Evidence map›Paper›PMID 20177056›Full record

ArticleThe Journal of biological chemistry2010

Inhibition of Na+-taurocholate Co-transporting polypeptide-mediated bile acid transport by cholestatic sulfated progesterone metabolites.

Shadi Abu-Hayyeh, Pablo Martinez-Becerra, Siti H Sheikh Abdul Kadir, Clare Selden, Marta R Romero, Myrddin Rees, Hanns-Ulrich Marschall, Jose J G Marin, Catherine Williamson

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Review
  3. A RareJournal of clinical medicine · 2025
    Article
  4. Intrahepatic cholestasis of pregnancy.Nature reviews. Disease primers · 2025
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Nuclear Receptors in Pregnancy and Outcomes: Clinical Perspective.Advances in experimental medicine and biology · 2022
    Article
  13. Review
  14. Review
  15. Review
  16. Differential regulation of intestinal efflux transporters by pregnancy in mice.Xenobiotica; the fate of foreign compounds in biological systems · 2017
    Article
  17. NTCP deficiency and persistently raised bile salts: an adult case.Journal of inherited metabolic disease · 2017
    Article
  18. Article
  19. Article
  20. 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

9 authors at 5 institutions in 3 countries.

Shadi Abu-HayyehInstitute for Reproductive and Developmental Biology, Imperial College London, London W12 0NN, United Kingdom.
Pablo Martinez-Becerra
Siti H Sheikh Abdul Kadir
Clare Selden
Marta R Romero
Myrddin Rees
Hanns-Ulrich Marschall
Jose J G Marin
Catherine Williamson
Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas · ESImperial College London · GBKarolinska Institutet · SENational Health Service · GBUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sulfated progesterone metabolite (P4-S) levels are raised in normal pregnancy and elevated further in intrahepatic cholestasis of pregnancy (ICP), a bile acid-liver disorder of pregnancy. ICP can be complicated by preterm labor and intrauterine death. The impact of P4-S on bile acid uptake was studied using two experimental models of hepatic uptake of bile acids, namely cultured primary human hepatocytes (PHH) and Na(+)-taurocholate co-transporting polypeptide (NTCP)-expressing Xenopus laevis oocytes. Two P4-S compounds, allopregnanolone-sulfate (PM4-S) and epiallopregnanolone-sulfate (PM5-S), reduced [(3)H]taurocholate (TC) uptake in a dose-dependent manner in PHH, with both Na(+)-dependent and -independent bile acid uptake systems significantly inhibited. PM5-S-mediated inhibition of TC uptake could be reversed by increasing the TC concentration against a fixed PM5-S dose indicating competitive inhibition. Experiments using NTCP-expressing Xenopus oocytes confirmed that PM4-S/PM5-S are capable of competitively inhibiting NTCP-mediated uptake of [(3)H]TC. Total serum PM4-S + PM5-S levels were measured in non-pregnant and third trimester pregnant women using liquid chromatography-electrospray tandem mass spectrometry and were increased in pregnant women, at levels capable of inhibiting TC uptake. In conclusion, pregnancy levels of P4-S can inhibit Na(+)-dependent and -independent influx of taurocholate in PHH and cause competitive inhibition of NTCP-mediated uptake of taurocholate in Xenopus oocytes.

Indexed as

AnimalsBile Acids and SaltsBinding, CompetitiveCell Line, TumorCholestasisCobaltDose-Response Relationship, DrugFemaleHepatocytesHumansModels, BiologicalOocytesPeptidesPregnancyProgesteroneSodiumBile Acids and SaltsCobaltPeptidesProgesteroneSodiumSteroidsTaurocholic Acid

Identifiers

PMID20177056
PMCPMC2878045
OpenAlexW2021575753

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.