川芎嗪的鼻腔吸收及冰片的促进作用

Nasal absorption of ligustrazine and promotion action of synthetic borneol

目的 :探讨川芎嗪的鼻腔吸收及冰片的促进作用。方法 :采用大鼠在体鼻腔重循环法 ,研究川芎嗪鼻腔吸收的量效关系及冰片对其鼻腔吸收的影响。结果 :循环液中川芎嗪的浓度在 0 .2 5 ,0 .75 ,1.2 5g·L- 1时 ,鼻腔的吸收速率常数分别为 0 .0 195、0 .0 2 2 7、0 .0 2 4 1min- 1;但当药液浓度为 2 .5 ,5 .0g·L- 1时 ,鼻粘膜吸收速率常数随川芎嗪浓度的增加反而减少。结论 :川芎嗪可通过鼻腔吸收 ,冰片对其鼻腔吸收具有促进作用。

AIM: To investigate the nasal absorption of ligustrazine and promotion action of synthetic borneol. METHODS: In situ nasal recirculation method was used to study the dose effect relationship of nasal absorption of ligustrazine and the effect of synthetic borneol on nasal absorption of ligustrazine in rats. RESULTS: When the concentrations of ligustrazine were 0.25 , 0.75 ,and 1.25 g·L -1 in circulation liquid, respectively, the corresponding values of the absorption rate constant k were 0.0195 , 0.0227 , and 0.0241 min -1 . However, when the concentrations were 2.5 and 5.0 g·L -1 in circulation liquid, the absorption rate constant k lowered with the concentration being added. CONCLUSION: Ligustrazine can be absorbed through the nasal mucous and synthetic borneol can promote the absorption.