Evidence map›Paper›PMID 28331445›Full record

ArticleOchsner journal2017

Negligible Oval Cell Proliferation Following Ischemia-Reperfusion Injury With and Without Partial Hepatectomy.

Ek Khoon Tan, Maureen Shuh, Heather Francois-Vaughan, Jennifer A Sanders, Ari J Cohen

Open access · greenAbstract read
In one paragraph

Article in Ochsner journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Ek Khoon TanInstitute of Translational Research, Ochsner Clinic Foundation, New Orleans, LA ; Department of General Surgery, Singapore General Hospital, Singapore.
Maureen ShuhInstitute of Translational Research, Ochsner Clinic Foundation, New Orleans, LA.
Heather Francois-VaughanDepartment of Pediatrics, Rhode Island Hospital and Brown University, Providence, RI.
Jennifer A SandersDepartment of Pediatrics, Rhode Island Hospital and Brown University, Providence, RI ; Department of Pathology and Laboratory Medicine, Rhode Island Hospital and Brown University, Providence, RI.
Ari J CohenInstitute of Translational Research, Ochsner Clinic Foundation, New Orleans, LA ; Multi-Organ Transplant Institute, Ochsner Clinic Foundation, New Orleans, LA ; The University of Queensland School of Medicine, Ochsner Clinical School, New Orleans, LA.
Ochsner Medical Center · USRhode Island Hospital · US

Funding

REGULATION OF FETAL HEPATIC GROWTHR01HD024455 · NICHD · RHODE ISLAND HOSPITAL (PROVIDENCE, RI) · PI GRUPPUSO, PHILIP A. · 1989 to 2022
$7.9M
The Fetal Hepatocyte Phenotype and Cell-Based Therapy for Liver DiseaseR01DK100301 · NIDDK · RHODE ISLAND HOSPITAL · PI GRUPPUSO, PHILIP A., SANDERS, JENNIFER A · 2014 to 2017
$1.4M
NICHD NIH HHS R01 HD024455NIDDK NIH HHS R01 DK100301
6 · The paper itself

Abstract

backgroundHepatic oval cells proliferate to replace hepatocytes and restore liver function when hepatocyte proliferation is compromised or inadequate. Exposure to chemical carcinogens, severe liver steatosis, and partial hepatectomy has been used in animal models to demonstrate the role of oval cells in liver regeneration. Ischemia-reperfusion injury (IRI) causes hepatocellular damage and death in the absence of confounding chemical toxicity; however, oval cell induction by IRI has not been demonstrated in vivo. We examine oval cell induction following partial IRI.

methodsWistar rats were subjected to 2 IRI protocols: 70% warm liver ischemia for 30 minutes followed by reperfusion or 70% warm liver ischemia for 30 minutes with partial hepatectomy of the nonischemic lobes followed by reperfusion. Liver injury was monitored by serum alanine aminotransferase (ALT) at 1 day and 7 days of reperfusion. Oval cell proliferation was monitored by indirect immunofluorescence staining using the surface markers BD.2 and Thy-1. Cellular proliferation was quantified by 5-ethynyl-2'-deoxyuridine (EdU) incorporation in vivo.

resultsSerum ALT elevation was only observed at the 1-day time point in the IRI with partial hepatectomy model. Oval cell marker expression was restricted to the biliary structures in both the ischemic and the nonischemic control lobes. Oval cell induction, measured by changes in the frequency of BD.2 and Thy-1 expression and EdU incorporation, was not significantly altered by IRI.

conclusionIn both mild and moderate IRI models, we did not find evidence of oval cell induction or proliferation. EdU staining was restricted to hepatocytes, suggesting that liver regeneration following IRI is mediated by hepatocyte proliferation.

Indexed as

Hepatocytesischemialiverreperfusion

Identifiers

PMID28331445
PMCPMC5349633
OpenAlexW2598863530

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.