Evidence map›Paper›PMID 21995947›Full record

ArticleGastroenterology2012

A high-cholesterol diet exacerbates liver fibrosis in mice via accumulation of free cholesterol in hepatic stellate cells.

Toshiaki Teratani, Kengo Tomita, Takahiro Suzuki, Tetsuya Oshikawa, Hirokazu Yokoyama, Katsuyoshi Shimamura, Susumu Tominaga, Sadayuki Hiroi, Rie Irie, Yoshikiyo Okada and 8 more

Abstract read
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In one paragraph

Article in Gastroenterology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 4% 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

128 citing papers in PubMed, 1 synthesis or guideline pooled it, 230 citations in OpenAlex.

  1. Pooled it
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  18. MASH: the nexus of metabolism, inflammation, and fibrosis.The Journal of clinical investigation · 2025
    Review
  19. Review
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68 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 3 institutions in 1 country.

Toshiaki TerataniDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.
Kengo Tomita
Takahiro Suzuki
Tetsuya Oshikawa
Hirokazu Yokoyama
Katsuyoshi Shimamura
Susumu Tominaga
Sadayuki Hiroi
Rie Irie
Yoshikiyo Okada
Chie Kurihara
Hirotoshi Ebinuma
Hidetsugu Saito
Ryota Hokari
Kazuo Sugiyama
Takanori Kanai
Soichiro Miura
Toshifumi Hibi
Keio University · JPNational Defense Medical College · JPKawasaki Municipal Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimsSome studies have indicated that dietary cholesterol has a role in the progression of liver fibrosis. We investigated the mechanisms by which dietary cholesterol might contribute to hepatic fibrogenesis.

methodsC57BL/6 mice were fed a high-cholesterol diet or a control diet for 4 weeks; liver fibrosis then was induced by bile-duct ligation or carbon tetrachloride administration. Hepatic stellate cells (HSCs) were isolated from mice fed high-cholesterol diets or from Niemann-Pick type C1-deficient mice, which accumulate intracellular free cholesterol.

resultsAfter bile-duct ligation or carbon tetrachloride administration, mice fed high-cholesterol diets had significant increases in liver fibrosis and activation of HSCs compared with mice fed control diets. There were no significant differences in the degree of hepatocellular injury or liver inflammation, including hepatocyte apoptosis or Kupffer cell activation, between mice fed high-cholesterol or control diets. Levels of free cholesterol were much higher in HSCs from mice fed high-cholesterol diets than those fed control diets. In cultured HSCs, accumulation of free cholesterol in HSCs increased levels of Toll-like receptor 4 (TLR4), leading to down-regulation of bone morphogenetic protein and activin membrane-bound inhibitor (a pseudoreceptor for transforming growth factor [TGF]β); the HSCs became sensitized to TGFβ-induced activation. Liver fibrosis was not aggravated by the high-cholesterol diet in C3H/HeJ mice, which express a mutant form of TLR4; HSCs that express mutant TLR4 were not activated by accumulation of free cholesterol.

conclusionsDietary cholesterol aggravates liver fibrosis because free cholesterol accumulates in HSCs, leading to increased TLR4 signaling, down-regulation of bone morphogenetic protein and activin membrane-bound inhibitor, and sensitization of HSC to TGFβ. This pathway might be targeted by antifibrotic therapies.

Indexed as

AnimalsApoptosisBile DuctsCarbon TetrachlorideCholesterol, DietaryDisease Models, AnimalDisease ProgressionHepatic Stellate CellsIntracellular Signaling Peptides and ProteinsKupffer CellsLigationLiver CirrhosisMaleMembrane ProteinsMiceMice, Inbred C3HBambi protein, mouseCarbon TetrachlorideCholesterol, DietaryIntracellular Signaling Peptides and ProteinsMembrane ProteinsNiemann-Pick C1 ProteinNpc1 protein, mouseProteinsTlr4 protein, mouseToll-Like Receptor 4Transforming Growth Factor beta

Identifiers

PMID21995947
OpenAlexW1996266503

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.