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Pharmacokinetics of paeoniflorin microemulsion after repeated dosing in rats with adjuvant arthritis
- Source :
- Die Pharmazie. 67(12)
- Publication Year :
- 2013
-
Abstract
- An investigation was designed and conducted to detect pharmacokinetic differences between paeoniflorin (Pae) microemulsion and Pae saline. Pae microemulsion (25, 50,100 mg x kg(-1)) was administered to three groups of rats with adjuvant arthritis (AA) while Pae (25, 50,100 mg x kg(-1)) was given to another three groups of rats both for ten days. A HPLC assay was developed to determine the plasma concentrations of Pae. The plasma concentrations of Pae groups (25, 50 mg x kg(-1)) were undetectable. Furthermore, compared with pharmacokinetic parameters of Pae group (100 mg x kg(-1)), maximum concentration (C(max)), the area under the plasma concentration-time curve (AUC(0-t)), and mean retention time MRT(0-infinity))(h) of Pae microemulsion (100 mg x kg(-1)) increased apparently, while volume of distribution (Vd) and clearance rate (CL/F) decreased. These results indicate that a microemulsion significantly improves the absorption of Pae in AA rats.
- Subjects :
- Bridged-Ring Compounds
Male
Foot
Anti-Inflammatory Agents, Non-Steroidal
Freund's Adjuvant
Biological Availability
Paeonia
Arthritis, Experimental
Benzoates
Plant Roots
Rats
Rats, Sprague-Dawley
Glucosides
Area Under Curve
Calibration
Monoterpenes
Animals
Edema
Emulsions
Indicators and Reagents
Chromatography, High Pressure Liquid
Half-Life
Subjects
Details
- ISSN :
- 00317144
- Volume :
- 67
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Die Pharmazie
- Accession number :
- edsair.pmid..........1c2414dd492e85e52b06327f244e7d15