Evidence map›Paper›PMID 28252870›Full record

ArticleCroatian medical journal2017

Comparison of preprocessing methods and storage times for touch DNA samples.

Hui Dong, Jing Wang, Tao Zhang, Jian-Ye Ge, Ying-Qiang Dong, Qi-Fan Sun, Chao Liu, Cai-Xia Li

Abstract read
In one paragraph

Article in Croatian medical journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Touch DNA Sampling Methods: Efficacy Evaluation and Systematic Review.International journal of molecular sciences · 2022
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Comparison of the M-VacJournal of forensic sciences · 2020
    Article
  6. Article
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.

Hui Dong
Jing Wang
Tao Zhang
Jian-Ye Ge
Ying-Qiang Dong
Qi-Fan Sun
Chao Liu
Cai-Xia LiCai-xia Li, Key Laboratory of Forensic Genetics, Institute of Forensic Science, Ministry of Public Security, Beijing100038, China, licaixia@tsinghua.org.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo select appropriate preprocessing methods for different substrates by comparing the effects of four different preprocessing methods on touch DNA samples and to determine the effect of various storage times on the results of touch DNA sample analysis.

methodHand touch DNA samples were used to investigate the detection and inspection results of DNA on different substrates. Four preprocessing methods, including the direct cutting method, stubbing procedure, double swab technique, and vacuum cleaner method, were used in this study. DNA was extracted from mock samples with four different preprocessing methods. The best preprocess protocol determined from the study was further used to compare performance after various storage times. DNA extracted from all samples was quantified and amplified using standard procedures.

resultsThe amounts of DNA and the number of alleles detected on the porous substrates were greater than those on the non-porous substrates. The performances of the four preprocessing methods varied with different substrates. The direct cutting method displayed advantages for porous substrates, and the vacuum cleaner method was advantageous for non-porous substrates. No significant degradation trend was observed as the storage times increased.

conclusionDifferent substrates require the use of different preprocessing method in order to obtain the highest DNA amount and allele number from touch DNA samples. This study provides a theoretical basis for explorations of touch DNA samples and may be used as a reference when dealing with touch DNA samples in case work.

Indexed as

HandTouchAllelesDNADNA FingerprintingHumansSpecimen HandlingDNA

Identifiers

PMID28252870
PMCPMC5346895

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.