Evidence map›Paper›PMID 10903978›Full record

ArticleBritish journal of pharmacology2000

Effect of furanocoumarin derivatives in grapefruit juice on the uptake of vinblastine by Caco-2 cells and on the activity of cytochrome P450 3A4.

A Ohnishi, H Matsuo, S Yamada, H Takanaga, S Morimoto, Y Shoyama, H Ohtani, Y Sawada

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 156 citations in OpenAlex.

  1. Trial
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  3. Trial
  4. Review
  5. Effect ofFrontiers in pharmacology · 2024
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  6. Recommendations on the use of azole antifungals in hematology-oncology patients.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2023
    Review
  7. Article
  8. Pharmaceutical Excipients and Drug Metabolism: A Mini-Review.International journal of molecular sciences · 2020
    Review
  9. Article
  10. Review
  11. Article
  12. The Multifarious Link between Cytochrome P450s and Cancer.Oxidative medicine and cellular longevity · 2020
    Review
  13. Review
  14. Article
  15. Review
  16. Extracts of Immature OrangeFrontiers in pharmacology · 2017
    Article
  17. Review
  18. Article
  19. Article
  20. The effect of grapefruit juice on drug disposition.Expert opinion on drug metabolism & toxicology · 2011
    Review
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

8 authors at 1 institution in 1 country.

A OhnishiDepartment of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.
H Matsuo
S Yamada
H Takanaga
S Morimoto
Y Shoyama
H Ohtani
Y Sawada
Kyushu University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. The presence of inhibitors of drug efflux transporters, such as P-glycoprotein (P-gp), in grapefruit juice (GFJ) was confirmed based on the uptake of [(3)H]-vinblastine (VBL) by Caco-2 cells. 2. The uptake of [(3)H]-VBL by Caco-2 cells was significantly increased by the ethyl acetate extract of GFJ as well as by cyclosporin A. The extract was separated on a Cosmosil column and the eluate with 60% methanol increased [(3)H]-VBL uptake, while the activity to inhibit CYP3A4 was greatest in the 70 and 80% eluates. 3. These results show that the major inhibitor of efflux transport of VBL is different from that of CYP3A4. 4. Further separation of the 60% methanol eluate afforded dihydroxybergamottin (DHBG). Both ethyl acetate extract of GFJ and DHBG increased steady-state [(3)H]-VBL uptake by LLC-GA5-COL300 cells. Besides DHBG, other furanocoumarins contained in GFJ, such as bergamottin, FC726, bergaptol and bergapten, increased the steady-state uptake of [(3)H]-VBL by Caco-2 cells. 5. The order of inhibitory potency of these compounds was FC726>DHBG>bergamottin>bergapten>bergaptol . While, the IC(50) values for inhibition of CYP3A4 were 0.075, 0.45, 1.0, 1.0 and >20 microM, respectively. Bergaptol specifically inhibited VBL efflux. 6. DHBG was thus identified as a candidate for inhibitors of VBL transport, together with other furanocoumarins. Moreover, partly involvement of the P-gp inhibition was suggested. 7. Therefore, the inhibition of efflux transport of drugs as well as of drug metabolism by CYP3A4 could be an important cause of drug-GFJ interaction.

Indexed as

Cytochrome P-450 Enzyme Inhibitors3-O-Methylglucose5-MethoxypsoralenAcetatesAnimalsATP Binding Cassette Transporter, Subfamily B, Member 1Caco-2 CellsCarbon RadioisotopesCell LineCell Line, TransformedCitrusCoumarinsCyclosporineCytochrome P-450 CYP3ACytochrome P-450 Enzyme SystemDose-Response Relationship, Drug3-O-Methylglucose5-Methoxypsoralen6',7'-dihydroxybergamottinAcetatesATP Binding Cassette Transporter, Subfamily B, Member 1bergamottinbergaptolCarbon RadioisotopesCoumarinsCyclosporineCYP3A4 protein, humanCYP3A protein, humanCytochrome P-450 CYP3ACytochrome P-450 Enzyme InhibitorsCytochrome P-450 Enzyme Systemethyl acetateFurocoumarinsMethoxsalenMixed Function OxygenasesPhenylalaninePlant ExtractsRecombinant ProteinsTestosteroneTritiumVinblastine

Identifiers

PMID10903978
PMCPMC1572193
OpenAlexW1994301337

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.