Evidence map›Paper›PMID 28494793›Full record

ArticleVirology journal2017

Real-time PCR assays for hepatitis B virus DNA quantification may require two different targets.

Chao Liu, Le Chang, Tingting Jia, Fei Guo, Lu Zhang, Huimin Ji, Junpeng Zhao, Lunan Wang

Abstract readEvaluation Study
In one paragraph

Article in Virology journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Zoonotic pathogens survey in free-living long-tailed macaques in Thailand.International journal of veterinary science and medicine · 2022
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  16. Performance Comparison of theBioMed research international · 2020
    Article
  17. HBV DNA Test Among Blood Donations May Require Two Amplification Targets.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2019
    Article
  18. Review
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.

Chao LiuNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China.
Le ChangNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China.
Tingting JiaDepartment of Clinical Laboratory, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.
Fei GuoNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China.
Lu ZhangNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China.
Huimin JiNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China.
Junpeng ZhaoNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China.
Lunan WangNational Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, No1 Dahua Road, Dongdan, Beijing, 100730, People's Republic of China. lunan99@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundQuantification Hepatitis B virus (HBV) DNA plays a critical role in the management of chronic HBV infections. However, HBV is a DNA virus with high levels of genetic variation, and drug-resistant mutations have emerged with the use of antiviral drugs. If a mutation caused a sequence mismatched in the primer or probe of a commercial DNA quantification kit, this would lead to an underestimation of the viral load of the sample. The aim of this study was to determine whether commercial kits, which use only one pair of primers and a single probe, accurately quantify the HBV DNA levels and to develop an improved duplex real-time PCR assay.

methodsWe developed a new duplex real-time PCR assay that used two pairs of primers and two probes based on the conserved S and C regions of the HBV genome. We performed HBV DNA quantitative detection of HBV samples and compared the results of our duplex real-time PCR assays with the COBAS TaqMan HBV Test version 2 and Daan real-time PCR assays. The target region of the discordant sample was amplified, sequenced, and validated using plasmid.

resultsThe results of the duplex real-time PCR were in good accordance with the commercial COBAS TaqMan HBV Test version 2 and Daan real-time PCR assays. We showed that two samples from Chinese HBV infections underestimated viral loads when quantified by the Roche kit because of a mismatch between the viral sequence and the reverse primer of the Roche kit. The HBV DNA levels of six samples were undervalued by duplex real-time PCR assays of the C region because of mutations in the primer of C region.

conclusionsWe developed a new duplex real-time PCR assay, and the results of this assay were similar to the results of commercial kits. The HBV DNA level could be undervalued when using the COBAS TaqMan HBV Test version 2 for Chinese HBV infections owing to a mismatch with the primer/probe. A duplex real-time PCR assay based on the S and C regions could solve this problem to some extent.

Indexed as

AdultAgedAged, 80 and overChildDNA PrimersDNA, ViralFemaleHepatitis B virusHumansInfantMaleMiddle AgedOligonucleotide ProbesReal-Time Polymerase Chain ReactionViral LoadYoung AdultDNA PrimersDNA, ViralOligonucleotide ProbesCOBAS TaqMan HBV Test version 2Duplex real-time PCR assaysHepatitis B virusMutationQuantification

Identifiers

PMID28494793
PMCPMC5427580

What OpenQuestion holds

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Registered trials

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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.