Evidence map›Paper›PMID 27580956›Full record

ArticleJournal of clinical laboratory analysis2017

Comparison of Three Different Hepatitis C Virus Genotyping Methods: 5'NCR PCR-RFLP, Core Type-Specific PCR, and NS5b Sequencing in a Tertiary Care Hospital in South India.

Hubert D-J Daniel, Joel David, Sukanya Raghuraman, Manu Gnanamony, George M Chandy, Gopalan Sridharan, Priya Abraham

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact, top 87% 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

5 citing papers in PubMed, 7 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

7 authors at 1 institution in 1 country.

Hubert D-J DanielDepartment of Clinical Virology, Christian Medical College, Vellore, India.
Joel DavidDepartment of Clinical Virology, Christian Medical College, Vellore, India.
Sukanya RaghuramanDepartment of Clinical Virology, Christian Medical College, Vellore, India.
Manu GnanamonyDepartment of Clinical Virology, Christian Medical College, Vellore, India.
George M ChandyDepartment of Gastrointestinal Sciences, Christian Medical College, Vellore, India.
Gopalan SridharanDepartment of Clinical Virology, Christian Medical College, Vellore, India.
Priya AbrahamDepartment of Clinical Virology, Christian Medical College, Vellore, India.
Christian Medical College & Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBased on genetic heterogeneity, hepatitis C virus (HCV) is classified into seven major genotypes and 64 subtypes. In spite of the sequence heterogeneity, all genotypes share an identical complement of colinear genes within the large open reading frame. The genetic interrelationships between these genes are consistent among genotypes. Due to this property, complete sequencing of the HCV genome is not required. HCV genotypes along with subtypes are critical for planning antiviral therapy. Certain genotypes are also associated with higher progression to liver cirrhosis.

methodsIn this study, 100 blood samples were collected from individuals who came for routine HCV genotype identification. These samples were used for the comparison of two different genotyping methods (5'NCR PCR-RFLP and HCV core type-specific PCR) with NS5b sequencing.

resultsOf the 100 samples genotyped using 5'NCR PCR-RFLP and HCV core type-specific PCR, 90% (κ = 0.913, P < 0.00) and 96% (κ = 0.794, P < 0.00) correlated with NS5b sequencing, respectively. Sixty percent and 75% of discordant samples by 5'NCR PCR-RFLP and HCV core type-specific PCR, respectively, belonged to genotype 6. All the HCV genotype 1 subtypes were classified accurately by both the methods.

conclusionThis study shows that the 5'NCR-based PCR-RFLP and the HCV core type-specific PCR-based assays correctly identified HCV genotypes except genotype 6 from this region. Direct sequencing of the HCV core region was able to identify all the genotype 6 from this region and serves as an alternative to NS5b sequencing.

Indexed as

Genotyping TechniquesHepacivirusHepatitis CHumansIndiaPolymerase Chain ReactionPolymorphism, Restriction Fragment LengthRNA-Dependent RNA PolymeraseRNA, ViralSequence Analysis, RNATertiary Care CentersViral Core ProteinsViral Nonstructural ProteinsNS-5 protein, hepatitis C virusRNA-Dependent RNA PolymeraseRNA, ViralViral Core ProteinsViral Nonstructural Proteins5′NCR PCR-RFLPHCV core type-specific PCRHCV genotypeHCV subtypeNS5b sequencing

Identifiers

PMID27580956
PMCPMC6816979
OpenAlexW2517923646

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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.