Evidence map›Paper›PMID 23616453›Full record

ArticleJournal of clinical microbiology2013

Sequencing assays for failed genotyping with the versant hepatitis C virus genotype assay (LiPA), version 2.0.

Sylvie Larrat, Jean-Dominique Poveda, Camille Coudret, Katia Fusillier, Nelly Magnat, Anne Signori-Schmuck, Vincent Thibault, Patrice Morand

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Article in Journal of clinical microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

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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.

Sylvie LarratLaboratoire de Virologie, Département des Agents Infectieux, Pôle Biologie, Centre Hospitalier Universitaire Grenoble, Grenoble, France. slarrat@chu-grenoble.fr
Jean-Dominique Poveda
Camille Coudret
Katia Fusillier
Nelly Magnat
Anne Signori-Schmuck
Vincent Thibault
Patrice Morand

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For optimal antiviral therapy, the hepatitis C virus (HCV) genotype needs to be determined, as it remains a strong predictor of sustained viral response. In this study, we assessed the number of HCV genotyping results that could not be determined using the commercially available line probe assay (LiPA) (Versant hepatitis C virus genotype 2.0 assay) in a large international panel of samples from 9,874 HCV-positive patients. In-house sequencing assays targeting the 5' untranslated region (UTR), core region, NS3 region, and NS5B region of the HCV genome and phylogenetic analyses were used to resolve these LiPA failures. Among all cases, the genotypes of 51 samples (0.52%) could not be determined with the LiPA. These undetermined results were observed more frequently among samples from non-European regions (mainly the Arabian Peninsula). The use of sequencing assays coupled with phylogenetic analysis provided reliable genotype results for 86% of the LiPA failures, which exhibited higher rates of genotypes 4, 5, and 6 than did LiPA-resolved genotypes. As expected, the 5' UTR was not sufficiently variable for clear discrimination between genotypes 1 and 6, but it also resulted in errors in classification of some genotype 3 and 4 cases using well-known Web-based BLAST programs. This study demonstrates the low frequency of genotyping failures with the Versant hepatitis C virus genotype 2.0 assay (LiPA) and also underlines the need for a complex combination of sequences and phylogenetic analyses in order to genotype these particular HCV strains correctly.

Indexed as

False Negative ReactionsSequence Analysis, DNAAdultAgedBase SequenceFemaleGenetic VariationGenotypeHepacivirusHepatitis CHumansMaleMiddle AgedMolecular Diagnostic TechniquesMolecular Sequence DataMutationRNA, Viral

Identifiers

PMID23616453
PMCPMC3754683

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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.