Evidence map›Paper›PMID 32761657›Full record

ArticleJournal of clinical laboratory analysis2021

Two simple and inexpensive methods for preparing DNA suitable for digital PCR from a small number of cells in 96-well plates.

Ziang Zou, Linna Guo, Parimah Ahmadi, Philip Hartjen, Martin Gosau, Ralf Smeets, Lan Kluwe

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.2field-weighted citation impact, top 50% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Cell-Free DNA-Based Theranostics for Inflammatory Disorders.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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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.

Ziang ZouLaboratory for Tumor Genetics and Regenerative Medicine, Department of Neurology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.ORCID https://orcid.org/0000-0002-5011-5549
Linna GuoDepartment of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.ORCID https://orcid.org/0000-0001-5710-7528
Parimah AhmadiDepartment of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Philip HartjenDepartment of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
Martin GosauDepartment of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
Ralf SmeetsDepartment of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
Lan KluweLaboratory for Tumor Genetics and Regenerative Medicine, Department of Neurology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
Universität Hamburg · DE

Funding

China Scholarship Council 201806370248China Scholarship Council 201806370249
6 · The paper itself

Abstract

backgroundAlthough DNA of high quality can be easily prepared from cultured cells with commercially available kits, many studies involve a large number of samples which increases the cost drastically. We optimized two simple and inexpensive methods for preparing DNA suitable for digital PCR from a small number of cells directly from wells of 96-well plates.

methodsCells (number: 10

resultsFor 1000 cells from one primary culture and two tumor cell lines, DNA was reproducible and obtained with recovery rate (obtained/expected amount of DNA) in the range of 50%-90% as measured by the fluorometer dyes instrument Qubit. Using 8 out of a total of 10 µL DNA solution for 1000 cells, both conventional PCR and digital PCR were successful. For digital PCR, more than 1600 positive droplets were obtained for DNA from 1000 cells using the Direct PCR

conclusionsTwo methods are efficient, especially the Direct PCR

Indexed as

Polymerase Chain ReactionCell Line, TumorCells, CulturedDNAHumansDNA96-well plateschelex100digital PCRdirect PCRsmall number of cells

Identifiers

PMID32761657
PMCPMC7843281
OpenAlexW3047770194

What OpenQuestion holds

Textmetadata
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.