Pharmacokinetics and tissue distribution of crotonoside |
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| Authors: | Peiao Yan Lan Zhang |
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| Affiliation: | 1. Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, China,;2. The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, Chengdu, China, and;3. Key Laboratory of Systematic Research, Development and Utilization of Chinese Medicine Resources in Sichuan Province—Key Laboratory Breeding Base of Co-founded by Sichuan Province and MOST, Chengdu, China |
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| Abstract: | 1.?Crotonoside is a bioactive ingredient from Croton Herba with a strong antitumour activity. This study aimed to develop a highly sensitive and selective high-performance liquid chromatography (HPLC) method to quantify crotonoside in biological samples for pharmacokinetics and distribution studies.2.?Protein precipitation by perchloric acid was used to separate crotonoside from the biological samples, and the recovery rates for crotonoside and the internal standard (luteoloside) were >80%. All calibration curves examining the crotonoside levels in plasma and tissues were linear (all correlation coefficients >?0.99).3.?The response to crotonoside appeared to be dose disproportional to the maximum plasma concentration and the area under the time–concentration curve in plasma over the range of 12.5–50.0?mg/kg, and crotonoside was highly distributed in tissues after intravenous administration. The highest crotonoside level was detected in the liver (28.79?±?14.96?μg/g), whereas crotonoside was undetected in the brain. |
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| Keywords: | Crotonoside HPLC pharmacokinetics tissue distribution |
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