Evidence map›Paper›PMID 32078103›Full record

ArticleEuropean journal of drug metabolism and pharmacokinetics2020

Evaluation of the Role of P-glycoprotein (P-gp)-Mediated Efflux in the Intestinal Absorption of Common Substrates with Elacridar, a P-gp Inhibitor, in Rats.

Kei Suzuki, Kazuhiro Taniyama, Takao Aoyama, Yoshiaki Watanabe

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Article in European journal of drug metabolism and pharmacokinetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 44% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 7 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Kei SuzukiExploratory Research Section III, Exploratory Research Laboratories, Drug Research Department, TOA EIYO LTD., 1, Yuno-tanaka, Iizaka-machi, Fukushima-shi, Fukushima, 960-0280, Japan. suzuki.kei@toaeiyo.co.jp.ORCID http://orcid.org/0000-0003-3719-3478
Kazuhiro TaniyamaExploratory Research Section III, Exploratory Research Laboratories, Drug Research Department, TOA EIYO LTD., 1, Yuno-tanaka, Iizaka-machi, Fukushima-shi, Fukushima, 960-0280, Japan. taniyama.kazuhiro@toaeiyo.cco.jp.
Takao AoyamaFaculty of Pharmaceutical Science, Tokyo University of Science, Noda, Chiba, Japan.
Yoshiaki WatanabeExploratory Research Section III, Exploratory Research Laboratories, Drug Research Department, TOA EIYO LTD., 1, Yuno-tanaka, Iizaka-machi, Fukushima-shi, Fukushima, 960-0280, Japan.
TOA EIYO (Japan) · JPTokyo University of Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesP-glycoprotein (P-gp) has been shown previously to contribute to the intestinal absorption of verapamil, diltiazem, tacrolimus, colchicine and indinavir in situ; however, its contribution in vivo is unknown. The present study aimed to evaluate the in vivo involvement of P-gp using elacridar as its inhibitor to distinguish the contribution of P-gp from cytochrome P450 (CYP) 3A.

methodsFexofenadine (5 mg/kg) and buspirone (1 mg/kg) were used as probe substrates of P-gp and CYP3A, respectively. Each dual substrate (1 or 2 mg/kg) was orally administered to rats after elacridar pre-treatment (3 mg/kg). Additionally, verapamil, diltiazem or tacrolimus was orally co-administered with fexofenadine.

resultsElacridar drastically increased the area under the plasma concentration-time curve (AUC

conclusionsElacridar is useful for distinguishing the contribution of P-gp from CYP3A to the absorption of drugs in rats. The in vivo contribution of P-gp is minimal for high permeable compounds owing to their fraction absorbed of nearly 1.0.

Indexed as

Intestinal AbsorptionAcridinesAdministration, OralAnimalsArea Under CurveATP Binding Cassette Transporter, Subfamily B, Member 1Cytochrome P-450 CYP3ADrug InteractionsMalePharmaceutical PreparationsRatsRats, Sprague-DawleyTetrahydroisoquinolinesAcridinesATP Binding Cassette Transporter, Subfamily B, Member 1Cytochrome P-450 CYP3AElacridarPharmaceutical PreparationsTetrahydroisoquinolines

Identifiers

PMID32078103
OpenAlexW3007927631

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.