Comparative pharmacokinetics of rhein and chrysophanol after oral administration of Quyu Qingre granules in normal and acute blood stasis rabbits.

Abstract:

ETHNOPHARMACOLOGICAL RELEVANCE:Quyu Qingre granules (QYQRGs) are useful traditional Chinese composite prescription in the treatment of blood stasis syndrome. Comparing differences of pharmacokinetic properties of compounds in QYQRG between normal and blood stasis syndrome rabbits can provide much helpful information. The primary objective of this study was to compare the pharmacokinetics of rhein and chrysophanol after orally administering 2.0 g/kg b.w. QYQRG in normal and acute blood stasis model rabbits. MATERIALS AND METHODS:The blood samples were collected subsequently at 5, 10, 15, 20, 30, 45, 60, 75, 90, 120, 240, 360 and 480 min after orally administrating QYQRG. The concentrations of rhein and chrysophanol in rabbit plasma were determined by HPLC and main pharmacokinetic parameters were obtained. RESULTS:The pharmacokinetic parameters AUC(0-∞), T(lag), Cmax and K21 of both rhein and chrysophanol were markedly different in the acute blood stasis model rabbits. It was also found that parameters A, β, MRT and T(1/2β) of rhein and the parameters α and T1/2α of chrysophanol all exhibited significant difference between the normal and acute blood stasis model rabbits. CONCLUSIONS:The absorption time of rhein and chrysophanol was accelerated and the absorption amount of these two compounds was increased in rabbits with acute blood stasis, suggesting that rhein and chrysophanol would possibly be the two effective compounds in QYQRG.

journal_name

J Ethnopharmacol

authors

Dai XY,Yan YL,Wu QF,Yu CH,Liu X,Jiang YQ

doi

10.1016/j.jep.2014.02.005

subject

Has Abstract

pub_date

2014-04-28 00:00:00

pages

338-43

issue

2

eissn

0378-8741

issn

1872-7573

pii

S0378-8741(14)00106-8

journal_volume

153

pub_type

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