Evidence map›Paper›PMID 16374859›Full record

ArticleHepatology (Baltimore, Md.)2006

Exendin-4, a glucagon-like protein-1 (GLP-1) receptor agonist, reverses hepatic steatosis in ob/ob mice.

Xiaokun Ding, Neeraj K Saxena, Songbai Lin, Nitika Arora Gupta, Narita Gupta, Frank A Anania

Erratum issued Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Hepatology (Baltimore, Md.), 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT01761318 (Magnetic Resonance Assessment of Victoza Efficacy in the Regression of Cardiovascular Dysfunction In Type 2 Diabetes Mellitus), which is not on this map. Cited by 250 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
250citing papers in PubMed, 6 pooled it
9.3field-weighted citation impact, top 2% 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.

NCT01761318 phase4completedstarted 2013, after this paper: background citation

Magnetic Resonance Assessment of Victoza Efficacy in the Regression of Cardiovascular Dysfunction In Type 2 Diabetes Mellitus

Ran2013Enrolled50Registered outcomes48Posted comparisons0ConditionsCardiovascular Disease, Diabetes Mellitus Type 2, Diastolic Dysfunction, Fatty LiverArmsliraglutide, Liraglutide - Placebo
Open the trial in the graph
3 · Its place in the literature

Who cites it

250 citing papers in PubMed, 6 syntheses or guidelines pooled it, 546 citations in OpenAlex.

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190 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
    Gupta, Narita [corrected to Gupta, Nitika Arora]
5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Xiaokun DingDivision of Digestive Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA.
Neeraj K Saxena
Songbai Lin
Nitika Arora Gupta
Narita Gupta
Frank A Anania
Emory University · USGTx (United States) · US

Funding

Emory Epithelial Pathobiology Research Development CenterR24DK064399 · NIDDK · EMORY UNIVERSITY · PI PARKOS, CHARLES A · 2003 to 2012
$5.3M
The Role of Leptin in Liver FibrogenesisR01DK062092 · NIDDK · UNIVERSITY OF MARYLAND BALTIMORE · PI ANANIA, FRANK A · 2003 to 2016
$3.9M
LIVER PEROXIDATION PRODUCTS AND LIVER FIBROSISR21AA012933 · NIAAA · UNIVERSITY OF MARYLAND BALTIMORE · PI ANANIA, FRANK A. · 2001 to 2003
$442k
The Role of Leptin in Liver FibrogenesisR56DK062092 · NIDDK · EMORY UNIVERSITY · PI ANANIA, FRANK A · 2012 to 2012
$207k
NIAAA NIH HHS AA12933NIAAA NIH HHS R21 AA012933NIDDK NIH HHS DK062092NIDDK NIH HHS DK064399NIDDK NIH HHS R01 DK062092NIDDK NIH HHS R24 DK064399NIDDK NIH HHS R56 DK062092
6 · The paper itself

Abstract

Nonalcoholic fatty liver disease (NAFLD) represents a burgeoning problem in hepatology, and is associated with insulin resistance. Exendin-4 is a peptide agonist of the glucagon-like peptide (GLP) receptor that promotes insulin secretion. The aim of this study was to determine whether administration of Exendin-4 would reverse hepatic steatosis in ob/ob mice. Ob/ob mice, or their lean littermates, were treated with Exendin-4 [10 microg/kg or 20 microg/kg] for 60 days. Serum was collected for measurement of insulin, adiponectin, fasting glucose, lipids, and aminotransferase concentrations. Liver tissue was procured for histological examination, real-time RT-PCR analysis and assay for oxidative stress. Rat hepatocytes were isolated and treated with GLP-1. Ob/ob mice sustained a reduction in the net weight gained during Exendin-4 treatment. Serum glucose and hepatic steatosis was significantly reduced in Exendin-4 treated ob/ob mice. Exendin-4 improved insulin sensitivity in ob/ob mice, as calculated by the homeostasis model assessment. The measurement of thiobarbituric reactive substances as a marker of oxidative stress was significantly reduced in ob/ob-treated mice with Exendin-4. Finally, GLP-1-treated hepatocytes resulted in a significant increase in cAMP production as well as reduction in mRNA expression of stearoyl-CoA desaturase 1 and genes associated with fatty acid synthesis; the converse was true for genes associated with fatty acid oxidation. In conclusion, Exendin-4 appears to effectively reverse hepatic steatosis in ob/ob mice by improving insulin sensitivity. Our data suggest that GLP-1 proteins in liver have a novel direct effect on hepatocyte fat metabolism.

Indexed as

Adipose TissueAlanine TransaminaseAnimalsBlood GlucoseCyclic AMPExenatideFatty LiverGlucagon-Like Peptide 1Glucagon-Like Peptide-1 ReceptorInsulin ResistanceLipid PeroxidationLiverMaleMiceMice, ObesePeptidesAlanine TransaminaseBlood GlucoseCyclic AMPExenatideGlp1r protein, mouseGlp1r protein, ratGlucagon-Like Peptide 1Glucagon-Like Peptide-1 ReceptorPeptidesPPAR alphaReceptors, GlucagonRNA, MessengerStearoyl-CoA DesaturaseSterol Regulatory Element Binding Protein 1Venoms

Identifiers

PMID16374859
PMCPMC2925424
OpenAlexW2075514437

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.