Medicines (English Ed.)
2013;11(5):560-565
- CountryChina
- Language:English
-
Abstract:
AIM:To identify and quantify the major metabolites of salvianolic acid B (SAB) after intravenous injection in rats.
METHODS:LC-IT/TOF-MS was used to identify the metabolites in rat bile, plasma, and urine; LC-MS/MS was used to quantify the two major metabolites.
RESULTS:In rat bile, plasma, and urine, nine metabolites were identified, including methylated metabolites of SAB, lithospermic acid (LSA), the decarboxylation and methylation metabolites of LSA, salvianolic acid S (SAS), and dehydrated-SAS. The t1/2 of monomethyl-SAB and LSA were both very short, and monomethyl-SAB had a larger AUC than LSA in rats.
CONCLUSION:Nine metabolites were found, the metabolic pathway was described, and the pharmacokinetic profiles of LSA and monomethyl-SAB were studied, thereby clarifying that methylation was the dominant metabolic pathway for SAB in rats.
