ZHANG Wei, LI Ling-jun, WANG Ying-lan. Absorption Kinetics of Gastrodin and Paeonol of Tiangou Jangya Capsules in Rats’ Intestinal[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(4): 150-153.
ZHANG Wei, LI Ling-jun, WANG Ying-lan. Absorption Kinetics of Gastrodin and Paeonol of Tiangou Jangya Capsules in Rats’ Intestinal[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(4): 150-153. DOI: 10.13422/j.cnki.syfjx.2012.04.050.
Objective:To study the absorption kinetics of the active components of Tiangou Jangya capsules in rats’ intestinal.Method:Using an improved rat everted gut sac model
gastrodin concentration and paeonol concentration were determined by HPLC.The concentration of cumulative absorption was calculated.The linear regression equation was figured through the concentration of cumulative absorption and time.The parameters were calculated.Result:The regression equation of gastrodin was Y=0.000 6X-0.012 8(r=0.993 0)
Ka=6.0×10-5 μg·min-1·cm-2
t1/2=1.16×104 h;the regression equation of paeonol was Y=0.000 68X+0.001 1(r=0.983 5)
Ka=6.8×10-5 μg·min-1·cm-2
t1/2=1.02×104 h.Conclusion:The absorption of gastrodin and paeonol conforms to the first-order kinetics in rats’intestinal.