LIU Dong, DU Shou-ying, HE Xiu-feng, et al. Studies on Simultaneous Determination and Pharmacokinetics of Two Bufadienolides in Rabbits Plasma[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(21): 135-138.
LIU Dong, DU Shou-ying, HE Xiu-feng, et al. Studies on Simultaneous Determination and Pharmacokinetics of Two Bufadienolides in Rabbits Plasma[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(21): 135-138. DOI: CNKI:11-3495/R.20110906.1107.004.
Objective: To establish a HPLC method for the assay of bufalin (BL)
resibufogenin (RBG) and study the pharmacokinetics of BL
RBG in rabbits plasma. Method: The sample blood from rabbits were injected venenum bufonis extract by 0.35 mg·kg-1 at 2
5
10
15
20
30
45
60
90 min. Protein precipitation with acetonitrile and liquid-liquid extraction was applied to purify plasma samples and used HPLC to determine the concentration of BL
RBG in it. The pharmacokinetics parameters were accessed by Kinetica software. Result: In this HPLC method
the separation
precision and accuracy of BL
RBG were well. The calibration curves were linear. The analytical recoveries were all more than 90%
intra and inter-day precision RSD were all less than 15.0% ( n =5). The main pharmacokinetics parameters were fitted by non-compartment models. Conclusion: The HPLC method can be used to determine the concentration and to investigate the pharmacokinetics of BL and RBG.