Evidence map›Paper›PMID 15542525›Full record

ArticleGut2004

Bile secretory function in the obese Zucker rat: evidence of cholestasis and altered canalicular transport function.

M Pizarro, N Balasubramaniyan, N Solís, A Solar, I Duarte, J F Miquel, F J Suchy, M Trauner, L Accatino, M Ananthanarayanan and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
1.8field-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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Predictive and Diagnostic Value of Serum Adipokines in Pregnant Women with Intrahepatic Cholestasis.International journal of environmental research and public health · 2022
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Effects of Anthocyanin Extracts from Bilberry (Journal of agricultural and food chemistry · 2020
    Article
  17. Gut microbiota in non-alcoholic fatty liver disease and alcohol-related liver disease: Current concepts and perspectives.Hepatology research : the official journal of the Japan Society of Hepatology · 2020
    Review
  18. Triggering and resolution of inflammation in NASH.Nature reviews. Gastroenterology & hepatology · 2018
    Review
  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

11 authors at 1 institution in 1 country.

M PizarroDepartmento de Gastroenterología, Pontificia Universidad Católica de Chile, Santiago 833-0024, Chile.
N Balasubramaniyan
N Solís
A Solar
I Duarte
J F Miquel
F J Suchy
M Trauner
L Accatino
M Ananthanarayanan
M Arrese
Pontificia Universidad Católica de Chile · CL

Funding

ONTOGENY OF HEPATIC ION TRANSPORTR37HD020632 · NICHD · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI SUCHY, FREDERICK J · 1998 to 2007
$3.7M
ONTOGENY OF HEPATIC ION TRANSPORTR01HD020632 · NICHD · YALE UNIVERSITY · PI SUCHY, FREDERICK J · 1985 to 1997
–
NICHD NIH HHS HD20632NICHD NIH HHS R37 HD020632
6 · The paper itself

Abstract

backgroundObese Zucker rats (ZR) have been used as an experimental model for non-alcoholic fatty liver disease and are particularly susceptible to various types of liver injury. Bile secretory function has not been assessed in ZR.

aimTo study bile secretion and expression of the main hepatobiliary transporters in ZR.

methodsBile flow and biliary secretion of lipids and glutathione were determined in eight and 14 week old obese ZR and their lean controls. Protein mass and mRNA of the Na(+)/taurocholate cotransporting polypeptide (Ntcp), the bile salt export pump (Bsep), and the multidrug resistant associated protein 2 (Mrp2) were assessed by western and northern blot, respectively. The effects of administration of a tumour necrosis factor alpha inactivator (etanercept) and an insulin sensitiser (rosiglitazone) were assessed in obese ZR while leptin was given to non-obese rats to study its effect on Mrp2 expression.

resultsZR exhibited increased body weight and hyperlipidaemia. Only 14 week old obese ZR has fatty liver. Decreased bile flow and biliary lipid and glutathione secretion as well as reduced hepatic transport of both taurocholate and bromosulphthalein were found in obese ZR. Hepatic Mrp2 protein mass was markedly reduced (-70%) in obese rats while Ntcp and Bsep protein levels were similar to lean rats. Downregulation of Mrp2 seems to involve both transcriptional and post-transcriptional mechanisms probably related to insulin and leptin resistance.

conclusionsObese ZR exhibit an impaired bile secretory function with significant functional and molecular alterations consistent with mild cholestasis. A defective hepatobiliary transport capacity may be a contributory factor in rendering the obese ZR more susceptible to liver injury.

Indexed as

AnimalsATP-Binding Cassette, Sub-Family C ProteinsBileBile CanaliculiBiological Transport, ActiveBody WeightCholestasisDown-RegulationLiverMaleMembrane Transport ProteinsMultidrug Resistance-Associated Protein 2ObesityOrgan SizeRatsRats, ZuckerATP-Binding Cassette, Sub-Family C ProteinsMembrane Transport ProteinsMultidrug Resistance-Associated Protein 2RNA, Messenger

Identifiers

PMID15542525
PMCPMC1774316
OpenAlexW2107585493

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.