[Simultaneous determination of daphnetin, daphnoretin, daphneticin in rat plasma by LC-MS/MS and its application in pharmacokinetic study].
Zhongguo Zhong Yao Za Zhi
; 42(10): 1964-1970, 2017 May.
Article
in Zh
| MEDLINE
| ID: mdl-29090558
ABSTRACT
To establish HPLC-MS/MS method for simultaneous determination of daphnetin, daphnoretin, and daphneticin in rat plasma after oral and intravenous administration of Daphne giraldii extract, and then use them in the calculation of pharmacokinetic parameters. Six sprague-dawley rats received intragastric administration of D. giraldii extract (daphnetin, daphnoretin and daphneticin were 88.40, 3.24 and 4.28 mgâ¢kg⻹, respectively). Their drug plasma concentration was determined by LC-MS/MS with schisandrin as an internal standard to draw plasma concentration-time curve. The pharmacokinetic parameters were calculated by Kinetica 4.4. The results showed that the linear range was 5-1 000 µgâ¢L⻹ for daphnetin, daphnoretin and daphneticin, and the method ological test showed conformance to the requirements.The intraday and inter-day variable coefficients (RSD) were both less than 15.0%, indicating that both of legitimate precise and accuracy were consistent with the analysis requirements of biological samples. For daphnetin, the pharmacokinetic parameters Tmax, Cmax, AUC0-t, T1/2 and MRT were 4 h, 858.96 µgâ¢L⻹, 10 566.4 µgâ¢L⻹â¢h, 5.19 h and 9.43 h, respectively. For daphnoretin, the pharmacokinetic parameters Tmax, Cmax, AUC0-t, T1/2 and MRT were 2.92 h, 178.00 µgâ¢L⻹, 905.89 µgâ¢L⻹â¢h, 3.50 h and 6.95 h, respectively. For daphneticin, the pharmacokinetic parameters Tmax, Cmax, AUC0-t, T1/2 and MRT were 2 h, 36.67 µgâ¢L⻹, 355.11 µgâ¢L⻹â¢h, 4.95 h and 8.27 h, respectively. The LC-MS/MS analysis method established in this study was proved to be so accurate and sensitive that it can be applied to the pharmacokinetic study of daphnetin, daphnoretin and daphneticin.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Umbelliferones
/
Plant Extracts
/
Coumarins
/
Daphne
Limits:
Animals
Language:
Zh
Journal:
Zhongguo Zhong Yao Za Zhi
Journal subject:
FARMACOLOGIA
/
TERAPIAS COMPLEMENTARES
Year:
2017
Type:
Article
Affiliation country:
China