Evidence map›Paper›PMID 25419825›Full record

ArticlePloS one2014

Alveolar type II epithelial cell dysfunction in rat experimental hepatopulmonary syndrome (HPS).

Wenli Yang, Bingqian Hu, Wei Wu, Sachin Batra, Michael R Blackburn, Joseph L Alcorn, Michael B Fallon, Junlan Zhang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-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

14 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Hepatopulmonary syndrome.JHEP reports : innovation in hepatology · 2022
    Review
  6. Review
  7. Regulation of Macrophage Foam Cell Formation During Nitrogen Mustard (NM)-Induced Pulmonary Fibrosis by Lung Lipids.Toxicological sciences : an official journal of the Society of Toxicology · 2019
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. 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

8 authors at 1 institution in 1 country.

Wenli YangDivision of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Bingqian HuDivision of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Wei WuDivision of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Sachin BatraDivision of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Michael R BlackburnDepartment of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Joseph L AlcornDivision of Neonatology, Department of Pediatrics, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Michael B FallonDivision of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
Junlan ZhangDivision of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
The University of Texas Health Science Center at Houston · US

Funding

MEDIATORS OF PULMONARY VASODILATATION IN LIVER DISEASER01DK056804 · NIDDK · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI FALLON, MICHAEL B · 2000 to 2013
$3.6M
NIDDK NIH HHS R01 DK056804PHS HHS 5DKR01DK056804
6 · The paper itself

Abstract

The hepatopulmonary syndrome (HPS) develops when pulmonary vasodilatation leads to abnormal gas exchange. However, in human HPS, restrictive ventilatory defects are also observed supporting that the alveolar epithelial compartment may also be affected. Alveolar type II epithelial cells (AT2) play a critical role in maintaining the alveolar compartment by producing four surfactant proteins (SPs, SP-A, SP-B, SP-C and SP-D) which also facilitate alveolar repair following injury. However, no studies have evaluated the alveolar epithelial compartment in experimental HPS. In this study, we evaluated the alveolar epithelial compartment and particularly AT2 cells in experimental HPS induced by common bile duct ligation (CBDL). We found a significant reduction in pulmonary SP production associated with increased apoptosis in AT2 cells after CBDL relative to controls. Lung morphology showed decreased mean alveolar chord length and lung volumes in CBDL animals that were not seen in control models supporting a selective reduction of alveolar airspace. Furthermore, we found that administration of TNF-α, the bile acid, chenodeoxycholic acid, and FXR nuclear receptor activation (GW4064) induced apoptosis and impaired SP-B and SP-C production in alveolar epithelial cells in vitro. These results imply that AT2 cell dysfunction occurs in experimental HPS and is associated with alterations in the alveolar epithelial compartment. Our findings support a novel contributing mechanism in experimental HPS that may be relevant to humans and a potential therapeutic target.

Indexed as

AnimalsApoptosisBile Acids and SaltsBlotting, WesternCell LineChenodeoxycholic AcidCommon Bile DuctEpithelial CellsGene ExpressionHepatopulmonary SyndromeIsoxazolesMaleMicroscopy, FluorescencePulmonary AlveoliPulmonary Surfactant-Associated ProteinsRats, Sprague-DawleyBile Acids and SaltsChenodeoxycholic AcidGW 4064IsoxazolesPulmonary Surfactant-Associated ProteinsTumor Necrosis Factor-alpha

Identifiers

PMID25419825
PMCPMC4242631
OpenAlexW2012655577

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.