Evidence map›Paper›PMID 18613968›Full record

ArticleVirology journal2008

Correlation between pre-treatment quasispecies complexity and treatment outcome in chronic HCV genotype 3a.

Isabelle Moreau, John Levis, Orla Crosbie, Elizabeth Kenny-Walsh, Liam J Fanning

Abstract read
In one paragraph

Article in Virology journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. The quasispecies nature and biological implications of the hepatitis C virus.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2009
    Review
  12. Predicting response to hepatitis C therapy.The Journal of clinical investigation · 2009
    Article
  13. Article
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.

Isabelle MoreauMolecular Virology Diagnostic & Research Laboratory, Department of Medicine, Clinical Sciences Building, Cork University Hospital, Cork, Ireland. i.moreau@ucc.ie
John Levis
Orla Crosbie
Elizabeth Kenny-Walsh
Liam J Fanning

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pre-treatment HCV quasispecies complexity and diversity may predict response to interferon based anti-viral therapy. The objective of this study was to retrospectively (1) examine temporal changes in quasispecies prior to the start of therapy and (2) investigate extensively quasispecies evolution in a group of 10 chronically infected patients with genotype 3a, treated with pegylated alpha2a-Interferon and ribavirin. The degree of sequence heterogeneity within the hypervariable region 1 was assessed by analyzing 20-30 individual clones in serial serum samples. Genetic parameters, including amino acid Shannon entropy, Hamming distance and genetic distance were calculated for each sample. Treatment outcome was divided into (1) sustained virological responders (SVR) and (2) treatment failure (TF). Our results indicate, (1) quasispecies complexity and diversity are lower in the SVR group, (2) quasispecies vary temporally and (3) genetic heterogeneity at baseline can be use to predict treatment outcome. We discuss the results from the perspective of replicative homeostasis.

Indexed as

Genetic VariationAdultAntiviral AgentsDrug Therapy, CombinationEvolution, MolecularFemaleGenotypeHepacivirusHepatitis C, ChronicHumansInterferon-alphaInterferon alpha-2MaleMiddle AgedMolecular Sequence DataPhylogenyAntiviral AgentsInterferon-alphaInterferon alpha-2peginterferon alfa-2aPolyethylene GlycolsRecombinant ProteinsRibavirin

Identifiers

PMID18613968
PMCPMC2483966

What OpenQuestion holds

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LicenceCC BY
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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.