Influence of verapamil on the pharmacokinetics of oridonin in rats

Context: Oridonin has been traditionally used in Chinese treatment of various cancers, but its poor bioavailability limits its therapeutic uses. Verapamil can enhance the absorption of some drugs with poor oral bioavailability. Whether verapamil can enhance the bioavailability of oridonin is still u...

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Veröffentlicht in:Pharmaceutical biology 2019-01, Vol.57 (1), p.787-791
Hauptverfasser: Liu, Jing, Zhang, Ning, Li, Na, Fan, Xiaocheng, Li, Ying
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container_title Pharmaceutical biology
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creator Liu, Jing
Zhang, Ning
Li, Na
Fan, Xiaocheng
Li, Ying
description Context: Oridonin has been traditionally used in Chinese treatment of various cancers, but its poor bioavailability limits its therapeutic uses. Verapamil can enhance the absorption of some drugs with poor oral bioavailability. Whether verapamil can enhance the bioavailability of oridonin is still unclear. Objective: This study investigated the effect of verapamil on the pharmacokinetics of oridonin in rats and clarified its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of oridonin (20 mg/kg) in Sprague-Dawley rats with two groups of six animals each, with or without pre-treatment of verapamil (10 mg/kg/day for 7 days) were investigated. The effects of verapamil on the transport and metabolic stability of oridonin were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that verapamil could significantly increase the peak plasma concentration (from 146.9 ± 10.17 to 193.97 ± 10.53 ng/mL), and decrease the oral clearance (from 14.69 ± 4.42 to 8.09 ± 3.03 L/h/kg) of oridonin. The Caco-2 cell transwell experiments indicated that verapamil could decrease the efflux ratio of oridonin from 1.67 to 1.15, and the intrinsic clearance rate of oridonin was decreased by the pre-treatment with verapamil (40.06 ± 2.5 vs. 36.09 ± 3.7 µL/min/mg protein). Discussion and conclusions: These results indicated that verapamil could significantly change the pharmacokinetic profile of oridonin in rats, and it might exert these effects through increasing the absorption of oridonin by inhibiting the activity of P-gp, or through inhibiting the metabolism of oridonin in rat liver. In addition, the potential drug-drug interaction should be given special attention when verapamil is used with oridonin. Also, the dose of oridonin should be carefully selected in the clinic.
doi_str_mv 10.1080/13880209.2019.1688844
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Verapamil can enhance the absorption of some drugs with poor oral bioavailability. Whether verapamil can enhance the bioavailability of oridonin is still unclear. Objective: This study investigated the effect of verapamil on the pharmacokinetics of oridonin in rats and clarified its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of oridonin (20 mg/kg) in Sprague-Dawley rats with two groups of six animals each, with or without pre-treatment of verapamil (10 mg/kg/day for 7 days) were investigated. The effects of verapamil on the transport and metabolic stability of oridonin were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that verapamil could significantly increase the peak plasma concentration (from 146.9 ± 10.17 to 193.97 ± 10.53 ng/mL), and decrease the oral clearance (from 14.69 ± 4.42 to 8.09 ± 3.03 L/h/kg) of oridonin. The Caco-2 cell transwell experiments indicated that verapamil could decrease the efflux ratio of oridonin from 1.67 to 1.15, and the intrinsic clearance rate of oridonin was decreased by the pre-treatment with verapamil (40.06 ± 2.5 vs. 36.09 ± 3.7 µL/min/mg protein). Discussion and conclusions: These results indicated that verapamil could significantly change the pharmacokinetic profile of oridonin in rats, and it might exert these effects through increasing the absorption of oridonin by inhibiting the activity of P-gp, or through inhibiting the metabolism of oridonin in rat liver. In addition, the potential drug-drug interaction should be given special attention when verapamil is used with oridonin. Also, the dose of oridonin should be carefully selected in the clinic.</description><identifier>ISSN: 1388-0209</identifier><identifier>EISSN: 1744-5116</identifier><identifier>DOI: 10.1080/13880209.2019.1688844</identifier><identifier>PMID: 31747844</identifier><language>eng</language><publisher>England: Taylor &amp; Francis</publisher><subject>Administration, Oral ; Animals ; Bioavailability ; Biological Availability ; Caco-2 Cells ; Cancer ; Chinese medicine ; CYP3A4 ; Diterpenes, Kaurane - metabolism ; Diterpenes, Kaurane - pharmacokinetics ; Drug dosages ; Drug interaction ; Drug Interactions ; drug-drug interaction ; Experiments ; Humans ; Liver ; Metabolic Clearance Rate - drug effects ; Microsomes ; Microsomes, Liver - drug effects ; Oral administration ; P-gp ; Pharmacokinetics ; Plasma ; Rats ; Rats, Sprague-Dawley ; Rodents ; Verapamil ; Verapamil - blood ; Verapamil - pharmacology</subject><ispartof>Pharmaceutical biology, 2019-01, Vol.57 (1), p.787-791</ispartof><rights>2019 The Author(s). Published by Informa UK Limited, trading as Taylor &amp; Francis Group. 2019</rights><rights>2019 The Author(s). Published by Informa UK Limited, trading as Taylor &amp; Francis Group. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2019 The Author(s). Published by Informa UK Limited, trading as Taylor &amp; Francis Group. 2019 The Author(s)</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c562t-8022e8db5749716633366014a6de26184ddb95f317548da4a77e27e8f9b798c73</citedby><cites>FETCH-LOGICAL-c562t-8022e8db5749716633366014a6de26184ddb95f317548da4a77e27e8f9b798c73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882484/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882484/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,27502,27924,27925,53791,53793,59143,59144</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31747844$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Jing</creatorcontrib><creatorcontrib>Zhang, Ning</creatorcontrib><creatorcontrib>Li, Na</creatorcontrib><creatorcontrib>Fan, Xiaocheng</creatorcontrib><creatorcontrib>Li, Ying</creatorcontrib><title>Influence of verapamil on the pharmacokinetics of oridonin in rats</title><title>Pharmaceutical biology</title><addtitle>Pharm Biol</addtitle><description>Context: Oridonin has been traditionally used in Chinese treatment of various cancers, but its poor bioavailability limits its therapeutic uses. Verapamil can enhance the absorption of some drugs with poor oral bioavailability. Whether verapamil can enhance the bioavailability of oridonin is still unclear. Objective: This study investigated the effect of verapamil on the pharmacokinetics of oridonin in rats and clarified its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of oridonin (20 mg/kg) in Sprague-Dawley rats with two groups of six animals each, with or without pre-treatment of verapamil (10 mg/kg/day for 7 days) were investigated. The effects of verapamil on the transport and metabolic stability of oridonin were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that verapamil could significantly increase the peak plasma concentration (from 146.9 ± 10.17 to 193.97 ± 10.53 ng/mL), and decrease the oral clearance (from 14.69 ± 4.42 to 8.09 ± 3.03 L/h/kg) of oridonin. 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Medical Complete (Alumni)</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Genetics Abstracts</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Pharmaceutical biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Jing</au><au>Zhang, Ning</au><au>Li, Na</au><au>Fan, Xiaocheng</au><au>Li, Ying</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of verapamil on the pharmacokinetics of oridonin in rats</atitle><jtitle>Pharmaceutical biology</jtitle><addtitle>Pharm Biol</addtitle><date>2019-01-01</date><risdate>2019</risdate><volume>57</volume><issue>1</issue><spage>787</spage><epage>791</epage><pages>787-791</pages><issn>1388-0209</issn><eissn>1744-5116</eissn><abstract>Context: Oridonin has been traditionally used in Chinese treatment of various cancers, but its poor bioavailability limits its therapeutic uses. Verapamil can enhance the absorption of some drugs with poor oral bioavailability. Whether verapamil can enhance the bioavailability of oridonin is still unclear. Objective: This study investigated the effect of verapamil on the pharmacokinetics of oridonin in rats and clarified its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of oridonin (20 mg/kg) in Sprague-Dawley rats with two groups of six animals each, with or without pre-treatment of verapamil (10 mg/kg/day for 7 days) were investigated. The effects of verapamil on the transport and metabolic stability of oridonin were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that verapamil could significantly increase the peak plasma concentration (from 146.9 ± 10.17 to 193.97 ± 10.53 ng/mL), and decrease the oral clearance (from 14.69 ± 4.42 to 8.09 ± 3.03 L/h/kg) of oridonin. The Caco-2 cell transwell experiments indicated that verapamil could decrease the efflux ratio of oridonin from 1.67 to 1.15, and the intrinsic clearance rate of oridonin was decreased by the pre-treatment with verapamil (40.06 ± 2.5 vs. 36.09 ± 3.7 µL/min/mg protein). Discussion and conclusions: These results indicated that verapamil could significantly change the pharmacokinetic profile of oridonin in rats, and it might exert these effects through increasing the absorption of oridonin by inhibiting the activity of P-gp, or through inhibiting the metabolism of oridonin in rat liver. In addition, the potential drug-drug interaction should be given special attention when verapamil is used with oridonin. Also, the dose of oridonin should be carefully selected in the clinic.</abstract><cop>England</cop><pub>Taylor &amp; Francis</pub><pmid>31747844</pmid><doi>10.1080/13880209.2019.1688844</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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subjects Administration, Oral
Animals
Bioavailability
Biological Availability
Caco-2 Cells
Cancer
Chinese medicine
CYP3A4
Diterpenes, Kaurane - metabolism
Diterpenes, Kaurane - pharmacokinetics
Drug dosages
Drug interaction
Drug Interactions
drug-drug interaction
Experiments
Humans
Liver
Metabolic Clearance Rate - drug effects
Microsomes
Microsomes, Liver - drug effects
Oral administration
P-gp
Pharmacokinetics
Plasma
Rats
Rats, Sprague-Dawley
Rodents
Verapamil
Verapamil - blood
Verapamil - pharmacology
title Influence of verapamil on the pharmacokinetics of oridonin in rats
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