Evidence map›Paper›PMID 34582648›Full record

ArticleAsian Pacific journal of cancer prevention : APJCP2021

Assessment of Metastatic Colorectal Cancer (CRC) Tissues for Interpreting Genetic Data in Forensic Science by Applying 16 STR Loci among Saudi Patients.

Wedad Saeed Al-Qahtani, Tahani Mohamed Al-Hazani, Fatmah Ahmed Safhi, Mashael Alhumaidi Alotaibi, Dalia Mostafa Domiaty, Salha M S Al-Shamrani, Eman Alshehri, Amani Mohammed Alotaibi, Saad Alkahtani

Open access · goldAbstract read
In one paragraph

Article in Asian Pacific journal of cancer prevention : APJCP, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. STR profiling in a cohort of Saudi patients with acute leukemia.Journal of Taibah University Medical Sciences · 2025
    Article
  2. 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

9 authors at 5 institutions in 1 country.

Wedad Saeed Al-QahtaniDepartment of Forensic Sciences, College of Criminal Justice, Naif Arab University for Security Sciences, Riyadh 11452, Saudi Arabia.
Tahani Mohamed Al-HazaniDepartment of Biology, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11940, Saudi Arabia.
Fatmah Ahmed SafhiDepartment of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
Mashael Alhumaidi AlotaibiDepartment of Biology, College of Science, Jouf University, Saudi Arabia.
Dalia Mostafa DomiatyUniversity of Jeddah, College of Science, Department of Biology, Jeddah 21493, Saudi Arabia.
Salha M S Al-ShamraniUniversity of Jeddah, College of Science, Department of Biology, Jeddah 21493, Saudi Arabia.
Eman AlshehriDepartment of Zoology, College of Science, King Saud University, Saudi Arabia.
Amani Mohammed AlotaibiKing Saud Medical City, Riyadh, Saudi Arabia.
Saad AlkahtaniDepartment of Zoology, College of Science, King Saud University, Saudi Arabia.
King Saud University · SAAl Jouf University · SAKing Saud Medical City · SANaif Arab University for Security Sciences · SAPrincess Nourah bint Abdulrahman University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn forensic science, there are cases when the only available provider of biological data is samples of malignant tissues. It can be useful in identification and/or paternity tests. Still, such samples have ambiguities because of microsatellite instability (MSI) and loss of heterozygosity (LOH) effects, being often related to neoplasia.

methodsThis research evaluates 16 autosomal short tandem repeat (STR) loci (traditional in forensic investigations) to get genetic data. MSI and LOH were estimated in DNA patterns derived from 73 Saudi respondents (30 healthy individuals and 43 persons with diagnosed colorectal cancer (CRC). Upon deriving DNA from blood, CRC specimens were obtained in both groups, along with the adjoining normal non-cancerous tissues (N-CRC). All specimens and 16 loci (15 STR loci and Amelogenin) were evaluated. Moreover, both colorectal samples were histologically analyzed utilizing HandE staining.

resultsFindings revealed non-essential variability in genetic information because of MSI and/or LOH. In CRC, mutations rates were 0.42% (MSI) and 1.62% (LOH). In N-CRC, mutation rates were 0.00% (MSI) and 0.59% (LOH). Further, LOH-related deviations were recorded in 5 loci out of 16. MSI-related deviations were recorded in 4 out of 16 loci, being present in CRC samples only. Genetic deviations within the marker loci might inform about false homozygosity/heterozygosity. Similarly, false gender might come from improper interpretation of DNA profiles. Finally, histopathological trials showed considerable histopathological alterations contrasted to N-CRC.

conclusionThis study is unique in demonstrating the application of 16 autosomal STRs from CRC samples and their comparison with the adjoining N-CRCs in Saudi participants, contributing to the field of forensic science. The experiment revealed no considerable distinctions, while showing that cancer tissues might display MSI and LOH effects that might challenge data interpretation, if STRs are to be applied in the forensic investigation.

Indexed as

Forensic PathologyGenetic LociColorectal NeoplasmsDNAHumansLoss of HeterozygosityMicrosatellite InstabilityMicrosatellite RepeatsSaudi ArabiaDNAadjoining non-cancerous tissue marginalsColorectal cancer tissuesForensic pathologyNeoplastic tissuesShort tandem repeat PCR

Identifiers

PMID34582648
PMCPMC8850881
OpenAlexW3204485022

What OpenQuestion holds

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LicenceCC BY
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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.