Effects of puerarin on the pharmacokinetics of triptolide in rats

Context: Puerarin and triptolide are sometimes used together for the treatment of disease in Chinese clinics; however, the drug–drug interaction between puerarin and triptolide is still unknown. Objective: This study investigates the effects of puerarin on the pharmacokinetics of triptolide in rats...

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Autores principales: Qingfa Wang, Yanping Wu, Fengting Xiang, Yan Feng, Zhenghao Li, Yufeng Ding
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Lenguaje:EN
Publicado: Taylor & Francis Group 2019
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spelling oai:doaj.org-article:e5f3d490926b42039ec13101186d9bf02021-11-17T14:21:56ZEffects of puerarin on the pharmacokinetics of triptolide in rats1388-02091744-511610.1080/13880209.2019.1626448https://doaj.org/article/e5f3d490926b42039ec13101186d9bf02019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/13880209.2019.1626448https://doaj.org/toc/1388-0209https://doaj.org/toc/1744-5116Context: Puerarin and triptolide are sometimes used together for the treatment of disease in Chinese clinics; however, the drug–drug interaction between puerarin and triptolide is still unknown. Objective: This study investigates the effects of puerarin on the pharmacokinetics of triptolide in rats and clarifies its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of triptolide (1 mg/kg) in Sprague-Dawley rats with (test group, n = 6) or without pretreatment (control group, n = 6) with puerarin (100 mg/kg/day for seven days) were investigated. The effects of puerarin on the transport and metabolic stability of triptolide were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that puerarin could significantly increase the peak plasma concentration (from 187.25 ± 15.36 to 219.67 ± 21.52 ng/mL), and decrease its oral clearance (from 4.92 ± 0.35 to 62.46 ± 3.75 ± 0.19 L/h/kg). The Caco-2 cell transwell experiments indicated that puerarin could decrease the efflux ratio of triptolide from 2.70 to 1.33, and the intrinsic clearance rate of triptolide was decreased by the pretreatment with puerarin (38.8 ± 4.7 vs. 32.9 ± 6.5 μL/min/mg protein). Discussion and conclusions: Puerarin could significantly change the pharmacokinetic profiles of triptolide in rats, and it might exert these effects through increasing the absorption of triptolide by inhibiting the activity of P-gp, or through inhibiting the metabolism of triptolide in rat liver. The results also showed that the dose of triptolide should be decreased when these drugs were co-administered.Qingfa WangYanping WuFengting XiangYan FengZhenghao LiYufeng DingTaylor & Francis Grouparticlecaco-2 cellsp-gpmetabolismTherapeutics. PharmacologyRM1-950ENPharmaceutical Biology, Vol 57, Iss 1, Pp 407-411 (2019)
institution DOAJ
collection DOAJ
language EN
topic caco-2 cells
p-gp
metabolism
Therapeutics. Pharmacology
RM1-950
spellingShingle caco-2 cells
p-gp
metabolism
Therapeutics. Pharmacology
RM1-950
Qingfa Wang
Yanping Wu
Fengting Xiang
Yan Feng
Zhenghao Li
Yufeng Ding
Effects of puerarin on the pharmacokinetics of triptolide in rats
description Context: Puerarin and triptolide are sometimes used together for the treatment of disease in Chinese clinics; however, the drug–drug interaction between puerarin and triptolide is still unknown. Objective: This study investigates the effects of puerarin on the pharmacokinetics of triptolide in rats and clarifies its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of triptolide (1 mg/kg) in Sprague-Dawley rats with (test group, n = 6) or without pretreatment (control group, n = 6) with puerarin (100 mg/kg/day for seven days) were investigated. The effects of puerarin on the transport and metabolic stability of triptolide were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that puerarin could significantly increase the peak plasma concentration (from 187.25 ± 15.36 to 219.67 ± 21.52 ng/mL), and decrease its oral clearance (from 4.92 ± 0.35 to 62.46 ± 3.75 ± 0.19 L/h/kg). The Caco-2 cell transwell experiments indicated that puerarin could decrease the efflux ratio of triptolide from 2.70 to 1.33, and the intrinsic clearance rate of triptolide was decreased by the pretreatment with puerarin (38.8 ± 4.7 vs. 32.9 ± 6.5 μL/min/mg protein). Discussion and conclusions: Puerarin could significantly change the pharmacokinetic profiles of triptolide in rats, and it might exert these effects through increasing the absorption of triptolide by inhibiting the activity of P-gp, or through inhibiting the metabolism of triptolide in rat liver. The results also showed that the dose of triptolide should be decreased when these drugs were co-administered.
format article
author Qingfa Wang
Yanping Wu
Fengting Xiang
Yan Feng
Zhenghao Li
Yufeng Ding
author_facet Qingfa Wang
Yanping Wu
Fengting Xiang
Yan Feng
Zhenghao Li
Yufeng Ding
author_sort Qingfa Wang
title Effects of puerarin on the pharmacokinetics of triptolide in rats
title_short Effects of puerarin on the pharmacokinetics of triptolide in rats
title_full Effects of puerarin on the pharmacokinetics of triptolide in rats
title_fullStr Effects of puerarin on the pharmacokinetics of triptolide in rats
title_full_unstemmed Effects of puerarin on the pharmacokinetics of triptolide in rats
title_sort effects of puerarin on the pharmacokinetics of triptolide in rats
publisher Taylor & Francis Group
publishDate 2019
url https://doaj.org/article/e5f3d490926b42039ec13101186d9bf0
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AT fengtingxiang effectsofpuerarinonthepharmacokineticsoftriptolideinrats
AT yanfeng effectsofpuerarinonthepharmacokineticsoftriptolideinrats
AT zhenghaoli effectsofpuerarinonthepharmacokineticsoftriptolideinrats
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