Evidence map›Paper›PMID 11796340›Full record

ArticleAntimicrobial agents and chemotherapy2002

Involvement of multidrug resistance-associated protein 2 in intestinal secretion of grepafloxacin in rats.

Kazumasa Naruhashi, Ikumi Tamai, Natsuko Inoue, Hiromi Muraoka, Yoshimichi Sai, Nagao Suzuki, Akira Tsuji

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 76 citations in OpenAlex.

  1. Review
  2. Article
  3. Renal Drug Transporters and Drug Interactions.Clinical pharmacokinetics · 2017
    Review
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  6. Review
  7. Review
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  13. MDR- and CYP3A4-mediated drug-drug interactions.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2006
    Review
  14. Article
  15. Article
  16. Article
  17. Article
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

7 authors at 2 institutions in 1 country.

Kazumasa NaruhashiFaculty of Pharmaceutical Sciences Kanazawa University, Kanazawa 920-0934. CREST, Japan.
Ikumi Tamai
Natsuko Inoue
Hiromi Muraoka
Yoshimichi Sai
Nagao Suzuki
Akira Tsuji
Kanazawa University · JPJapan Science and Technology Agency · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the contribution of multidrug resistance-associated protein 2 (MRP2) to the secretory transport of grepafloxacin and compared its functional role with that of P-glycoprotein (P-gp) by using Sprague-Dawley rats (SDRs) and Eisai hyperbilirubinemic rats (EHBRs), in which MRP2 is hereditarily defective. In intestinal tissue from SDRs mounted in Ussing chambers, the level of transport in the direction from the serosal layer to the mucosal layer was twofold greater than that in the direction from the mucosal layer to the serosal layer. This secretory transport of grepafloxacin was diminished by both probenecid, an MRP2 inhibitor, and cyclosporine, a P-gp inhibitor. In intestinal tissue from EHBRs, the secretory transport of grepafloxacin was lower than that in intestinal tissue from SDRs and was inhibited by cyclosporine but not by probenecid. The absorption of grepafloxacin from intestinal loops in SDRs was in the order of duodenum > jejunum > ileum and was increased by cyclosporine but not by probenecid. The absorption in EHBRs was not higher than that in SDRs. The intestinal secretory clearance in SDRs after intravenous administration of grepafloxacin was shown to be greater for the ileum than for the duodenum, which is in good agreement with the previously reported regional expression profile of MRP2 mRNA. The intestinal secretory clearance was lower in EHBRs than in SDRs. Accordingly, in addition to P-gp, MRP2 might play a role in the secretory transport of grepafloxacin. The function of MRP2 in facilitating grepafloxacin transport in the secretory direction is more pronounced both in vitro and in vivo, while the restriction of entry from the lumen into the cell by MRP2 seems to be negligible, compared with that by P-gp, in the case of grepafloxacin.

Indexed as

FluoroquinolonesMembrane Transport ProteinsAnimalsAnti-Infective AgentsATP-Binding Cassette, Sub-Family C ProteinsBiliary TractDrug Resistance, MultipleIntestinal AbsorptionIntestine, SmallIn Vitro TechniquesMultidrug Resistance-Associated Protein 2PiperazinesRatsRats, Sprague-DawleyAnti-Infective AgentsATP-Binding Cassette, Sub-Family C ProteinsFluoroquinolonesgrepafloxacinMembrane Transport ProteinsMultidrug Resistance-Associated Protein 2Piperazines

Identifiers

PMID11796340
PMCPMC127023
OpenAlexW1972056241

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.