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Published on: December 14, 2021
[Pharmacokinetics of breviscapine and its beta-cyclodextrin complex in rats]
Hai-Yan Zhang1, Qi-Neng Ping, Jian-Xin Guo
1Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210038, China.
Aim:
To establish RP-HPLC method for determination of plasma scutellarin concentration and study of the pharmacokinetic behavior of scutellarin in rat after ig administration of breviscapine and its beta-cyclodextrin complex (breviscapine-beta-CD).
Methods:
Mobile phase composed of methanol and acetate buffer. The column was Shim-pack C18. Twelve rats randomized into 2 groups were separately given breviscapine and breviscapine-beta-CD at single dose of 10.8 mg.kg(-1). Drug in plasma was extracted and determined by HPLC. The pharmacokinetic parameters were calculated by 3P97 software.
Results:
Linearity was obtained over the range of 10-400 ng.mL(-1). The recovery was 95.32%-98.81%. C(max) and AUC(0-12 h) of breviscapine were (154 +/- 18) ng.mL(-1) and (710 +/- 126) ng.h.mL(-1). For breviscapine-beta-CD, C(max) and AUC(0-12 h) were (328 +/- 31) ng.mL(-1) and (1,093 +/- 200) ng.h.mL(-1), respectively. There were significant differences of AUC(0-12 h) between breviscapine and breviscapine-beta-CD (P < 0.01).
Conclusion:
The assay method was suitable for the determination of scutellarin plasma concentration in rat. Brevescapine-beta-CD showed greater absorption compared with that of brevescapine.
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