Evidence map›Paper›PMID 21703998›Full record

ArticleGastroenterology2011

Hepatic free cholesterol accumulates in obese, diabetic mice and causes nonalcoholic steatohepatitis.

Derrick M Van Rooyen, Claire Z Larter, W Geoffrey Haigh, Matthew M Yeh, George Ioannou, Rahul Kuver, Sum P Lee, Narci C Teoh, Geoffrey C Farrell

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In one paragraph

Article in Gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 165 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
165citing papers in PubMed, 2 pooled it
16.2field-weighted citation impact, top 1% 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

165 citing papers in PubMed, 2 syntheses or guidelines pooled it, 343 citations in OpenAlex.

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Derrick M Van RooyenLiver Research Group, ANU Medical School at The Canberra Hospital, Garran, ACT, Australia.
Claire Z Larter
W Geoffrey Haigh
Matthew M Yeh
George Ioannou
Rahul Kuver
Sum P Lee
Narci C Teoh
Geoffrey C Farrell
Canberra Hospital · AUUniversity of Washington · USUniversity of Washington Medical Center · USVA Puget Sound Health Care System · US

Funding

Biliary oxysterols and cholangiocarcinomaR01CA114403 · NCI · SEATTLE INST FOR BIOMEDICAL/CLINICAL RES · PI KUVER, RAHUL P · 2006 to 2010
$1.1M
NCI NIH HHS R01 CA114403NCI NIH HHS R01CA114403
6 · The paper itself

Abstract

BACKGROUND &

aimsType 2 diabetes and nonalcoholic steatohepatitis (NASH) are associated with insulin resistance and disordered cholesterol homeostasis. We investigated the basis for hepatic cholesterol accumulation with insulin resistance and its relevance to the pathogenesis of NASH.

methodsAlms1 mutant (foz/foz) and wild-type NOD.B10 mice were fed high-fat diets that contained varying percentages of cholesterol; hepatic lipid pools and pathways of cholesterol turnover were determined. Hepatocytes were exposed to insulin concentrations that circulate in diabetic foz/foz mice.

resultsHepatic cholesterol accumulation was attributed to up-regulation of low-density lipoprotein receptor via activation of sterol regulatory element binding protein 2 (SREBP-2), reduced biotransformation to bile acids, and suppression of canalicular pathways for cholesterol and bile acid excretion in bile. Exposing primary hepatocytes to concentrations of insulin that circulate in diabetic Alms1 mice replicated the increases in SREBP-2 and low-density lipoprotein receptor and suppression of bile salt export pump. Removing cholesterol from diet prevented hepatic accumulation of free cholesterol and NASH; increasing dietary cholesterol levels exacerbated hepatic accumulation of free cholesterol, hepatocyte injury or apoptosis, macrophage recruitment, and liver fibrosis.

conclusionsIn obese, diabetic mice, hyperinsulinemia alters nuclear transcriptional regulators of cholesterol homeostasis, leading to hepatic accumulation of free cholesterol; the resulting cytotoxicity mediates transition of steatosis to NASH.

Indexed as

Insulin ResistanceAnimalsApoptosisBile Acids and SaltsCell Cycle ProteinsCells, CulturedCholesterol, DietaryDiabetes ComplicationsDiabetes Mellitus, Type 2Disease Models, AnimalDNA-Binding ProteinsEsterificationFatty LiverFemaleHepatocytesHydrolysisAlms1 protein, mouseBile Acids and SaltsCell Cycle ProteinsCholesterol, DietaryDNA-Binding ProteinsInsulinReceptors, LDLSrebf2 protein, mouseSterol Regulatory Element Binding Protein 2

Identifiers

PMID21703998
PMCPMC3186822
OpenAlexW2024639496

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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.