YUAN Xiu-ze, ZOU Sheng-qin, WANG Xiao-gang, et al. Pharmacokinetic Differences of Total Glucosides from Paeoniae Radix Alba in Rats with Adjuvant Arthritis and Normal Rats[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(20): 86-89.
YUAN Xiu-ze, ZOU Sheng-qin, WANG Xiao-gang, et al. Pharmacokinetic Differences of Total Glucosides from Paeoniae Radix Alba in Rats with Adjuvant Arthritis and Normal Rats[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(20): 86-89. DOI: 10.13422/j.cnki.syfjx.2016200086.
Objective: To compare the pharmacokinetics of total glucosides from Paeoniae Radix Alba in rats with adjuvant arthritis and normal rats. Method: Adjuvant arthritis rat model was established by a single intradermal injection of complete Freund's adjuvant (CFA) into the rat right footpad.The plasma concentrations of paeoniflorin at different time after intragastric administration of total glucosides from Paeoniae Radix Alba were determined by RP-HPLC.The pharmacokinetic parameters were estimated by PKSolverV2.0 software. Result: when administration of high
medium and low dose (1.80
0.90
0.47 g·kg-1)
Cmax of paeoniflorin in model group rats were (7.93±1.09)
(4.81±1.06)
(1.02±0.82) mg·L-1
respectively;Tmax were 180 min.In the normal group
t1/2 of paeoniflorin were (215.63±5.26)
(213.16±4.18)
(208.55±4.94) min;Cmaxwere (52.39±2.49)
(24.52±1.69)
(5.79±0.52) mg·L-1;AUC0-t were (12 564.08±467.37)
(5 839.10±380.86)
(1 439.95±144.39) mg·L-1·min
respectively;Tmax were 150 min. Conclusion: Absorption of paeoniflorin is slow under the state of rheumatoid arthritis
Cmax
AUC0-t and AUC0-∞ are significantly decreased.Rheumatoid arthritis can affect the pharmacokinetic behaviour of total glucosides from Paeoniae Radix Alba in vivo.