Evidence map›Paper›PMID 15595924›Full record

ArticleThe Biochemical journal2005

Pregnenolone-16alpha-carbonitrile inhibits rodent liver fibrogenesis via PXR (pregnane X receptor)-dependent and PXR-independent mechanisms.

Carylyn J Marek, Steven J Tucker, Dimitrios K Konstantinou, Lucy J Elrick, Dee Haefner, Charalambos Sigalas, Graeme I Murray, Bryan Goodwin, Matthew C Wright

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

46 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Potential for cardiac toxicity with methylimidazolium ionic liquids.Ecotoxicology and environmental safety · 2023
    Article
  6. Pregnane X Receptor and the Gut-Liver Axis: A Recent Update.Drug metabolism and disposition: the biological fate of chemicals · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Environmental Xenoestrogens Super-Activate a Variant Murine ER Beta in Cholangiocytes.Toxicological sciences : an official journal of the Society of Toxicology · 2017
    Article
  19. Review
  20. 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

9 authors at 2 institutions in 2 countries.

Carylyn J MarekSchool of Medical Sciences, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
Steven J Tucker
Dimitrios K Konstantinou
Lucy J Elrick
Dee Haefner
Charalambos Sigalas
Graeme I Murray
Bryan Goodwin
Matthew C Wright
University of Aberdeen · GBResearch Triangle Park Foundation · US

Funding

Wellcome Trust 068879
6 · The paper itself

Abstract

The effect of liver growth stimulation [using the rodent PXR (pregnane X receptor) activator PCN (pregnenolone-16alpha-carbonitrile)] in rats chronically treated with carbon tetrachloride to cause repeated hepatocyte necrosis and liver fibrogenesis was examined. PCN did not inhibit the hepatotoxicity of carbon tetrachloride. However, transdifferentiation of hepatic stellate cells and the extent of fibrosis caused by carbon tetrachloride treatment was significantly inhibited by PCN in vivo. In vitro, PCN directly inhibited hepatic stellate cell transdifferentiation to a profibrogenic phenotype, although the cells did not express the PXR (in contrast with hepatocytes), suggesting that PCN acts independently of the PXR. Mice with a functionally disrupted PXR gene (PXR-/-) did not respond to the antifibrogenic effects of PCN, in contrast with wild-type (PXR+/+) mice, demonstrating an antifibrogenic role for the PXR in vivo. However, PCN inhibited the transdifferentiation of PXR-/--derived mouse hepatic stellate cells in vitro, confirming that there is also a PXR-independent antifibrogenic effect of PCN through a direct interaction with hepatic stellate cells. These data suggest that the PXR is antifibrogenic in rodents in vivo and that a PXR-independent target for PXR activators exists in hepatic stellate cells that also functions to inhibit fibrosis.

Indexed as

AnimalsCarbon TetrachlorideHepatocytesLiver CirrhosisMaleMiceMice, KnockoutPregnane X ReceptorPregnenolone CarbonitrileRatsRats, Sprague-DawleyReceptors, Cytoplasmic and NuclearReceptors, SteroidCarbon TetrachloridePregnane X ReceptorPregnenolone CarbonitrileReceptors, Cytoplasmic and NuclearReceptors, Steroid

Identifiers

PMID15595924
PMCPMC1134989
OpenAlexW2081670575

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.