Evidence map›Paper›PMID 15365015›Full record

ArticleJournal of clinical microbiology2004

Accurate representation of the hepatitis C virus quasispecies in 5.2-kilobase amplicons.

Zhi Liu, Dale M Netski, Qing Mao, Oliver Laeyendecker, John R Ticehurst, Xiao-Hong Wang, David L Thomas, Stuart C Ray

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

22 citing papers in PubMed, 25 citations in OpenAlex.

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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

8 authors at 3 institutions in 2 countries.

Zhi LiuDepartment of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
Dale M Netski
Qing Mao
Oliver Laeyendecker
John R Ticehurst
Xiao-Hong Wang
David L Thomas
Stuart C Ray
Army Medical University · CNJohns Hopkins University · USSouthwest Hospital · CN

Funding

SEQUENCE SELECTION AND PERSISTENCE OF HEPATITIS CR01DK057998 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI RAY, STUART C · 1999 to 2003
$1.1M
Intramural NIH HHS Z99 AI999999NIDDK NIH HHS R01 DK057998NIDDK NIH HHS R01-DK57998
6 · The paper itself

Abstract

Hepatitis C virus (HCV) exists as a swarm of genetically distinct but related variants, or a quasispecies, whose complexity and sequence evolution are critical to studies of viral pathogenesis. Because most studies of the HCV quasispecies have focused on a relatively small genomic segment, the first hypervariable region of the E2 gene, it is possible that viral complexity is occasionally underestimated (due to primer mismatch) and that sequence evolution is misperceived due to unrecognized covariation. This report describes a sensitive and reproducible method to amplify most of the HCV genome as a single 5.2-kb amplicon by using primers directed at relatively conserved genomic segments. Using 52 specimens obtained during acute infection over a range of viral RNA concentrations, the overall rate of successful amplification was 94% and varied in a concentration-dependent manner, with successful amplification in 26 of 26 (100%) specimens at greater than 10(5) IU/ml, 15 of 16 (94%) at 10(4) to 10(5) IU/ml, 6 of 7 (86%) at 10(3) to 10(4) IU/ml, and 2 of 3 (67%) at less than 10(3) IU/ml. Quasispecies complexity, determined by using this novel long-amplicon method followed by heteroduplex mobility assay combined with single-stranded conformational polymorphism (HDA+SSCP) analysis, was very high, even during acute HCV infection, when 10 to 21 (median, 16) different HDA+SSCP patterns were detected among 33 cDNA clones examined. Replicate analyses indicate that this diversity is not dominated by random errors generated during amplification. Therefore, the HCV quasispecies is highly complex even during acute infection and is accurately represented in amplicons representing more than half of the viral genome.

Indexed as

Amino Acid SequenceBase SequenceDNA PrimersGene AmplificationGenetic VariationHepacivirusMolecular Sequence DataPolymerase Chain ReactionPolymorphism, Single-Stranded ConformationalReproducibility of ResultsSensitivity and SpecificitySequence AlignmentSequence Homology, Amino AcidDNA Primers

Identifiers

PMID15365015
PMCPMC516368
OpenAlexW2140539990

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.