Evidence map›Paper›PMID 17213339›Full record

ArticleGut2007

The genotype 3-specific hepatitis C virus core protein residue phenylalanine 164 increases steatosis in an in vitro cellular model.

C Hourioux, R Patient, A Morin, E Blanchard, A Moreau, S Trassard, B Giraudeau, P Roingeard

Open access · greenAbstract read
In one paragraph

Article in Gut, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
11.9field-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

34 citing papers in PubMed, 106 citations in OpenAlex.

  1. Review
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  3. Article
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  6. Article
  7. Lipid Droplets in Health and Disease.Lipids in health and disease · 2017
    Review
  8. Article
  9. Article
  10. Insulin resistance and its consequences in chronic hepatitis C.Clinical and experimental hepatology · 2015
    Review
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  12. Article
  13. Article
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  15. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

C HouriouxUniversité François Rabelais, INSERM ERI 19 & CHRU de Tours, 10 boulevard Tonnellé, F-37032 Tours Cedex, France.
R Patient
A Morin
E Blanchard
A Moreau
S Trassard
B Giraudeau
P Roingeard
Inserm · FRUniversité de Tours · FRCentre Hospitalier Universitaire de Tours · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsThe prevalence and severity of liver steatosis are higher in patients infected with genotype 3 hepatitis C virus (HCV) than in patients infected with other genotypes. HCV core protein is known to affect lipid metabolism, inducing lipid droplet accumulation both in vitro and in vivo. An in vitro cellular model was used to investigate whether an HCV core protein with residues specific to genotype 3 increased this phenomenon.

methodsSequence comparisons for HCV core protein domain II, which is known to interact with lipid droplets, identified the phenylalanine (F) residue at position 164 as the only residue specific to genotype 3. The area covered by lipid droplets in sections of cells producing a wild-type genotype 1a HCV core protein was compared with that in cells producing a Y164F mutant protein.

resultsCumulative lipid droplet area was significantly greater in sections of cells producing the Y164F mutant HCV core protein than in cells producing the wild-type protein (p<0.001). The frequency of cell sections containing more than 3 mum(2) of lipid droplets, in particular, was higher for the mutant than for the wild-type protein.

conclusionThe data provide a molecular explanation for HCV genotype 3-specific lipid accumulation. This difference between genotypes may be due to phenylalanine having a higher affinity for lipids than tyrosine (Y). These observations provide useful information for further studies of the mechanisms involved in HCV-induced steatosis.

Indexed as

AnimalsCells, CulturedCricetinaeFatty LiverGene Expression RegulationGenotypeHepacivirusHepatitis C, ChronicLipidsMicroscopy, ConfocalMicroscopy, ElectronMutationPhenylalanineSequence AlignmentViral Core ProteinsLipidsnucleocapsid protein, Hepatitis C virusPhenylalanineViral Core Proteins

Identifiers

PMID17213339
PMCPMC2267372
OpenAlexW2158383761

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.