Evidence map›Paper›PMID 39816748›Full record

ArticleRoyal Society open science2025

Application of a new composite genetic marker semen-specific methylation-microhaplotype in the analysis of semen-vaginal fluid mixtures.

Dan Wen, Hao Xing, Xuan Tang, Yue Wang, Bowei Jiang, Jienan Li, Ying Liu, Lagabaiyila Zha

Abstract read
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Article in Royal Society open science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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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

8 authors.

Dan WenDepartment of Forensic Medicine, School of Basic Medical Sciences, Central South University, No172. Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.ORCID https://orcid.org/0000-0003-3203-2229
Hao XingDepartment of Forensic Medicine, School of Basic Medical Sciences, Central South University, No172. Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.
Xuan TangDepartment of Forensic Medicine, School of Basic Medical Sciences, Central South University, No172. Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.
Yue WangDepartment of Forensic Medicine, School of Basic Medical Sciences, Central South University, No172. Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.
Bowei JiangThe First Research Institute of the Ministry of Public Security of P.R.C, No.1. Shouti South Road, Haidian District, Beijing 100044, People's Republic of China.
Jienan LiDepartment of Forensic Medicine, School of Basic Medical Sciences, Central South University, No172. Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.
Ying LiuDepartment of Oral Implantology, Xiangya Hospital of Stomatology, Central South University, No72. Xiangya Road, Changsha, Hunan 410028, People's Republic of China.
Lagabaiyila ZhaDepartment of Forensic Medicine, School of Basic Medical Sciences, Central South University, No172. Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.ORCID https://orcid.org/0000-0003-2207-4441

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA mixtures containing semen and vaginal fluid are common biological samples in forensic analysis. However, the analysis of semen-vaginal fluid mixtures remains challenging. In this study, to solve these problems, it is proposed to combine semen-specific CpG sites and closely related microhaplotype sites to form a new composite genetic marker (semen-specific methylation-microhaplotype). Six methylation-microhaplotype loci were selected. To further improve discrimination power, five methylation-SNP loci were also included. The methylation levels and genotypes of these selected loci were obtained using massively parallel sequencing technology. Except for loci MMH04ZHA019 and MMH17ZHA059, the remaining nine loci were successfully sequenced. For the successfully sequenced loci, they performed well in identifying individuals and body fluids. An allele categorization model was developed using K-nearest neighbour algorithm, which was then used to predict allele types in semen-vaginal fluid mixtures. These loci were able to confirm the presence of semen and link semen to a true donor in semen-vaginal fluid mixtures with mixing ratios of 10:1, 9:1, 5:1, 4:1, 1:1, 1:3, 1:4, 1:8 and 1:9 (semen:vaginal fluid). This preliminary study suggests that this new composite genetic marker has great potential as a supplementary tool to commonly used genetic markers (STR, etc.) for analysing semen-vaginal fluid mixtures.

Indexed as

DNA methylationforensic geneticsK-nearest neighbour algorithmmassively parallel sequencingmicrohaplotypesemen–vaginal fluid mixtures

Identifiers

PMID39816748
PMCPMC11732431

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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.