Evidence map›Paper›PMID 28971610›Full record

ArticlePharmacology research & perspectives2017

Mechanistic in vitro studies confirm that inhibition of the renal apical efflux transporter multidrug and toxin extrusion (MATE) 1, and not altered absorption, underlies the increased metformin exposure observed in clinical interactions with cimetidine, trimethoprim or pyrimethamine.

Robert Elsby, Stephen Chidlaw, Samuel Outteridge, Sarah Pickering, Amy Radcliffe, Rebecca Sullivan, Hayley Jones, Philip Butler

Open access · goldAbstract read
In one paragraph

Article in Pharmacology research & perspectives, 2017. 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
1.6field-weighted citation impact, top 14% 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, 47 citations in OpenAlex.

  1. Review
  2. Article
  3. Substrate-specific inhibition of organic cation transporter 1 revealed using a multisubstrate drug cocktail.Drug metabolism and disposition: the biological fate of chemicals · 2025
    Article
  4. IsMetabolites · 2025
    Article
  5. Article
  6. Article
  7. Imeglimin: A Clinical Pharmacology Review.Clinical pharmacokinetics · 2023
    Review
  8. Substrate-DependentInternational journal of molecular sciences · 2021
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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.

Robert ElsbyDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.ORCID 0000-0003-3199-3327
Stephen ChidlawDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
Samuel OutteridgeDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
Sarah PickeringDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
Amy RadcliffeDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
Rebecca SullivanDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
Hayley JonesDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
Philip ButlerDrug Transporter Sciences, Cyprotex Discovery Ltd (an Evotec company), No 24 Mereside, Alderley Park, Macclesfield, Cheshire, United Kingdom.
C4X Discovery (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metformin is a common co-medication for many diseases and the victim of clinical drug-drug interactions (DDIs) perpetrated by cimetidine, trimethoprim and pyrimethamine, resulting in decreased active renal clearance due to inhibition of organic cation transport proteins and increased plasma exposure of metformin. To understand whether area under the plasma concentration-time curve (AUC) increases relate to absorption, in vitro inhibitory potencies of these drugs against metformin transport by human organic cation transporter (OCT) 1, and the apical to basolateral absorptive permeability of metformin across Caco-2 cells in the presence of therapeutic intestinal concentrations of cimetidine, trimethoprim or pyrimethamine, were determined. Whilst all inhibited OCT1, none enhanced metformin's absorptive permeability (~0.5 × 10

Indexed as

Area Under CurveCaco-2 CellsCimetidineDrug InteractionsGene Expression RegulationHumansIn Vitro TechniquesMetforminOctamer Transcription Factor-1Organic Cation Transport ProteinsPyrimethamineTrimethoprimCimetidineMetforminOctamer Transcription Factor-1Organic Cation Transport ProteinsPyrimethamineSLC47A1 protein, humanTrimethoprimDrug-drug interactionMATE1metforminOCT2pharmacokinetics

Identifiers

PMID28971610
PMCPMC5625161
OpenAlexW2759481338

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.